./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 150a66a836464f467fb90ec51b7c24919c6718d6acc15c3a2ae1cbeb65f65711 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:44:25,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:44:25,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:44:25,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:44:25,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:44:25,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:44:25,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:44:25,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:44:25,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:44:25,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:44:25,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:44:25,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:44:25,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:44:25,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:44:25,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:44:25,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:44:25,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:44:25,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:44:25,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:44:25,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:44:25,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:44:25,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:44:25,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:44:25,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:44:25,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:44:25,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:44:25,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:44:25,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:44:25,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:44:25,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:44:25,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:44:25,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:44:25,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:44:25,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:44:25,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:44:25,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:44:25,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:44:25,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:44:25,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:44:25,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:44:25,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:44:25,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-09 08:44:25,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:44:25,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:44:25,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:44:25,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:44:25,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:44:25,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:44:25,929 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:44:25,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:44:25,930 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:44:25,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:44:25,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:44:25,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:44:25,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:44:25,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:44:25,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:44:25,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:44:25,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:44:25,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:44:25,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:44:25,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:44:25,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:44:25,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:44:25,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:44:25,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:44:25,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:44:25,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:44:25,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:44:25,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 150a66a836464f467fb90ec51b7c24919c6718d6acc15c3a2ae1cbeb65f65711 [2021-11-09 08:44:26,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:44:26,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:44:26,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:44:26,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:44:26,305 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:44:26,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i [2021-11-09 08:44:26,434 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/data/1b1d4f4eb/e25d6d6c015c4c0db9c7b1bac6a4a7bb/FLAG0935ab32f [2021-11-09 08:44:27,037 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:44:27,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i [2021-11-09 08:44:27,044 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/data/1b1d4f4eb/e25d6d6c015c4c0db9c7b1bac6a4a7bb/FLAG0935ab32f [2021-11-09 08:44:27,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/data/1b1d4f4eb/e25d6d6c015c4c0db9c7b1bac6a4a7bb [2021-11-09 08:44:27,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:44:27,407 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:44:27,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:44:27,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:44:27,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:44:27,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1cce1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27, skipping insertion in model container [2021-11-09 08:44:27,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:44:27,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:44:27,647 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i[873,886] [2021-11-09 08:44:27,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:44:27,668 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:44:27,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/sv-benchmarks/c/loop-zilu/benchmark16_conjunctive.i[873,886] [2021-11-09 08:44:27,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:44:27,700 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:44:27,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27 WrapperNode [2021-11-09 08:44:27,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:44:27,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:44:27,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:44:27,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:44:27,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:44:27,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:44:27,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:44:27,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:44:27,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:44:27,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:44:27,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:44:27,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:44:27,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (1/1) ... [2021-11-09 08:44:27,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:44:27,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:27,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:44:27,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:44:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:44:27,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:44:27,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:44:27,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:44:28,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:44:28,144 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 08:44:28,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:44:28 BoogieIcfgContainer [2021-11-09 08:44:28,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:44:28,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:44:28,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:44:28,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:44:28,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:44:27" (1/3) ... [2021-11-09 08:44:28,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1fbe2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:28, skipping insertion in model container [2021-11-09 08:44:28,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:44:27" (2/3) ... [2021-11-09 08:44:28,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1fbe2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:44:28, skipping insertion in model container [2021-11-09 08:44:28,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:44:28" (3/3) ... [2021-11-09 08:44:28,158 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark16_conjunctive.i [2021-11-09 08:44:28,165 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:44:28,166 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-09 08:44:28,257 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:44:28,274 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:44:28,274 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-09 08:44:28,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:28,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-09 08:44:28,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:28,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-09 08:44:28,307 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:28,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-11-09 08:44:28,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:28,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512619054] [2021-11-09 08:44:28,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:28,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:28,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:28,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512619054] [2021-11-09 08:44:28,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512619054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:28,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:28,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:28,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914141963] [2021-11-09 08:44:28,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:28,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:28,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:28,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:28,688 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:28,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:28,829 INFO L93 Difference]: Finished difference Result 61 states and 70 transitions. [2021-11-09 08:44:28,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:28,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-09 08:44:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:28,842 INFO L225 Difference]: With dead ends: 61 [2021-11-09 08:44:28,842 INFO L226 Difference]: Without dead ends: 33 [2021-11-09 08:44:28,861 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:28,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-09 08:44:28,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2021-11-09 08:44:28,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:28,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-09 08:44:28,924 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2021-11-09 08:44:28,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:28,924 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-09 08:44:28,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:28,925 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-09 08:44:28,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-09 08:44:28,926 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:28,926 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-09 08:44:28,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:44:28,927 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:28,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:28,928 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2021-11-09 08:44:28,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:28,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940273355] [2021-11-09 08:44:28,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:28,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:28,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:28,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940273355] [2021-11-09 08:44:28,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940273355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:28,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:28,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:28,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616071568] [2021-11-09 08:44:28,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:28,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:28,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:28,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:28,985 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,081 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-11-09 08:44:29,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:29,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-09 08:44:29,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,085 INFO L225 Difference]: With dead ends: 32 [2021-11-09 08:44:29,085 INFO L226 Difference]: Without dead ends: 30 [2021-11-09 08:44:29,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-09 08:44:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2021-11-09 08:44:29,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-11-09 08:44:29,099 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 5 [2021-11-09 08:44:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,100 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-11-09 08:44:29,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-11-09 08:44:29,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:44:29,101 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,102 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:44:29,103 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:29,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-11-09 08:44:29,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:29,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439484186] [2021-11-09 08:44:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:29,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439484186] [2021-11-09 08:44:29,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439484186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:29,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:29,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:29,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252644405] [2021-11-09 08:44:29,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:29,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:29,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:29,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,167 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,189 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2021-11-09 08:44:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:29,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:44:29,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,191 INFO L225 Difference]: With dead ends: 27 [2021-11-09 08:44:29,191 INFO L226 Difference]: Without dead ends: 26 [2021-11-09 08:44:29,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-09 08:44:29,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-09 08:44:29,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2021-11-09 08:44:29,197 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 6 [2021-11-09 08:44:29,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,198 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2021-11-09 08:44:29,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,198 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2021-11-09 08:44:29,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:44:29,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,202 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 08:44:29,203 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:29,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:29,206 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2021-11-09 08:44:29,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:29,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807227594] [2021-11-09 08:44:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:29,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807227594] [2021-11-09 08:44:29,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807227594] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:29,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:29,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:29,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131771077] [2021-11-09 08:44:29,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:29,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:29,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,296 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,359 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-11-09 08:44:29,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:29,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:44:29,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,362 INFO L225 Difference]: With dead ends: 34 [2021-11-09 08:44:29,363 INFO L226 Difference]: Without dead ends: 27 [2021-11-09 08:44:29,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-09 08:44:29,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2021-11-09 08:44:29,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-09 08:44:29,369 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 6 [2021-11-09 08:44:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,369 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-09 08:44:29,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-09 08:44:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-09 08:44:29,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,371 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 08:44:29,371 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:29,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:29,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-11-09 08:44:29,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:29,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798950896] [2021-11-09 08:44:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:29,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:29,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798950896] [2021-11-09 08:44:29,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798950896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:29,411 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:29,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:29,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986636540] [2021-11-09 08:44:29,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:29,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:29,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:29,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,413 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,453 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2021-11-09 08:44:29,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:29,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-09 08:44:29,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,455 INFO L225 Difference]: With dead ends: 22 [2021-11-09 08:44:29,455 INFO L226 Difference]: Without dead ends: 21 [2021-11-09 08:44:29,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-09 08:44:29,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-09 08:44:29,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-11-09 08:44:29,460 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 7 [2021-11-09 08:44:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,460 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-11-09 08:44:29,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,461 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-11-09 08:44:29,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-09 08:44:29,461 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,461 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 08:44:29,462 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:29,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:29,463 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-11-09 08:44:29,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:29,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151211918] [2021-11-09 08:44:29,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:29,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:29,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151211918] [2021-11-09 08:44:29,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151211918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:29,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:29,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:44:29,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765684151] [2021-11-09 08:44:29,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 08:44:29,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 08:44:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,516 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,552 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2021-11-09 08:44:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 08:44:29,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-09 08:44:29,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,556 INFO L225 Difference]: With dead ends: 25 [2021-11-09 08:44:29,556 INFO L226 Difference]: Without dead ends: 24 [2021-11-09 08:44:29,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 08:44:29,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-09 08:44:29,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-09 08:44:29,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-11-09 08:44:29,561 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 8 [2021-11-09 08:44:29,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,562 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-11-09 08:44:29,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,562 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-11-09 08:44:29,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 08:44:29,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,563 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 08:44:29,568 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:29,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2021-11-09 08:44:29,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:29,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655225363] [2021-11-09 08:44:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:29,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655225363] [2021-11-09 08:44:29,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655225363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:29,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154323747] [2021-11-09 08:44:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:29,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:29,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:29,700 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:29,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 08:44:29,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:29,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:44:29,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:29,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:29,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154323747] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:29,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:29,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-09 08:44:29,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469137482] [2021-11-09 08:44:29,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:44:29,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:29,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:44:29,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:29,868 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:29,914 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-11-09 08:44:29,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:44:29,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-09 08:44:29,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:29,916 INFO L225 Difference]: With dead ends: 37 [2021-11-09 08:44:29,916 INFO L226 Difference]: Without dead ends: 36 [2021-11-09 08:44:29,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:29,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-09 08:44:29,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2021-11-09 08:44:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 25 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-09 08:44:29,922 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 10 [2021-11-09 08:44:29,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:29,923 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-09 08:44:29,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:29,923 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-09 08:44:29,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-09 08:44:29,924 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:29,924 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:44:29,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:30,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-09 08:44:30,152 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash 47508542, now seen corresponding path program 1 times [2021-11-09 08:44:30,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:30,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104643610] [2021-11-09 08:44:30,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:30,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:44:30,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:30,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104643610] [2021-11-09 08:44:30,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104643610] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:30,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:30,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:44:30,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454306154] [2021-11-09 08:44:30,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:44:30,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:30,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:44:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,246 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:30,271 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-11-09 08:44:30,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:44:30,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-09 08:44:30,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:30,272 INFO L225 Difference]: With dead ends: 26 [2021-11-09 08:44:30,272 INFO L226 Difference]: Without dead ends: 24 [2021-11-09 08:44:30,273 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-09 08:44:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-11-09 08:44:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-11-09 08:44:30,278 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 10 [2021-11-09 08:44:30,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:30,278 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-11-09 08:44:30,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,279 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-11-09 08:44:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 08:44:30,279 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:30,279 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:44:30,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 08:44:30,280 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:30,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:30,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2021-11-09 08:44:30,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:30,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173120891] [2021-11-09 08:44:30,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:30,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-09 08:44:30,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:30,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173120891] [2021-11-09 08:44:30,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173120891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:44:30,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:44:30,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 08:44:30,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649627953] [2021-11-09 08:44:30,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:44:30,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:30,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:44:30,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,335 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:30,360 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-11-09 08:44:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:44:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 08:44:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:30,362 INFO L225 Difference]: With dead ends: 24 [2021-11-09 08:44:30,362 INFO L226 Difference]: Without dead ends: 17 [2021-11-09 08:44:30,362 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-09 08:44:30,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-09 08:44:30,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-09 08:44:30,366 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2021-11-09 08:44:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:30,367 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-09 08:44:30,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-09 08:44:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 08:44:30,368 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:30,368 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-09 08:44:30,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 08:44:30,369 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:30,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2021-11-09 08:44:30,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:30,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621817487] [2021-11-09 08:44:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:30,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:30,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:30,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621817487] [2021-11-09 08:44:30,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621817487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:30,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161277072] [2021-11-09 08:44:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:30,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:30,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:30,412 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:30,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-09 08:44:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:30,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-09 08:44:30,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:30,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161277072] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:30,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:30,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-09 08:44:30,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728072839] [2021-11-09 08:44:30,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 08:44:30,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 08:44:30,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,576 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:30,603 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-09 08:44:30,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 08:44:30,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-09 08:44:30,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:30,607 INFO L225 Difference]: With dead ends: 21 [2021-11-09 08:44:30,607 INFO L226 Difference]: Without dead ends: 20 [2021-11-09 08:44:30,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 08:44:30,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-09 08:44:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-09 08:44:30,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-09 08:44:30,619 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 13 [2021-11-09 08:44:30,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:30,620 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-09 08:44:30,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:30,620 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-09 08:44:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-09 08:44:30,622 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:30,622 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-09 08:44:30,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:30,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-09 08:44:30,823 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:30,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:30,823 INFO L85 PathProgramCache]: Analyzing trace with hash 487275813, now seen corresponding path program 2 times [2021-11-09 08:44:30,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:30,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345327445] [2021-11-09 08:44:30,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:30,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:30,896 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:30,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:30,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345327445] [2021-11-09 08:44:30,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345327445] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:30,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570680368] [2021-11-09 08:44:30,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:30,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:30,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:30,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:30,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-09 08:44:30,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:30,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:30,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:44:30,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:31,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570680368] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:31,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:31,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-09 08:44:31,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474661924] [2021-11-09 08:44:31,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:44:31,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:44:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:44:31,038 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:31,056 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-11-09 08:44:31,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:44:31,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-09 08:44:31,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:31,058 INFO L225 Difference]: With dead ends: 24 [2021-11-09 08:44:31,058 INFO L226 Difference]: Without dead ends: 23 [2021-11-09 08:44:31,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:44:31,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-09 08:44:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-11-09 08:44:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-09 08:44:31,063 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 15 [2021-11-09 08:44:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:31,063 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-09 08:44:31,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,064 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-09 08:44:31,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-09 08:44:31,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:31,065 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1] [2021-11-09 08:44:31,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:31,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:31,280 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:31,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:31,280 INFO L85 PathProgramCache]: Analyzing trace with hash -555665681, now seen corresponding path program 2 times [2021-11-09 08:44:31,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:31,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696232937] [2021-11-09 08:44:31,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:31,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:31,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:31,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696232937] [2021-11-09 08:44:31,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696232937] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:31,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419158841] [2021-11-09 08:44:31,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:31,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:31,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:31,349 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:31,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-09 08:44:31,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:31,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:31,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 08:44:31,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:31,501 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:31,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419158841] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:31,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:31,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-09 08:44:31,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437517509] [2021-11-09 08:44:31,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 08:44:31,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:31,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 08:44:31,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:44:31,504 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:31,521 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2021-11-09 08:44:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:44:31,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-09 08:44:31,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:31,522 INFO L225 Difference]: With dead ends: 26 [2021-11-09 08:44:31,522 INFO L226 Difference]: Without dead ends: 25 [2021-11-09 08:44:31,523 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-09 08:44:31,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-09 08:44:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-11-09 08:44:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-11-09 08:44:31,538 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 18 [2021-11-09 08:44:31,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:31,538 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-11-09 08:44:31,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-11-09 08:44:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-09 08:44:31,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:31,540 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1] [2021-11-09 08:44:31,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-09 08:44:31,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:31,768 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:31,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:31,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1418773263, now seen corresponding path program 3 times [2021-11-09 08:44:31,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:31,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143271406] [2021-11-09 08:44:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:31,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:31,842 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:31,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:31,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143271406] [2021-11-09 08:44:31,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143271406] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:31,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919409523] [2021-11-09 08:44:31,847 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:31,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:31,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:31,860 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:31,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-09 08:44:31,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:44:31,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:31,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:44:31,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:32,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919409523] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:32,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:32,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-09 08:44:32,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114065949] [2021-11-09 08:44:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:44:32,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:44:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:44:32,050 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:32,079 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2021-11-09 08:44:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:44:32,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-09 08:44:32,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:32,081 INFO L225 Difference]: With dead ends: 29 [2021-11-09 08:44:32,081 INFO L226 Difference]: Without dead ends: 28 [2021-11-09 08:44:32,081 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:44:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-09 08:44:32,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-11-09 08:44:32,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.08) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-11-09 08:44:32,089 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 20 [2021-11-09 08:44:32,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:32,091 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-11-09 08:44:32,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,092 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-11-09 08:44:32,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-09 08:44:32,093 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:32,093 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1] [2021-11-09 08:44:32,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:32,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-09 08:44:32,320 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash 98931619, now seen corresponding path program 3 times [2021-11-09 08:44:32,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:32,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074484874] [2021-11-09 08:44:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:32,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:32,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:32,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074484874] [2021-11-09 08:44:32,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074484874] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:32,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003516648] [2021-11-09 08:44:32,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:32,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:32,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:32,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:32,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-09 08:44:32,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-09 08:44:32,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:32,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:44:32,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:32,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003516648] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:32,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:32,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-09 08:44:32,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548953104] [2021-11-09 08:44:32,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 08:44:32,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:32,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:44:32,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:44:32,592 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:32,617 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2021-11-09 08:44:32,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 08:44:32,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-09 08:44:32,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:32,619 INFO L225 Difference]: With dead ends: 31 [2021-11-09 08:44:32,619 INFO L226 Difference]: Without dead ends: 30 [2021-11-09 08:44:32,619 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:44:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-09 08:44:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-09 08:44:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-11-09 08:44:32,625 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 23 [2021-11-09 08:44:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:32,625 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-11-09 08:44:32,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-11-09 08:44:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-09 08:44:32,627 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:32,627 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-11-09 08:44:32,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:32,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-09 08:44:32,840 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:32,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:32,840 INFO L85 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 4 times [2021-11-09 08:44:32,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:32,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954471597] [2021-11-09 08:44:32,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:32,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:32,922 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:32,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:32,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954471597] [2021-11-09 08:44:32,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954471597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:32,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141734237] [2021-11-09 08:44:32,923 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:32,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:32,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:32,924 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:32,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-09 08:44:33,011 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:33,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:33,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:44:33,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:33,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141734237] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:33,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:33,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 08:44:33,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742475984] [2021-11-09 08:44:33,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:44:33,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:33,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:44:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:44:33,124 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:33,157 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2021-11-09 08:44:33,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:44:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-09 08:44:33,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:33,160 INFO L225 Difference]: With dead ends: 34 [2021-11-09 08:44:33,160 INFO L226 Difference]: Without dead ends: 33 [2021-11-09 08:44:33,163 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:44:33,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-09 08:44:33,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-11-09 08:44:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 31 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2021-11-09 08:44:33,177 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 25 [2021-11-09 08:44:33,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:33,177 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2021-11-09 08:44:33,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2021-11-09 08:44:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-09 08:44:33,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:33,180 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2021-11-09 08:44:33,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:33,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-09 08:44:33,384 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:33,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:33,385 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 4 times [2021-11-09 08:44:33,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:33,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894770348] [2021-11-09 08:44:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:33,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:33,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:33,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894770348] [2021-11-09 08:44:33,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894770348] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:33,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931542986] [2021-11-09 08:44:33,457 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:33,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:33,472 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:33,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-09 08:44:33,574 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:33,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:33,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-09 08:44:33,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:33,676 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:33,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931542986] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:33,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:33,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-09 08:44:33,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20551086] [2021-11-09 08:44:33,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:44:33,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:33,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:44:33,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:44:33,679 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:33,704 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2021-11-09 08:44:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-09 08:44:33,704 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-09 08:44:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:33,707 INFO L225 Difference]: With dead ends: 36 [2021-11-09 08:44:33,707 INFO L226 Difference]: Without dead ends: 35 [2021-11-09 08:44:33,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-09 08:44:33,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-11-09 08:44:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-11-09 08:44:33,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 34 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-11-09 08:44:33,726 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 28 [2021-11-09 08:44:33,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:33,728 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2021-11-09 08:44:33,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-11-09 08:44:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-09 08:44:33,731 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:33,731 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1] [2021-11-09 08:44:33,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:33,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-09 08:44:33,950 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash -977343119, now seen corresponding path program 5 times [2021-11-09 08:44:33,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:33,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079345950] [2021-11-09 08:44:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:33,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:34,047 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:34,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:34,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079345950] [2021-11-09 08:44:34,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079345950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:34,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460724345] [2021-11-09 08:44:34,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:34,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:34,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:34,050 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:34,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-09 08:44:34,174 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:44:34,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:34,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:44:34,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:34,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460724345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:34,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:34,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-09 08:44:34,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455864036] [2021-11-09 08:44:34,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:44:34,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:34,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:44:34,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:44:34,276 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:34,312 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-11-09 08:44:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:44:34,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-09 08:44:34,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:34,315 INFO L225 Difference]: With dead ends: 39 [2021-11-09 08:44:34,315 INFO L226 Difference]: Without dead ends: 38 [2021-11-09 08:44:34,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:44:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-09 08:44:34,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2021-11-09 08:44:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 36 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2021-11-09 08:44:34,323 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 30 [2021-11-09 08:44:34,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:34,323 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2021-11-09 08:44:34,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,324 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2021-11-09 08:44:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-09 08:44:34,327 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:34,328 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1] [2021-11-09 08:44:34,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:34,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-09 08:44:34,537 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:34,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:34,538 INFO L85 PathProgramCache]: Analyzing trace with hash -445508829, now seen corresponding path program 5 times [2021-11-09 08:44:34,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:34,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201181923] [2021-11-09 08:44:34,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:34,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:34,615 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:34,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:34,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201181923] [2021-11-09 08:44:34,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201181923] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:34,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102089127] [2021-11-09 08:44:34,616 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:34,616 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:34,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:34,618 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:34,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-09 08:44:34,729 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-09 08:44:34,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:34,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-09 08:44:34,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:34,853 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:34,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102089127] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:34,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:34,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-09 08:44:34,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170962982] [2021-11-09 08:44:34,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 08:44:34,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:34,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 08:44:34,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:44:34,856 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:34,880 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions. [2021-11-09 08:44:34,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 08:44:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-09 08:44:34,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:34,881 INFO L225 Difference]: With dead ends: 41 [2021-11-09 08:44:34,881 INFO L226 Difference]: Without dead ends: 40 [2021-11-09 08:44:34,882 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-09 08:44:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-09 08:44:34,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-09 08:44:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-11-09 08:44:34,885 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 33 [2021-11-09 08:44:34,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:34,886 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-11-09 08:44:34,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:34,886 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-11-09 08:44:34,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-09 08:44:34,887 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:34,887 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-11-09 08:44:34,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:35,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-09 08:44:35,107 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:35,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1362746405, now seen corresponding path program 6 times [2021-11-09 08:44:35,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:35,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779634481] [2021-11-09 08:44:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:35,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:35,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:35,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779634481] [2021-11-09 08:44:35,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779634481] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:35,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882749097] [2021-11-09 08:44:35,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:44:35,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:35,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:35,214 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:35,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-09 08:44:35,339 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-09 08:44:35,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:35,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:44:35,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:35,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882749097] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:35,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:35,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-09 08:44:35,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716064833] [2021-11-09 08:44:35,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:44:35,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:35,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:44:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:44:35,472 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:35,500 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-11-09 08:44:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:44:35,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-09 08:44:35,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:35,501 INFO L225 Difference]: With dead ends: 44 [2021-11-09 08:44:35,501 INFO L226 Difference]: Without dead ends: 43 [2021-11-09 08:44:35,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:44:35,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-09 08:44:35,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2021-11-09 08:44:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.05) internal successors, (42), 41 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:35,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-11-09 08:44:35,529 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 35 [2021-11-09 08:44:35,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:35,529 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-11-09 08:44:35,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:35,530 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-11-09 08:44:35,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-09 08:44:35,530 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:35,531 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1] [2021-11-09 08:44:35,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:35,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:35,754 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:35,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:35,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1547319279, now seen corresponding path program 6 times [2021-11-09 08:44:35,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:35,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956951590] [2021-11-09 08:44:35,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:35,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:35,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:35,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956951590] [2021-11-09 08:44:35,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956951590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:35,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815514291] [2021-11-09 08:44:35,858 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:44:35,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:35,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:35,863 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:35,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-09 08:44:36,027 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-09 08:44:36,027 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:36,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 08:44:36,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:36,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815514291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:36,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:36,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-09 08:44:36,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641304754] [2021-11-09 08:44:36,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 08:44:36,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:36,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 08:44:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:44:36,193 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:36,223 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-11-09 08:44:36,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 08:44:36,224 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-09 08:44:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:36,225 INFO L225 Difference]: With dead ends: 46 [2021-11-09 08:44:36,225 INFO L226 Difference]: Without dead ends: 45 [2021-11-09 08:44:36,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-09 08:44:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-09 08:44:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-09 08:44:36,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 44 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-11-09 08:44:36,231 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 38 [2021-11-09 08:44:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:36,231 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-11-09 08:44:36,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-11-09 08:44:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-09 08:44:36,232 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:36,233 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1] [2021-11-09 08:44:36,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-09 08:44:36,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:36,456 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:36,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:36,456 INFO L85 PathProgramCache]: Analyzing trace with hash 915144177, now seen corresponding path program 7 times [2021-11-09 08:44:36,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:36,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871658790] [2021-11-09 08:44:36,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:36,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:36,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:36,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871658790] [2021-11-09 08:44:36,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871658790] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:36,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824101662] [2021-11-09 08:44:36,554 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:44:36,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:36,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:36,555 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:36,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-09 08:44:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:36,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:44:36,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:36,826 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:36,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824101662] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:36,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:36,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-09 08:44:36,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044441021] [2021-11-09 08:44:36,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:44:36,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:36,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:44:36,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:44:36,829 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:36,866 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-11-09 08:44:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:44:36,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-09 08:44:36,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:36,868 INFO L225 Difference]: With dead ends: 49 [2021-11-09 08:44:36,868 INFO L226 Difference]: Without dead ends: 48 [2021-11-09 08:44:36,870 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:44:36,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-09 08:44:36,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2021-11-09 08:44:36,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-11-09 08:44:36,878 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 40 [2021-11-09 08:44:36,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:36,878 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-11-09 08:44:36,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:36,879 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-11-09 08:44:36,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-09 08:44:36,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:36,880 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1] [2021-11-09 08:44:36,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:37,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:37,093 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:37,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:37,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1392168285, now seen corresponding path program 7 times [2021-11-09 08:44:37,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:37,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131771686] [2021-11-09 08:44:37,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:37,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:37,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:37,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131771686] [2021-11-09 08:44:37,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131771686] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:37,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538050449] [2021-11-09 08:44:37,181 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:44:37,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:37,194 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:37,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-09 08:44:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:37,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-09 08:44:37,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:37,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538050449] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:37,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:37,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-09 08:44:37,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697770258] [2021-11-09 08:44:37,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 08:44:37,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:37,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 08:44:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:44:37,498 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:37,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:37,527 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-11-09 08:44:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-09 08:44:37,530 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-09 08:44:37,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:37,531 INFO L225 Difference]: With dead ends: 51 [2021-11-09 08:44:37,531 INFO L226 Difference]: Without dead ends: 50 [2021-11-09 08:44:37,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-09 08:44:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-09 08:44:37,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-09 08:44:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-09 08:44:37,535 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 43 [2021-11-09 08:44:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:37,535 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-09 08:44:37,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-09 08:44:37,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-09 08:44:37,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:37,537 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1] [2021-11-09 08:44:37,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:37,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-09 08:44:37,752 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:37,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:37,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2138891355, now seen corresponding path program 8 times [2021-11-09 08:44:37,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:37,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681395571] [2021-11-09 08:44:37,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:37,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:37,853 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:37,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:37,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681395571] [2021-11-09 08:44:37,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681395571] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:37,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208698747] [2021-11-09 08:44:37,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:37,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:37,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:37,854 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:37,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-09 08:44:38,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:38,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:38,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:44:38,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:38,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208698747] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:38,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:38,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-09 08:44:38,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265262472] [2021-11-09 08:44:38,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 08:44:38,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:38,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:44:38,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:44:38,206 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:38,244 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2021-11-09 08:44:38,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:44:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-09 08:44:38,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:38,245 INFO L225 Difference]: With dead ends: 54 [2021-11-09 08:44:38,245 INFO L226 Difference]: Without dead ends: 53 [2021-11-09 08:44:38,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:44:38,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-09 08:44:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2021-11-09 08:44:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 50 states have (on average 1.04) internal successors, (52), 51 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 52 transitions. [2021-11-09 08:44:38,249 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 52 transitions. Word has length 45 [2021-11-09 08:44:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:38,250 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 52 transitions. [2021-11-09 08:44:38,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 52 transitions. [2021-11-09 08:44:38,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-09 08:44:38,251 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:38,251 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1] [2021-11-09 08:44:38,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:38,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-11-09 08:44:38,467 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash 422496367, now seen corresponding path program 8 times [2021-11-09 08:44:38,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:38,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443217214] [2021-11-09 08:44:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:38,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:38,568 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:38,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:38,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443217214] [2021-11-09 08:44:38,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443217214] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:38,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173691363] [2021-11-09 08:44:38,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:38,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:38,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:38,571 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:38,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-09 08:44:38,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:38,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:38,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-09 08:44:38,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:38,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173691363] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:38,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:38,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-09 08:44:38,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200336266] [2021-11-09 08:44:38,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 08:44:38,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:38,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 08:44:38,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:44:38,924 INFO L87 Difference]: Start difference. First operand 52 states and 52 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:38,967 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-11-09 08:44:38,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-09 08:44:38,967 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-09 08:44:38,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:38,968 INFO L225 Difference]: With dead ends: 56 [2021-11-09 08:44:38,969 INFO L226 Difference]: Without dead ends: 55 [2021-11-09 08:44:38,969 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-09 08:44:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-09 08:44:38,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-11-09 08:44:38,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 54 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-11-09 08:44:38,975 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 48 [2021-11-09 08:44:38,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:38,975 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-11-09 08:44:38,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:38,976 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-11-09 08:44:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-09 08:44:38,977 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:38,977 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1] [2021-11-09 08:44:39,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:39,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-09 08:44:39,191 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:39,192 INFO L85 PathProgramCache]: Analyzing trace with hash -2002882959, now seen corresponding path program 9 times [2021-11-09 08:44:39,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:39,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345731199] [2021-11-09 08:44:39,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:39,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:39,324 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:39,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:39,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345731199] [2021-11-09 08:44:39,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345731199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:39,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367365554] [2021-11-09 08:44:39,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:39,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:39,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:39,326 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:39,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-09 08:44:39,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-09 08:44:39,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:39,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 08:44:39,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:39,771 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:39,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367365554] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:39,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:39,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-09 08:44:39,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348078462] [2021-11-09 08:44:39,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:44:39,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:39,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:44:39,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:44:39,774 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:39,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:39,811 INFO L93 Difference]: Finished difference Result 59 states and 59 transitions. [2021-11-09 08:44:39,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 08:44:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-09 08:44:39,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:39,812 INFO L225 Difference]: With dead ends: 59 [2021-11-09 08:44:39,812 INFO L226 Difference]: Without dead ends: 58 [2021-11-09 08:44:39,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:44:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-11-09 08:44:39,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2021-11-09 08:44:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 56 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:39,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-11-09 08:44:39,817 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 50 [2021-11-09 08:44:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:39,818 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-11-09 08:44:39,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-11-09 08:44:39,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-09 08:44:39,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:39,819 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 1, 1, 1, 1] [2021-11-09 08:44:39,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:40,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:40,035 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:40,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:40,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2094461475, now seen corresponding path program 9 times [2021-11-09 08:44:40,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:40,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838352932] [2021-11-09 08:44:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:40,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:40,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:40,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838352932] [2021-11-09 08:44:40,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838352932] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:40,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257279483] [2021-11-09 08:44:40,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:40,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:40,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:40,156 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:40,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-09 08:44:40,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-09 08:44:40,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:40,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-09 08:44:40,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:40,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257279483] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:40,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:40,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-09 08:44:40,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012046411] [2021-11-09 08:44:40,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 08:44:40,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 08:44:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:44:40,570 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:40,606 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions. [2021-11-09 08:44:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 08:44:40,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-11-09 08:44:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:40,608 INFO L225 Difference]: With dead ends: 61 [2021-11-09 08:44:40,608 INFO L226 Difference]: Without dead ends: 60 [2021-11-09 08:44:40,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-09 08:44:40,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-09 08:44:40,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2021-11-09 08:44:40,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 59 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:40,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2021-11-09 08:44:40,612 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 53 [2021-11-09 08:44:40,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:40,612 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2021-11-09 08:44:40,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 12 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:40,612 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2021-11-09 08:44:40,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-09 08:44:40,613 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:40,613 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-11-09 08:44:40,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:40,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-09 08:44:40,831 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:40,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:40,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 10 times [2021-11-09 08:44:40,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:40,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089284586] [2021-11-09 08:44:40,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:40,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:40,965 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:40,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:40,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089284586] [2021-11-09 08:44:40,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089284586] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:40,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430828501] [2021-11-09 08:44:40,966 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:40,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:40,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:40,971 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:40,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-09 08:44:41,212 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:41,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:41,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:44:41,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:41,444 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:41,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430828501] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:41,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:41,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-09 08:44:41,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560587924] [2021-11-09 08:44:41,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 08:44:41,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:41,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 08:44:41,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:44:41,447 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:41,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:41,497 INFO L93 Difference]: Finished difference Result 64 states and 64 transitions. [2021-11-09 08:44:41,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:44:41,497 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-09 08:44:41,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:41,498 INFO L225 Difference]: With dead ends: 64 [2021-11-09 08:44:41,498 INFO L226 Difference]: Without dead ends: 63 [2021-11-09 08:44:41,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:44:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-09 08:44:41,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2021-11-09 08:44:41,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 61 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:41,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 62 transitions. [2021-11-09 08:44:41,503 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 62 transitions. Word has length 55 [2021-11-09 08:44:41,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:41,503 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 62 transitions. [2021-11-09 08:44:41,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:41,504 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 62 transitions. [2021-11-09 08:44:41,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-09 08:44:41,504 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:41,504 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2021-11-09 08:44:41,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:41,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:41,719 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:41,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:41,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 10 times [2021-11-09 08:44:41,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:41,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659682544] [2021-11-09 08:44:41,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:41,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:41,840 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:41,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:41,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659682544] [2021-11-09 08:44:41,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659682544] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:41,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089495701] [2021-11-09 08:44:41,841 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:41,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:41,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:41,842 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:41,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-09 08:44:42,079 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:42,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:42,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-09 08:44:42,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:42,251 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:42,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089495701] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:42,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:42,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-09 08:44:42,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876710801] [2021-11-09 08:44:42,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 08:44:42,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:42,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 08:44:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:44:42,253 INFO L87 Difference]: Start difference. First operand 62 states and 62 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:42,288 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2021-11-09 08:44:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 08:44:42,289 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-09 08:44:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:42,290 INFO L225 Difference]: With dead ends: 66 [2021-11-09 08:44:42,290 INFO L226 Difference]: Without dead ends: 65 [2021-11-09 08:44:42,290 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-09 08:44:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-11-09 08:44:42,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-11-09 08:44:42,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 64 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:42,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 65 transitions. [2021-11-09 08:44:42,294 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 65 transitions. Word has length 58 [2021-11-09 08:44:42,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:42,295 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 65 transitions. [2021-11-09 08:44:42,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:42,295 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 65 transitions. [2021-11-09 08:44:42,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-09 08:44:42,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:42,296 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1] [2021-11-09 08:44:42,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:42,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-09 08:44:42,511 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:42,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:42,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1824407281, now seen corresponding path program 11 times [2021-11-09 08:44:42,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:42,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273277864] [2021-11-09 08:44:42,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:42,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:42,643 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:42,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:42,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273277864] [2021-11-09 08:44:42,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273277864] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:42,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269883228] [2021-11-09 08:44:42,644 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:42,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:42,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:42,655 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:42,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-09 08:44:42,914 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-09 08:44:42,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:42,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-09 08:44:42,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:43,143 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:43,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269883228] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:43,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:43,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-09 08:44:43,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008357854] [2021-11-09 08:44:43,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 08:44:43,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:43,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 08:44:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:44:43,146 INFO L87 Difference]: Start difference. First operand 65 states and 65 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:43,196 INFO L93 Difference]: Finished difference Result 69 states and 69 transitions. [2021-11-09 08:44:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:44:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-09 08:44:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:43,198 INFO L225 Difference]: With dead ends: 69 [2021-11-09 08:44:43,198 INFO L226 Difference]: Without dead ends: 68 [2021-11-09 08:44:43,200 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:44:43,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-09 08:44:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2021-11-09 08:44:43,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 65 states have (on average 1.0307692307692307) internal successors, (67), 66 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:43,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 67 transitions. [2021-11-09 08:44:43,206 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 67 transitions. Word has length 60 [2021-11-09 08:44:43,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:43,206 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 67 transitions. [2021-11-09 08:44:43,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:43,207 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 67 transitions. [2021-11-09 08:44:43,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-09 08:44:43,210 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:43,210 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 1, 1, 1, 1] [2021-11-09 08:44:43,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-09 08:44:43,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-09 08:44:43,415 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1893772893, now seen corresponding path program 11 times [2021-11-09 08:44:43,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:43,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588022872] [2021-11-09 08:44:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:43,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:43,556 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:43,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:43,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588022872] [2021-11-09 08:44:43,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588022872] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:43,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635189540] [2021-11-09 08:44:43,557 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:43,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:43,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:43,559 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:43,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-09 08:44:43,829 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-09 08:44:43,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:43,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-09 08:44:43,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:44,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635189540] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:44,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:44,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-09 08:44:44,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752348801] [2021-11-09 08:44:44,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-09 08:44:44,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:44,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-09 08:44:44,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:44:44,054 INFO L87 Difference]: Start difference. First operand 67 states and 67 transitions. Second operand has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:44,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:44,096 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-11-09 08:44:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 08:44:44,097 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-09 08:44:44,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:44,098 INFO L225 Difference]: With dead ends: 71 [2021-11-09 08:44:44,098 INFO L226 Difference]: Without dead ends: 70 [2021-11-09 08:44:44,098 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-09 08:44:44,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-09 08:44:44,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2021-11-09 08:44:44,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 69 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:44,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 70 transitions. [2021-11-09 08:44:44,101 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 70 transitions. Word has length 63 [2021-11-09 08:44:44,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:44,102 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 70 transitions. [2021-11-09 08:44:44,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.846153846153846) internal successors, (63), 14 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:44,102 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 70 transitions. [2021-11-09 08:44:44,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-09 08:44:44,102 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:44,102 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1] [2021-11-09 08:44:44,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-11-09 08:44:44,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:44,315 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1150384805, now seen corresponding path program 12 times [2021-11-09 08:44:44,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:44,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952453241] [2021-11-09 08:44:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:44,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:44,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:44,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952453241] [2021-11-09 08:44:44,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952453241] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:44,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317500352] [2021-11-09 08:44:44,438 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:44:44,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:44,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:44,439 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:44,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-09 08:44:44,745 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-09 08:44:44,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:44,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 08:44:44,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:44,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317500352] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:44,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:44,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-09 08:44:44,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257519981] [2021-11-09 08:44:44,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 08:44:44,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:44,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 08:44:44,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:44:44,957 INFO L87 Difference]: Start difference. First operand 70 states and 70 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:44,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:44,999 INFO L93 Difference]: Finished difference Result 74 states and 74 transitions. [2021-11-09 08:44:44,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:44:45,000 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-09 08:44:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:45,001 INFO L225 Difference]: With dead ends: 74 [2021-11-09 08:44:45,001 INFO L226 Difference]: Without dead ends: 73 [2021-11-09 08:44:45,001 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:44:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-09 08:44:45,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2021-11-09 08:44:45,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 70 states have (on average 1.0285714285714285) internal successors, (72), 71 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:45,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 72 transitions. [2021-11-09 08:44:45,005 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 72 transitions. Word has length 65 [2021-11-09 08:44:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:45,006 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 72 transitions. [2021-11-09 08:44:45,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 72 transitions. [2021-11-09 08:44:45,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-09 08:44:45,007 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:45,007 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 1, 1, 1, 1] [2021-11-09 08:44:45,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:45,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-09 08:44:45,229 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1569720687, now seen corresponding path program 12 times [2021-11-09 08:44:45,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:45,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763676209] [2021-11-09 08:44:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:45,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:45,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:45,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763676209] [2021-11-09 08:44:45,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763676209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:45,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168742123] [2021-11-09 08:44:45,375 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:44:45,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:45,376 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:45,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-09 08:44:45,676 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-09 08:44:45,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:45,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-09 08:44:45,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:45,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168742123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:45,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:45,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-09 08:44:45,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839797629] [2021-11-09 08:44:45,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 08:44:45,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 08:44:45,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:44:45,894 INFO L87 Difference]: Start difference. First operand 72 states and 72 transitions. Second operand has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:45,935 INFO L93 Difference]: Finished difference Result 76 states and 76 transitions. [2021-11-09 08:44:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 08:44:45,936 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-11-09 08:44:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:45,936 INFO L225 Difference]: With dead ends: 76 [2021-11-09 08:44:45,936 INFO L226 Difference]: Without dead ends: 75 [2021-11-09 08:44:45,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-09 08:44:45,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-09 08:44:45,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-09 08:44:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 74 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2021-11-09 08:44:45,942 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 68 [2021-11-09 08:44:45,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:45,942 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2021-11-09 08:44:45,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.857142857142857) internal successors, (68), 15 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2021-11-09 08:44:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-09 08:44:45,943 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:45,943 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1] [2021-11-09 08:44:45,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:46,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-09 08:44:46,159 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:46,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 968060785, now seen corresponding path program 13 times [2021-11-09 08:44:46,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:46,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028778950] [2021-11-09 08:44:46,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:46,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:46,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:46,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028778950] [2021-11-09 08:44:46,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028778950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:46,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682535469] [2021-11-09 08:44:46,312 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:44:46,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:46,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:46,316 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:46,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-09 08:44:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:46,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-09 08:44:46,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:46,910 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:46,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682535469] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:46,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:46,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-09 08:44:46,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184395276] [2021-11-09 08:44:46,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:44:46,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:46,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:44:46,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:44:46,913 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:46,952 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-11-09 08:44:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:44:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-09 08:44:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:46,954 INFO L225 Difference]: With dead ends: 79 [2021-11-09 08:44:46,954 INFO L226 Difference]: Without dead ends: 78 [2021-11-09 08:44:46,955 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:44:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-09 08:44:46,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 77. [2021-11-09 08:44:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 76 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 77 transitions. [2021-11-09 08:44:46,960 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 77 transitions. Word has length 70 [2021-11-09 08:44:46,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:46,960 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 77 transitions. [2021-11-09 08:44:46,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 77 transitions. [2021-11-09 08:44:46,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-09 08:44:46,961 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:46,961 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1] [2021-11-09 08:44:47,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:47,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:47,187 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:47,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:47,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1206496989, now seen corresponding path program 13 times [2021-11-09 08:44:47,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:47,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834504341] [2021-11-09 08:44:47,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:47,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:47,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:47,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834504341] [2021-11-09 08:44:47,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834504341] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:47,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810747094] [2021-11-09 08:44:47,368 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:44:47,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:47,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:47,369 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:47,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-09 08:44:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:47,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-09 08:44:47,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:48,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810747094] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:48,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:48,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-09 08:44:48,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907100504] [2021-11-09 08:44:48,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-09 08:44:48,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:48,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-09 08:44:48,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:44:48,037 INFO L87 Difference]: Start difference. First operand 77 states and 77 transitions. Second operand has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:48,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:48,076 INFO L93 Difference]: Finished difference Result 81 states and 81 transitions. [2021-11-09 08:44:48,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-09 08:44:48,076 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-09 08:44:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:48,077 INFO L225 Difference]: With dead ends: 81 [2021-11-09 08:44:48,077 INFO L226 Difference]: Without dead ends: 80 [2021-11-09 08:44:48,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-09 08:44:48,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-11-09 08:44:48,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-11-09 08:44:48,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 79 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:48,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2021-11-09 08:44:48,082 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 73 [2021-11-09 08:44:48,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:48,083 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2021-11-09 08:44:48,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.866666666666666) internal successors, (73), 16 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:48,083 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2021-11-09 08:44:48,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-09 08:44:48,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:48,084 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-11-09 08:44:48,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:48,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:48,303 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:48,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:48,304 INFO L85 PathProgramCache]: Analyzing trace with hash 197564965, now seen corresponding path program 14 times [2021-11-09 08:44:48,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:48,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469011699] [2021-11-09 08:44:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:48,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:48,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:48,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469011699] [2021-11-09 08:44:48,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469011699] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:48,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281440162] [2021-11-09 08:44:48,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:48,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:48,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:48,481 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:48,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-09 08:44:48,984 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:48,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:48,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:44:48,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:49,287 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:49,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281440162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:49,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:49,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-09 08:44:49,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298918381] [2021-11-09 08:44:49,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-09 08:44:49,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:49,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-09 08:44:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:44:49,291 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:49,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:49,342 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-11-09 08:44:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:44:49,343 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-09 08:44:49,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:49,344 INFO L225 Difference]: With dead ends: 84 [2021-11-09 08:44:49,344 INFO L226 Difference]: Without dead ends: 83 [2021-11-09 08:44:49,345 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:44:49,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-09 08:44:49,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-11-09 08:44:49,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.025) internal successors, (82), 81 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2021-11-09 08:44:49,349 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 75 [2021-11-09 08:44:49,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:49,350 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2021-11-09 08:44:49,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:49,350 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2021-11-09 08:44:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-09 08:44:49,351 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:49,351 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1] [2021-11-09 08:44:49,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:49,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-09 08:44:49,572 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:49,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:49,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1552726511, now seen corresponding path program 14 times [2021-11-09 08:44:49,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:49,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773821636] [2021-11-09 08:44:49,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:49,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:49,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:49,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773821636] [2021-11-09 08:44:49,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773821636] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:49,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397511342] [2021-11-09 08:44:49,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:44:49,765 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:49,767 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:49,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-09 08:44:50,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:44:50,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:50,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 08:44:50,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:50,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397511342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:50,419 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:50,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-09 08:44:50,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333494774] [2021-11-09 08:44:50,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-09 08:44:50,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-09 08:44:50,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:44:50,422 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:50,462 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2021-11-09 08:44:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 08:44:50,462 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-09 08:44:50,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:50,463 INFO L225 Difference]: With dead ends: 86 [2021-11-09 08:44:50,463 INFO L226 Difference]: Without dead ends: 85 [2021-11-09 08:44:50,464 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-09 08:44:50,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-09 08:44:50,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-09 08:44:50,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 84 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:50,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2021-11-09 08:44:50,468 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 78 [2021-11-09 08:44:50,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:50,468 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2021-11-09 08:44:50,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.875) internal successors, (78), 17 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2021-11-09 08:44:50,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 08:44:50,470 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:50,470 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1] [2021-11-09 08:44:50,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:50,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-09 08:44:50,695 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:50,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:50,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1816526833, now seen corresponding path program 15 times [2021-11-09 08:44:50,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:50,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675009606] [2021-11-09 08:44:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:50,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:50,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:50,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675009606] [2021-11-09 08:44:50,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675009606] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:50,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383004143] [2021-11-09 08:44:50,890 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:50,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:50,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:50,890 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:50,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-09 08:44:51,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-09 08:44:51,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:51,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 08:44:51,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:51,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383004143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:51,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:51,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-09 08:44:51,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931351883] [2021-11-09 08:44:51,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 08:44:51,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:51,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 08:44:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:44:51,740 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:51,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:51,789 INFO L93 Difference]: Finished difference Result 89 states and 89 transitions. [2021-11-09 08:44:51,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:44:51,790 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-09 08:44:51,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:51,790 INFO L225 Difference]: With dead ends: 89 [2021-11-09 08:44:51,791 INFO L226 Difference]: Without dead ends: 88 [2021-11-09 08:44:51,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:44:51,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-09 08:44:51,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 87. [2021-11-09 08:44:51,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.0235294117647058) internal successors, (87), 86 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:51,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 87 transitions. [2021-11-09 08:44:51,793 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 87 transitions. Word has length 80 [2021-11-09 08:44:51,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:51,793 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 87 transitions. [2021-11-09 08:44:51,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:51,794 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 87 transitions. [2021-11-09 08:44:51,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 08:44:51,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:51,794 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1] [2021-11-09 08:44:51,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:51,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-09 08:44:51,996 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:51,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:51,997 INFO L85 PathProgramCache]: Analyzing trace with hash -436997981, now seen corresponding path program 15 times [2021-11-09 08:44:51,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:51,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052715807] [2021-11-09 08:44:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:51,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:52,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:52,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052715807] [2021-11-09 08:44:52,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052715807] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:52,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889185894] [2021-11-09 08:44:52,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:44:52,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:52,180 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:52,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-09 08:44:52,619 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-09 08:44:52,620 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:52,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-09 08:44:52,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:52,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889185894] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:52,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:52,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-09 08:44:52,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267382027] [2021-11-09 08:44:52,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-09 08:44:52,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:52,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-09 08:44:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:44:52,914 INFO L87 Difference]: Start difference. First operand 87 states and 87 transitions. Second operand has 18 states, 17 states have (on average 4.882352941176471) internal successors, (83), 18 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:52,970 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2021-11-09 08:44:52,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 08:44:52,971 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.882352941176471) internal successors, (83), 18 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 08:44:52,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:52,972 INFO L225 Difference]: With dead ends: 91 [2021-11-09 08:44:52,972 INFO L226 Difference]: Without dead ends: 90 [2021-11-09 08:44:52,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-09 08:44:52,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-09 08:44:52,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-09 08:44:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 88 states have (on average 1.0227272727272727) internal successors, (90), 89 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2021-11-09 08:44:52,977 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 83 [2021-11-09 08:44:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:52,977 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2021-11-09 08:44:52,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.882352941176471) internal successors, (83), 18 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2021-11-09 08:44:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-09 08:44:52,979 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:52,979 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1] [2021-11-09 08:44:53,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-11-09 08:44:53,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-09 08:44:53,199 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:53,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:53,200 INFO L85 PathProgramCache]: Analyzing trace with hash 951736741, now seen corresponding path program 16 times [2021-11-09 08:44:53,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:53,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898909143] [2021-11-09 08:44:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:53,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:53,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:53,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898909143] [2021-11-09 08:44:53,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898909143] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:53,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307866397] [2021-11-09 08:44:53,439 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:53,440 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:53,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:53,457 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:53,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-09 08:44:53,985 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:53,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:53,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 08:44:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:54,242 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:54,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307866397] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:54,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:54,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-09 08:44:54,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595824622] [2021-11-09 08:44:54,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:44:54,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:44:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:44:54,244 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:54,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:54,298 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2021-11-09 08:44:54,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 08:44:54,299 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-09 08:44:54,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:54,300 INFO L225 Difference]: With dead ends: 94 [2021-11-09 08:44:54,300 INFO L226 Difference]: Without dead ends: 93 [2021-11-09 08:44:54,303 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:44:54,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-09 08:44:54,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-11-09 08:44:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 91 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2021-11-09 08:44:54,308 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 85 [2021-11-09 08:44:54,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:54,308 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2021-11-09 08:44:54,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2021-11-09 08:44:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-09 08:44:54,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:54,310 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 1, 1, 1, 1] [2021-11-09 08:44:54,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:54,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-09 08:44:54,523 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:54,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash 2110179951, now seen corresponding path program 16 times [2021-11-09 08:44:54,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:54,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73691839] [2021-11-09 08:44:54,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:54,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:54,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:54,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73691839] [2021-11-09 08:44:54,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73691839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:54,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676369168] [2021-11-09 08:44:54,738 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:44:54,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:54,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:54,739 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:54,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-09 08:44:55,385 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:44:55,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:55,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-09 08:44:55,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:55,690 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:55,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676369168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:55,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:55,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-09 08:44:55,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514522816] [2021-11-09 08:44:55,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 08:44:55,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:55,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 08:44:55,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:44:55,693 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:55,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:55,746 INFO L93 Difference]: Finished difference Result 96 states and 96 transitions. [2021-11-09 08:44:55,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 08:44:55,747 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-09 08:44:55,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:55,748 INFO L225 Difference]: With dead ends: 96 [2021-11-09 08:44:55,748 INFO L226 Difference]: Without dead ends: 95 [2021-11-09 08:44:55,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-09 08:44:55,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-11-09 08:44:55,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-09 08:44:55,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 93 states have (on average 1.021505376344086) internal successors, (95), 94 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 95 transitions. [2021-11-09 08:44:55,752 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 95 transitions. Word has length 88 [2021-11-09 08:44:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:55,753 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 95 transitions. [2021-11-09 08:44:55,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.888888888888889) internal successors, (88), 19 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 95 transitions. [2021-11-09 08:44:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-09 08:44:55,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:55,754 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1] [2021-11-09 08:44:55,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:55,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-09 08:44:55,979 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:55,980 INFO L85 PathProgramCache]: Analyzing trace with hash 658370673, now seen corresponding path program 17 times [2021-11-09 08:44:55,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:55,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092389632] [2021-11-09 08:44:55,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:55,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:56,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:56,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092389632] [2021-11-09 08:44:56,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092389632] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:56,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501614792] [2021-11-09 08:44:56,169 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:56,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:56,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:56,170 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:56,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-09 08:44:56,903 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-09 08:44:56,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:56,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:44:56,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:57,181 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:57,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501614792] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:57,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:57,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-09 08:44:57,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234348381] [2021-11-09 08:44:57,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:44:57,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:57,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:44:57,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:44:57,184 INFO L87 Difference]: Start difference. First operand 95 states and 95 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:57,240 INFO L93 Difference]: Finished difference Result 99 states and 99 transitions. [2021-11-09 08:44:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:44:57,241 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-09 08:44:57,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:57,246 INFO L225 Difference]: With dead ends: 99 [2021-11-09 08:44:57,246 INFO L226 Difference]: Without dead ends: 98 [2021-11-09 08:44:57,246 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:44:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-11-09 08:44:57,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2021-11-09 08:44:57,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 95 states have (on average 1.0210526315789474) internal successors, (97), 96 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:57,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2021-11-09 08:44:57,261 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 90 [2021-11-09 08:44:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:57,262 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2021-11-09 08:44:57,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2021-11-09 08:44:57,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-09 08:44:57,263 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:57,263 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 1, 1, 1, 1] [2021-11-09 08:44:57,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-09 08:44:57,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-09 08:44:57,479 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:57,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:57,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1594871773, now seen corresponding path program 17 times [2021-11-09 08:44:57,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:57,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83963102] [2021-11-09 08:44:57,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:57,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:57,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:57,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83963102] [2021-11-09 08:44:57,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83963102] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:57,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873367498] [2021-11-09 08:44:57,718 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:44:57,718 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:57,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:57,723 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:57,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-09 08:44:58,369 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-09 08:44:58,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:58,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-09 08:44:58,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:44:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:58,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873367498] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:58,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:44:58,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-09 08:44:58,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109410244] [2021-11-09 08:44:58,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 08:44:58,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:44:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 08:44:58,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:44:58,717 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:44:58,775 INFO L93 Difference]: Finished difference Result 101 states and 101 transitions. [2021-11-09 08:44:58,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 08:44:58,776 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-09 08:44:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:44:58,777 INFO L225 Difference]: With dead ends: 101 [2021-11-09 08:44:58,777 INFO L226 Difference]: Without dead ends: 100 [2021-11-09 08:44:58,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-09 08:44:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-11-09 08:44:58,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-11-09 08:44:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 98 states have (on average 1.0204081632653061) internal successors, (100), 99 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2021-11-09 08:44:58,782 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 93 [2021-11-09 08:44:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:44:58,782 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2021-11-09 08:44:58,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.894736842105263) internal successors, (93), 20 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:44:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2021-11-09 08:44:58,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-09 08:44:58,783 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:44:58,783 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1] [2021-11-09 08:44:58,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-09 08:44:59,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:59,011 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:44:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:44:59,012 INFO L85 PathProgramCache]: Analyzing trace with hash 631552293, now seen corresponding path program 18 times [2021-11-09 08:44:59,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:44:59,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839056552] [2021-11-09 08:44:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:44:59,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:44:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:44:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:44:59,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:44:59,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839056552] [2021-11-09 08:44:59,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839056552] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:44:59,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300965008] [2021-11-09 08:44:59,224 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:44:59,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:44:59,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:44:59,231 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:44:59,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-09 08:44:59,875 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-09 08:44:59,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:44:59,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-09 08:44:59,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:00,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300965008] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:00,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:00,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-09 08:45:00,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728944669] [2021-11-09 08:45:00,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-09 08:45:00,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:00,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-09 08:45:00,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:45:00,206 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:00,278 INFO L93 Difference]: Finished difference Result 104 states and 104 transitions. [2021-11-09 08:45:00,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:45:00,279 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-11-09 08:45:00,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:00,281 INFO L225 Difference]: With dead ends: 104 [2021-11-09 08:45:00,281 INFO L226 Difference]: Without dead ends: 103 [2021-11-09 08:45:00,282 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:45:00,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-09 08:45:00,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2021-11-09 08:45:00,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 100 states have (on average 1.02) internal successors, (102), 101 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:00,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2021-11-09 08:45:00,288 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 95 [2021-11-09 08:45:00,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:00,291 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2021-11-09 08:45:00,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:00,292 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2021-11-09 08:45:00,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-09 08:45:00,295 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:00,295 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 1, 1, 1, 1] [2021-11-09 08:45:00,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:00,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:00,507 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:00,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:00,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1677313297, now seen corresponding path program 18 times [2021-11-09 08:45:00,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:00,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552613894] [2021-11-09 08:45:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:00,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:00,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:00,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552613894] [2021-11-09 08:45:00,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552613894] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:00,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287148225] [2021-11-09 08:45:00,764 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:45:00,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:00,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:00,765 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:00,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-09 08:45:01,446 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-09 08:45:01,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:01,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-09 08:45:01,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:01,741 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:01,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287148225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:01,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:01,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-09 08:45:01,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850116439] [2021-11-09 08:45:01,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-09 08:45:01,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:01,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-09 08:45:01,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:45:01,762 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 21 states, 20 states have (on average 4.9) internal successors, (98), 21 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:01,818 INFO L93 Difference]: Finished difference Result 106 states and 106 transitions. [2021-11-09 08:45:01,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-09 08:45:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.9) internal successors, (98), 21 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-11-09 08:45:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:01,820 INFO L225 Difference]: With dead ends: 106 [2021-11-09 08:45:01,821 INFO L226 Difference]: Without dead ends: 105 [2021-11-09 08:45:01,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-09 08:45:01,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-09 08:45:01,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-09 08:45:01,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 103 states have (on average 1.0194174757281553) internal successors, (105), 104 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 105 transitions. [2021-11-09 08:45:01,826 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 105 transitions. Word has length 98 [2021-11-09 08:45:01,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:01,827 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 105 transitions. [2021-11-09 08:45:01,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.9) internal successors, (98), 21 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 105 transitions. [2021-11-09 08:45:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-09 08:45:01,828 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:01,828 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1] [2021-11-09 08:45:01,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:02,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-09 08:45:02,043 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:02,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:02,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1285340943, now seen corresponding path program 19 times [2021-11-09 08:45:02,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:02,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416970786] [2021-11-09 08:45:02,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:02,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:02,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:02,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416970786] [2021-11-09 08:45:02,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416970786] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:02,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725087385] [2021-11-09 08:45:02,292 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:02,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:02,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:02,294 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:02,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-09 08:45:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:02,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:45:02,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:03,248 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:03,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725087385] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:03,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:03,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-09 08:45:03,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138153611] [2021-11-09 08:45:03,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 08:45:03,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:03,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 08:45:03,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:45:03,250 INFO L87 Difference]: Start difference. First operand 105 states and 105 transitions. Second operand has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:03,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:03,316 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2021-11-09 08:45:03,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:45:03,316 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-09 08:45:03,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:03,318 INFO L225 Difference]: With dead ends: 109 [2021-11-09 08:45:03,318 INFO L226 Difference]: Without dead ends: 108 [2021-11-09 08:45:03,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:45:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-09 08:45:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2021-11-09 08:45:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 105 states have (on average 1.019047619047619) internal successors, (107), 106 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:03,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 107 transitions. [2021-11-09 08:45:03,324 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 107 transitions. Word has length 100 [2021-11-09 08:45:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:03,325 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 107 transitions. [2021-11-09 08:45:03,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:03,325 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 107 transitions. [2021-11-09 08:45:03,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-09 08:45:03,326 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:03,326 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 1, 1, 1, 1] [2021-11-09 08:45:03,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:03,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-11-09 08:45:03,539 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:03,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1958539357, now seen corresponding path program 19 times [2021-11-09 08:45:03,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:03,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891061492] [2021-11-09 08:45:03,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:03,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:03,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:03,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891061492] [2021-11-09 08:45:03,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891061492] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:03,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731404207] [2021-11-09 08:45:03,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:03,824 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:03,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:03,825 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:03,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-09 08:45:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:04,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-09 08:45:04,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:04,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731404207] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:04,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:04,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-09 08:45:04,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083427941] [2021-11-09 08:45:04,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 08:45:04,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:04,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 08:45:04,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:45:04,843 INFO L87 Difference]: Start difference. First operand 107 states and 107 transitions. Second operand has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 22 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:04,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:04,891 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2021-11-09 08:45:04,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-09 08:45:04,891 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 22 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-09 08:45:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:04,892 INFO L225 Difference]: With dead ends: 111 [2021-11-09 08:45:04,892 INFO L226 Difference]: Without dead ends: 110 [2021-11-09 08:45:04,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-09 08:45:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-09 08:45:04,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-11-09 08:45:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:04,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2021-11-09 08:45:04,898 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 103 [2021-11-09 08:45:04,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:04,899 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2021-11-09 08:45:04,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.904761904761905) internal successors, (103), 22 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:04,899 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2021-11-09 08:45:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-09 08:45:04,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:04,900 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1] [2021-11-09 08:45:04,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-11-09 08:45:05,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:05,104 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:05,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash -960644955, now seen corresponding path program 20 times [2021-11-09 08:45:05,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:05,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55049104] [2021-11-09 08:45:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:05,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:05,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:05,375 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:05,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:05,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55049104] [2021-11-09 08:45:05,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55049104] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:05,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013396086] [2021-11-09 08:45:05,376 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:45:05,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:05,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:05,377 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:05,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-09 08:45:06,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:45:06,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:06,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 08:45:06,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:06,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013396086] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:06,382 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:06,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-09 08:45:06,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532229361] [2021-11-09 08:45:06,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-09 08:45:06,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:06,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-09 08:45:06,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:45:06,383 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:06,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:06,462 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2021-11-09 08:45:06,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 08:45:06,463 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-09 08:45:06,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:06,467 INFO L225 Difference]: With dead ends: 114 [2021-11-09 08:45:06,467 INFO L226 Difference]: Without dead ends: 113 [2021-11-09 08:45:06,468 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:45:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-09 08:45:06,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2021-11-09 08:45:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.018181818181818) internal successors, (112), 111 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2021-11-09 08:45:06,473 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 105 [2021-11-09 08:45:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:06,474 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2021-11-09 08:45:06,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2021-11-09 08:45:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-09 08:45:06,476 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:06,477 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 1, 1, 1, 1] [2021-11-09 08:45:06,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-11-09 08:45:06,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-09 08:45:06,699 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:06,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:06,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1206711441, now seen corresponding path program 20 times [2021-11-09 08:45:06,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:06,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668729830] [2021-11-09 08:45:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:06,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:06,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:06,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668729830] [2021-11-09 08:45:06,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668729830] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:06,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956420930] [2021-11-09 08:45:06,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:45:06,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:06,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:06,988 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:07,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-09 08:45:07,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:45:07,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:07,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-09 08:45:07,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:07,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:07,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956420930] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:07,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:07,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-09 08:45:07,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763281550] [2021-11-09 08:45:07,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-09 08:45:07,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-09 08:45:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:45:07,988 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand has 23 states, 22 states have (on average 4.909090909090909) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:08,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:08,052 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2021-11-09 08:45:08,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 08:45:08,052 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.909090909090909) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-09 08:45:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:08,053 INFO L225 Difference]: With dead ends: 116 [2021-11-09 08:45:08,053 INFO L226 Difference]: Without dead ends: 115 [2021-11-09 08:45:08,054 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-09 08:45:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-09 08:45:08,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-09 08:45:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 113 states have (on average 1.0176991150442478) internal successors, (115), 114 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2021-11-09 08:45:08,058 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 108 [2021-11-09 08:45:08,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:08,059 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2021-11-09 08:45:08,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.909090909090909) internal successors, (108), 23 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:08,059 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2021-11-09 08:45:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-09 08:45:08,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:08,060 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1] [2021-11-09 08:45:08,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-11-09 08:45:08,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-09 08:45:08,284 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:08,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:08,284 INFO L85 PathProgramCache]: Analyzing trace with hash -8523407, now seen corresponding path program 21 times [2021-11-09 08:45:08,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:08,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677942316] [2021-11-09 08:45:08,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:08,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:08,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:08,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:08,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677942316] [2021-11-09 08:45:08,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677942316] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:08,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175427845] [2021-11-09 08:45:08,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:45:08,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:08,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:08,607 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:08,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-09 08:45:09,645 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-09 08:45:09,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:09,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-09 08:45:09,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:09,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175427845] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:09,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:09,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-09 08:45:09,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104792020] [2021-11-09 08:45:09,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:45:09,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:09,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:45:09,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:45:09,912 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:10,006 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2021-11-09 08:45:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:45:10,007 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-09 08:45:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:10,008 INFO L225 Difference]: With dead ends: 119 [2021-11-09 08:45:10,008 INFO L226 Difference]: Without dead ends: 118 [2021-11-09 08:45:10,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:45:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-09 08:45:10,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2021-11-09 08:45:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2021-11-09 08:45:10,014 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 110 [2021-11-09 08:45:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:10,015 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2021-11-09 08:45:10,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2021-11-09 08:45:10,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-09 08:45:10,016 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:10,017 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 1, 1, 1, 1] [2021-11-09 08:45:10,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-11-09 08:45:10,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-09 08:45:10,229 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash -517697757, now seen corresponding path program 21 times [2021-11-09 08:45:10,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:10,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303264814] [2021-11-09 08:45:10,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:10,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:10,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:10,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:10,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303264814] [2021-11-09 08:45:10,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303264814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:10,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986919251] [2021-11-09 08:45:10,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:45:10,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:10,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:10,569 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:10,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-09 08:45:11,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-09 08:45:11,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:11,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-09 08:45:11,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:11,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986919251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:11,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:11,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-09 08:45:11,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996002341] [2021-11-09 08:45:11,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-09 08:45:11,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-09 08:45:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:45:11,742 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:11,801 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2021-11-09 08:45:11,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 08:45:11,802 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-09 08:45:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:11,803 INFO L225 Difference]: With dead ends: 121 [2021-11-09 08:45:11,803 INFO L226 Difference]: Without dead ends: 120 [2021-11-09 08:45:11,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-09 08:45:11,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-09 08:45:11,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-09 08:45:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2021-11-09 08:45:11,808 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 113 [2021-11-09 08:45:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:11,809 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2021-11-09 08:45:11,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.913043478260869) internal successors, (113), 24 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2021-11-09 08:45:11,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-09 08:45:11,810 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:11,810 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-11-09 08:45:11,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2021-11-09 08:45:12,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:12,015 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:12,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 22 times [2021-11-09 08:45:12,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:12,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940626504] [2021-11-09 08:45:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:12,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:12,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:12,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940626504] [2021-11-09 08:45:12,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940626504] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:12,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969528022] [2021-11-09 08:45:12,359 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:45:12,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:12,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:12,372 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:12,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-09 08:45:13,409 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:45:13,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:13,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-09 08:45:13,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:13,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969528022] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:13,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:13,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-09 08:45:13,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340816171] [2021-11-09 08:45:13,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 08:45:13,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:13,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 08:45:13,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:45:13,743 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:13,819 INFO L93 Difference]: Finished difference Result 124 states and 124 transitions. [2021-11-09 08:45:13,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 08:45:13,843 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-09 08:45:13,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:13,844 INFO L225 Difference]: With dead ends: 124 [2021-11-09 08:45:13,844 INFO L226 Difference]: Without dead ends: 123 [2021-11-09 08:45:13,845 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:45:13,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-09 08:45:13,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 122. [2021-11-09 08:45:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 121 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2021-11-09 08:45:13,850 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 115 [2021-11-09 08:45:13,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:13,851 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2021-11-09 08:45:13,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2021-11-09 08:45:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-09 08:45:13,852 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:13,853 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2021-11-09 08:45:13,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:14,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2021-11-09 08:45:14,067 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 22 times [2021-11-09 08:45:14,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:14,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496237114] [2021-11-09 08:45:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:14,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:14,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:14,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:14,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496237114] [2021-11-09 08:45:14,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496237114] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:14,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270716893] [2021-11-09 08:45:14,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:45:14,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:14,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:14,507 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:14,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-09 08:45:15,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:45:15,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:15,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-09 08:45:15,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:15,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:15,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1270716893] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:15,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:15,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-09 08:45:15,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013163593] [2021-11-09 08:45:15,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-09 08:45:15,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:15,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-09 08:45:15,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:45:15,954 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:16,017 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2021-11-09 08:45:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-09 08:45:16,018 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-09 08:45:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:16,019 INFO L225 Difference]: With dead ends: 126 [2021-11-09 08:45:16,019 INFO L226 Difference]: Without dead ends: 125 [2021-11-09 08:45:16,020 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-09 08:45:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-09 08:45:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-11-09 08:45:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.016260162601626) internal successors, (125), 124 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 125 transitions. [2021-11-09 08:45:16,027 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 125 transitions. Word has length 118 [2021-11-09 08:45:16,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:16,027 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 125 transitions. [2021-11-09 08:45:16,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.916666666666667) internal successors, (118), 25 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 125 transitions. [2021-11-09 08:45:16,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-09 08:45:16,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:16,029 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1] [2021-11-09 08:45:16,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:16,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:16,240 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 542507505, now seen corresponding path program 23 times [2021-11-09 08:45:16,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:16,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042800873] [2021-11-09 08:45:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:16,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:16,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:16,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:16,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042800873] [2021-11-09 08:45:16,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042800873] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:16,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587857710] [2021-11-09 08:45:16,613 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:45:16,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:16,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:16,614 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:16,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-09 08:45:17,853 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-09 08:45:17,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:17,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-09 08:45:17,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:18,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:18,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587857710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:18,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:18,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-09 08:45:18,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592822773] [2021-11-09 08:45:18,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-09 08:45:18,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:18,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-09 08:45:18,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:45:18,182 INFO L87 Difference]: Start difference. First operand 125 states and 125 transitions. Second operand has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:18,243 INFO L93 Difference]: Finished difference Result 129 states and 129 transitions. [2021-11-09 08:45:18,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 08:45:18,244 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-11-09 08:45:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:18,245 INFO L225 Difference]: With dead ends: 129 [2021-11-09 08:45:18,245 INFO L226 Difference]: Without dead ends: 128 [2021-11-09 08:45:18,245 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:45:18,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-09 08:45:18,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2021-11-09 08:45:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 125 states have (on average 1.016) internal successors, (127), 126 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2021-11-09 08:45:18,250 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 120 [2021-11-09 08:45:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:18,251 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2021-11-09 08:45:18,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:18,251 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2021-11-09 08:45:18,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-09 08:45:18,252 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:18,252 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1] [2021-11-09 08:45:18,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:18,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-11-09 08:45:18,455 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash -120803677, now seen corresponding path program 23 times [2021-11-09 08:45:18,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:18,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118844220] [2021-11-09 08:45:18,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:18,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:18,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 0 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:18,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:18,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118844220] [2021-11-09 08:45:18,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118844220] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:18,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582653597] [2021-11-09 08:45:18,842 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:45:18,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:18,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:18,847 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:18,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-09 08:45:19,877 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-09 08:45:19,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:19,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-09 08:45:19,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 0 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:20,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582653597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:20,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:20,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-09 08:45:20,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731829865] [2021-11-09 08:45:20,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-09 08:45:20,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:20,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-09 08:45:20,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:45:20,190 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand has 26 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:20,266 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2021-11-09 08:45:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 08:45:20,267 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2021-11-09 08:45:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:20,268 INFO L225 Difference]: With dead ends: 131 [2021-11-09 08:45:20,268 INFO L226 Difference]: Without dead ends: 130 [2021-11-09 08:45:20,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-09 08:45:20,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-11-09 08:45:20,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-11-09 08:45:20,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 128 states have (on average 1.015625) internal successors, (130), 129 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2021-11-09 08:45:20,273 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 123 [2021-11-09 08:45:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:20,273 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2021-11-09 08:45:20,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.92) internal successors, (123), 26 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:20,274 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2021-11-09 08:45:20,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-09 08:45:20,275 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:20,275 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1] [2021-11-09 08:45:20,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-11-09 08:45:20,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-09 08:45:20,499 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:20,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:20,500 INFO L85 PathProgramCache]: Analyzing trace with hash -128215131, now seen corresponding path program 24 times [2021-11-09 08:45:20,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:20,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071929279] [2021-11-09 08:45:20,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:20,500 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:20,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:20,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:20,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071929279] [2021-11-09 08:45:20,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071929279] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:20,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082364910] [2021-11-09 08:45:20,906 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:45:20,906 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:20,908 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:20,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-09 08:45:22,029 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-09 08:45:22,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:22,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-09 08:45:22,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:22,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:22,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082364910] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:22,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:22,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-09 08:45:22,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458201862] [2021-11-09 08:45:22,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-09 08:45:22,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:22,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-09 08:45:22,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:45:22,374 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:22,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:22,448 INFO L93 Difference]: Finished difference Result 134 states and 134 transitions. [2021-11-09 08:45:22,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 08:45:22,449 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-09 08:45:22,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:22,450 INFO L225 Difference]: With dead ends: 134 [2021-11-09 08:45:22,450 INFO L226 Difference]: Without dead ends: 133 [2021-11-09 08:45:22,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:45:22,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-09 08:45:22,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 132. [2021-11-09 08:45:22,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 130 states have (on average 1.0153846153846153) internal successors, (132), 131 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 132 transitions. [2021-11-09 08:45:22,457 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 132 transitions. Word has length 125 [2021-11-09 08:45:22,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:22,457 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 132 transitions. [2021-11-09 08:45:22,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 132 transitions. [2021-11-09 08:45:22,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-09 08:45:22,459 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:22,459 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 1, 1, 1, 1] [2021-11-09 08:45:22,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:22,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:22,675 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:22,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:22,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1430991761, now seen corresponding path program 24 times [2021-11-09 08:45:22,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:22,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001646320] [2021-11-09 08:45:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:22,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:23,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:23,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001646320] [2021-11-09 08:45:23,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001646320] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:23,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067667794] [2021-11-09 08:45:23,106 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:45:23,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:23,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:23,108 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:23,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-09 08:45:24,262 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-09 08:45:24,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:24,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-09 08:45:24,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1500 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:24,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067667794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:24,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:24,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-09 08:45:24,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707959018] [2021-11-09 08:45:24,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-09 08:45:24,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:24,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-09 08:45:24,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:45:24,664 INFO L87 Difference]: Start difference. First operand 132 states and 132 transitions. Second operand has 27 states, 26 states have (on average 4.923076923076923) internal successors, (128), 27 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:24,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:24,739 INFO L93 Difference]: Finished difference Result 136 states and 136 transitions. [2021-11-09 08:45:24,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 08:45:24,739 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.923076923076923) internal successors, (128), 27 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-09 08:45:24,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:24,744 INFO L225 Difference]: With dead ends: 136 [2021-11-09 08:45:24,744 INFO L226 Difference]: Without dead ends: 135 [2021-11-09 08:45:24,745 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-09 08:45:24,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-09 08:45:24,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-09 08:45:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 133 states have (on average 1.0150375939849625) internal successors, (135), 134 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 135 transitions. [2021-11-09 08:45:24,749 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 135 transitions. Word has length 128 [2021-11-09 08:45:24,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:24,749 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 135 transitions. [2021-11-09 08:45:24,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.923076923076923) internal successors, (128), 27 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:24,749 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 135 transitions. [2021-11-09 08:45:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-09 08:45:24,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:24,750 INFO L513 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 1, 1, 1, 1] [2021-11-09 08:45:24,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:24,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:24,955 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -793546127, now seen corresponding path program 25 times [2021-11-09 08:45:24,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:24,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98114849] [2021-11-09 08:45:24,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:24,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:25,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:25,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98114849] [2021-11-09 08:45:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98114849] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:25,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351365170] [2021-11-09 08:45:25,403 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:25,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:25,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:25,405 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:25,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-09 08:45:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:26,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-09 08:45:26,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:27,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:27,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351365170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:27,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:27,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-09 08:45:27,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665693866] [2021-11-09 08:45:27,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 08:45:27,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:27,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 08:45:27,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:45:27,110 INFO L87 Difference]: Start difference. First operand 135 states and 135 transitions. Second operand has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:27,202 INFO L93 Difference]: Finished difference Result 139 states and 139 transitions. [2021-11-09 08:45:27,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-09 08:45:27,203 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-09 08:45:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:27,204 INFO L225 Difference]: With dead ends: 139 [2021-11-09 08:45:27,204 INFO L226 Difference]: Without dead ends: 138 [2021-11-09 08:45:27,204 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:45:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-09 08:45:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2021-11-09 08:45:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 136 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 137 transitions. [2021-11-09 08:45:27,209 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 137 transitions. Word has length 130 [2021-11-09 08:45:27,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:27,209 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 137 transitions. [2021-11-09 08:45:27,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:27,210 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 137 transitions. [2021-11-09 08:45:27,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-09 08:45:27,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:27,211 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 1, 1, 1, 1] [2021-11-09 08:45:27,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:27,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-09 08:45:27,427 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:27,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1032622557, now seen corresponding path program 25 times [2021-11-09 08:45:27,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:27,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543283604] [2021-11-09 08:45:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:27,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:27,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 0 proven. 1625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:27,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:27,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543283604] [2021-11-09 08:45:27,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543283604] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:27,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616375042] [2021-11-09 08:45:27,893 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:27,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:27,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:27,897 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:27,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-09 08:45:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:29,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-09 08:45:29,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 0 proven. 1625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:29,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616375042] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:29,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:29,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-09 08:45:29,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423005494] [2021-11-09 08:45:29,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 08:45:29,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:29,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 08:45:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:45:29,459 INFO L87 Difference]: Start difference. First operand 137 states and 137 transitions. Second operand has 28 states, 27 states have (on average 4.925925925925926) internal successors, (133), 28 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:29,522 INFO L93 Difference]: Finished difference Result 141 states and 141 transitions. [2021-11-09 08:45:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-09 08:45:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.925925925925926) internal successors, (133), 28 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 133 [2021-11-09 08:45:29,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:29,523 INFO L225 Difference]: With dead ends: 141 [2021-11-09 08:45:29,523 INFO L226 Difference]: Without dead ends: 140 [2021-11-09 08:45:29,523 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-09 08:45:29,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-09 08:45:29,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-11-09 08:45:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 139 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 140 transitions. [2021-11-09 08:45:29,527 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 140 transitions. Word has length 133 [2021-11-09 08:45:29,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:29,527 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 140 transitions. [2021-11-09 08:45:29,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.925925925925926) internal successors, (133), 28 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 140 transitions. [2021-11-09 08:45:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-09 08:45:29,529 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:29,529 INFO L513 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 1, 1, 1, 1] [2021-11-09 08:45:29,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:29,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:29,735 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:29,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:29,736 INFO L85 PathProgramCache]: Analyzing trace with hash -212830427, now seen corresponding path program 26 times [2021-11-09 08:45:29,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:29,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788912592] [2021-11-09 08:45:29,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:29,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:30,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:30,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788912592] [2021-11-09 08:45:30,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788912592] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:30,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141096015] [2021-11-09 08:45:30,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:45:30,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:30,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:30,155 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:30,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-09 08:45:31,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:45:31,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:31,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-09 08:45:31,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:31,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:31,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141096015] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:31,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:31,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-09 08:45:31,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825272819] [2021-11-09 08:45:31,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 08:45:31,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 08:45:31,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:45:31,711 INFO L87 Difference]: Start difference. First operand 140 states and 140 transitions. Second operand has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:31,810 INFO L93 Difference]: Finished difference Result 144 states and 144 transitions. [2021-11-09 08:45:31,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-09 08:45:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-11-09 08:45:31,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:31,812 INFO L225 Difference]: With dead ends: 144 [2021-11-09 08:45:31,812 INFO L226 Difference]: Without dead ends: 143 [2021-11-09 08:45:31,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:45:31,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-09 08:45:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 142. [2021-11-09 08:45:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 140 states have (on average 1.0142857142857142) internal successors, (142), 141 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:31,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 142 transitions. [2021-11-09 08:45:31,821 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 142 transitions. Word has length 135 [2021-11-09 08:45:31,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:31,821 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 142 transitions. [2021-11-09 08:45:31,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:31,822 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 142 transitions. [2021-11-09 08:45:31,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-09 08:45:31,823 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:31,823 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 26, 1, 1, 1, 1] [2021-11-09 08:45:31,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:32,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:32,047 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:32,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:32,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1059472145, now seen corresponding path program 26 times [2021-11-09 08:45:32,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:32,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042723059] [2021-11-09 08:45:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:32,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:32,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:32,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042723059] [2021-11-09 08:45:32,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042723059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:32,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671196806] [2021-11-09 08:45:32,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:45:32,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:32,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:32,438 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:32,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-09 08:45:33,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:45:33,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:33,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-09 08:45:33,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:33,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1755 backedges. 0 proven. 1755 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:33,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671196806] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:33,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:33,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-09 08:45:33,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775322541] [2021-11-09 08:45:33,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 08:45:33,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:33,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 08:45:33,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:45:33,939 INFO L87 Difference]: Start difference. First operand 142 states and 142 transitions. Second operand has 29 states, 28 states have (on average 4.928571428571429) internal successors, (138), 29 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:33,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:33,995 INFO L93 Difference]: Finished difference Result 146 states and 146 transitions. [2021-11-09 08:45:33,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-09 08:45:33,995 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.928571428571429) internal successors, (138), 29 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2021-11-09 08:45:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:33,996 INFO L225 Difference]: With dead ends: 146 [2021-11-09 08:45:33,996 INFO L226 Difference]: Without dead ends: 145 [2021-11-09 08:45:33,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-09 08:45:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-09 08:45:33,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-11-09 08:45:33,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.013986013986014) internal successors, (145), 144 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:33,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2021-11-09 08:45:33,999 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 138 [2021-11-09 08:45:33,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:33,999 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2021-11-09 08:45:33,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.928571428571429) internal successors, (138), 29 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:33,999 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2021-11-09 08:45:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-09 08:45:34,000 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:34,000 INFO L513 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 1, 1, 1, 1] [2021-11-09 08:45:34,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:34,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-11-09 08:45:34,201 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -245480719, now seen corresponding path program 27 times [2021-11-09 08:45:34,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:34,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327542653] [2021-11-09 08:45:34,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:34,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:34,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:34,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327542653] [2021-11-09 08:45:34,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327542653] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:34,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795384802] [2021-11-09 08:45:34,631 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:45:34,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:34,632 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:34,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-09 08:45:36,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-09 08:45:36,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:36,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-09 08:45:36,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:36,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795384802] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:36,439 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:36,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-09 08:45:36,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086249611] [2021-11-09 08:45:36,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-09 08:45:36,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-09 08:45:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:45:36,440 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:36,505 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2021-11-09 08:45:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-09 08:45:36,506 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-09 08:45:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:36,507 INFO L225 Difference]: With dead ends: 149 [2021-11-09 08:45:36,507 INFO L226 Difference]: Without dead ends: 148 [2021-11-09 08:45:36,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:45:36,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-09 08:45:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 147. [2021-11-09 08:45:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 145 states have (on average 1.013793103448276) internal successors, (147), 146 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 147 transitions. [2021-11-09 08:45:36,512 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 147 transitions. Word has length 140 [2021-11-09 08:45:36,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:36,513 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 147 transitions. [2021-11-09 08:45:36,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:36,513 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 147 transitions. [2021-11-09 08:45:36,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-09 08:45:36,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:36,514 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 27, 1, 1, 1, 1] [2021-11-09 08:45:36,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:36,733 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:36,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1213255075, now seen corresponding path program 27 times [2021-11-09 08:45:36,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:36,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48784783] [2021-11-09 08:45:36,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:36,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:37,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 0 proven. 1890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:37,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:37,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48784783] [2021-11-09 08:45:37,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48784783] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:37,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748056642] [2021-11-09 08:45:37,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:45:37,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:37,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:37,213 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:37,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-09 08:45:38,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-09 08:45:38,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:38,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-09 08:45:38,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1890 backedges. 0 proven. 1890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:39,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748056642] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:39,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:39,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-09 08:45:39,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345790761] [2021-11-09 08:45:39,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-09 08:45:39,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:39,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-09 08:45:39,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:45:39,289 INFO L87 Difference]: Start difference. First operand 147 states and 147 transitions. Second operand has 30 states, 29 states have (on average 4.931034482758621) internal successors, (143), 30 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:39,371 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2021-11-09 08:45:39,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-09 08:45:39,372 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.931034482758621) internal successors, (143), 30 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-09 08:45:39,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:39,373 INFO L225 Difference]: With dead ends: 151 [2021-11-09 08:45:39,373 INFO L226 Difference]: Without dead ends: 150 [2021-11-09 08:45:39,373 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-09 08:45:39,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-09 08:45:39,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-09 08:45:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 148 states have (on average 1.0135135135135136) internal successors, (150), 149 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:39,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 150 transitions. [2021-11-09 08:45:39,378 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 150 transitions. Word has length 143 [2021-11-09 08:45:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:39,379 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 150 transitions. [2021-11-09 08:45:39,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.931034482758621) internal successors, (143), 30 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:39,381 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 150 transitions. [2021-11-09 08:45:39,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-09 08:45:39,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:39,382 INFO L513 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 1, 1, 1, 1] [2021-11-09 08:45:39,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:39,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:39,607 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:39,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:39,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2001991333, now seen corresponding path program 28 times [2021-11-09 08:45:39,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:39,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989650503] [2021-11-09 08:45:39,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:39,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:40,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:40,071 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:40,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989650503] [2021-11-09 08:45:40,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989650503] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:40,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057995465] [2021-11-09 08:45:40,072 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:45:40,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:40,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:40,074 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:40,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-09 08:45:41,353 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:45:41,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:41,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-09 08:45:41,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:41,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057995465] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:41,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:41,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-09 08:45:41,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322496466] [2021-11-09 08:45:41,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-09 08:45:41,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:41,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-09 08:45:41,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:45:41,732 INFO L87 Difference]: Start difference. First operand 150 states and 150 transitions. Second operand has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:41,801 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2021-11-09 08:45:41,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 08:45:41,802 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-09 08:45:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:41,802 INFO L225 Difference]: With dead ends: 154 [2021-11-09 08:45:41,802 INFO L226 Difference]: Without dead ends: 153 [2021-11-09 08:45:41,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:45:41,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-09 08:45:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2021-11-09 08:45:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 151 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2021-11-09 08:45:41,806 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 145 [2021-11-09 08:45:41,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:41,806 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2021-11-09 08:45:41,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:41,807 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2021-11-09 08:45:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-09 08:45:41,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:41,807 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 28, 1, 1, 1, 1] [2021-11-09 08:45:41,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-11-09 08:45:42,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-11-09 08:45:42,015 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1407978863, now seen corresponding path program 28 times [2021-11-09 08:45:42,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:42,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767299660] [2021-11-09 08:45:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:42,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 2030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:42,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:42,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767299660] [2021-11-09 08:45:42,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767299660] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:42,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397955017] [2021-11-09 08:45:42,471 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:45:42,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:42,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:42,472 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:42,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-11-09 08:45:43,783 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:45:43,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:43,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-09 08:45:43,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:44,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2030 backedges. 0 proven. 2030 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:44,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397955017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:44,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:44,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-09 08:45:44,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139454564] [2021-11-09 08:45:44,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-09 08:45:44,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-09 08:45:44,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:45:44,187 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand has 31 states, 30 states have (on average 4.933333333333334) internal successors, (148), 31 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:44,272 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2021-11-09 08:45:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 08:45:44,273 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.933333333333334) internal successors, (148), 31 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-09 08:45:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:44,274 INFO L225 Difference]: With dead ends: 156 [2021-11-09 08:45:44,274 INFO L226 Difference]: Without dead ends: 155 [2021-11-09 08:45:44,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-09 08:45:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-09 08:45:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-09 08:45:44,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 154 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2021-11-09 08:45:44,279 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 148 [2021-11-09 08:45:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:44,279 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2021-11-09 08:45:44,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.933333333333334) internal successors, (148), 31 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2021-11-09 08:45:44,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-09 08:45:44,280 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:44,280 INFO L513 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 1, 1, 1, 1] [2021-11-09 08:45:44,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-11-09 08:45:44,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:44,481 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 152990577, now seen corresponding path program 29 times [2021-11-09 08:45:44,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:44,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047657834] [2021-11-09 08:45:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:44,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:44,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:44,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:44,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047657834] [2021-11-09 08:45:44,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047657834] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:44,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396154367] [2021-11-09 08:45:44,970 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:45:44,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:44,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:44,974 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:44,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-09 08:45:46,402 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-09 08:45:46,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:46,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-09 08:45:46,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:46,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396154367] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:46,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:46,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-09 08:45:46,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795373165] [2021-11-09 08:45:46,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-09 08:45:46,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:46,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-09 08:45:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:45:46,875 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:46,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:46,988 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2021-11-09 08:45:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 08:45:46,989 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-11-09 08:45:46,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:46,990 INFO L225 Difference]: With dead ends: 159 [2021-11-09 08:45:46,990 INFO L226 Difference]: Without dead ends: 158 [2021-11-09 08:45:46,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:45:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-09 08:45:46,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2021-11-09 08:45:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 155 states have (on average 1.0129032258064516) internal successors, (157), 156 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 157 transitions. [2021-11-09 08:45:46,997 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 157 transitions. Word has length 150 [2021-11-09 08:45:46,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:46,998 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 157 transitions. [2021-11-09 08:45:46,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 157 transitions. [2021-11-09 08:45:46,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-09 08:45:46,999 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:47,000 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 29, 1, 1, 1, 1] [2021-11-09 08:45:47,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:47,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:47,227 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:47,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:47,228 INFO L85 PathProgramCache]: Analyzing trace with hash 782028067, now seen corresponding path program 29 times [2021-11-09 08:45:47,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:47,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279157831] [2021-11-09 08:45:47,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:47,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 0 proven. 2175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:47,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:47,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279157831] [2021-11-09 08:45:47,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279157831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:47,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206050312] [2021-11-09 08:45:47,816 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:45:47,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:47,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:47,820 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-09 08:45:49,525 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-09 08:45:49,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:49,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-09 08:45:49,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:49,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2175 backedges. 0 proven. 2175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:49,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206050312] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:49,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:49,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-09 08:45:49,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376505773] [2021-11-09 08:45:49,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-09 08:45:49,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-09 08:45:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:45:49,961 INFO L87 Difference]: Start difference. First operand 157 states and 157 transitions. Second operand has 32 states, 31 states have (on average 4.935483870967742) internal successors, (153), 32 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:50,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:50,050 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2021-11-09 08:45:50,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 08:45:50,051 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.935483870967742) internal successors, (153), 32 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-09 08:45:50,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:50,052 INFO L225 Difference]: With dead ends: 161 [2021-11-09 08:45:50,052 INFO L226 Difference]: Without dead ends: 160 [2021-11-09 08:45:50,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-09 08:45:50,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-09 08:45:50,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-11-09 08:45:50,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0126582278481013) internal successors, (160), 159 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 160 transitions. [2021-11-09 08:45:50,059 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 160 transitions. Word has length 153 [2021-11-09 08:45:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:50,059 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 160 transitions. [2021-11-09 08:45:50,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.935483870967742) internal successors, (153), 32 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 160 transitions. [2021-11-09 08:45:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-09 08:45:50,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:50,061 INFO L513 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-11-09 08:45:50,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-11-09 08:45:50,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-11-09 08:45:50,275 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash -90302939, now seen corresponding path program 30 times [2021-11-09 08:45:50,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:50,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585117501] [2021-11-09 08:45:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:50,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:50,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:50,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585117501] [2021-11-09 08:45:50,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585117501] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:50,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654855137] [2021-11-09 08:45:50,745 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:45:50,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:50,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:50,746 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:50,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-11-09 08:45:52,315 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-09 08:45:52,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:52,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-09 08:45:52,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:52,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:52,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654855137] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:52,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:52,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-09 08:45:52,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061765776] [2021-11-09 08:45:52,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-09 08:45:52,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-09 08:45:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:45:52,715 INFO L87 Difference]: Start difference. First operand 160 states and 160 transitions. Second operand has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:52,825 INFO L93 Difference]: Finished difference Result 164 states and 164 transitions. [2021-11-09 08:45:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-09 08:45:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-11-09 08:45:52,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:52,827 INFO L225 Difference]: With dead ends: 164 [2021-11-09 08:45:52,828 INFO L226 Difference]: Without dead ends: 163 [2021-11-09 08:45:52,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:45:52,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-11-09 08:45:52,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 162. [2021-11-09 08:45:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:52,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2021-11-09 08:45:52,834 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 155 [2021-11-09 08:45:52,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:52,834 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2021-11-09 08:45:52,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:52,835 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2021-11-09 08:45:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-09 08:45:52,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:52,836 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 30, 1, 1, 1, 1] [2021-11-09 08:45:52,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:53,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:53,047 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:53,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:53,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1565278737, now seen corresponding path program 30 times [2021-11-09 08:45:53,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:53,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192026059] [2021-11-09 08:45:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:53,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:53,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:53,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192026059] [2021-11-09 08:45:53,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192026059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:53,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102918839] [2021-11-09 08:45:53,509 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:45:53,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:53,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:53,513 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:53,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-09 08:45:55,141 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-09 08:45:55,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:45:55,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-09 08:45:55,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:55,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102918839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:55,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:55,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-09 08:45:55,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737057534] [2021-11-09 08:45:55,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-09 08:45:55,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:55,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-09 08:45:55,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:45:55,516 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 33 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:55,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:55,585 INFO L93 Difference]: Finished difference Result 166 states and 166 transitions. [2021-11-09 08:45:55,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-09 08:45:55,586 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2021-11-09 08:45:55,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:55,587 INFO L225 Difference]: With dead ends: 166 [2021-11-09 08:45:55,587 INFO L226 Difference]: Without dead ends: 165 [2021-11-09 08:45:55,587 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 08:45:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-09 08:45:55,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-11-09 08:45:55,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 163 states have (on average 1.0122699386503067) internal successors, (165), 164 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 165 transitions. [2021-11-09 08:45:55,592 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 165 transitions. Word has length 158 [2021-11-09 08:45:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:55,592 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 165 transitions. [2021-11-09 08:45:55,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.9375) internal successors, (158), 33 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 165 transitions. [2021-11-09 08:45:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-09 08:45:55,594 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:55,594 INFO L513 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 1, 1, 1, 1] [2021-11-09 08:45:55,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:55,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:55,811 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:55,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:55,811 INFO L85 PathProgramCache]: Analyzing trace with hash -994311183, now seen corresponding path program 31 times [2021-11-09 08:45:55,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:55,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783854961] [2021-11-09 08:45:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:55,811 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:56,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:56,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783854961] [2021-11-09 08:45:56,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783854961] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:56,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052834586] [2021-11-09 08:45:56,276 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:56,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:56,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:56,277 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:56,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-11-09 08:45:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:57,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-09 08:45:57,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:45:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:58,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052834586] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:58,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:45:58,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-09 08:45:58,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931006910] [2021-11-09 08:45:58,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-09 08:45:58,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:45:58,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-09 08:45:58,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:45:58,210 INFO L87 Difference]: Start difference. First operand 165 states and 165 transitions. Second operand has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:58,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:45:58,283 INFO L93 Difference]: Finished difference Result 169 states and 169 transitions. [2021-11-09 08:45:58,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 08:45:58,283 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-11-09 08:45:58,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:45:58,284 INFO L225 Difference]: With dead ends: 169 [2021-11-09 08:45:58,284 INFO L226 Difference]: Without dead ends: 168 [2021-11-09 08:45:58,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:45:58,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-09 08:45:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2021-11-09 08:45:58,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 166 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:58,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 167 transitions. [2021-11-09 08:45:58,290 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 167 transitions. Word has length 160 [2021-11-09 08:45:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:45:58,290 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 167 transitions. [2021-11-09 08:45:58,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:45:58,290 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 167 transitions. [2021-11-09 08:45:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-09 08:45:58,292 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:45:58,292 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 31, 1, 1, 1, 1] [2021-11-09 08:45:58,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-11-09 08:45:58,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-11-09 08:45:58,511 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:45:58,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:45:58,512 INFO L85 PathProgramCache]: Analyzing trace with hash 865037475, now seen corresponding path program 31 times [2021-11-09 08:45:58,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:45:58,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447337495] [2021-11-09 08:45:58,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:45:58,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:45:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:45:59,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2480 backedges. 0 proven. 2480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:45:59,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:45:59,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447337495] [2021-11-09 08:45:59,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447337495] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:45:59,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992670019] [2021-11-09 08:45:59,074 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:45:59,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:45:59,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:45:59,074 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:45:59,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-09 08:46:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:00,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-09 08:46:00,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2480 backedges. 0 proven. 2480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:01,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992670019] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:01,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:01,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-09 08:46:01,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481928657] [2021-11-09 08:46:01,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-09 08:46:01,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-09 08:46:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:46:01,197 INFO L87 Difference]: Start difference. First operand 167 states and 167 transitions. Second operand has 34 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 34 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:01,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:01,280 INFO L93 Difference]: Finished difference Result 171 states and 171 transitions. [2021-11-09 08:46:01,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 08:46:01,281 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 34 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 163 [2021-11-09 08:46:01,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:01,282 INFO L225 Difference]: With dead ends: 171 [2021-11-09 08:46:01,282 INFO L226 Difference]: Without dead ends: 170 [2021-11-09 08:46:01,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 08:46:01,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-09 08:46:01,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-11-09 08:46:01,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 168 states have (on average 1.0119047619047619) internal successors, (170), 169 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:01,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2021-11-09 08:46:01,289 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 163 [2021-11-09 08:46:01,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:01,290 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2021-11-09 08:46:01,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.9393939393939394) internal successors, (163), 34 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:01,290 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2021-11-09 08:46:01,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-09 08:46:01,291 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:01,292 INFO L513 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 1, 1, 1, 1] [2021-11-09 08:46:01,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:01,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-11-09 08:46:01,504 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:01,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1922640475, now seen corresponding path program 32 times [2021-11-09 08:46:01,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:01,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753972123] [2021-11-09 08:46:01,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:01,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:02,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:02,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:02,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753972123] [2021-11-09 08:46:02,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753972123] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:02,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661340170] [2021-11-09 08:46:02,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:46:02,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:02,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:02,095 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:02,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-09 08:46:03,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:46:03,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:03,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-09 08:46:03,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:04,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:04,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661340170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:04,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:04,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-09 08:46:04,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402006710] [2021-11-09 08:46:04,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-09 08:46:04,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-09 08:46:04,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:46:04,250 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:04,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:04,322 INFO L93 Difference]: Finished difference Result 174 states and 174 transitions. [2021-11-09 08:46:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 08:46:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-09 08:46:04,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:04,324 INFO L225 Difference]: With dead ends: 174 [2021-11-09 08:46:04,324 INFO L226 Difference]: Without dead ends: 173 [2021-11-09 08:46:04,324 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:46:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-09 08:46:04,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 172. [2021-11-09 08:46:04,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 170 states have (on average 1.011764705882353) internal successors, (172), 171 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 172 transitions. [2021-11-09 08:46:04,330 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 172 transitions. Word has length 165 [2021-11-09 08:46:04,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:04,330 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 172 transitions. [2021-11-09 08:46:04,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:04,331 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 172 transitions. [2021-11-09 08:46:04,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-09 08:46:04,332 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:04,332 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 32, 1, 1, 1, 1] [2021-11-09 08:46:04,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:04,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:04,546 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:04,547 INFO L85 PathProgramCache]: Analyzing trace with hash 301518447, now seen corresponding path program 32 times [2021-11-09 08:46:04,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:04,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447439695] [2021-11-09 08:46:04,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:04,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2640 backedges. 0 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:05,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:05,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447439695] [2021-11-09 08:46:05,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447439695] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:05,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225321231] [2021-11-09 08:46:05,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:46:05,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:05,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:05,045 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:05,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-09 08:46:06,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:46:06,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:06,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-09 08:46:06,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2640 backedges. 0 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:07,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225321231] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:07,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:07,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-09 08:46:07,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243202805] [2021-11-09 08:46:07,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-09 08:46:07,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:07,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-09 08:46:07,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:46:07,203 INFO L87 Difference]: Start difference. First operand 172 states and 172 transitions. Second operand has 35 states, 34 states have (on average 4.9411764705882355) internal successors, (168), 35 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:07,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:07,284 INFO L93 Difference]: Finished difference Result 176 states and 176 transitions. [2021-11-09 08:46:07,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 08:46:07,285 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.9411764705882355) internal successors, (168), 35 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 168 [2021-11-09 08:46:07,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:07,286 INFO L225 Difference]: With dead ends: 176 [2021-11-09 08:46:07,286 INFO L226 Difference]: Without dead ends: 175 [2021-11-09 08:46:07,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-09 08:46:07,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-11-09 08:46:07,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2021-11-09 08:46:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 173 states have (on average 1.0115606936416186) internal successors, (175), 174 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:07,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 175 transitions. [2021-11-09 08:46:07,290 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 175 transitions. Word has length 168 [2021-11-09 08:46:07,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:07,290 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 175 transitions. [2021-11-09 08:46:07,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.9411764705882355) internal successors, (168), 35 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 175 transitions. [2021-11-09 08:46:07,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-09 08:46:07,291 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:07,291 INFO L513 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 1, 1, 1, 1] [2021-11-09 08:46:07,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:07,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:07,492 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:07,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:07,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1996420209, now seen corresponding path program 33 times [2021-11-09 08:46:07,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:07,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840759410] [2021-11-09 08:46:07,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:07,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:08,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:08,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:08,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840759410] [2021-11-09 08:46:08,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840759410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:08,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127534340] [2021-11-09 08:46:08,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:46:08,010 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:08,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:08,011 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:08,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-09 08:46:09,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-09 08:46:09,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:09,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-09 08:46:09,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:10,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127534340] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:10,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:10,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-09 08:46:10,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951816826] [2021-11-09 08:46:10,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-09 08:46:10,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:10,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-09 08:46:10,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:46:10,356 INFO L87 Difference]: Start difference. First operand 175 states and 175 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:10,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:10,430 INFO L93 Difference]: Finished difference Result 179 states and 179 transitions. [2021-11-09 08:46:10,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-09 08:46:10,431 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-11-09 08:46:10,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:10,432 INFO L225 Difference]: With dead ends: 179 [2021-11-09 08:46:10,432 INFO L226 Difference]: Without dead ends: 178 [2021-11-09 08:46:10,432 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:46:10,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-09 08:46:10,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-09 08:46:10,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 175 states have (on average 1.0114285714285713) internal successors, (177), 176 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 177 transitions. [2021-11-09 08:46:10,437 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 177 transitions. Word has length 170 [2021-11-09 08:46:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:10,438 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 177 transitions. [2021-11-09 08:46:10,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:10,438 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 177 transitions. [2021-11-09 08:46:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-09 08:46:10,439 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:10,439 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 33, 1, 1, 1, 1] [2021-11-09 08:46:10,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:10,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable72 [2021-11-09 08:46:10,643 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:10,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:10,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1352618973, now seen corresponding path program 33 times [2021-11-09 08:46:10,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:10,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172864390] [2021-11-09 08:46:10,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:10,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2805 backedges. 0 proven. 2805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:11,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:11,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172864390] [2021-11-09 08:46:11,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172864390] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:11,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073937502] [2021-11-09 08:46:11,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:46:11,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:11,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:11,149 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:11,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-09 08:46:13,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-09 08:46:13,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:13,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-09 08:46:13,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:13,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2805 backedges. 0 proven. 2805 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:13,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073937502] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:13,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:13,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-09 08:46:13,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383315459] [2021-11-09 08:46:13,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-09 08:46:13,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:13,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-09 08:46:13,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:46:13,700 INFO L87 Difference]: Start difference. First operand 177 states and 177 transitions. Second operand has 36 states, 35 states have (on average 4.942857142857143) internal successors, (173), 36 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:13,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:13,782 INFO L93 Difference]: Finished difference Result 181 states and 181 transitions. [2021-11-09 08:46:13,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-09 08:46:13,782 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.942857142857143) internal successors, (173), 36 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2021-11-09 08:46:13,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:13,783 INFO L225 Difference]: With dead ends: 181 [2021-11-09 08:46:13,783 INFO L226 Difference]: Without dead ends: 180 [2021-11-09 08:46:13,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-09 08:46:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-09 08:46:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-09 08:46:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.0112359550561798) internal successors, (180), 179 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2021-11-09 08:46:13,792 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 173 [2021-11-09 08:46:13,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:13,792 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2021-11-09 08:46:13,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.942857142857143) internal successors, (173), 36 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2021-11-09 08:46:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-09 08:46:13,794 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:13,794 INFO L513 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 1, 1, 1, 1] [2021-11-09 08:46:13,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:14,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:14,007 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1508259109, now seen corresponding path program 34 times [2021-11-09 08:46:14,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:14,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869715655] [2021-11-09 08:46:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:14,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:14,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:14,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869715655] [2021-11-09 08:46:14,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869715655] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:14,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176658794] [2021-11-09 08:46:14,513 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:46:14,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:14,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:14,513 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:14,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-11-09 08:46:16,331 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:46:16,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:16,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:46:16,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:16,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:16,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176658794] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:16,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:16,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-09 08:46:16,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840264231] [2021-11-09 08:46:16,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-09 08:46:16,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:16,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-09 08:46:16,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:46:16,820 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:16,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:16,925 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2021-11-09 08:46:16,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 08:46:16,926 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-11-09 08:46:16,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:16,926 INFO L225 Difference]: With dead ends: 184 [2021-11-09 08:46:16,926 INFO L226 Difference]: Without dead ends: 183 [2021-11-09 08:46:16,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:46:16,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-09 08:46:16,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 182. [2021-11-09 08:46:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 1.011111111111111) internal successors, (182), 181 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:16,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 182 transitions. [2021-11-09 08:46:16,930 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 182 transitions. Word has length 175 [2021-11-09 08:46:16,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:16,930 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 182 transitions. [2021-11-09 08:46:16,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:16,931 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 182 transitions. [2021-11-09 08:46:16,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-09 08:46:16,931 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:16,932 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 34, 1, 1, 1, 1] [2021-11-09 08:46:16,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:17,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:17,147 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:17,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:17,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1400684817, now seen corresponding path program 34 times [2021-11-09 08:46:17,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:17,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972290357] [2021-11-09 08:46:17,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:17,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:17,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972290357] [2021-11-09 08:46:17,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972290357] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274041799] [2021-11-09 08:46:17,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:46:17,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:17,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:17,673 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:17,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-09 08:46:19,558 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:46:19,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:19,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-09 08:46:19,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:19,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 0 proven. 2975 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:19,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274041799] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:19,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:19,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-09 08:46:19,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098162363] [2021-11-09 08:46:19,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-09 08:46:19,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-09 08:46:19,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:46:19,984 INFO L87 Difference]: Start difference. First operand 182 states and 182 transitions. Second operand has 37 states, 36 states have (on average 4.944444444444445) internal successors, (178), 37 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:20,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:20,059 INFO L93 Difference]: Finished difference Result 186 states and 186 transitions. [2021-11-09 08:46:20,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 08:46:20,059 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.944444444444445) internal successors, (178), 37 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-09 08:46:20,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:20,061 INFO L225 Difference]: With dead ends: 186 [2021-11-09 08:46:20,061 INFO L226 Difference]: Without dead ends: 185 [2021-11-09 08:46:20,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 08:46:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-09 08:46:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2021-11-09 08:46:20,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 183 states have (on average 1.010928961748634) internal successors, (185), 184 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:20,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 185 transitions. [2021-11-09 08:46:20,067 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 185 transitions. Word has length 178 [2021-11-09 08:46:20,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:20,067 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 185 transitions. [2021-11-09 08:46:20,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.944444444444445) internal successors, (178), 37 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 185 transitions. [2021-11-09 08:46:20,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-09 08:46:20,068 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:20,069 INFO L513 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 1, 1, 1, 1] [2021-11-09 08:46:20,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:20,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-11-09 08:46:20,279 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:20,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:20,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1733344015, now seen corresponding path program 35 times [2021-11-09 08:46:20,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:20,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057997346] [2021-11-09 08:46:20,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:20,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:20,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:20,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:20,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057997346] [2021-11-09 08:46:20,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057997346] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:20,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253666024] [2021-11-09 08:46:20,917 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:46:20,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:20,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:20,918 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:20,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-09 08:46:23,011 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-09 08:46:23,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:23,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-09 08:46:23,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:23,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:23,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253666024] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:23,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:23,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-09 08:46:23,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300064580] [2021-11-09 08:46:23,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-09 08:46:23,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:23,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-09 08:46:23,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:46:23,522 INFO L87 Difference]: Start difference. First operand 185 states and 185 transitions. Second operand has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:23,607 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2021-11-09 08:46:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-09 08:46:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-11-09 08:46:23,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:23,609 INFO L225 Difference]: With dead ends: 189 [2021-11-09 08:46:23,609 INFO L226 Difference]: Without dead ends: 188 [2021-11-09 08:46:23,609 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:46:23,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-09 08:46:23,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2021-11-09 08:46:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.0108108108108107) internal successors, (187), 186 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2021-11-09 08:46:23,615 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 180 [2021-11-09 08:46:23,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:23,615 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2021-11-09 08:46:23,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:23,615 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2021-11-09 08:46:23,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-09 08:46:23,616 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:23,617 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 35, 1, 1, 1, 1] [2021-11-09 08:46:23,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:23,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:23,835 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:23,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:23,836 INFO L85 PathProgramCache]: Analyzing trace with hash 340298659, now seen corresponding path program 35 times [2021-11-09 08:46:23,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:23,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068454438] [2021-11-09 08:46:23,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:23,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 3150 backedges. 0 proven. 3150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:24,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:24,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068454438] [2021-11-09 08:46:24,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068454438] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:24,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858295386] [2021-11-09 08:46:24,419 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:46:24,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:24,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:24,420 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:24,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-11-09 08:46:26,536 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-09 08:46:26,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:26,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-09 08:46:26,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:27,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3150 backedges. 0 proven. 3150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:27,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858295386] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:27,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:27,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-09 08:46:27,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124650482] [2021-11-09 08:46:27,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-09 08:46:27,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:27,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-09 08:46:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:46:27,009 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 38 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:27,083 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2021-11-09 08:46:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-09 08:46:27,084 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 38 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-11-09 08:46:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:27,085 INFO L225 Difference]: With dead ends: 191 [2021-11-09 08:46:27,085 INFO L226 Difference]: Without dead ends: 190 [2021-11-09 08:46:27,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-09 08:46:27,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-09 08:46:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-09 08:46:27,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:27,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2021-11-09 08:46:27,089 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 183 [2021-11-09 08:46:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:27,089 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2021-11-09 08:46:27,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.945945945945946) internal successors, (183), 38 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2021-11-09 08:46:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-09 08:46:27,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:27,090 INFO L513 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 1, 1, 1, 1] [2021-11-09 08:46:27,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:27,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-11-09 08:46:27,291 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:27,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:27,291 INFO L85 PathProgramCache]: Analyzing trace with hash 609498277, now seen corresponding path program 36 times [2021-11-09 08:46:27,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:27,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265490268] [2021-11-09 08:46:27,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:27,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:27,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:27,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265490268] [2021-11-09 08:46:27,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265490268] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:27,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75154645] [2021-11-09 08:46:27,883 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:46:27,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:27,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:27,884 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:27,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-11-09 08:46:30,090 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-09 08:46:30,090 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:30,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-09 08:46:30,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:30,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75154645] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:30,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:30,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-09 08:46:30,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247129502] [2021-11-09 08:46:30,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-09 08:46:30,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-09 08:46:30,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:46:30,550 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:30,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:30,637 INFO L93 Difference]: Finished difference Result 194 states and 194 transitions. [2021-11-09 08:46:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-09 08:46:30,637 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-11-09 08:46:30,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:30,638 INFO L225 Difference]: With dead ends: 194 [2021-11-09 08:46:30,638 INFO L226 Difference]: Without dead ends: 193 [2021-11-09 08:46:30,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:46:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-09 08:46:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2021-11-09 08:46:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 190 states have (on average 1.0105263157894737) internal successors, (192), 191 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:30,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 192 transitions. [2021-11-09 08:46:30,645 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 192 transitions. Word has length 185 [2021-11-09 08:46:30,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:30,646 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 192 transitions. [2021-11-09 08:46:30,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:30,646 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 192 transitions. [2021-11-09 08:46:30,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-09 08:46:30,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:30,647 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 36, 1, 1, 1, 1] [2021-11-09 08:46:30,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:30,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-11-09 08:46:30,871 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:30,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:30,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1558507665, now seen corresponding path program 36 times [2021-11-09 08:46:30,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:30,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596711338] [2021-11-09 08:46:30,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:30,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 0 proven. 3330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:31,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:31,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596711338] [2021-11-09 08:46:31,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596711338] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:31,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437039379] [2021-11-09 08:46:31,464 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:46:31,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:31,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:31,465 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:31,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-09 08:46:33,738 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-09 08:46:33,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:33,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-09 08:46:33,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3330 backedges. 0 proven. 3330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:34,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437039379] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:34,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:34,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-09 08:46:34,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189319133] [2021-11-09 08:46:34,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-09 08:46:34,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:34,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-09 08:46:34,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:46:34,214 INFO L87 Difference]: Start difference. First operand 192 states and 192 transitions. Second operand has 39 states, 38 states have (on average 4.947368421052632) internal successors, (188), 39 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:34,296 INFO L93 Difference]: Finished difference Result 196 states and 196 transitions. [2021-11-09 08:46:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-09 08:46:34,297 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 4.947368421052632) internal successors, (188), 39 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-09 08:46:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:34,298 INFO L225 Difference]: With dead ends: 196 [2021-11-09 08:46:34,298 INFO L226 Difference]: Without dead ends: 195 [2021-11-09 08:46:34,298 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 08:46:34,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-09 08:46:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-11-09 08:46:34,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.0103626943005182) internal successors, (195), 194 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:34,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 195 transitions. [2021-11-09 08:46:34,302 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 195 transitions. Word has length 188 [2021-11-09 08:46:34,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:34,302 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 195 transitions. [2021-11-09 08:46:34,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.947368421052632) internal successors, (188), 39 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 195 transitions. [2021-11-09 08:46:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-09 08:46:34,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:34,304 INFO L513 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 1, 1, 1, 1] [2021-11-09 08:46:34,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:34,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:34,522 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:34,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:34,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1217721713, now seen corresponding path program 37 times [2021-11-09 08:46:34,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:34,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883006291] [2021-11-09 08:46:34,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:34,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:35,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:35,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883006291] [2021-11-09 08:46:35,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883006291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:35,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394336712] [2021-11-09 08:46:35,219 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:46:35,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:35,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:35,220 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:35,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-11-09 08:46:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:37,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-09 08:46:37,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:37,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:37,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394336712] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:37,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:37,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-09 08:46:37,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709675229] [2021-11-09 08:46:37,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-09 08:46:37,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:37,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-09 08:46:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:46:37,993 INFO L87 Difference]: Start difference. First operand 195 states and 195 transitions. Second operand has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:38,131 INFO L93 Difference]: Finished difference Result 199 states and 199 transitions. [2021-11-09 08:46:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-09 08:46:38,132 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-11-09 08:46:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:38,133 INFO L225 Difference]: With dead ends: 199 [2021-11-09 08:46:38,134 INFO L226 Difference]: Without dead ends: 198 [2021-11-09 08:46:38,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:46:38,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-09 08:46:38,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 197. [2021-11-09 08:46:38,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:38,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2021-11-09 08:46:38,141 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 190 [2021-11-09 08:46:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:38,141 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2021-11-09 08:46:38,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2021-11-09 08:46:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-09 08:46:38,143 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:38,144 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 37, 1, 1, 1, 1] [2021-11-09 08:46:38,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:38,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:38,359 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:38,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1853819683, now seen corresponding path program 37 times [2021-11-09 08:46:38,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:38,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471844966] [2021-11-09 08:46:38,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:38,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:39,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3515 backedges. 0 proven. 3515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:39,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:39,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471844966] [2021-11-09 08:46:39,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471844966] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:39,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757973912] [2021-11-09 08:46:39,008 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:46:39,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:39,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:39,009 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:39,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-09 08:46:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:41,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-09 08:46:41,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:41,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3515 backedges. 0 proven. 3515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:41,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757973912] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:41,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:41,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-09 08:46:41,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892447166] [2021-11-09 08:46:41,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-09 08:46:41,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:41,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-09 08:46:41,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:46:41,817 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand has 40 states, 39 states have (on average 4.948717948717949) internal successors, (193), 40 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:41,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:41,926 INFO L93 Difference]: Finished difference Result 201 states and 201 transitions. [2021-11-09 08:46:41,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-09 08:46:41,926 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.948717948717949) internal successors, (193), 40 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2021-11-09 08:46:41,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:41,928 INFO L225 Difference]: With dead ends: 201 [2021-11-09 08:46:41,928 INFO L226 Difference]: Without dead ends: 200 [2021-11-09 08:46:41,928 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 08:46:41,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-11-09 08:46:41,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2021-11-09 08:46:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 198 states have (on average 1.0101010101010102) internal successors, (200), 199 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 200 transitions. [2021-11-09 08:46:41,935 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 200 transitions. Word has length 193 [2021-11-09 08:46:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:41,935 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 200 transitions. [2021-11-09 08:46:41,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.948717948717949) internal successors, (193), 40 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 200 transitions. [2021-11-09 08:46:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-09 08:46:41,937 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:41,937 INFO L513 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 1, 1, 1, 1] [2021-11-09 08:46:41,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:42,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:42,159 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:42,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:42,160 INFO L85 PathProgramCache]: Analyzing trace with hash -890711003, now seen corresponding path program 38 times [2021-11-09 08:46:42,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:42,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818509545] [2021-11-09 08:46:42,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:42,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:42,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:42,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:42,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818509545] [2021-11-09 08:46:42,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818509545] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:42,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959454531] [2021-11-09 08:46:42,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:46:42,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:42,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:42,795 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:42,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-11-09 08:46:45,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:46:45,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:45,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-09 08:46:45,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:45,596 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:45,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959454531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:45,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:45,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-09 08:46:45,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536514447] [2021-11-09 08:46:45,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-09 08:46:45,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:45,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-09 08:46:45,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:46:45,598 INFO L87 Difference]: Start difference. First operand 200 states and 200 transitions. Second operand has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:45,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:45,687 INFO L93 Difference]: Finished difference Result 204 states and 204 transitions. [2021-11-09 08:46:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-09 08:46:45,687 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-11-09 08:46:45,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:45,688 INFO L225 Difference]: With dead ends: 204 [2021-11-09 08:46:45,688 INFO L226 Difference]: Without dead ends: 203 [2021-11-09 08:46:45,688 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:46:45,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-09 08:46:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 202. [2021-11-09 08:46:45,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 200 states have (on average 1.01) internal successors, (202), 201 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2021-11-09 08:46:45,695 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 195 [2021-11-09 08:46:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:45,695 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2021-11-09 08:46:45,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2021-11-09 08:46:45,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-09 08:46:45,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:45,697 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 38, 1, 1, 1, 1] [2021-11-09 08:46:45,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2021-11-09 08:46:45,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:45,919 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:45,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -863485969, now seen corresponding path program 38 times [2021-11-09 08:46:45,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:45,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805983488] [2021-11-09 08:46:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:45,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3705 backedges. 0 proven. 3705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:46,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:46,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805983488] [2021-11-09 08:46:46,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805983488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:46,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558893239] [2021-11-09 08:46:46,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:46:46,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:46,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:46,608 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:46,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-11-09 08:46:49,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:46:49,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:49,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-09 08:46:49,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3705 backedges. 0 proven. 3705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:49,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558893239] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:49,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:49,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-09 08:46:49,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464426559] [2021-11-09 08:46:49,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-09 08:46:49,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:49,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-09 08:46:49,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:46:49,504 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand has 41 states, 40 states have (on average 4.95) internal successors, (198), 41 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:49,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:49,600 INFO L93 Difference]: Finished difference Result 206 states and 206 transitions. [2021-11-09 08:46:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-09 08:46:49,601 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.95) internal successors, (198), 41 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 198 [2021-11-09 08:46:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:49,602 INFO L225 Difference]: With dead ends: 206 [2021-11-09 08:46:49,602 INFO L226 Difference]: Without dead ends: 205 [2021-11-09 08:46:49,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-09 08:46:49,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-11-09 08:46:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2021-11-09 08:46:49,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 203 states have (on average 1.0098522167487685) internal successors, (205), 204 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:49,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 205 transitions. [2021-11-09 08:46:49,608 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 205 transitions. Word has length 198 [2021-11-09 08:46:49,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:49,609 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 205 transitions. [2021-11-09 08:46:49,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.95) internal successors, (198), 41 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 205 transitions. [2021-11-09 08:46:49,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-11-09 08:46:49,610 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:49,610 INFO L513 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 1, 1, 1, 1] [2021-11-09 08:46:49,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-11-09 08:46:49,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:49,825 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash -881326607, now seen corresponding path program 39 times [2021-11-09 08:46:49,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:49,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342405217] [2021-11-09 08:46:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:49,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:50,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:50,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342405217] [2021-11-09 08:46:50,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342405217] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:50,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798797993] [2021-11-09 08:46:50,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:46:50,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:50,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:50,495 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:50,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-09 08:46:53,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-09 08:46:53,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:53,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-09 08:46:53,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:53,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798797993] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:53,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:53,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-09 08:46:53,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767812015] [2021-11-09 08:46:53,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-09 08:46:53,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:53,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-09 08:46:53,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 08:46:53,689 INFO L87 Difference]: Start difference. First operand 205 states and 205 transitions. Second operand has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:53,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:53,826 INFO L93 Difference]: Finished difference Result 209 states and 209 transitions. [2021-11-09 08:46:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-09 08:46:53,826 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-11-09 08:46:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:53,828 INFO L225 Difference]: With dead ends: 209 [2021-11-09 08:46:53,828 INFO L226 Difference]: Without dead ends: 208 [2021-11-09 08:46:53,829 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 08:46:53,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-09 08:46:53,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2021-11-09 08:46:53,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 205 states have (on average 1.0097560975609756) internal successors, (207), 206 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:53,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 207 transitions. [2021-11-09 08:46:53,836 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 207 transitions. Word has length 200 [2021-11-09 08:46:53,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:53,836 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 207 transitions. [2021-11-09 08:46:53,837 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:53,837 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 207 transitions. [2021-11-09 08:46:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-09 08:46:53,838 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:53,839 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 39, 1, 1, 1, 1] [2021-11-09 08:46:53,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-11-09 08:46:54,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-11-09 08:46:54,067 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:54,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:54,068 INFO L85 PathProgramCache]: Analyzing trace with hash -465818973, now seen corresponding path program 39 times [2021-11-09 08:46:54,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:54,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944104485] [2021-11-09 08:46:54,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:54,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3900 backedges. 0 proven. 3900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:54,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:54,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944104485] [2021-11-09 08:46:54,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944104485] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:54,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437093053] [2021-11-09 08:46:54,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:46:54,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:54,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:54,793 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:54,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-11-09 08:46:57,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-09 08:46:57,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:46:57,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-09 08:46:57,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:46:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3900 backedges. 0 proven. 3900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:58,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437093053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:58,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:46:58,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-09 08:46:58,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093502302] [2021-11-09 08:46:58,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-09 08:46:58,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:46:58,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-09 08:46:58,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 08:46:58,120 INFO L87 Difference]: Start difference. First operand 207 states and 207 transitions. Second operand has 42 states, 41 states have (on average 4.951219512195122) internal successors, (203), 42 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:46:58,219 INFO L93 Difference]: Finished difference Result 211 states and 211 transitions. [2021-11-09 08:46:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-09 08:46:58,219 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.951219512195122) internal successors, (203), 42 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2021-11-09 08:46:58,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:46:58,221 INFO L225 Difference]: With dead ends: 211 [2021-11-09 08:46:58,221 INFO L226 Difference]: Without dead ends: 210 [2021-11-09 08:46:58,221 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-09 08:46:58,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-11-09 08:46:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2021-11-09 08:46:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 1.0096153846153846) internal successors, (210), 209 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2021-11-09 08:46:58,226 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 203 [2021-11-09 08:46:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:46:58,226 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2021-11-09 08:46:58,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.951219512195122) internal successors, (203), 42 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:46:58,227 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2021-11-09 08:46:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-09 08:46:58,228 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:46:58,228 INFO L513 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 1, 1, 1, 1] [2021-11-09 08:46:58,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-11-09 08:46:58,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:58,431 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:46:58,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:46:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -975432795, now seen corresponding path program 40 times [2021-11-09 08:46:58,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:46:58,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487520575] [2021-11-09 08:46:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:46:58,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:46:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:46:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:46:59,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:46:59,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487520575] [2021-11-09 08:46:59,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487520575] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:46:59,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460533950] [2021-11-09 08:46:59,200 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:46:59,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:46:59,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:46:59,201 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:46:59,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-11-09 08:47:01,802 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:47:01,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:01,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 08:47:01,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:02,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:02,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460533950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:02,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:02,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-09 08:47:02,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126331611] [2021-11-09 08:47:02,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-09 08:47:02,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:02,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-09 08:47:02,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 08:47:02,304 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:02,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:02,398 INFO L93 Difference]: Finished difference Result 214 states and 214 transitions. [2021-11-09 08:47:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-09 08:47:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2021-11-09 08:47:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:02,399 INFO L225 Difference]: With dead ends: 214 [2021-11-09 08:47:02,399 INFO L226 Difference]: Without dead ends: 213 [2021-11-09 08:47:02,400 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 08:47:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-11-09 08:47:02,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 212. [2021-11-09 08:47:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.0095238095238095) internal successors, (212), 211 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 212 transitions. [2021-11-09 08:47:02,407 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 212 transitions. Word has length 205 [2021-11-09 08:47:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:02,407 INFO L470 AbstractCegarLoop]: Abstraction has 212 states and 212 transitions. [2021-11-09 08:47:02,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:02,407 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 212 transitions. [2021-11-09 08:47:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-09 08:47:02,409 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:02,409 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 40, 1, 1, 1, 1] [2021-11-09 08:47:02,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-11-09 08:47:02,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:02,619 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 630378607, now seen corresponding path program 40 times [2021-11-09 08:47:02,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:02,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120691980] [2021-11-09 08:47:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:02,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:03,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4100 backedges. 0 proven. 4100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:03,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:03,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120691980] [2021-11-09 08:47:03,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120691980] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:03,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790998548] [2021-11-09 08:47:03,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:47:03,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:03,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:03,543 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:03,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-09 08:47:06,292 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:47:06,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:06,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-09 08:47:06,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:06,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4100 backedges. 0 proven. 4100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:06,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790998548] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:06,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:06,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-09 08:47:06,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417539360] [2021-11-09 08:47:06,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-09 08:47:06,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:06,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-09 08:47:06,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 08:47:06,950 INFO L87 Difference]: Start difference. First operand 212 states and 212 transitions. Second operand has 43 states, 42 states have (on average 4.9523809523809526) internal successors, (208), 43 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:07,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:07,061 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2021-11-09 08:47:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-09 08:47:07,061 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 4.9523809523809526) internal successors, (208), 43 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 208 [2021-11-09 08:47:07,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:07,063 INFO L225 Difference]: With dead ends: 216 [2021-11-09 08:47:07,063 INFO L226 Difference]: Without dead ends: 215 [2021-11-09 08:47:07,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-09 08:47:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-11-09 08:47:07,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-11-09 08:47:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 215 transitions. [2021-11-09 08:47:07,070 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 215 transitions. Word has length 208 [2021-11-09 08:47:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:07,070 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 215 transitions. [2021-11-09 08:47:07,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 4.9523809523809526) internal successors, (208), 43 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 215 transitions. [2021-11-09 08:47:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-11-09 08:47:07,071 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:07,072 INFO L513 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 1, 1, 1, 1] [2021-11-09 08:47:07,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:07,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-11-09 08:47:07,272 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:07,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash 203454065, now seen corresponding path program 41 times [2021-11-09 08:47:07,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:07,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700813872] [2021-11-09 08:47:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:07,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:08,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:08,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700813872] [2021-11-09 08:47:08,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700813872] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:08,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366158345] [2021-11-09 08:47:08,055 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:47:08,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:08,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:08,056 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:08,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-11-09 08:47:11,031 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-09 08:47:11,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:11,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-09 08:47:11,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:11,529 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:11,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366158345] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:11,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:11,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-09 08:47:11,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408583252] [2021-11-09 08:47:11,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-09 08:47:11,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:11,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-09 08:47:11,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 08:47:11,532 INFO L87 Difference]: Start difference. First operand 215 states and 215 transitions. Second operand has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:11,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:11,655 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2021-11-09 08:47:11,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-09 08:47:11,655 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-11-09 08:47:11,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:11,656 INFO L225 Difference]: With dead ends: 219 [2021-11-09 08:47:11,656 INFO L226 Difference]: Without dead ends: 218 [2021-11-09 08:47:11,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 08:47:11,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-09 08:47:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 217. [2021-11-09 08:47:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 215 states have (on average 1.0093023255813953) internal successors, (217), 216 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:11,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 217 transitions. [2021-11-09 08:47:11,667 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 217 transitions. Word has length 210 [2021-11-09 08:47:11,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:11,667 INFO L470 AbstractCegarLoop]: Abstraction has 217 states and 217 transitions. [2021-11-09 08:47:11,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 217 transitions. [2021-11-09 08:47:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-09 08:47:11,669 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:11,669 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 41, 1, 1, 1, 1] [2021-11-09 08:47:11,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:11,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:11,895 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:11,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:11,896 INFO L85 PathProgramCache]: Analyzing trace with hash 901245475, now seen corresponding path program 41 times [2021-11-09 08:47:11,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:11,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601181051] [2021-11-09 08:47:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:11,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 4305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:12,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:12,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601181051] [2021-11-09 08:47:12,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601181051] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:12,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205008636] [2021-11-09 08:47:12,787 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:47:12,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:12,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:12,788 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:12,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-11-09 08:47:15,868 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-09 08:47:15,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:15,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-09 08:47:15,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4305 backedges. 0 proven. 4305 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:16,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205008636] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:16,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:16,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-09 08:47:16,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862785418] [2021-11-09 08:47:16,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-09 08:47:16,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-09 08:47:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 08:47:16,397 INFO L87 Difference]: Start difference. First operand 217 states and 217 transitions. Second operand has 44 states, 43 states have (on average 4.953488372093023) internal successors, (213), 44 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:16,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:16,490 INFO L93 Difference]: Finished difference Result 221 states and 221 transitions. [2021-11-09 08:47:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-09 08:47:16,491 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.953488372093023) internal successors, (213), 44 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-11-09 08:47:16,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:16,492 INFO L225 Difference]: With dead ends: 221 [2021-11-09 08:47:16,492 INFO L226 Difference]: Without dead ends: 220 [2021-11-09 08:47:16,492 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-09 08:47:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-09 08:47:16,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-09 08:47:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.0091743119266054) internal successors, (220), 219 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 220 transitions. [2021-11-09 08:47:16,497 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 220 transitions. Word has length 213 [2021-11-09 08:47:16,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:16,497 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 220 transitions. [2021-11-09 08:47:16,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.953488372093023) internal successors, (213), 44 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:16,497 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 220 transitions. [2021-11-09 08:47:16,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-09 08:47:16,498 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:16,499 INFO L513 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 1, 1, 1, 1] [2021-11-09 08:47:16,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-11-09 08:47:16,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:16,699 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:16,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1486490843, now seen corresponding path program 42 times [2021-11-09 08:47:16,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:16,700 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30578058] [2021-11-09 08:47:16,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:16,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:17,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:17,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30578058] [2021-11-09 08:47:17,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30578058] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:17,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023548213] [2021-11-09 08:47:17,515 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:47:17,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:17,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:17,516 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:17,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-09 08:47:20,858 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-09 08:47:20,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:20,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-09 08:47:20,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:21,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:21,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023548213] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:21,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:21,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-09 08:47:21,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268673666] [2021-11-09 08:47:21,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-09 08:47:21,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-09 08:47:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 08:47:21,379 INFO L87 Difference]: Start difference. First operand 220 states and 220 transitions. Second operand has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:21,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:21,495 INFO L93 Difference]: Finished difference Result 224 states and 224 transitions. [2021-11-09 08:47:21,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-09 08:47:21,495 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-11-09 08:47:21,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:21,496 INFO L225 Difference]: With dead ends: 224 [2021-11-09 08:47:21,496 INFO L226 Difference]: Without dead ends: 223 [2021-11-09 08:47:21,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 08:47:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-09 08:47:21,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 222. [2021-11-09 08:47:21,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.009090909090909) internal successors, (222), 221 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:21,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2021-11-09 08:47:21,523 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 215 [2021-11-09 08:47:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:21,523 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2021-11-09 08:47:21,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:21,523 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2021-11-09 08:47:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-11-09 08:47:21,524 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:21,524 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 42, 1, 1, 1, 1] [2021-11-09 08:47:21,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-11-09 08:47:21,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:21,725 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:21,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:21,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1359134959, now seen corresponding path program 42 times [2021-11-09 08:47:21,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:21,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873725136] [2021-11-09 08:47:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:21,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:22,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:22,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873725136] [2021-11-09 08:47:22,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873725136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:22,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232517626] [2021-11-09 08:47:22,557 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:47:22,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:22,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:22,559 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:22,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-11-09 08:47:25,975 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-09 08:47:25,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:25,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-09 08:47:25,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4515 backedges. 0 proven. 4515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:26,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232517626] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:26,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:26,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-09 08:47:26,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998832807] [2021-11-09 08:47:26,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-09 08:47:26,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-09 08:47:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 08:47:26,671 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand has 45 states, 44 states have (on average 4.954545454545454) internal successors, (218), 45 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:26,825 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2021-11-09 08:47:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-09 08:47:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 4.954545454545454) internal successors, (218), 45 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-11-09 08:47:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:26,827 INFO L225 Difference]: With dead ends: 226 [2021-11-09 08:47:26,827 INFO L226 Difference]: Without dead ends: 225 [2021-11-09 08:47:26,828 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-09 08:47:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-09 08:47:26,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-09 08:47:26,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 1.0089686098654709) internal successors, (225), 224 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:26,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 225 transitions. [2021-11-09 08:47:26,835 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 225 transitions. Word has length 218 [2021-11-09 08:47:26,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:26,835 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 225 transitions. [2021-11-09 08:47:26,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 4.954545454545454) internal successors, (218), 45 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:26,836 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 225 transitions. [2021-11-09 08:47:26,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-09 08:47:26,837 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:26,837 INFO L513 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 1, 1, 1, 1] [2021-11-09 08:47:26,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:27,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:27,063 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash 458639089, now seen corresponding path program 43 times [2021-11-09 08:47:27,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:27,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006515992] [2021-11-09 08:47:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:27,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:28,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:28,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006515992] [2021-11-09 08:47:28,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006515992] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:28,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049275670] [2021-11-09 08:47:28,025 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:47:28,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:28,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:28,026 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:28,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-11-09 08:47:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:30,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-09 08:47:30,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:31,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:31,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049275670] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:31,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:31,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-09 08:47:31,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119961348] [2021-11-09 08:47:31,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-09 08:47:31,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-09 08:47:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 08:47:31,496 INFO L87 Difference]: Start difference. First operand 225 states and 225 transitions. Second operand has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:31,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:31,642 INFO L93 Difference]: Finished difference Result 229 states and 229 transitions. [2021-11-09 08:47:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-09 08:47:31,642 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-11-09 08:47:31,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:31,643 INFO L225 Difference]: With dead ends: 229 [2021-11-09 08:47:31,643 INFO L226 Difference]: Without dead ends: 228 [2021-11-09 08:47:31,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 08:47:31,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-09 08:47:31,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 227. [2021-11-09 08:47:31,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 225 states have (on average 1.008888888888889) internal successors, (227), 226 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:31,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 227 transitions. [2021-11-09 08:47:31,648 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 227 transitions. Word has length 220 [2021-11-09 08:47:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:31,648 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 227 transitions. [2021-11-09 08:47:31,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:31,649 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 227 transitions. [2021-11-09 08:47:31,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-09 08:47:31,650 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:31,650 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 43, 1, 1, 1, 1] [2021-11-09 08:47:31,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:31,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:31,871 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:31,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:31,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1026181539, now seen corresponding path program 43 times [2021-11-09 08:47:31,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:31,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253780105] [2021-11-09 08:47:31,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:31,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:32,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 0 proven. 4730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:32,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:32,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253780105] [2021-11-09 08:47:32,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253780105] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:32,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002005142] [2021-11-09 08:47:32,745 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:47:32,745 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:32,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:32,745 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:32,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-09 08:47:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:35,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-09 08:47:35,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:36,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 0 proven. 4730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:36,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002005142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:36,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:36,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-09 08:47:36,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886468841] [2021-11-09 08:47:36,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-09 08:47:36,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:36,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-09 08:47:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 08:47:36,300 INFO L87 Difference]: Start difference. First operand 227 states and 227 transitions. Second operand has 46 states, 45 states have (on average 4.955555555555556) internal successors, (223), 46 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:36,403 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2021-11-09 08:47:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-09 08:47:36,403 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.955555555555556) internal successors, (223), 46 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2021-11-09 08:47:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:36,405 INFO L225 Difference]: With dead ends: 231 [2021-11-09 08:47:36,405 INFO L226 Difference]: Without dead ends: 230 [2021-11-09 08:47:36,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-09 08:47:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-09 08:47:36,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 230. [2021-11-09 08:47:36,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 228 states have (on average 1.0087719298245614) internal successors, (230), 229 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 230 transitions. [2021-11-09 08:47:36,410 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 230 transitions. Word has length 223 [2021-11-09 08:47:36,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:36,410 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 230 transitions. [2021-11-09 08:47:36,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.955555555555556) internal successors, (223), 46 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:36,411 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 230 transitions. [2021-11-09 08:47:36,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-09 08:47:36,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:36,412 INFO L513 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 1, 1, 1, 1] [2021-11-09 08:47:36,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:36,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:36,626 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:36,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1682017627, now seen corresponding path program 44 times [2021-11-09 08:47:36,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:36,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906961859] [2021-11-09 08:47:36,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:36,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:37,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:37,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906961859] [2021-11-09 08:47:37,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906961859] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:37,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389924567] [2021-11-09 08:47:37,579 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:47:37,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:37,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:37,580 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:37,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-11-09 08:47:40,916 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:47:40,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:40,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 08:47:40,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:41,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389924567] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:41,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:41,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-09 08:47:41,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338829119] [2021-11-09 08:47:41,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-09 08:47:41,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:41,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-09 08:47:41,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 08:47:41,453 INFO L87 Difference]: Start difference. First operand 230 states and 230 transitions. Second operand has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:41,557 INFO L93 Difference]: Finished difference Result 234 states and 234 transitions. [2021-11-09 08:47:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-09 08:47:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-11-09 08:47:41,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:41,559 INFO L225 Difference]: With dead ends: 234 [2021-11-09 08:47:41,559 INFO L226 Difference]: Without dead ends: 233 [2021-11-09 08:47:41,559 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 08:47:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-09 08:47:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 232. [2021-11-09 08:47:41,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.008695652173913) internal successors, (232), 231 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:41,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2021-11-09 08:47:41,563 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 225 [2021-11-09 08:47:41,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:41,564 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2021-11-09 08:47:41,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:41,564 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2021-11-09 08:47:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-09 08:47:41,565 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:41,565 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 44, 1, 1, 1, 1] [2021-11-09 08:47:41,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:41,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2021-11-09 08:47:41,765 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:41,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:41,766 INFO L85 PathProgramCache]: Analyzing trace with hash 396366191, now seen corresponding path program 44 times [2021-11-09 08:47:41,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:41,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518627965] [2021-11-09 08:47:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:41,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:42,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:42,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:42,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518627965] [2021-11-09 08:47:42,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518627965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:42,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917591504] [2021-11-09 08:47:42,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:47:42,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:42,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:42,625 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:42,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-11-09 08:47:45,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:47:45,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:45,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-09 08:47:45,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:46,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4950 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:46,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917591504] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:46,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:46,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-09 08:47:46,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996898707] [2021-11-09 08:47:46,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-09 08:47:46,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:46,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-09 08:47:46,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 08:47:46,430 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand has 47 states, 46 states have (on average 4.956521739130435) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:46,604 INFO L93 Difference]: Finished difference Result 236 states and 236 transitions. [2021-11-09 08:47:46,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-09 08:47:46,605 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 4.956521739130435) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 228 [2021-11-09 08:47:46,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:46,607 INFO L225 Difference]: With dead ends: 236 [2021-11-09 08:47:46,608 INFO L226 Difference]: Without dead ends: 235 [2021-11-09 08:47:46,608 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-09 08:47:46,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-11-09 08:47:46,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-11-09 08:47:46,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 233 states have (on average 1.0085836909871244) internal successors, (235), 234 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:46,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 235 transitions. [2021-11-09 08:47:46,617 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 235 transitions. Word has length 228 [2021-11-09 08:47:46,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:46,617 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 235 transitions. [2021-11-09 08:47:46,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 4.956521739130435) internal successors, (228), 47 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:46,618 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 235 transitions. [2021-11-09 08:47:46,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-09 08:47:46,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:46,620 INFO L513 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 1, 1, 1, 1] [2021-11-09 08:47:46,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:46,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:46,847 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:46,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1344178319, now seen corresponding path program 45 times [2021-11-09 08:47:46,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:46,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680313001] [2021-11-09 08:47:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:46,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:46,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:47,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:47,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:47,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680313001] [2021-11-09 08:47:47,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680313001] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:47,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116511199] [2021-11-09 08:47:47,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:47:47,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:47,932 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:47,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-09 08:47:51,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-09 08:47:51,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:51,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-09 08:47:51,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:52,020 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:52,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116511199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:52,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:52,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-09 08:47:52,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418610465] [2021-11-09 08:47:52,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-09 08:47:52,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:52,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-09 08:47:52,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 08:47:52,023 INFO L87 Difference]: Start difference. First operand 235 states and 235 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:52,152 INFO L93 Difference]: Finished difference Result 239 states and 239 transitions. [2021-11-09 08:47:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-09 08:47:52,153 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-09 08:47:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:52,154 INFO L225 Difference]: With dead ends: 239 [2021-11-09 08:47:52,154 INFO L226 Difference]: Without dead ends: 238 [2021-11-09 08:47:52,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 08:47:52,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-09 08:47:52,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2021-11-09 08:47:52,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 235 states have (on average 1.0085106382978724) internal successors, (237), 236 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:52,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2021-11-09 08:47:52,161 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 230 [2021-11-09 08:47:52,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:52,162 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2021-11-09 08:47:52,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2021-11-09 08:47:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-09 08:47:52,164 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:52,164 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 45, 1, 1, 1, 1] [2021-11-09 08:47:52,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:52,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:52,379 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:52,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:52,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1858816291, now seen corresponding path program 45 times [2021-11-09 08:47:52,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:52,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408379944] [2021-11-09 08:47:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:52,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5175 backedges. 0 proven. 5175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:53,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:53,411 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408379944] [2021-11-09 08:47:53,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408379944] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:53,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584076272] [2021-11-09 08:47:53,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:47:53,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:53,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:53,412 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:53,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-11-09 08:47:57,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-09 08:47:57,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:47:57,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-09 08:47:57,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:47:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 5175 backedges. 0 proven. 5175 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:57,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584076272] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:57,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:47:57,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-09 08:47:57,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074278859] [2021-11-09 08:47:57,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-09 08:47:57,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:47:57,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-09 08:47:57,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 08:47:57,753 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand has 48 states, 47 states have (on average 4.957446808510638) internal successors, (233), 48 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:47:57,888 INFO L93 Difference]: Finished difference Result 241 states and 241 transitions. [2021-11-09 08:47:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-09 08:47:57,888 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.957446808510638) internal successors, (233), 48 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2021-11-09 08:47:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:47:57,890 INFO L225 Difference]: With dead ends: 241 [2021-11-09 08:47:57,890 INFO L226 Difference]: Without dead ends: 240 [2021-11-09 08:47:57,891 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 08:47:57,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-09 08:47:57,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2021-11-09 08:47:57,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.0084033613445378) internal successors, (240), 239 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2021-11-09 08:47:57,897 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 233 [2021-11-09 08:47:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:47:57,897 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2021-11-09 08:47:57,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.957446808510638) internal successors, (233), 48 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:47:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2021-11-09 08:47:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-09 08:47:57,899 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:47:57,899 INFO L513 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-11-09 08:47:57,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-11-09 08:47:58,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-11-09 08:47:58,100 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:47:58,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:47:58,100 INFO L85 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 46 times [2021-11-09 08:47:58,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:47:58,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507071223] [2021-11-09 08:47:58,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:47:58,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:47:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:47:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:47:59,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:47:59,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507071223] [2021-11-09 08:47:59,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507071223] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:47:59,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945971812] [2021-11-09 08:47:59,257 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:47:59,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:47:59,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:47:59,258 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:47:59,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-11-09 08:48:02,712 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:48:02,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:02,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-09 08:48:02,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:03,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945971812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:03,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:03,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-09 08:48:03,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310365177] [2021-11-09 08:48:03,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-09 08:48:03,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:03,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-09 08:48:03,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 08:48:03,305 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:03,422 INFO L93 Difference]: Finished difference Result 244 states and 244 transitions. [2021-11-09 08:48:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-09 08:48:03,422 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2021-11-09 08:48:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:03,424 INFO L225 Difference]: With dead ends: 244 [2021-11-09 08:48:03,424 INFO L226 Difference]: Without dead ends: 243 [2021-11-09 08:48:03,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 08:48:03,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-09 08:48:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 242. [2021-11-09 08:48:03,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 240 states have (on average 1.0083333333333333) internal successors, (242), 241 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 242 transitions. [2021-11-09 08:48:03,470 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 242 transitions. Word has length 235 [2021-11-09 08:48:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:03,470 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 242 transitions. [2021-11-09 08:48:03,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 242 transitions. [2021-11-09 08:48:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-09 08:48:03,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:03,473 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2021-11-09 08:48:03,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2021-11-09 08:48:03,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:03,679 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 46 times [2021-11-09 08:48:03,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:03,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389267348] [2021-11-09 08:48:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:03,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:04,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:04,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389267348] [2021-11-09 08:48:04,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389267348] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:04,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398834619] [2021-11-09 08:48:04,629 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:48:04,629 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:04,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:04,633 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:04,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-11-09 08:48:08,551 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:48:08,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:08,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-09 08:48:08,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:09,289 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:09,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398834619] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:09,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:09,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-09 08:48:09,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028954763] [2021-11-09 08:48:09,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-09 08:48:09,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:09,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-09 08:48:09,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 08:48:09,291 INFO L87 Difference]: Start difference. First operand 242 states and 242 transitions. Second operand has 49 states, 48 states have (on average 4.958333333333333) internal successors, (238), 49 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:09,420 INFO L93 Difference]: Finished difference Result 246 states and 246 transitions. [2021-11-09 08:48:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-09 08:48:09,421 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 4.958333333333333) internal successors, (238), 49 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2021-11-09 08:48:09,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:09,422 INFO L225 Difference]: With dead ends: 246 [2021-11-09 08:48:09,423 INFO L226 Difference]: Without dead ends: 245 [2021-11-09 08:48:09,423 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-09 08:48:09,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-11-09 08:48:09,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2021-11-09 08:48:09,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 243 states have (on average 1.008230452674897) internal successors, (245), 244 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:09,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 245 transitions. [2021-11-09 08:48:09,431 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 245 transitions. Word has length 238 [2021-11-09 08:48:09,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:09,431 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 245 transitions. [2021-11-09 08:48:09,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.958333333333333) internal successors, (238), 49 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 245 transitions. [2021-11-09 08:48:09,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-11-09 08:48:09,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:09,434 INFO L513 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 1, 1, 1, 1] [2021-11-09 08:48:09,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2021-11-09 08:48:09,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-11-09 08:48:09,639 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:09,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1500903439, now seen corresponding path program 47 times [2021-11-09 08:48:09,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:09,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774332488] [2021-11-09 08:48:09,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:09,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:10,720 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:10,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774332488] [2021-11-09 08:48:10,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774332488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:10,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575934483] [2021-11-09 08:48:10,720 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:48:10,720 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:10,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:10,721 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:10,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-11-09 08:48:14,734 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-09 08:48:14,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:14,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-09 08:48:14,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:15,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575934483] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:15,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:15,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-09 08:48:15,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658437948] [2021-11-09 08:48:15,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-09 08:48:15,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-09 08:48:15,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 08:48:15,406 INFO L87 Difference]: Start difference. First operand 245 states and 245 transitions. Second operand has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:15,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:15,534 INFO L93 Difference]: Finished difference Result 249 states and 249 transitions. [2021-11-09 08:48:15,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-09 08:48:15,535 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-11-09 08:48:15,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:15,536 INFO L225 Difference]: With dead ends: 249 [2021-11-09 08:48:15,536 INFO L226 Difference]: Without dead ends: 248 [2021-11-09 08:48:15,536 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 08:48:15,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-09 08:48:15,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2021-11-09 08:48:15,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 245 states have (on average 1.0081632653061225) internal successors, (247), 246 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2021-11-09 08:48:15,544 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 240 [2021-11-09 08:48:15,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:15,544 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 247 transitions. [2021-11-09 08:48:15,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:15,545 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 247 transitions. [2021-11-09 08:48:15,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-09 08:48:15,546 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:15,546 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 47, 1, 1, 1, 1] [2021-11-09 08:48:15,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-11-09 08:48:15,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-11-09 08:48:15,759 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:15,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:15,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1490217123, now seen corresponding path program 47 times [2021-11-09 08:48:15,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:15,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727718932] [2021-11-09 08:48:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:15,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 5640 backedges. 0 proven. 5640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:17,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:17,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727718932] [2021-11-09 08:48:17,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727718932] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:17,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620205144] [2021-11-09 08:48:17,015 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:48:17,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:17,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:17,016 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:17,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-11-09 08:48:21,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-09 08:48:21,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:21,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-09 08:48:21,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:22,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5640 backedges. 0 proven. 5640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:22,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620205144] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:22,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:22,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-09 08:48:22,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998990313] [2021-11-09 08:48:22,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-09 08:48:22,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:22,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-09 08:48:22,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 08:48:22,146 INFO L87 Difference]: Start difference. First operand 247 states and 247 transitions. Second operand has 50 states, 49 states have (on average 4.959183673469388) internal successors, (243), 50 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:22,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:22,279 INFO L93 Difference]: Finished difference Result 251 states and 251 transitions. [2021-11-09 08:48:22,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-09 08:48:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.959183673469388) internal successors, (243), 50 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2021-11-09 08:48:22,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:22,287 INFO L225 Difference]: With dead ends: 251 [2021-11-09 08:48:22,287 INFO L226 Difference]: Without dead ends: 250 [2021-11-09 08:48:22,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 08:48:22,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-09 08:48:22,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-11-09 08:48:22,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 1.0080645161290323) internal successors, (250), 249 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2021-11-09 08:48:22,295 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 243 [2021-11-09 08:48:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:22,296 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2021-11-09 08:48:22,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.959183673469388) internal successors, (243), 50 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:22,296 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2021-11-09 08:48:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-09 08:48:22,297 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:22,298 INFO L513 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 1, 1, 1, 1] [2021-11-09 08:48:22,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-11-09 08:48:22,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:22,523 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:22,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1874547109, now seen corresponding path program 48 times [2021-11-09 08:48:22,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:22,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135472354] [2021-11-09 08:48:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:22,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:22,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:23,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:23,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135472354] [2021-11-09 08:48:23,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135472354] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:23,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961552930] [2021-11-09 08:48:23,706 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:48:23,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:23,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:23,707 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:23,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-11-09 08:48:28,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-09 08:48:28,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:28,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-09 08:48:28,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:28,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961552930] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:28,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:28,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-09 08:48:28,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786729209] [2021-11-09 08:48:28,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-09 08:48:28,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:28,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-09 08:48:28,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 08:48:28,871 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:29,010 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2021-11-09 08:48:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 08:48:29,010 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-11-09 08:48:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:29,011 INFO L225 Difference]: With dead ends: 254 [2021-11-09 08:48:29,011 INFO L226 Difference]: Without dead ends: 253 [2021-11-09 08:48:29,011 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 08:48:29,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-09 08:48:29,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 252. [2021-11-09 08:48:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 250 states have (on average 1.008) internal successors, (252), 251 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 252 transitions. [2021-11-09 08:48:29,016 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 252 transitions. Word has length 245 [2021-11-09 08:48:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:29,016 INFO L470 AbstractCegarLoop]: Abstraction has 252 states and 252 transitions. [2021-11-09 08:48:29,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 252 transitions. [2021-11-09 08:48:29,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-09 08:48:29,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:29,018 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 48, 1, 1, 1, 1] [2021-11-09 08:48:29,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-11-09 08:48:29,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:29,218 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1468191343, now seen corresponding path program 48 times [2021-11-09 08:48:29,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:29,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489369472] [2021-11-09 08:48:29,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:29,219 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:30,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:30,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489369472] [2021-11-09 08:48:30,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489369472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:30,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059219981] [2021-11-09 08:48:30,334 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:48:30,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:30,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:30,335 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:30,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-11-09 08:48:34,827 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-09 08:48:34,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:34,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-09 08:48:34,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 5880 backedges. 0 proven. 5880 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:35,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059219981] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:35,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:35,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-09 08:48:35,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807160141] [2021-11-09 08:48:35,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-09 08:48:35,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-09 08:48:35,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 08:48:35,586 INFO L87 Difference]: Start difference. First operand 252 states and 252 transitions. Second operand has 51 states, 50 states have (on average 4.96) internal successors, (248), 51 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:35,709 INFO L93 Difference]: Finished difference Result 256 states and 256 transitions. [2021-11-09 08:48:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-09 08:48:35,710 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 4.96) internal successors, (248), 51 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-11-09 08:48:35,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:35,711 INFO L225 Difference]: With dead ends: 256 [2021-11-09 08:48:35,711 INFO L226 Difference]: Without dead ends: 255 [2021-11-09 08:48:35,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 08:48:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-09 08:48:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-11-09 08:48:35,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 253 states have (on average 1.007905138339921) internal successors, (255), 254 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2021-11-09 08:48:35,716 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 248 [2021-11-09 08:48:35,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:35,716 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 255 transitions. [2021-11-09 08:48:35,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 4.96) internal successors, (248), 51 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:35,717 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 255 transitions. [2021-11-09 08:48:35,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-09 08:48:35,718 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:35,718 INFO L513 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 1, 1, 1, 1] [2021-11-09 08:48:35,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-11-09 08:48:35,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-11-09 08:48:35,918 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:35,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2112358287, now seen corresponding path program 49 times [2021-11-09 08:48:35,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:35,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055064210] [2021-11-09 08:48:35,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:35,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:37,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:37,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055064210] [2021-11-09 08:48:37,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055064210] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:37,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630261735] [2021-11-09 08:48:37,128 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:48:37,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:37,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:37,129 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:37,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-11-09 08:48:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:41,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-09 08:48:41,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:42,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:42,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630261735] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:42,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:42,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-09 08:48:42,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957337924] [2021-11-09 08:48:42,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-09 08:48:42,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:42,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-09 08:48:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 08:48:42,038 INFO L87 Difference]: Start difference. First operand 255 states and 255 transitions. Second operand has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:42,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:42,229 INFO L93 Difference]: Finished difference Result 259 states and 259 transitions. [2021-11-09 08:48:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-09 08:48:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-11-09 08:48:42,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:42,230 INFO L225 Difference]: With dead ends: 259 [2021-11-09 08:48:42,230 INFO L226 Difference]: Without dead ends: 258 [2021-11-09 08:48:42,231 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 08:48:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-09 08:48:42,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2021-11-09 08:48:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 1.007843137254902) internal successors, (257), 256 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 257 transitions. [2021-11-09 08:48:42,244 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 257 transitions. Word has length 250 [2021-11-09 08:48:42,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:42,245 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 257 transitions. [2021-11-09 08:48:42,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 257 transitions. [2021-11-09 08:48:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-09 08:48:42,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:42,247 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 49, 1, 1, 1, 1] [2021-11-09 08:48:42,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-11-09 08:48:42,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-11-09 08:48:42,452 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash 595142691, now seen corresponding path program 49 times [2021-11-09 08:48:42,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:42,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720342876] [2021-11-09 08:48:42,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:42,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:43,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6125 backedges. 0 proven. 6125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:43,791 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:43,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720342876] [2021-11-09 08:48:43,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720342876] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:43,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923310296] [2021-11-09 08:48:43,792 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:48:43,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:43,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:43,793 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:43,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-11-09 08:48:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:48,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-09 08:48:48,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:49,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6125 backedges. 0 proven. 6125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:49,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923310296] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:49,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:49,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-09 08:48:49,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493769505] [2021-11-09 08:48:49,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-09 08:48:49,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:49,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-09 08:48:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 08:48:49,070 INFO L87 Difference]: Start difference. First operand 257 states and 257 transitions. Second operand has 52 states, 51 states have (on average 4.96078431372549) internal successors, (253), 52 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:49,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:49,209 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2021-11-09 08:48:49,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-09 08:48:49,210 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.96078431372549) internal successors, (253), 52 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-11-09 08:48:49,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:49,211 INFO L225 Difference]: With dead ends: 261 [2021-11-09 08:48:49,211 INFO L226 Difference]: Without dead ends: 260 [2021-11-09 08:48:49,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-09 08:48:49,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-09 08:48:49,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-11-09 08:48:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 258 states have (on average 1.0077519379844961) internal successors, (260), 259 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:49,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2021-11-09 08:48:49,219 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 253 [2021-11-09 08:48:49,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:49,219 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2021-11-09 08:48:49,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.96078431372549) internal successors, (253), 52 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:49,220 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2021-11-09 08:48:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-09 08:48:49,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:49,221 INFO L513 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 1, 1, 1, 1] [2021-11-09 08:48:49,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-11-09 08:48:49,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-11-09 08:48:49,435 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:49,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:49,436 INFO L85 PathProgramCache]: Analyzing trace with hash 701477157, now seen corresponding path program 50 times [2021-11-09 08:48:49,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:49,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77934291] [2021-11-09 08:48:49,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:49,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:50,962 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:50,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:50,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77934291] [2021-11-09 08:48:50,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77934291] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:50,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040834532] [2021-11-09 08:48:50,963 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:48:50,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:50,964 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:50,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-11-09 08:48:55,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:48:55,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:48:55,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-09 08:48:55,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:48:56,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:56,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040834532] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:56,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:48:56,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-09 08:48:56,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122479624] [2021-11-09 08:48:56,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-09 08:48:56,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:48:56,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-09 08:48:56,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 08:48:56,527 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:56,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:48:56,656 INFO L93 Difference]: Finished difference Result 264 states and 264 transitions. [2021-11-09 08:48:56,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-09 08:48:56,657 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-11-09 08:48:56,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:48:56,657 INFO L225 Difference]: With dead ends: 264 [2021-11-09 08:48:56,657 INFO L226 Difference]: Without dead ends: 263 [2021-11-09 08:48:56,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 08:48:56,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-09 08:48:56,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 262. [2021-11-09 08:48:56,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 260 states have (on average 1.0076923076923077) internal successors, (262), 261 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:56,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 262 transitions. [2021-11-09 08:48:56,662 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 262 transitions. Word has length 255 [2021-11-09 08:48:56,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:48:56,662 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 262 transitions. [2021-11-09 08:48:56,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:48:56,663 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 262 transitions. [2021-11-09 08:48:56,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-09 08:48:56,663 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:48:56,664 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 50, 1, 1, 1, 1] [2021-11-09 08:48:56,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2021-11-09 08:48:56,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-11-09 08:48:56,864 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:48:56,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:48:56,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1604828433, now seen corresponding path program 50 times [2021-11-09 08:48:56,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:48:56,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685756136] [2021-11-09 08:48:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:48:56,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:48:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:48:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6375 backedges. 0 proven. 6375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:48:58,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:48:58,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685756136] [2021-11-09 08:48:58,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685756136] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:48:58,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013184234] [2021-11-09 08:48:58,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:48:58,102 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:48:58,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:48:58,103 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:48:58,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-11-09 08:49:02,606 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:49:02,606 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:02,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-09 08:49:02,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 6375 backedges. 0 proven. 6375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:03,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013184234] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:03,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:03,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-09 08:49:03,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47649358] [2021-11-09 08:49:03,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-09 08:49:03,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-09 08:49:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 08:49:03,214 INFO L87 Difference]: Start difference. First operand 262 states and 262 transitions. Second operand has 53 states, 52 states have (on average 4.961538461538462) internal successors, (258), 53 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:03,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:03,359 INFO L93 Difference]: Finished difference Result 266 states and 266 transitions. [2021-11-09 08:49:03,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-09 08:49:03,360 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 4.961538461538462) internal successors, (258), 53 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-11-09 08:49:03,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:03,360 INFO L225 Difference]: With dead ends: 266 [2021-11-09 08:49:03,360 INFO L226 Difference]: Without dead ends: 265 [2021-11-09 08:49:03,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-09 08:49:03,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-09 08:49:03,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2021-11-09 08:49:03,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 263 states have (on average 1.0076045627376427) internal successors, (265), 264 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:03,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 265 transitions. [2021-11-09 08:49:03,366 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 265 transitions. Word has length 258 [2021-11-09 08:49:03,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:03,366 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 265 transitions. [2021-11-09 08:49:03,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 4.961538461538462) internal successors, (258), 53 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:03,366 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 265 transitions. [2021-11-09 08:49:03,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-09 08:49:03,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:03,367 INFO L513 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 1, 1, 1, 1] [2021-11-09 08:49:03,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2021-11-09 08:49:03,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2021-11-09 08:49:03,567 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:03,568 INFO L85 PathProgramCache]: Analyzing trace with hash -346863375, now seen corresponding path program 51 times [2021-11-09 08:49:03,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:03,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998763337] [2021-11-09 08:49:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:03,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:03,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:04,637 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:04,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:04,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998763337] [2021-11-09 08:49:04,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998763337] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:04,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146972333] [2021-11-09 08:49:04,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:49:04,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:04,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:04,639 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:04,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-11-09 08:49:08,825 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-09 08:49:08,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:08,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-09 08:49:08,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:09,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:09,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146972333] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:09,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:09,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-09 08:49:09,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139424412] [2021-11-09 08:49:09,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-09 08:49:09,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:09,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-09 08:49:09,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 08:49:09,455 INFO L87 Difference]: Start difference. First operand 265 states and 265 transitions. Second operand has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:09,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:09,591 INFO L93 Difference]: Finished difference Result 269 states and 269 transitions. [2021-11-09 08:49:09,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-09 08:49:09,591 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-11-09 08:49:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:09,592 INFO L225 Difference]: With dead ends: 269 [2021-11-09 08:49:09,592 INFO L226 Difference]: Without dead ends: 268 [2021-11-09 08:49:09,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 08:49:09,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2021-11-09 08:49:09,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 267. [2021-11-09 08:49:09,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.0075471698113208) internal successors, (267), 266 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 267 transitions. [2021-11-09 08:49:09,597 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 267 transitions. Word has length 260 [2021-11-09 08:49:09,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:09,598 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 267 transitions. [2021-11-09 08:49:09,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 267 transitions. [2021-11-09 08:49:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-09 08:49:09,599 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:09,600 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 51, 1, 1, 1, 1] [2021-11-09 08:49:09,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2021-11-09 08:49:09,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2021-11-09 08:49:09,807 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:09,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:09,808 INFO L85 PathProgramCache]: Analyzing trace with hash 284559267, now seen corresponding path program 51 times [2021-11-09 08:49:09,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:09,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566477834] [2021-11-09 08:49:09,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:09,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 6630 backedges. 0 proven. 6630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:10,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:10,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566477834] [2021-11-09 08:49:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566477834] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:10,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631505943] [2021-11-09 08:49:10,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:49:10,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:10,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:10,937 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:10,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-11-09 08:49:15,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-09 08:49:15,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:15,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-09 08:49:15,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:15,935 INFO L134 CoverageAnalysis]: Checked inductivity of 6630 backedges. 0 proven. 6630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:15,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631505943] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:15,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:15,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-09 08:49:15,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323006716] [2021-11-09 08:49:15,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-09 08:49:15,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:15,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-09 08:49:15,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 08:49:15,937 INFO L87 Difference]: Start difference. First operand 267 states and 267 transitions. Second operand has 54 states, 53 states have (on average 4.962264150943396) internal successors, (263), 54 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:16,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:16,052 INFO L93 Difference]: Finished difference Result 271 states and 271 transitions. [2021-11-09 08:49:16,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-09 08:49:16,052 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.962264150943396) internal successors, (263), 54 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2021-11-09 08:49:16,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:16,053 INFO L225 Difference]: With dead ends: 271 [2021-11-09 08:49:16,053 INFO L226 Difference]: Without dead ends: 270 [2021-11-09 08:49:16,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 08:49:16,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-09 08:49:16,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2021-11-09 08:49:16,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 268 states have (on average 1.007462686567164) internal successors, (270), 269 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:16,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 270 transitions. [2021-11-09 08:49:16,060 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 270 transitions. Word has length 263 [2021-11-09 08:49:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:16,061 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 270 transitions. [2021-11-09 08:49:16,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.962264150943396) internal successors, (263), 54 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:16,061 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 270 transitions. [2021-11-09 08:49:16,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-09 08:49:16,062 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:16,062 INFO L513 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 1, 1, 1, 1] [2021-11-09 08:49:16,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2021-11-09 08:49:16,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:16,287 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:16,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:16,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1416449883, now seen corresponding path program 52 times [2021-11-09 08:49:16,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:16,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703284962] [2021-11-09 08:49:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:16,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:17,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:17,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:17,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703284962] [2021-11-09 08:49:17,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703284962] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:17,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83642214] [2021-11-09 08:49:17,470 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:49:17,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:17,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:17,471 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:17,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-11-09 08:49:21,777 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:49:21,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:21,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-09 08:49:21,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:22,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83642214] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:22,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:22,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-09 08:49:22,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755925806] [2021-11-09 08:49:22,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-09 08:49:22,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-09 08:49:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 08:49:22,495 INFO L87 Difference]: Start difference. First operand 270 states and 270 transitions. Second operand has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:22,634 INFO L93 Difference]: Finished difference Result 274 states and 274 transitions. [2021-11-09 08:49:22,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-09 08:49:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-11-09 08:49:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:22,636 INFO L225 Difference]: With dead ends: 274 [2021-11-09 08:49:22,636 INFO L226 Difference]: Without dead ends: 273 [2021-11-09 08:49:22,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 08:49:22,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-09 08:49:22,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 272. [2021-11-09 08:49:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 270 states have (on average 1.0074074074074073) internal successors, (272), 271 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 272 transitions. [2021-11-09 08:49:22,640 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 272 transitions. Word has length 265 [2021-11-09 08:49:22,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:22,640 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 272 transitions. [2021-11-09 08:49:22,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:22,641 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 272 transitions. [2021-11-09 08:49:22,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-11-09 08:49:22,642 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:22,642 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 52, 1, 1, 1, 1] [2021-11-09 08:49:22,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Forceful destruction successful, exit code 0 [2021-11-09 08:49:22,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:22,858 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:22,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:22,859 INFO L85 PathProgramCache]: Analyzing trace with hash 595268463, now seen corresponding path program 52 times [2021-11-09 08:49:22,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:22,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756123032] [2021-11-09 08:49:22,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:22,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 6890 backedges. 0 proven. 6890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:24,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:24,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756123032] [2021-11-09 08:49:24,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756123032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:24,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692721633] [2021-11-09 08:49:24,476 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:49:24,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:24,478 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:24,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-11-09 08:49:29,196 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:49:29,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:29,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-09 08:49:29,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 6890 backedges. 0 proven. 6890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:30,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692721633] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:30,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:30,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-09 08:49:30,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35198449] [2021-11-09 08:49:30,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-09 08:49:30,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:30,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-09 08:49:30,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 08:49:30,056 INFO L87 Difference]: Start difference. First operand 272 states and 272 transitions. Second operand has 55 states, 54 states have (on average 4.962962962962963) internal successors, (268), 55 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:30,202 INFO L93 Difference]: Finished difference Result 276 states and 276 transitions. [2021-11-09 08:49:30,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-09 08:49:30,203 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 4.962962962962963) internal successors, (268), 55 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2021-11-09 08:49:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:30,204 INFO L225 Difference]: With dead ends: 276 [2021-11-09 08:49:30,204 INFO L226 Difference]: Without dead ends: 275 [2021-11-09 08:49:30,204 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 08:49:30,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-09 08:49:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-09 08:49:30,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 273 states have (on average 1.0073260073260073) internal successors, (275), 274 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 275 transitions. [2021-11-09 08:49:30,209 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 275 transitions. Word has length 268 [2021-11-09 08:49:30,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:30,209 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 275 transitions. [2021-11-09 08:49:30,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 4.962962962962963) internal successors, (268), 55 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:30,209 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 275 transitions. [2021-11-09 08:49:30,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-09 08:49:30,210 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:30,210 INFO L513 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 1, 1, 1, 1] [2021-11-09 08:49:30,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2021-11-09 08:49:30,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-11-09 08:49:30,411 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:30,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:30,411 INFO L85 PathProgramCache]: Analyzing trace with hash 822344049, now seen corresponding path program 53 times [2021-11-09 08:49:30,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:30,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181640433] [2021-11-09 08:49:30,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:30,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:31,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:31,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181640433] [2021-11-09 08:49:31,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181640433] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:31,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978774340] [2021-11-09 08:49:31,759 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:49:31,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:31,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:31,760 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:31,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2021-11-09 08:49:37,171 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-09 08:49:37,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:37,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-09 08:49:37,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:37,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978774340] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:37,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:37,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-09 08:49:37,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494873226] [2021-11-09 08:49:37,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-09 08:49:37,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:37,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-09 08:49:37,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 08:49:37,911 INFO L87 Difference]: Start difference. First operand 275 states and 275 transitions. Second operand has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:38,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:38,097 INFO L93 Difference]: Finished difference Result 279 states and 279 transitions. [2021-11-09 08:49:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-09 08:49:38,097 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-11-09 08:49:38,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:38,098 INFO L225 Difference]: With dead ends: 279 [2021-11-09 08:49:38,098 INFO L226 Difference]: Without dead ends: 278 [2021-11-09 08:49:38,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 08:49:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-09 08:49:38,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 277. [2021-11-09 08:49:38,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 275 states have (on average 1.0072727272727273) internal successors, (277), 276 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 277 transitions. [2021-11-09 08:49:38,103 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 277 transitions. Word has length 270 [2021-11-09 08:49:38,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:38,103 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 277 transitions. [2021-11-09 08:49:38,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 277 transitions. [2021-11-09 08:49:38,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-09 08:49:38,105 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:38,105 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 53, 1, 1, 1, 1] [2021-11-09 08:49:38,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Forceful destruction successful, exit code 0 [2021-11-09 08:49:38,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2021-11-09 08:49:38,305 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:38,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:38,306 INFO L85 PathProgramCache]: Analyzing trace with hash -41842909, now seen corresponding path program 53 times [2021-11-09 08:49:38,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:38,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97953403] [2021-11-09 08:49:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:38,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:39,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:39,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97953403] [2021-11-09 08:49:39,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97953403] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:39,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481474392] [2021-11-09 08:49:39,816 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:49:39,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:39,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:39,817 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:39,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2021-11-09 08:49:45,474 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-09 08:49:45,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:45,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-09 08:49:45,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:46,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481474392] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:46,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:46,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-09 08:49:46,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223615497] [2021-11-09 08:49:46,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-09 08:49:46,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:46,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-09 08:49:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 08:49:46,378 INFO L87 Difference]: Start difference. First operand 277 states and 277 transitions. Second operand has 56 states, 55 states have (on average 4.963636363636364) internal successors, (273), 56 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:46,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:46,543 INFO L93 Difference]: Finished difference Result 281 states and 281 transitions. [2021-11-09 08:49:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-09 08:49:46,544 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.963636363636364) internal successors, (273), 56 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2021-11-09 08:49:46,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:46,545 INFO L225 Difference]: With dead ends: 281 [2021-11-09 08:49:46,545 INFO L226 Difference]: Without dead ends: 280 [2021-11-09 08:49:46,545 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 08:49:46,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-09 08:49:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-11-09 08:49:46,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 278 states have (on average 1.0071942446043165) internal successors, (280), 279 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:46,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 280 transitions. [2021-11-09 08:49:46,551 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 280 transitions. Word has length 273 [2021-11-09 08:49:46,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:46,552 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 280 transitions. [2021-11-09 08:49:46,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.963636363636364) internal successors, (273), 56 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 280 transitions. [2021-11-09 08:49:46,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-11-09 08:49:46,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:46,554 INFO L513 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 1, 1, 1, 1] [2021-11-09 08:49:46,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2021-11-09 08:49:46,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2021-11-09 08:49:46,754 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1556328411, now seen corresponding path program 54 times [2021-11-09 08:49:46,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:46,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317506074] [2021-11-09 08:49:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:46,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:48,209 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:48,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:48,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317506074] [2021-11-09 08:49:48,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317506074] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:48,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751849032] [2021-11-09 08:49:48,209 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:49:48,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:48,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:48,210 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:48,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2021-11-09 08:49:54,072 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-09 08:49:54,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:49:54,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-09 08:49:54,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:49:55,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:55,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751849032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:55,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:49:55,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-09 08:49:55,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150591859] [2021-11-09 08:49:55,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-09 08:49:55,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:49:55,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-09 08:49:55,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 08:49:55,011 INFO L87 Difference]: Start difference. First operand 280 states and 280 transitions. Second operand has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:55,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:49:55,180 INFO L93 Difference]: Finished difference Result 284 states and 284 transitions. [2021-11-09 08:49:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-09 08:49:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2021-11-09 08:49:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:49:55,181 INFO L225 Difference]: With dead ends: 284 [2021-11-09 08:49:55,181 INFO L226 Difference]: Without dead ends: 283 [2021-11-09 08:49:55,181 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 08:49:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-09 08:49:55,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 282. [2021-11-09 08:49:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 280 states have (on average 1.0071428571428571) internal successors, (282), 281 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:55,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 282 transitions. [2021-11-09 08:49:55,186 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 282 transitions. Word has length 275 [2021-11-09 08:49:55,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:49:55,187 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 282 transitions. [2021-11-09 08:49:55,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:49:55,187 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 282 transitions. [2021-11-09 08:49:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-11-09 08:49:55,188 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:49:55,188 INFO L513 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 54, 1, 1, 1, 1] [2021-11-09 08:49:55,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Ended with exit code 0 [2021-11-09 08:49:55,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-11-09 08:49:55,391 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:49:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:49:55,392 INFO L85 PathProgramCache]: Analyzing trace with hash -407682065, now seen corresponding path program 54 times [2021-11-09 08:49:55,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:49:55,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490202641] [2021-11-09 08:49:55,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:49:55,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:49:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:49:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7425 backedges. 0 proven. 7425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:49:56,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:49:56,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490202641] [2021-11-09 08:49:56,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490202641] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:49:56,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623588423] [2021-11-09 08:49:56,887 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:49:56,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:49:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:49:56,888 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:49:56,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-11-09 08:50:03,047 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-09 08:50:03,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:50:03,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-09 08:50:03,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:03,862 INFO L134 CoverageAnalysis]: Checked inductivity of 7425 backedges. 0 proven. 7425 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:03,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623588423] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:03,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:03,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-09 08:50:03,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903988839] [2021-11-09 08:50:03,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-09 08:50:03,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-09 08:50:03,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 08:50:03,864 INFO L87 Difference]: Start difference. First operand 282 states and 282 transitions. Second operand has 57 states, 56 states have (on average 4.964285714285714) internal successors, (278), 57 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:04,022 INFO L93 Difference]: Finished difference Result 286 states and 286 transitions. [2021-11-09 08:50:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-09 08:50:04,023 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 4.964285714285714) internal successors, (278), 57 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 278 [2021-11-09 08:50:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:04,024 INFO L225 Difference]: With dead ends: 286 [2021-11-09 08:50:04,024 INFO L226 Difference]: Without dead ends: 285 [2021-11-09 08:50:04,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 08:50:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-11-09 08:50:04,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-11-09 08:50:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 283 states have (on average 1.0070671378091873) internal successors, (285), 284 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 285 transitions. [2021-11-09 08:50:04,030 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 285 transitions. Word has length 278 [2021-11-09 08:50:04,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:04,030 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 285 transitions. [2021-11-09 08:50:04,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 4.964285714285714) internal successors, (278), 57 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:04,031 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 285 transitions. [2021-11-09 08:50:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-09 08:50:04,032 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:04,032 INFO L513 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 1, 1, 1, 1] [2021-11-09 08:50:04,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2021-11-09 08:50:04,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:04,255 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:04,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:04,256 INFO L85 PathProgramCache]: Analyzing trace with hash -940439055, now seen corresponding path program 55 times [2021-11-09 08:50:04,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:04,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84778144] [2021-11-09 08:50:04,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:04,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:05,716 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:05,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:05,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84778144] [2021-11-09 08:50:05,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84778144] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:05,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524321068] [2021-11-09 08:50:05,717 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:50:05,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:05,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:05,719 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:05,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-11-09 08:50:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:11,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-09 08:50:11,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:12,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524321068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:12,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:12,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-09 08:50:12,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863609521] [2021-11-09 08:50:12,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-09 08:50:12,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:12,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-09 08:50:12,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 08:50:12,579 INFO L87 Difference]: Start difference. First operand 285 states and 285 transitions. Second operand has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:12,735 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2021-11-09 08:50:12,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-09 08:50:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-11-09 08:50:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:12,737 INFO L225 Difference]: With dead ends: 289 [2021-11-09 08:50:12,737 INFO L226 Difference]: Without dead ends: 288 [2021-11-09 08:50:12,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 08:50:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-09 08:50:12,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 287. [2021-11-09 08:50:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 285 states have (on average 1.0070175438596491) internal successors, (287), 286 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:12,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 287 transitions. [2021-11-09 08:50:12,745 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 287 transitions. Word has length 280 [2021-11-09 08:50:12,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:12,746 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 287 transitions. [2021-11-09 08:50:12,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:12,747 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 287 transitions. [2021-11-09 08:50:12,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-09 08:50:12,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:12,748 INFO L513 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 55, 1, 1, 1, 1] [2021-11-09 08:50:12,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Forceful destruction successful, exit code 0 [2021-11-09 08:50:12,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:12,971 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:12,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash -548165981, now seen corresponding path program 55 times [2021-11-09 08:50:12,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:12,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597875322] [2021-11-09 08:50:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:12,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:13,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 7700 backedges. 0 proven. 7700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:14,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:14,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597875322] [2021-11-09 08:50:14,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597875322] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:14,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504233597] [2021-11-09 08:50:14,725 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:50:14,725 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:14,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:14,727 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:14,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-11-09 08:50:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:20,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-09 08:50:20,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:21,399 INFO L134 CoverageAnalysis]: Checked inductivity of 7700 backedges. 0 proven. 7700 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:21,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504233597] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:21,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:21,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-09 08:50:21,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726544793] [2021-11-09 08:50:21,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-09 08:50:21,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:21,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-09 08:50:21,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 08:50:21,402 INFO L87 Difference]: Start difference. First operand 287 states and 287 transitions. Second operand has 58 states, 57 states have (on average 4.964912280701754) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:21,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:21,609 INFO L93 Difference]: Finished difference Result 291 states and 291 transitions. [2021-11-09 08:50:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-09 08:50:21,610 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.964912280701754) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2021-11-09 08:50:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:21,611 INFO L225 Difference]: With dead ends: 291 [2021-11-09 08:50:21,611 INFO L226 Difference]: Without dead ends: 290 [2021-11-09 08:50:21,612 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-09 08:50:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-09 08:50:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-09 08:50:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 288 states have (on average 1.0069444444444444) internal successors, (290), 289 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:21,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 290 transitions. [2021-11-09 08:50:21,622 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 290 transitions. Word has length 283 [2021-11-09 08:50:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:21,624 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 290 transitions. [2021-11-09 08:50:21,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.964912280701754) internal successors, (283), 58 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:21,624 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 290 transitions. [2021-11-09 08:50:21,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-11-09 08:50:21,626 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:21,626 INFO L513 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 1, 1, 1, 1] [2021-11-09 08:50:21,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2021-11-09 08:50:21,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-11-09 08:50:21,847 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:21,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:21,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1493471141, now seen corresponding path program 56 times [2021-11-09 08:50:21,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:21,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962545091] [2021-11-09 08:50:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:21,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:23,516 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:23,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:23,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962545091] [2021-11-09 08:50:23,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962545091] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:23,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585545605] [2021-11-09 08:50:23,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:50:23,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:23,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:23,518 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:23,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-11-09 08:50:29,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:50:29,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:50:29,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-09 08:50:29,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:30,240 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:30,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585545605] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:30,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:30,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-09 08:50:30,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703529429] [2021-11-09 08:50:30,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-09 08:50:30,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-09 08:50:30,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 08:50:30,243 INFO L87 Difference]: Start difference. First operand 290 states and 290 transitions. Second operand has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:30,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:30,498 INFO L93 Difference]: Finished difference Result 294 states and 294 transitions. [2021-11-09 08:50:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-09 08:50:30,499 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-11-09 08:50:30,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:30,499 INFO L225 Difference]: With dead ends: 294 [2021-11-09 08:50:30,499 INFO L226 Difference]: Without dead ends: 293 [2021-11-09 08:50:30,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 08:50:30,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-09 08:50:30,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 292. [2021-11-09 08:50:30,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 290 states have (on average 1.006896551724138) internal successors, (292), 291 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:30,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 292 transitions. [2021-11-09 08:50:30,504 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 292 transitions. Word has length 285 [2021-11-09 08:50:30,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:30,504 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 292 transitions. [2021-11-09 08:50:30,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:30,504 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 292 transitions. [2021-11-09 08:50:30,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-09 08:50:30,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:30,505 INFO L513 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 56, 1, 1, 1, 1] [2021-11-09 08:50:30,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Ended with exit code 0 [2021-11-09 08:50:30,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:30,706 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:30,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash 432591983, now seen corresponding path program 56 times [2021-11-09 08:50:30,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:30,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625496915] [2021-11-09 08:50:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:30,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7980 backedges. 0 proven. 7980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:32,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:32,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625496915] [2021-11-09 08:50:32,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625496915] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:32,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799433700] [2021-11-09 08:50:32,201 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:50:32,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:32,201 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:32,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-11-09 08:50:37,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:50:37,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:50:37,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-09 08:50:37,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:38,446 INFO L134 CoverageAnalysis]: Checked inductivity of 7980 backedges. 0 proven. 7980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:38,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799433700] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:38,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:38,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-09 08:50:38,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416012663] [2021-11-09 08:50:38,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-09 08:50:38,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:38,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-09 08:50:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 08:50:38,448 INFO L87 Difference]: Start difference. First operand 292 states and 292 transitions. Second operand has 59 states, 58 states have (on average 4.9655172413793105) internal successors, (288), 59 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:38,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:38,620 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2021-11-09 08:50:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-09 08:50:38,620 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 4.9655172413793105) internal successors, (288), 59 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 288 [2021-11-09 08:50:38,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:38,621 INFO L225 Difference]: With dead ends: 296 [2021-11-09 08:50:38,621 INFO L226 Difference]: Without dead ends: 295 [2021-11-09 08:50:38,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 08:50:38,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-09 08:50:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-11-09 08:50:38,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 293 states have (on average 1.006825938566553) internal successors, (295), 294 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:38,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 295 transitions. [2021-11-09 08:50:38,626 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 295 transitions. Word has length 288 [2021-11-09 08:50:38,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:38,626 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 295 transitions. [2021-11-09 08:50:38,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.9655172413793105) internal successors, (288), 59 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 295 transitions. [2021-11-09 08:50:38,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-09 08:50:38,628 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:38,628 INFO L513 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 1, 1, 1, 1] [2021-11-09 08:50:38,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2021-11-09 08:50:38,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:38,828 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash -890930575, now seen corresponding path program 57 times [2021-11-09 08:50:38,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:38,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092697070] [2021-11-09 08:50:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:38,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:40,186 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:40,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:40,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092697070] [2021-11-09 08:50:40,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092697070] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:40,186 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906243026] [2021-11-09 08:50:40,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:50:40,187 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:40,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:40,187 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-11-09 08:50:46,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-09 08:50:46,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:50:46,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-09 08:50:46,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:46,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906243026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:46,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:46,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-09 08:50:46,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014040940] [2021-11-09 08:50:46,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-09 08:50:46,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:46,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-09 08:50:46,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 08:50:46,828 INFO L87 Difference]: Start difference. First operand 295 states and 295 transitions. Second operand has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:46,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:46,981 INFO L93 Difference]: Finished difference Result 299 states and 299 transitions. [2021-11-09 08:50:46,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-09 08:50:46,996 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-11-09 08:50:46,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:46,997 INFO L225 Difference]: With dead ends: 299 [2021-11-09 08:50:46,997 INFO L226 Difference]: Without dead ends: 298 [2021-11-09 08:50:46,998 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 08:50:46,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-11-09 08:50:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 297. [2021-11-09 08:50:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 295 states have (on average 1.006779661016949) internal successors, (297), 296 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 297 transitions. [2021-11-09 08:50:47,006 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 297 transitions. Word has length 290 [2021-11-09 08:50:47,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:47,006 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 297 transitions. [2021-11-09 08:50:47,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 297 transitions. [2021-11-09 08:50:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-09 08:50:47,008 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:47,009 INFO L513 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 57, 1, 1, 1, 1] [2021-11-09 08:50:47,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2021-11-09 08:50:47,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:47,224 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:47,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:47,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1185179171, now seen corresponding path program 57 times [2021-11-09 08:50:47,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:47,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607933223] [2021-11-09 08:50:47,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:47,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:48,674 INFO L134 CoverageAnalysis]: Checked inductivity of 8265 backedges. 0 proven. 8265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:48,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:48,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607933223] [2021-11-09 08:50:48,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607933223] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:48,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911150237] [2021-11-09 08:50:48,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:50:48,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:48,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:48,676 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:48,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2021-11-09 08:50:54,425 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-09 08:50:54,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:50:54,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-09 08:50:54,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:50:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 8265 backedges. 0 proven. 8265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:55,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911150237] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:55,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:50:55,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-09 08:50:55,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210445716] [2021-11-09 08:50:55,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-09 08:50:55,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:50:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-09 08:50:55,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 08:50:55,277 INFO L87 Difference]: Start difference. First operand 297 states and 297 transitions. Second operand has 60 states, 59 states have (on average 4.966101694915254) internal successors, (293), 60 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:50:55,426 INFO L93 Difference]: Finished difference Result 301 states and 301 transitions. [2021-11-09 08:50:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-09 08:50:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 4.966101694915254) internal successors, (293), 60 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2021-11-09 08:50:55,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:50:55,427 INFO L225 Difference]: With dead ends: 301 [2021-11-09 08:50:55,427 INFO L226 Difference]: Without dead ends: 300 [2021-11-09 08:50:55,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 08:50:55,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-09 08:50:55,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-11-09 08:50:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 298 states have (on average 1.0067114093959733) internal successors, (300), 299 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:55,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 300 transitions. [2021-11-09 08:50:55,432 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 300 transitions. Word has length 293 [2021-11-09 08:50:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:50:55,432 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 300 transitions. [2021-11-09 08:50:55,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 4.966101694915254) internal successors, (293), 60 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:50:55,432 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 300 transitions. [2021-11-09 08:50:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-11-09 08:50:55,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:50:55,434 INFO L513 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 1, 1, 1, 1] [2021-11-09 08:50:55,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2021-11-09 08:50:55,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:55,634 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:50:55,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:50:55,634 INFO L85 PathProgramCache]: Analyzing trace with hash 790851365, now seen corresponding path program 58 times [2021-11-09 08:50:55,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:50:55,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556772583] [2021-11-09 08:50:55,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:50:55,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:50:55,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:50:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:50:57,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:50:57,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556772583] [2021-11-09 08:50:57,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556772583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:50:57,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570351715] [2021-11-09 08:50:57,255 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:50:57,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:50:57,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:50:57,255 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:50:57,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2021-11-09 08:51:02,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:51:02,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:02,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-09 08:51:02,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:03,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570351715] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:03,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:03,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-09 08:51:03,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933974299] [2021-11-09 08:51:03,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-09 08:51:03,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:03,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-09 08:51:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 08:51:03,563 INFO L87 Difference]: Start difference. First operand 300 states and 300 transitions. Second operand has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:03,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:03,708 INFO L93 Difference]: Finished difference Result 304 states and 304 transitions. [2021-11-09 08:51:03,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-09 08:51:03,709 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-11-09 08:51:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:03,709 INFO L225 Difference]: With dead ends: 304 [2021-11-09 08:51:03,710 INFO L226 Difference]: Without dead ends: 303 [2021-11-09 08:51:03,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 08:51:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-09 08:51:03,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 302. [2021-11-09 08:51:03,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 300 states have (on average 1.0066666666666666) internal successors, (302), 301 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:03,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 302 transitions. [2021-11-09 08:51:03,716 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 302 transitions. Word has length 295 [2021-11-09 08:51:03,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:03,716 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 302 transitions. [2021-11-09 08:51:03,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:03,716 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 302 transitions. [2021-11-09 08:51:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-09 08:51:03,717 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:03,717 INFO L513 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 58, 1, 1, 1, 1] [2021-11-09 08:51:03,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Forceful destruction successful, exit code 0 [2021-11-09 08:51:03,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-11-09 08:51:03,918 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1937521425, now seen corresponding path program 58 times [2021-11-09 08:51:03,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:03,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482347404] [2021-11-09 08:51:03,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:03,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:05,473 INFO L134 CoverageAnalysis]: Checked inductivity of 8555 backedges. 0 proven. 8555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:05,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:05,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482347404] [2021-11-09 08:51:05,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482347404] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:05,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633810972] [2021-11-09 08:51:05,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:51:05,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:05,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:05,475 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:05,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-11-09 08:51:10,908 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:51:10,908 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:10,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-09 08:51:10,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8555 backedges. 0 proven. 8555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:11,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633810972] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:11,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:11,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-09 08:51:11,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269473283] [2021-11-09 08:51:11,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-09 08:51:11,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:11,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-09 08:51:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 08:51:11,671 INFO L87 Difference]: Start difference. First operand 302 states and 302 transitions. Second operand has 61 states, 60 states have (on average 4.966666666666667) internal successors, (298), 61 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:11,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:11,825 INFO L93 Difference]: Finished difference Result 306 states and 306 transitions. [2021-11-09 08:51:11,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-09 08:51:11,825 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 4.966666666666667) internal successors, (298), 61 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 298 [2021-11-09 08:51:11,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:11,826 INFO L225 Difference]: With dead ends: 306 [2021-11-09 08:51:11,826 INFO L226 Difference]: Without dead ends: 305 [2021-11-09 08:51:11,826 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-09 08:51:11,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-09 08:51:11,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 305. [2021-11-09 08:51:11,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 303 states have (on average 1.0066006600660067) internal successors, (305), 304 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:11,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 305 transitions. [2021-11-09 08:51:11,831 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 305 transitions. Word has length 298 [2021-11-09 08:51:11,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:11,831 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 305 transitions. [2021-11-09 08:51:11,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 4.966666666666667) internal successors, (298), 61 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 305 transitions. [2021-11-09 08:51:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-09 08:51:11,832 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:11,832 INFO L513 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 1, 1, 1, 1] [2021-11-09 08:51:11,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Ended with exit code 0 [2021-11-09 08:51:12,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-11-09 08:51:12,033 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:12,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:12,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2057718513, now seen corresponding path program 59 times [2021-11-09 08:51:12,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:12,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674475358] [2021-11-09 08:51:12,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:12,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:13,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:13,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674475358] [2021-11-09 08:51:13,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674475358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:13,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52322810] [2021-11-09 08:51:13,516 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:51:13,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:13,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:13,517 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:13,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-11-09 08:51:19,341 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-09 08:51:19,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:19,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-09 08:51:19,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:20,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52322810] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:20,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:20,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-09 08:51:20,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510687447] [2021-11-09 08:51:20,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-09 08:51:20,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-09 08:51:20,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 08:51:20,074 INFO L87 Difference]: Start difference. First operand 305 states and 305 transitions. Second operand has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:20,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:20,204 INFO L93 Difference]: Finished difference Result 309 states and 309 transitions. [2021-11-09 08:51:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-09 08:51:20,205 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-11-09 08:51:20,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:20,205 INFO L225 Difference]: With dead ends: 309 [2021-11-09 08:51:20,205 INFO L226 Difference]: Without dead ends: 308 [2021-11-09 08:51:20,206 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 08:51:20,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-11-09 08:51:20,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 307. [2021-11-09 08:51:20,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 305 states have (on average 1.0065573770491802) internal successors, (307), 306 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 307 transitions. [2021-11-09 08:51:20,210 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 307 transitions. Word has length 300 [2021-11-09 08:51:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:20,210 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 307 transitions. [2021-11-09 08:51:20,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:20,211 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 307 transitions. [2021-11-09 08:51:20,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-09 08:51:20,212 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:20,212 INFO L513 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 59, 1, 1, 1, 1] [2021-11-09 08:51:20,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Forceful destruction successful, exit code 0 [2021-11-09 08:51:20,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-11-09 08:51:20,412 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:20,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:20,413 INFO L85 PathProgramCache]: Analyzing trace with hash -575945309, now seen corresponding path program 59 times [2021-11-09 08:51:20,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:20,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125224672] [2021-11-09 08:51:20,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:20,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:21,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 0 proven. 8850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:21,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:21,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125224672] [2021-11-09 08:51:21,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125224672] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:21,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064902028] [2021-11-09 08:51:21,944 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:51:21,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:21,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:21,944 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:21,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-11-09 08:51:27,899 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-09 08:51:27,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:27,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-09 08:51:27,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:28,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8850 backedges. 0 proven. 8850 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:28,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064902028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:28,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:28,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-09 08:51:28,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802508994] [2021-11-09 08:51:28,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-09 08:51:28,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:28,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-09 08:51:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 08:51:28,614 INFO L87 Difference]: Start difference. First operand 307 states and 307 transitions. Second operand has 62 states, 61 states have (on average 4.967213114754099) internal successors, (303), 62 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:28,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:28,751 INFO L93 Difference]: Finished difference Result 311 states and 311 transitions. [2021-11-09 08:51:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-09 08:51:28,751 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 4.967213114754099) internal successors, (303), 62 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 303 [2021-11-09 08:51:28,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:28,752 INFO L225 Difference]: With dead ends: 311 [2021-11-09 08:51:28,752 INFO L226 Difference]: Without dead ends: 310 [2021-11-09 08:51:28,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-09 08:51:28,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-09 08:51:28,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2021-11-09 08:51:28,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 308 states have (on average 1.0064935064935066) internal successors, (310), 309 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 310 transitions. [2021-11-09 08:51:28,757 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 310 transitions. Word has length 303 [2021-11-09 08:51:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:28,757 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 310 transitions. [2021-11-09 08:51:28,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 4.967213114754099) internal successors, (303), 62 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 310 transitions. [2021-11-09 08:51:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-09 08:51:28,758 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:28,758 INFO L513 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 1, 1, 1, 1] [2021-11-09 08:51:28,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Ended with exit code 0 [2021-11-09 08:51:28,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-11-09 08:51:28,959 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:28,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:28,959 INFO L85 PathProgramCache]: Analyzing trace with hash 567340709, now seen corresponding path program 60 times [2021-11-09 08:51:28,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:28,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687613805] [2021-11-09 08:51:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:28,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:30,356 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:30,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:30,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687613805] [2021-11-09 08:51:30,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687613805] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:30,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704951650] [2021-11-09 08:51:30,356 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:51:30,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:30,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:30,357 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:30,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-11-09 08:51:36,143 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-09 08:51:36,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:36,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-09 08:51:36,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:36,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:36,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704951650] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:36,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:36,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-09 08:51:36,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786777856] [2021-11-09 08:51:36,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-09 08:51:36,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:36,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-09 08:51:36,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 08:51:36,870 INFO L87 Difference]: Start difference. First operand 310 states and 310 transitions. Second operand has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:37,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:37,031 INFO L93 Difference]: Finished difference Result 314 states and 314 transitions. [2021-11-09 08:51:37,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-09 08:51:37,032 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-11-09 08:51:37,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:37,033 INFO L225 Difference]: With dead ends: 314 [2021-11-09 08:51:37,033 INFO L226 Difference]: Without dead ends: 313 [2021-11-09 08:51:37,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 08:51:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-09 08:51:37,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 312. [2021-11-09 08:51:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 310 states have (on average 1.0064516129032257) internal successors, (312), 311 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 312 transitions. [2021-11-09 08:51:37,038 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 312 transitions. Word has length 305 [2021-11-09 08:51:37,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:37,038 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 312 transitions. [2021-11-09 08:51:37,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:37,038 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 312 transitions. [2021-11-09 08:51:37,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-11-09 08:51:37,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:37,040 INFO L513 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 60, 1, 1, 1, 1] [2021-11-09 08:51:37,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Forceful destruction successful, exit code 0 [2021-11-09 08:51:37,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126,120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:37,243 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash 950801775, now seen corresponding path program 60 times [2021-11-09 08:51:37,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:37,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680052997] [2021-11-09 08:51:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:37,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:38,696 INFO L134 CoverageAnalysis]: Checked inductivity of 9150 backedges. 0 proven. 9150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:38,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:38,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680052997] [2021-11-09 08:51:38,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680052997] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:38,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189450505] [2021-11-09 08:51:38,697 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:51:38,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:38,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:38,698 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:38,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2021-11-09 08:51:45,406 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-09 08:51:45,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:51:45,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-09 08:51:45,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9150 backedges. 0 proven. 9150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:46,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189450505] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:46,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:46,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-09 08:51:46,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528662985] [2021-11-09 08:51:46,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-09 08:51:46,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-09 08:51:46,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 08:51:46,307 INFO L87 Difference]: Start difference. First operand 312 states and 312 transitions. Second operand has 63 states, 62 states have (on average 4.967741935483871) internal successors, (308), 63 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:46,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:46,482 INFO L93 Difference]: Finished difference Result 316 states and 316 transitions. [2021-11-09 08:51:46,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-09 08:51:46,483 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.967741935483871) internal successors, (308), 63 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-11-09 08:51:46,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:46,484 INFO L225 Difference]: With dead ends: 316 [2021-11-09 08:51:46,484 INFO L226 Difference]: Without dead ends: 315 [2021-11-09 08:51:46,485 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 08:51:46,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-11-09 08:51:46,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2021-11-09 08:51:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 313 states have (on average 1.0063897763578276) internal successors, (315), 314 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:46,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 315 transitions. [2021-11-09 08:51:46,492 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 315 transitions. Word has length 308 [2021-11-09 08:51:46,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:46,492 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 315 transitions. [2021-11-09 08:51:46,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.967741935483871) internal successors, (308), 63 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:46,493 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 315 transitions. [2021-11-09 08:51:46,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-09 08:51:46,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:46,494 INFO L513 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 1, 1, 1, 1] [2021-11-09 08:51:46,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2021-11-09 08:51:46,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable127 [2021-11-09 08:51:46,695 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:46,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:46,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1107526799, now seen corresponding path program 61 times [2021-11-09 08:51:46,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:46,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759957556] [2021-11-09 08:51:46,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:46,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:48,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:48,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759957556] [2021-11-09 08:51:48,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759957556] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:48,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846573854] [2021-11-09 08:51:48,416 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:51:48,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:48,417 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:48,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2021-11-09 08:51:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:55,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-09 08:51:55,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:51:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:55,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846573854] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:55,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:51:55,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-09 08:51:55,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993588810] [2021-11-09 08:51:55,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-09 08:51:55,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:51:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-09 08:51:55,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 08:51:55,931 INFO L87 Difference]: Start difference. First operand 315 states and 315 transitions. Second operand has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:51:56,104 INFO L93 Difference]: Finished difference Result 319 states and 319 transitions. [2021-11-09 08:51:56,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-09 08:51:56,105 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-11-09 08:51:56,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:51:56,106 INFO L225 Difference]: With dead ends: 319 [2021-11-09 08:51:56,106 INFO L226 Difference]: Without dead ends: 318 [2021-11-09 08:51:56,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 08:51:56,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-09 08:51:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 317. [2021-11-09 08:51:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 315 states have (on average 1.0063492063492063) internal successors, (317), 316 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 317 transitions. [2021-11-09 08:51:56,112 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 317 transitions. Word has length 310 [2021-11-09 08:51:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:51:56,112 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 317 transitions. [2021-11-09 08:51:56,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:51:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 317 transitions. [2021-11-09 08:51:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-09 08:51:56,113 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:51:56,114 INFO L513 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 61, 1, 1, 1, 1] [2021-11-09 08:51:56,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2021-11-09 08:51:56,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2021-11-09 08:51:56,314 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:51:56,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:51:56,314 INFO L85 PathProgramCache]: Analyzing trace with hash -392051421, now seen corresponding path program 61 times [2021-11-09 08:51:56,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:51:56,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131255202] [2021-11-09 08:51:56,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:51:56,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:51:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:51:58,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9455 backedges. 0 proven. 9455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:51:58,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:51:58,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131255202] [2021-11-09 08:51:58,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131255202] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:51:58,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354385030] [2021-11-09 08:51:58,198 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:51:58,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:51:58,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:51:58,199 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:51:58,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2021-11-09 08:52:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:05,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-09 08:52:05,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9455 backedges. 0 proven. 9455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:06,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354385030] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:06,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:06,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-09 08:52:06,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300435939] [2021-11-09 08:52:06,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-09 08:52:06,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:06,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-09 08:52:06,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 08:52:06,380 INFO L87 Difference]: Start difference. First operand 317 states and 317 transitions. Second operand has 64 states, 63 states have (on average 4.968253968253968) internal successors, (313), 64 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:06,572 INFO L93 Difference]: Finished difference Result 321 states and 321 transitions. [2021-11-09 08:52:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-09 08:52:06,573 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.968253968253968) internal successors, (313), 64 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2021-11-09 08:52:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:06,573 INFO L225 Difference]: With dead ends: 321 [2021-11-09 08:52:06,573 INFO L226 Difference]: Without dead ends: 320 [2021-11-09 08:52:06,574 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-09 08:52:06,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-11-09 08:52:06,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2021-11-09 08:52:06,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 318 states have (on average 1.0062893081761006) internal successors, (320), 319 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 320 transitions. [2021-11-09 08:52:06,579 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 320 transitions. Word has length 313 [2021-11-09 08:52:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:06,579 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 320 transitions. [2021-11-09 08:52:06,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.968253968253968) internal successors, (313), 64 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 320 transitions. [2021-11-09 08:52:06,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-09 08:52:06,581 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:06,581 INFO L513 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-11-09 08:52:06,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Forceful destruction successful, exit code 0 [2021-11-09 08:52:06,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129 [2021-11-09 08:52:06,781 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:06,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:06,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1195707941, now seen corresponding path program 62 times [2021-11-09 08:52:06,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:06,782 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941399356] [2021-11-09 08:52:06,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:06,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:08,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:08,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941399356] [2021-11-09 08:52:08,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941399356] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:08,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629823796] [2021-11-09 08:52:08,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:52:08,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:08,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:08,637 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:08,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2021-11-09 08:52:15,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:52:15,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:52:15,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-09 08:52:15,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:16,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629823796] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:16,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:16,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-09 08:52:16,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791782151] [2021-11-09 08:52:16,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-09 08:52:16,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:16,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-09 08:52:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 08:52:16,855 INFO L87 Difference]: Start difference. First operand 320 states and 320 transitions. Second operand has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:17,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:17,050 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2021-11-09 08:52:17,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-09 08:52:17,051 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2021-11-09 08:52:17,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:17,052 INFO L225 Difference]: With dead ends: 324 [2021-11-09 08:52:17,052 INFO L226 Difference]: Without dead ends: 323 [2021-11-09 08:52:17,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 08:52:17,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-09 08:52:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 322. [2021-11-09 08:52:17,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 320 states have (on average 1.00625) internal successors, (322), 321 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2021-11-09 08:52:17,058 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 315 [2021-11-09 08:52:17,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:17,058 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2021-11-09 08:52:17,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:17,058 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2021-11-09 08:52:17,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-09 08:52:17,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:17,060 INFO L513 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 62, 1, 1, 1, 1] [2021-11-09 08:52:17,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Ended with exit code 0 [2021-11-09 08:52:17,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable130 [2021-11-09 08:52:17,260 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:17,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:17,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1123432977, now seen corresponding path program 62 times [2021-11-09 08:52:17,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:17,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222189005] [2021-11-09 08:52:17,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:17,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:19,172 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:19,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:19,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222189005] [2021-11-09 08:52:19,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222189005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:19,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569347388] [2021-11-09 08:52:19,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:52:19,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:19,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:19,179 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:19,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2021-11-09 08:52:26,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:52:26,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:52:26,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-09 08:52:26,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:27,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569347388] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:27,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:27,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-09 08:52:27,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280757498] [2021-11-09 08:52:27,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-09 08:52:27,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:27,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-09 08:52:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 08:52:27,624 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand has 65 states, 64 states have (on average 4.96875) internal successors, (318), 65 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:27,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:27,806 INFO L93 Difference]: Finished difference Result 326 states and 326 transitions. [2021-11-09 08:52:27,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-09 08:52:27,806 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 4.96875) internal successors, (318), 65 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-11-09 08:52:27,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:27,807 INFO L225 Difference]: With dead ends: 326 [2021-11-09 08:52:27,807 INFO L226 Difference]: Without dead ends: 325 [2021-11-09 08:52:27,807 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-09 08:52:27,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-11-09 08:52:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2021-11-09 08:52:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 323 states have (on average 1.0061919504643964) internal successors, (325), 324 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 325 transitions. [2021-11-09 08:52:27,812 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 325 transitions. Word has length 318 [2021-11-09 08:52:27,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:27,813 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 325 transitions. [2021-11-09 08:52:27,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 4.96875) internal successors, (318), 65 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:27,813 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 325 transitions. [2021-11-09 08:52:27,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-09 08:52:27,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:27,814 INFO L513 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 1, 1, 1, 1] [2021-11-09 08:52:27,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Forceful destruction successful, exit code 0 [2021-11-09 08:52:28,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:28,019 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:28,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:28,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1582298127, now seen corresponding path program 63 times [2021-11-09 08:52:28,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:28,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116412249] [2021-11-09 08:52:28,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:28,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:29,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:29,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116412249] [2021-11-09 08:52:29,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116412249] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:29,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754021767] [2021-11-09 08:52:29,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:52:29,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:29,900 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:29,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2021-11-09 08:52:37,181 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-09 08:52:37,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:52:37,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-09 08:52:37,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:37,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754021767] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:37,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:37,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-11-09 08:52:37,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927589282] [2021-11-09 08:52:37,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-09 08:52:37,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:37,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-09 08:52:37,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 08:52:37,968 INFO L87 Difference]: Start difference. First operand 325 states and 325 transitions. Second operand has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:38,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:38,137 INFO L93 Difference]: Finished difference Result 329 states and 329 transitions. [2021-11-09 08:52:38,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-09 08:52:38,137 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2021-11-09 08:52:38,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:38,138 INFO L225 Difference]: With dead ends: 329 [2021-11-09 08:52:38,138 INFO L226 Difference]: Without dead ends: 328 [2021-11-09 08:52:38,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 08:52:38,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-09 08:52:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2021-11-09 08:52:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 325 states have (on average 1.0061538461538462) internal successors, (327), 326 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 327 transitions. [2021-11-09 08:52:38,143 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 327 transitions. Word has length 320 [2021-11-09 08:52:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:38,144 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 327 transitions. [2021-11-09 08:52:38,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 327 transitions. [2021-11-09 08:52:38,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-09 08:52:38,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:38,145 INFO L513 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 63, 1, 1, 1, 1] [2021-11-09 08:52:38,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Forceful destruction successful, exit code 0 [2021-11-09 08:52:38,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:38,346 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:38,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash -977378141, now seen corresponding path program 63 times [2021-11-09 08:52:38,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:38,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613461907] [2021-11-09 08:52:38,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:38,346 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 10080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:39,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:39,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613461907] [2021-11-09 08:52:39,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613461907] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:39,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424133460] [2021-11-09 08:52:39,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:52:39,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:39,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:39,984 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:39,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2021-11-09 08:52:46,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-09 08:52:46,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:52:46,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-09 08:52:46,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10080 backedges. 0 proven. 10080 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:47,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424133460] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:47,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:47,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-11-09 08:52:47,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556811981] [2021-11-09 08:52:47,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-09 08:52:47,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:47,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-09 08:52:47,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 08:52:47,721 INFO L87 Difference]: Start difference. First operand 327 states and 327 transitions. Second operand has 66 states, 65 states have (on average 4.969230769230769) internal successors, (323), 66 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:47,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:47,905 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2021-11-09 08:52:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-09 08:52:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 4.969230769230769) internal successors, (323), 66 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2021-11-09 08:52:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:47,906 INFO L225 Difference]: With dead ends: 331 [2021-11-09 08:52:47,906 INFO L226 Difference]: Without dead ends: 330 [2021-11-09 08:52:47,906 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-09 08:52:47,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-09 08:52:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2021-11-09 08:52:47,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2021-11-09 08:52:47,912 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 323 [2021-11-09 08:52:47,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:47,912 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2021-11-09 08:52:47,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 4.969230769230769) internal successors, (323), 66 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:47,912 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2021-11-09 08:52:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-09 08:52:47,913 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:47,913 INFO L513 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 1, 1, 1, 1] [2021-11-09 08:52:47,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Forceful destruction successful, exit code 0 [2021-11-09 08:52:48,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable133 [2021-11-09 08:52:48,115 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:48,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:48,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1337445797, now seen corresponding path program 64 times [2021-11-09 08:52:48,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:48,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327890313] [2021-11-09 08:52:48,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:48,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:50,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:50,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327890313] [2021-11-09 08:52:50,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327890313] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:50,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660392727] [2021-11-09 08:52:50,025 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:52:50,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:50,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:50,026 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:50,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process [2021-11-09 08:52:56,480 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:52:56,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:52:56,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-09 08:52:56,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:52:57,342 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:57,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660392727] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:57,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:52:57,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-11-09 08:52:57,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875430860] [2021-11-09 08:52:57,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-09 08:52:57,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:52:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-09 08:52:57,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-11-09 08:52:57,344 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:57,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:52:57,554 INFO L93 Difference]: Finished difference Result 334 states and 334 transitions. [2021-11-09 08:52:57,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-09 08:52:57,555 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-11-09 08:52:57,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:52:57,556 INFO L225 Difference]: With dead ends: 334 [2021-11-09 08:52:57,556 INFO L226 Difference]: Without dead ends: 333 [2021-11-09 08:52:57,556 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-11-09 08:52:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-09 08:52:57,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 332. [2021-11-09 08:52:57,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 330 states have (on average 1.006060606060606) internal successors, (332), 331 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:57,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 332 transitions. [2021-11-09 08:52:57,562 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 332 transitions. Word has length 325 [2021-11-09 08:52:57,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:52:57,562 INFO L470 AbstractCegarLoop]: Abstraction has 332 states and 332 transitions. [2021-11-09 08:52:57,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:52:57,562 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 332 transitions. [2021-11-09 08:52:57,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-09 08:52:57,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:52:57,564 INFO L513 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 64, 1, 1, 1, 1] [2021-11-09 08:52:57,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Ended with exit code 0 [2021-11-09 08:52:57,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 128 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable134 [2021-11-09 08:52:57,764 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:52:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:52:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash -563816849, now seen corresponding path program 64 times [2021-11-09 08:52:57,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:52:57,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911652009] [2021-11-09 08:52:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:52:57,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:52:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:52:59,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10400 backedges. 0 proven. 10400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:52:59,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:52:59,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911652009] [2021-11-09 08:52:59,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911652009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:52:59,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099503637] [2021-11-09 08:52:59,590 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-09 08:52:59,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:52:59,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:52:59,591 INFO L229 MonitoredProcess]: Starting monitored process 129 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:52:59,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Waiting until timeout for monitored process [2021-11-09 08:53:06,567 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-09 08:53:06,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:53:06,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-09 08:53:06,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:53:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 10400 backedges. 0 proven. 10400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:07,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099503637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:07,448 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:53:07,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-11-09 08:53:07,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790521915] [2021-11-09 08:53:07,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-09 08:53:07,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:53:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-09 08:53:07,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-11-09 08:53:07,450 INFO L87 Difference]: Start difference. First operand 332 states and 332 transitions. Second operand has 67 states, 66 states have (on average 4.96969696969697) internal successors, (328), 67 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:07,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:53:07,662 INFO L93 Difference]: Finished difference Result 336 states and 336 transitions. [2021-11-09 08:53:07,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-09 08:53:07,663 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 4.96969696969697) internal successors, (328), 67 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2021-11-09 08:53:07,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:53:07,664 INFO L225 Difference]: With dead ends: 336 [2021-11-09 08:53:07,664 INFO L226 Difference]: Without dead ends: 335 [2021-11-09 08:53:07,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-11-09 08:53:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-09 08:53:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2021-11-09 08:53:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 333 states have (on average 1.006006006006006) internal successors, (335), 334 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 335 transitions. [2021-11-09 08:53:07,670 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 335 transitions. Word has length 328 [2021-11-09 08:53:07,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:53:07,670 INFO L470 AbstractCegarLoop]: Abstraction has 335 states and 335 transitions. [2021-11-09 08:53:07,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 4.96969696969697) internal successors, (328), 67 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:07,670 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 335 transitions. [2021-11-09 08:53:07,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-09 08:53:07,672 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:53:07,672 INFO L513 BasicCegarLoop]: trace histogram [66, 65, 65, 65, 65, 1, 1, 1, 1] [2021-11-09 08:53:07,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (129)] Forceful destruction successful, exit code 0 [2021-11-09 08:53:07,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 129 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable135 [2021-11-09 08:53:07,873 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:53:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:53:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash -662111119, now seen corresponding path program 65 times [2021-11-09 08:53:07,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:53:07,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678157402] [2021-11-09 08:53:07,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:53:07,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:53:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:53:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:10,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:53:10,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678157402] [2021-11-09 08:53:10,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678157402] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:10,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723478303] [2021-11-09 08:53:10,080 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:53:10,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:10,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:53:10,081 INFO L229 MonitoredProcess]: Starting monitored process 130 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:53:10,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (130)] Waiting until timeout for monitored process [2021-11-09 08:53:18,853 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-11-09 08:53:18,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:53:18,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-09 08:53:18,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:53:19,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:19,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723478303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:19,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:53:19,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 67 [2021-11-09 08:53:19,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465419043] [2021-11-09 08:53:19,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-11-09 08:53:19,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:53:19,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-11-09 08:53:19,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-11-09 08:53:19,804 INFO L87 Difference]: Start difference. First operand 335 states and 335 transitions. Second operand has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:20,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:53:20,011 INFO L93 Difference]: Finished difference Result 339 states and 339 transitions. [2021-11-09 08:53:20,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-09 08:53:20,012 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-11-09 08:53:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:53:20,013 INFO L225 Difference]: With dead ends: 339 [2021-11-09 08:53:20,013 INFO L226 Difference]: Without dead ends: 338 [2021-11-09 08:53:20,013 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-11-09 08:53:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-11-09 08:53:20,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 337. [2021-11-09 08:53:20,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.0059701492537314) internal successors, (337), 336 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 337 transitions. [2021-11-09 08:53:20,019 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 337 transitions. Word has length 330 [2021-11-09 08:53:20,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:53:20,020 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 337 transitions. [2021-11-09 08:53:20,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 337 transitions. [2021-11-09 08:53:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-09 08:53:20,022 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:53:20,022 INFO L513 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 65, 1, 1, 1, 1] [2021-11-09 08:53:20,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (130)] Forceful destruction successful, exit code 0 [2021-11-09 08:53:20,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 130 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable136 [2021-11-09 08:53:20,222 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:53:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:53:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1832494115, now seen corresponding path program 65 times [2021-11-09 08:53:20,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:53:20,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113167465] [2021-11-09 08:53:20,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:53:20,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:53:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:53:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 10725 backedges. 0 proven. 10725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:22,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:53:22,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113167465] [2021-11-09 08:53:22,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113167465] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:22,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352186070] [2021-11-09 08:53:22,372 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-09 08:53:22,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:22,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:53:22,373 INFO L229 MonitoredProcess]: Starting monitored process 131 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:53:22,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Waiting until timeout for monitored process [2021-11-09 08:53:31,290 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-11-09 08:53:31,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:53:31,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 67 conjunts are in the unsatisfiable core [2021-11-09 08:53:31,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:53:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 10725 backedges. 0 proven. 10725 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:32,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352186070] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:32,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:53:32,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 67 [2021-11-09 08:53:32,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458108172] [2021-11-09 08:53:32,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-11-09 08:53:32,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:53:32,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-11-09 08:53:32,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-11-09 08:53:32,303 INFO L87 Difference]: Start difference. First operand 337 states and 337 transitions. Second operand has 68 states, 67 states have (on average 4.970149253731344) internal successors, (333), 68 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:53:32,516 INFO L93 Difference]: Finished difference Result 341 states and 341 transitions. [2021-11-09 08:53:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-11-09 08:53:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 4.970149253731344) internal successors, (333), 68 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 333 [2021-11-09 08:53:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:53:32,518 INFO L225 Difference]: With dead ends: 341 [2021-11-09 08:53:32,518 INFO L226 Difference]: Without dead ends: 340 [2021-11-09 08:53:32,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-11-09 08:53:32,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-11-09 08:53:32,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-11-09 08:53:32,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 338 states have (on average 1.0059171597633136) internal successors, (340), 339 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 340 transitions. [2021-11-09 08:53:32,526 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 340 transitions. Word has length 333 [2021-11-09 08:53:32,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:53:32,526 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 340 transitions. [2021-11-09 08:53:32,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 4.970149253731344) internal successors, (333), 68 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 340 transitions. [2021-11-09 08:53:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-09 08:53:32,528 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:53:32,528 INFO L513 BasicCegarLoop]: trace histogram [67, 66, 66, 66, 66, 1, 1, 1, 1] [2021-11-09 08:53:32,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (131)] Forceful destruction successful, exit code 0 [2021-11-09 08:53:32,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 131 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable137 [2021-11-09 08:53:32,729 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:53:32,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:53:32,729 INFO L85 PathProgramCache]: Analyzing trace with hash 90254629, now seen corresponding path program 66 times [2021-11-09 08:53:32,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:53:32,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129729907] [2021-11-09 08:53:32,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:53:32,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:53:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:53:34,878 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:34,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:53:34,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129729907] [2021-11-09 08:53:34,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129729907] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:34,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681406266] [2021-11-09 08:53:34,878 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:53:34,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:34,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:53:34,879 INFO L229 MonitoredProcess]: Starting monitored process 132 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:53:34,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Waiting until timeout for monitored process [2021-11-09 08:53:43,423 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-11-09 08:53:43,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:53:43,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-09 08:53:43,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:53:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:44,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681406266] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:44,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:53:44,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-11-09 08:53:44,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115076885] [2021-11-09 08:53:44,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-09 08:53:44,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:53:44,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-09 08:53:44,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-11-09 08:53:44,388 INFO L87 Difference]: Start difference. First operand 340 states and 340 transitions. Second operand has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:44,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:53:44,594 INFO L93 Difference]: Finished difference Result 344 states and 344 transitions. [2021-11-09 08:53:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-09 08:53:44,594 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-11-09 08:53:44,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:53:44,595 INFO L225 Difference]: With dead ends: 344 [2021-11-09 08:53:44,595 INFO L226 Difference]: Without dead ends: 343 [2021-11-09 08:53:44,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-11-09 08:53:44,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2021-11-09 08:53:44,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2021-11-09 08:53:44,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 340 states have (on average 1.0058823529411764) internal successors, (342), 341 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:44,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 342 transitions. [2021-11-09 08:53:44,601 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 342 transitions. Word has length 335 [2021-11-09 08:53:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:53:44,602 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 342 transitions. [2021-11-09 08:53:44,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:44,602 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 342 transitions. [2021-11-09 08:53:44,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-09 08:53:44,603 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:53:44,603 INFO L513 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 66, 1, 1, 1, 1] [2021-11-09 08:53:44,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (132)] Forceful destruction successful, exit code 0 [2021-11-09 08:53:44,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138,132 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:44,804 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:53:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:53:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash 126174959, now seen corresponding path program 66 times [2021-11-09 08:53:44,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:53:44,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748788781] [2021-11-09 08:53:44,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:53:44,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:53:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:53:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 11055 backedges. 0 proven. 11055 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:47,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:53:47,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748788781] [2021-11-09 08:53:47,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748788781] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:47,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218741098] [2021-11-09 08:53:47,078 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-09 08:53:47,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:47,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:53:47,079 INFO L229 MonitoredProcess]: Starting monitored process 133 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:53:47,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Waiting until timeout for monitored process [2021-11-09 08:53:55,535 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-11-09 08:53:55,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:53:55,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-09 08:53:55,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:53:56,505 INFO L134 CoverageAnalysis]: Checked inductivity of 11055 backedges. 0 proven. 11055 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:56,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218741098] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:56,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:53:56,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-11-09 08:53:56,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847886218] [2021-11-09 08:53:56,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-09 08:53:56,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:53:56,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-09 08:53:56,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-11-09 08:53:56,507 INFO L87 Difference]: Start difference. First operand 342 states and 342 transitions. Second operand has 69 states, 68 states have (on average 4.970588235294118) internal successors, (338), 69 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:56,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:53:56,704 INFO L93 Difference]: Finished difference Result 346 states and 346 transitions. [2021-11-09 08:53:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-09 08:53:56,705 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.970588235294118) internal successors, (338), 69 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2021-11-09 08:53:56,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:53:56,705 INFO L225 Difference]: With dead ends: 346 [2021-11-09 08:53:56,706 INFO L226 Difference]: Without dead ends: 345 [2021-11-09 08:53:56,706 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-11-09 08:53:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2021-11-09 08:53:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 345. [2021-11-09 08:53:56,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 343 states have (on average 1.0058309037900874) internal successors, (345), 344 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 345 transitions. [2021-11-09 08:53:56,712 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 345 transitions. Word has length 338 [2021-11-09 08:53:56,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:53:56,712 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 345 transitions. [2021-11-09 08:53:56,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.970588235294118) internal successors, (338), 69 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:53:56,713 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 345 transitions. [2021-11-09 08:53:56,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-11-09 08:53:56,715 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:53:56,715 INFO L513 BasicCegarLoop]: trace histogram [68, 67, 67, 67, 67, 1, 1, 1, 1] [2021-11-09 08:53:56,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (133)] Forceful destruction successful, exit code 0 [2021-11-09 08:53:56,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 133 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable139 [2021-11-09 08:53:56,931 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:53:56,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:53:56,932 INFO L85 PathProgramCache]: Analyzing trace with hash 995052785, now seen corresponding path program 67 times [2021-11-09 08:53:56,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:53:56,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455393083] [2021-11-09 08:53:56,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:53:56,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:53:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:53:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:53:59,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:53:59,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455393083] [2021-11-09 08:53:59,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455393083] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:53:59,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984258577] [2021-11-09 08:53:59,022 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:53:59,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:53:59,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:53:59,023 INFO L229 MonitoredProcess]: Starting monitored process 134 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:53:59,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Waiting until timeout for monitored process [2021-11-09 08:54:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:07,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-09 08:54:07,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:54:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:08,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984258577] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:08,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:54:08,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 69 [2021-11-09 08:54:08,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377130250] [2021-11-09 08:54:08,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-11-09 08:54:08,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:54:08,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-11-09 08:54:08,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-11-09 08:54:08,074 INFO L87 Difference]: Start difference. First operand 345 states and 345 transitions. Second operand has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:54:08,269 INFO L93 Difference]: Finished difference Result 349 states and 349 transitions. [2021-11-09 08:54:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-09 08:54:08,270 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2021-11-09 08:54:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:54:08,271 INFO L225 Difference]: With dead ends: 349 [2021-11-09 08:54:08,271 INFO L226 Difference]: Without dead ends: 348 [2021-11-09 08:54:08,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-11-09 08:54:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-09 08:54:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 347. [2021-11-09 08:54:08,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 345 states have (on average 1.0057971014492753) internal successors, (347), 346 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:08,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 347 transitions. [2021-11-09 08:54:08,276 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 347 transitions. Word has length 340 [2021-11-09 08:54:08,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:54:08,277 INFO L470 AbstractCegarLoop]: Abstraction has 347 states and 347 transitions. [2021-11-09 08:54:08,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:08,277 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 347 transitions. [2021-11-09 08:54:08,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-11-09 08:54:08,431 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:54:08,432 INFO L513 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 67, 1, 1, 1, 1] [2021-11-09 08:54:08,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (134)] Forceful destruction successful, exit code 0 [2021-11-09 08:54:08,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140,134 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:08,632 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:54:08,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:54:08,633 INFO L85 PathProgramCache]: Analyzing trace with hash -246709341, now seen corresponding path program 67 times [2021-11-09 08:54:08,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:54:08,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916426059] [2021-11-09 08:54:08,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:54:08,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:54:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 11390 backedges. 0 proven. 11390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:10,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:54:10,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916426059] [2021-11-09 08:54:10,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916426059] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:10,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034167010] [2021-11-09 08:54:10,926 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-09 08:54:10,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:10,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:54:10,927 INFO L229 MonitoredProcess]: Starting monitored process 135 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:54:10,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Waiting until timeout for monitored process [2021-11-09 08:54:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:18,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 69 conjunts are in the unsatisfiable core [2021-11-09 08:54:18,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:54:19,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11390 backedges. 0 proven. 11390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:19,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034167010] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:19,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:54:19,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 69 [2021-11-09 08:54:19,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76019416] [2021-11-09 08:54:19,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-11-09 08:54:19,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:54:19,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-11-09 08:54:19,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-11-09 08:54:19,695 INFO L87 Difference]: Start difference. First operand 347 states and 347 transitions. Second operand has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 70 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:19,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:54:19,903 INFO L93 Difference]: Finished difference Result 351 states and 351 transitions. [2021-11-09 08:54:19,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-11-09 08:54:19,904 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 70 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 343 [2021-11-09 08:54:19,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:54:19,904 INFO L225 Difference]: With dead ends: 351 [2021-11-09 08:54:19,904 INFO L226 Difference]: Without dead ends: 350 [2021-11-09 08:54:19,905 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-11-09 08:54:19,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-09 08:54:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2021-11-09 08:54:19,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 348 states have (on average 1.0057471264367817) internal successors, (350), 349 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 350 transitions. [2021-11-09 08:54:19,910 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 350 transitions. Word has length 343 [2021-11-09 08:54:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:54:19,914 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 350 transitions. [2021-11-09 08:54:19,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.971014492753623) internal successors, (343), 70 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:19,914 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 350 transitions. [2021-11-09 08:54:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-09 08:54:19,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:54:19,916 INFO L513 BasicCegarLoop]: trace histogram [69, 68, 68, 68, 68, 1, 1, 1, 1] [2021-11-09 08:54:19,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (135)] Forceful destruction successful, exit code 0 [2021-11-09 08:54:20,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141,135 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:20,116 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:54:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:54:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash -864473947, now seen corresponding path program 68 times [2021-11-09 08:54:20,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:54:20,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281509017] [2021-11-09 08:54:20,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:54:20,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:54:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:22,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:54:22,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281509017] [2021-11-09 08:54:22,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281509017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:22,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702778713] [2021-11-09 08:54:22,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:54:22,497 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:22,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:54:22,503 INFO L229 MonitoredProcess]: Starting monitored process 136 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:54:22,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Waiting until timeout for monitored process [2021-11-09 08:54:30,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:54:30,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:54:30,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 70 conjunts are in the unsatisfiable core [2021-11-09 08:54:30,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:54:30,983 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:30,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702778713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:30,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:54:30,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-11-09 08:54:30,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627862746] [2021-11-09 08:54:30,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-09 08:54:30,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:54:30,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-09 08:54:30,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-11-09 08:54:30,985 INFO L87 Difference]: Start difference. First operand 350 states and 350 transitions. Second operand has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:31,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:54:31,162 INFO L93 Difference]: Finished difference Result 354 states and 354 transitions. [2021-11-09 08:54:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-09 08:54:31,163 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2021-11-09 08:54:31,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:54:31,163 INFO L225 Difference]: With dead ends: 354 [2021-11-09 08:54:31,163 INFO L226 Difference]: Without dead ends: 353 [2021-11-09 08:54:31,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-11-09 08:54:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-09 08:54:31,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 352. [2021-11-09 08:54:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 350 states have (on average 1.0057142857142858) internal successors, (352), 351 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 352 transitions. [2021-11-09 08:54:31,169 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 352 transitions. Word has length 345 [2021-11-09 08:54:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:54:31,169 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 352 transitions. [2021-11-09 08:54:31,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 352 transitions. [2021-11-09 08:54:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-11-09 08:54:31,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:54:31,171 INFO L513 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 68, 1, 1, 1, 1] [2021-11-09 08:54:31,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (136)] Forceful destruction successful, exit code 0 [2021-11-09 08:54:31,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,136 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:31,371 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:54:31,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:54:31,372 INFO L85 PathProgramCache]: Analyzing trace with hash -919398545, now seen corresponding path program 68 times [2021-11-09 08:54:31,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:54:31,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387692989] [2021-11-09 08:54:31,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:54:31,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:54:31,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:33,548 INFO L134 CoverageAnalysis]: Checked inductivity of 11730 backedges. 0 proven. 11730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:33,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:54:33,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387692989] [2021-11-09 08:54:33,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387692989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:33,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908922911] [2021-11-09 08:54:33,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-09 08:54:33,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:33,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:54:33,550 INFO L229 MonitoredProcess]: Starting monitored process 137 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:54:33,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Waiting until timeout for monitored process [2021-11-09 08:54:41,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-09 08:54:41,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:54:41,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 70 conjunts are in the unsatisfiable core [2021-11-09 08:54:41,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:54:42,381 INFO L134 CoverageAnalysis]: Checked inductivity of 11730 backedges. 0 proven. 11730 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:42,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908922911] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:42,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:54:42,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-11-09 08:54:42,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043852317] [2021-11-09 08:54:42,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-09 08:54:42,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:54:42,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-09 08:54:42,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-11-09 08:54:42,383 INFO L87 Difference]: Start difference. First operand 352 states and 352 transitions. Second operand has 71 states, 70 states have (on average 4.9714285714285715) internal successors, (348), 71 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:54:42,595 INFO L93 Difference]: Finished difference Result 356 states and 356 transitions. [2021-11-09 08:54:42,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-09 08:54:42,596 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.9714285714285715) internal successors, (348), 71 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 348 [2021-11-09 08:54:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:54:42,596 INFO L225 Difference]: With dead ends: 356 [2021-11-09 08:54:42,596 INFO L226 Difference]: Without dead ends: 355 [2021-11-09 08:54:42,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-11-09 08:54:42,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-09 08:54:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2021-11-09 08:54:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 353 states have (on average 1.0056657223796035) internal successors, (355), 354 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:42,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 355 transitions. [2021-11-09 08:54:42,602 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 355 transitions. Word has length 348 [2021-11-09 08:54:42,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:54:42,603 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 355 transitions. [2021-11-09 08:54:42,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.9714285714285715) internal successors, (348), 71 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:42,603 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 355 transitions. [2021-11-09 08:54:42,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-09 08:54:42,604 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:54:42,604 INFO L513 BasicCegarLoop]: trace histogram [70, 69, 69, 69, 69, 1, 1, 1, 1] [2021-11-09 08:54:42,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (137)] Forceful destruction successful, exit code 0 [2021-11-09 08:54:42,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143,137 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:42,805 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:54:42,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:54:42,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1221262705, now seen corresponding path program 69 times [2021-11-09 08:54:42,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:54:42,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061861801] [2021-11-09 08:54:42,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:54:42,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:54:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:44,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:54:44,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061861801] [2021-11-09 08:54:44,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061861801] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:44,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059559971] [2021-11-09 08:54:44,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:54:44,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:44,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:54:44,866 INFO L229 MonitoredProcess]: Starting monitored process 138 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:54:44,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Waiting until timeout for monitored process [2021-11-09 08:54:53,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-11-09 08:54:53,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-09 08:54:53,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 71 conjunts are in the unsatisfiable core [2021-11-09 08:54:53,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:54:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:54,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059559971] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:54,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-09 08:54:54,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 71 [2021-11-09 08:54:54,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281151221] [2021-11-09 08:54:54,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-11-09 08:54:54,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:54:54,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-11-09 08:54:54,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-11-09 08:54:54,017 INFO L87 Difference]: Start difference. First operand 355 states and 355 transitions. Second operand has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:54:54,224 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2021-11-09 08:54:54,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-11-09 08:54:54,224 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-11-09 08:54:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:54:54,225 INFO L225 Difference]: With dead ends: 359 [2021-11-09 08:54:54,225 INFO L226 Difference]: Without dead ends: 358 [2021-11-09 08:54:54,226 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-11-09 08:54:54,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-09 08:54:54,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2021-11-09 08:54:54,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 355 states have (on average 1.0056338028169014) internal successors, (357), 356 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:54,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 357 transitions. [2021-11-09 08:54:54,231 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 357 transitions. Word has length 350 [2021-11-09 08:54:54,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:54:54,232 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 357 transitions. [2021-11-09 08:54:54,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:54:54,232 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 357 transitions. [2021-11-09 08:54:54,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-09 08:54:54,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:54:54,233 INFO L513 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 69, 1, 1, 1, 1] [2021-11-09 08:54:54,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (138)] Forceful destruction successful, exit code 0 [2021-11-09 08:54:54,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 138 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable144 [2021-11-09 08:54:54,434 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-09 08:54:54,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:54:54,434 INFO L85 PathProgramCache]: Analyzing trace with hash -30670045, now seen corresponding path program 69 times [2021-11-09 08:54:54,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:54:54,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44955212] [2021-11-09 08:54:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:54:54,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:54:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:54:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12075 backedges. 0 proven. 12075 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:54:56,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:54:56,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44955212] [2021-11-09 08:54:56,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44955212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-09 08:54:56,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689085893] [2021-11-09 08:54:56,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-09 08:54:56,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 08:54:56,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:54:56,899 INFO L229 MonitoredProcess]: Starting monitored process 139 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 08:54:56,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a729c891-66d3-4ec5-acc0-84db37a49d6e/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (139)] Waiting until timeout for monitored process