./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg --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 d5140694c8c74c602573172389066b4fd9e65df8121f12dcdad1dbbd28b45e38 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:35:11,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:35:11,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:35:11,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:35:11,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:35:11,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:35:11,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:35:11,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:35:11,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:35:11,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:35:11,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:35:11,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:35:11,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:35:11,816 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:35:11,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:35:11,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:35:11,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:35:11,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:35:11,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:35:11,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:35:11,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:35:11,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:35:11,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:35:11,852 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:35:11,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:35:11,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:35:11,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:35:11,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:35:11,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:35:11,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:35:11,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:35:11,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:35:11,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:35:11,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:35:11,872 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:35:11,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:35:11,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:35:11,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:35:11,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:35:11,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:35:11,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:35:11,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-28 09:35:11,927 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:35:11,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:35:11,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:35:11,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:35:11,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:35:11,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:35:11,938 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:35:11,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:35:11,939 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:35:11,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:35:11,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:35:11,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:35:11,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:35:11,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:35:11,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:35:11,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:35:11,942 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-28 09:35:11,942 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:35:11,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:35:11,943 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:35:11,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:35:11,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:35:11,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:35:11,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:35:11,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:35:11,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:35:11,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:35:11,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:35:11,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:35:11,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:35:11,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:35:11,946 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:35:11,946 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_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5140694c8c74c602573172389066b4fd9e65df8121f12dcdad1dbbd28b45e38 [2021-10-28 09:35:12,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:35:12,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:35:12,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:35:12,292 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:35:12,293 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:35:12,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-28 09:35:12,379 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/data/9cbf5c9be/f64fdc63f0f9416bbb4ff23e20d790a3/FLAG2d7e89102 [2021-10-28 09:35:12,893 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:35:12,894 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-10-28 09:35:12,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/data/9cbf5c9be/f64fdc63f0f9416bbb4ff23e20d790a3/FLAG2d7e89102 [2021-10-28 09:35:13,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/data/9cbf5c9be/f64fdc63f0f9416bbb4ff23e20d790a3 [2021-10-28 09:35:13,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:35:13,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:35:13,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:35:13,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:35:13,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:35:13,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792f890d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13, skipping insertion in model container [2021-10-28 09:35:13,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:35:13,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:35:13,504 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_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-28 09:35:13,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:35:13,567 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:35:13,581 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_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[423,436] [2021-10-28 09:35:13,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:35:13,629 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:35:13,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13 WrapperNode [2021-10-28 09:35:13,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:35:13,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:35:13,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:35:13,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:35:13,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:35:13,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:35:13,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:35:13,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:35:13,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:35:13,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:35:13,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:35:13,813 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:35:13,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (1/1) ... [2021-10-28 09:35:13,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:35:13,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:13,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:35:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:35:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:35:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:35:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:35:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:35:14,590 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:35:14,591 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-10-28 09:35:14,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:14 BoogieIcfgContainer [2021-10-28 09:35:14,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:35:14,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:35:14,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:35:14,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:35:14,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:35:13" (1/3) ... [2021-10-28 09:35:14,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fa06c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:35:14, skipping insertion in model container [2021-10-28 09:35:14,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:35:13" (2/3) ... [2021-10-28 09:35:14,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14fa06c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:35:14, skipping insertion in model container [2021-10-28 09:35:14,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:14" (3/3) ... [2021-10-28 09:35:14,614 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2021-10-28 09:35:14,621 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:35:14,621 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2021-10-28 09:35:14,675 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:35:14,683 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 [2021-10-28 09:35:14,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2021-10-28 09:35:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 106 states have (on average 1.8396226415094339) internal successors, (195), 142 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) [2021-10-28 09:35:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:35:14,714 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:14,715 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:14,715 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:14,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:14,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-10-28 09:35:14,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:14,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082763717] [2021-10-28 09:35:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:14,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:14,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:14,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:14,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082763717] [2021-10-28 09:35:14,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082763717] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:14,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:14,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:35:14,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34710328] [2021-10-28 09:35:14,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:35:14,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:14,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:35:14,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:35:14,948 INFO L87 Difference]: Start difference. First operand has 143 states, 106 states have (on average 1.8396226415094339) internal successors, (195), 142 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-28 09:35:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:15,008 INFO L93 Difference]: Finished difference Result 266 states and 362 transitions. [2021-10-28 09:35:15,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:35:15,010 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2021-10-28 09:35:15,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:15,022 INFO L225 Difference]: With dead ends: 266 [2021-10-28 09:35:15,023 INFO L226 Difference]: Without dead ends: 128 [2021-10-28 09:35:15,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:35:15,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-28 09:35:15,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-10-28 09:35:15,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 94 states have (on average 1.648936170212766) internal successors, (155), 127 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) [2021-10-28 09:35:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 155 transitions. [2021-10-28 09:35:15,077 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 155 transitions. Word has length 7 [2021-10-28 09:35:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:15,078 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 155 transitions. [2021-10-28 09:35:15,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2021-10-28 09:35:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 155 transitions. [2021-10-28 09:35:15,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-28 09:35:15,079 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:15,079 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:15,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:35:15,080 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:15,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:15,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-10-28 09:35:15,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:15,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491648948] [2021-10-28 09:35:15,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:15,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:15,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:15,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:15,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491648948] [2021-10-28 09:35:15,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491648948] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:15,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:15,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:35:15,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361251939] [2021-10-28 09:35:15,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:35:15,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:15,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:35:15,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:35:15,148 INFO L87 Difference]: Start difference. First operand 128 states and 155 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) [2021-10-28 09:35:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:15,386 INFO L93 Difference]: Finished difference Result 267 states and 327 transitions. [2021-10-28 09:35:15,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:35:15,394 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 [2021-10-28 09:35:15,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:15,396 INFO L225 Difference]: With dead ends: 267 [2021-10-28 09:35:15,396 INFO L226 Difference]: Without dead ends: 156 [2021-10-28 09:35:15,398 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 [2021-10-28 09:35:15,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-28 09:35:15,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 152. [2021-10-28 09:35:15,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 118 states have (on average 1.5338983050847457) internal successors, (181), 151 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 181 transitions. [2021-10-28 09:35:15,436 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 181 transitions. Word has length 7 [2021-10-28 09:35:15,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:15,436 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 181 transitions. [2021-10-28 09:35:15,437 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) [2021-10-28 09:35:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 181 transitions. [2021-10-28 09:35:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:35:15,438 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:15,438 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:15,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:35:15,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:15,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:15,440 INFO L85 PathProgramCache]: Analyzing trace with hash 641273941, now seen corresponding path program 1 times [2021-10-28 09:35:15,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:15,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183554337] [2021-10-28 09:35:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:15,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:15,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:15,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183554337] [2021-10-28 09:35:15,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183554337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:15,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:15,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:15,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766817633] [2021-10-28 09:35:15,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:15,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:15,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:15,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:15,557 INFO L87 Difference]: Start difference. First operand 152 states and 181 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) [2021-10-28 09:35:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:15,780 INFO L93 Difference]: Finished difference Result 206 states and 240 transitions. [2021-10-28 09:35:15,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:15,781 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 [2021-10-28 09:35:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:15,787 INFO L225 Difference]: With dead ends: 206 [2021-10-28 09:35:15,787 INFO L226 Difference]: Without dead ends: 202 [2021-10-28 09:35:15,789 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:15,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-28 09:35:15,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 154. [2021-10-28 09:35:15,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 122 states have (on average 1.5) internal successors, (183), 153 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) [2021-10-28 09:35:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2021-10-28 09:35:15,814 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 11 [2021-10-28 09:35:15,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:15,814 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2021-10-28 09:35:15,815 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) [2021-10-28 09:35:15,815 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2021-10-28 09:35:15,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:35:15,822 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:15,822 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:15,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:35:15,823 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:15,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:15,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-10-28 09:35:15,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:15,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838017992] [2021-10-28 09:35:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:15,825 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:15,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:15,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838017992] [2021-10-28 09:35:15,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838017992] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:15,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:15,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:15,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610645872] [2021-10-28 09:35:15,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:15,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:15,880 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:16,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:16,079 INFO L93 Difference]: Finished difference Result 335 states and 396 transitions. [2021-10-28 09:35:16,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:16,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-10-28 09:35:16,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:16,082 INFO L225 Difference]: With dead ends: 335 [2021-10-28 09:35:16,082 INFO L226 Difference]: Without dead ends: 214 [2021-10-28 09:35:16,083 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:16,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-28 09:35:16,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 160. [2021-10-28 09:35:16,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 130 states have (on average 1.4692307692307693) internal successors, (191), 159 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:16,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2021-10-28 09:35:16,121 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 12 [2021-10-28 09:35:16,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:16,121 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2021-10-28 09:35:16,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:16,122 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2021-10-28 09:35:16,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:35:16,123 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:16,124 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:16,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 09:35:16,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:16,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:16,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-10-28 09:35:16,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:16,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114118321] [2021-10-28 09:35:16,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:16,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:16,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:16,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114118321] [2021-10-28 09:35:16,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114118321] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:16,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:16,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:16,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116303131] [2021-10-28 09:35:16,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:16,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:16,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:16,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:16,230 INFO L87 Difference]: Start difference. First operand 160 states and 191 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) [2021-10-28 09:35:16,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:16,361 INFO L93 Difference]: Finished difference Result 211 states and 248 transitions. [2021-10-28 09:35:16,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:16,362 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 [2021-10-28 09:35:16,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:16,364 INFO L225 Difference]: With dead ends: 211 [2021-10-28 09:35:16,364 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 09:35:16,365 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:35:16,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 09:35:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 157. [2021-10-28 09:35:16,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 156 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 189 transitions. [2021-10-28 09:35:16,376 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 189 transitions. Word has length 13 [2021-10-28 09:35:16,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:16,376 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 189 transitions. [2021-10-28 09:35:16,377 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) [2021-10-28 09:35:16,377 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 189 transitions. [2021-10-28 09:35:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-28 09:35:16,378 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:16,378 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:16,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 09:35:16,379 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:16,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:16,380 INFO L85 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-10-28 09:35:16,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:16,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891350212] [2021-10-28 09:35:16,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:16,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:16,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:16,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:16,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891350212] [2021-10-28 09:35:16,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891350212] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:16,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754285859] [2021-10-28 09:35:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:16,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:16,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:16,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:16,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:35:16,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:16,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 09:35:16,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:16,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754285859] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:16,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:16,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 09:35:16,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899757469] [2021-10-28 09:35:16,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:16,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:16,680 INFO L87 Difference]: Start difference. First operand 157 states and 189 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) [2021-10-28 09:35:16,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:16,803 INFO L93 Difference]: Finished difference Result 248 states and 291 transitions. [2021-10-28 09:35:16,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:16,803 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 [2021-10-28 09:35:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:16,806 INFO L225 Difference]: With dead ends: 248 [2021-10-28 09:35:16,806 INFO L226 Difference]: Without dead ends: 244 [2021-10-28 09:35:16,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:16,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-28 09:35:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 150. [2021-10-28 09:35:16,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 128 states have (on average 1.421875) internal successors, (182), 149 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) [2021-10-28 09:35:16,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2021-10-28 09:35:16,820 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 13 [2021-10-28 09:35:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:16,820 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2021-10-28 09:35:16,820 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) [2021-10-28 09:35:16,821 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2021-10-28 09:35:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 09:35:16,826 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:16,826 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:16,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:35:17,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:17,052 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:17,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash 662586488, now seen corresponding path program 1 times [2021-10-28 09:35:17,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:17,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712112272] [2021-10-28 09:35:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:17,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:17,091 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:17,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712112272] [2021-10-28 09:35:17,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712112272] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:17,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:17,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:35:17,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602294115] [2021-10-28 09:35:17,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:35:17,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:17,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:35:17,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:35:17,095 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:17,192 INFO L93 Difference]: Finished difference Result 198 states and 233 transitions. [2021-10-28 09:35:17,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:35:17,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2021-10-28 09:35:17,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:17,195 INFO L225 Difference]: With dead ends: 198 [2021-10-28 09:35:17,195 INFO L226 Difference]: Without dead ends: 194 [2021-10-28 09:35:17,196 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 [2021-10-28 09:35:17,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-28 09:35:17,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 142. [2021-10-28 09:35:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 124 states have (on average 1.403225806451613) internal successors, (174), 141 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2021-10-28 09:35:17,208 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 14 [2021-10-28 09:35:17,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:17,214 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2021-10-28 09:35:17,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,215 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2021-10-28 09:35:17,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-28 09:35:17,223 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:17,223 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:17,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 09:35:17,224 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:17,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:17,225 INFO L85 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-10-28 09:35:17,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:17,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565890706] [2021-10-28 09:35:17,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:17,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:17,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:17,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565890706] [2021-10-28 09:35:17,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565890706] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:17,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:17,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:17,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250441862] [2021-10-28 09:35:17,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:17,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:17,317 INFO L87 Difference]: Start difference. First operand 142 states and 174 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) [2021-10-28 09:35:17,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:17,426 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2021-10-28 09:35:17,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:17,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 [2021-10-28 09:35:17,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:17,428 INFO L225 Difference]: With dead ends: 196 [2021-10-28 09:35:17,428 INFO L226 Difference]: Without dead ends: 194 [2021-10-28 09:35:17,429 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:35:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-28 09:35:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 144. [2021-10-28 09:35:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.3858267716535433) internal successors, (176), 143 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 176 transitions. [2021-10-28 09:35:17,440 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 176 transitions. Word has length 15 [2021-10-28 09:35:17,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:17,441 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 176 transitions. [2021-10-28 09:35:17,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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) [2021-10-28 09:35:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 176 transitions. [2021-10-28 09:35:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-28 09:35:17,443 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:17,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:17,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 09:35:17,444 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:17,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:17,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1172929667, now seen corresponding path program 1 times [2021-10-28 09:35:17,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:17,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809582658] [2021-10-28 09:35:17,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:17,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:17,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:17,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809582658] [2021-10-28 09:35:17,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809582658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:17,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:17,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:17,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009421613] [2021-10-28 09:35:17,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:17,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:17,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:17,550 INFO L87 Difference]: Start difference. First operand 144 states and 176 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:17,654 INFO L93 Difference]: Finished difference Result 194 states and 231 transitions. [2021-10-28 09:35:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:17,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2021-10-28 09:35:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:17,657 INFO L225 Difference]: With dead ends: 194 [2021-10-28 09:35:17,657 INFO L226 Difference]: Without dead ends: 192 [2021-10-28 09:35:17,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:35:17,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-28 09:35:17,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 138. [2021-10-28 09:35:17,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 123 states have (on average 1.3739837398373984) internal successors, (169), 137 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 169 transitions. [2021-10-28 09:35:17,675 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 169 transitions. Word has length 16 [2021-10-28 09:35:17,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:17,675 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 169 transitions. [2021-10-28 09:35:17,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,676 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 169 transitions. [2021-10-28 09:35:17,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-28 09:35:17,677 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:17,677 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:17,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 09:35:17,678 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:17,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1012839294, now seen corresponding path program 1 times [2021-10-28 09:35:17,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:17,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862211107] [2021-10-28 09:35:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:17,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:17,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:35:17,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:17,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862211107] [2021-10-28 09:35:17,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862211107] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:17,747 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:17,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:17,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071323656] [2021-10-28 09:35:17,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:17,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:17,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:17,756 INFO L87 Difference]: Start difference. First operand 138 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:17,850 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2021-10-28 09:35:17,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:17,851 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 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 17 [2021-10-28 09:35:17,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:17,853 INFO L225 Difference]: With dead ends: 232 [2021-10-28 09:35:17,853 INFO L226 Difference]: Without dead ends: 228 [2021-10-28 09:35:17,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-28 09:35:17,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 129. [2021-10-28 09:35:17,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 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) [2021-10-28 09:35:17,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 160 transitions. [2021-10-28 09:35:17,866 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 160 transitions. Word has length 17 [2021-10-28 09:35:17,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:17,866 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 160 transitions. [2021-10-28 09:35:17,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 160 transitions. [2021-10-28 09:35:17,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 09:35:17,867 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:17,868 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:17,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 09:35:17,869 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:17,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:17,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1503531701, now seen corresponding path program 1 times [2021-10-28 09:35:17,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:17,870 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82128902] [2021-10-28 09:35:17,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:17,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:17,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:17,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82128902] [2021-10-28 09:35:17,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82128902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:17,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:17,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:17,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327752088] [2021-10-28 09:35:17,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:17,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:17,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:17,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:17,941 INFO L87 Difference]: Start difference. First operand 129 states and 160 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2021-10-28 09:35:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:18,037 INFO L93 Difference]: Finished difference Result 179 states and 214 transitions. [2021-10-28 09:35:18,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:18,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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 [2021-10-28 09:35:18,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:18,041 INFO L225 Difference]: With dead ends: 179 [2021-10-28 09:35:18,041 INFO L226 Difference]: Without dead ends: 177 [2021-10-28 09:35:18,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:35:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-28 09:35:18,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 124. [2021-10-28 09:35:18,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 114 states have (on average 1.3596491228070176) internal successors, (155), 123 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) [2021-10-28 09:35:18,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 155 transitions. [2021-10-28 09:35:18,057 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 155 transitions. Word has length 18 [2021-10-28 09:35:18,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:18,058 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 155 transitions. [2021-10-28 09:35:18,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 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) [2021-10-28 09:35:18,059 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 155 transitions. [2021-10-28 09:35:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-28 09:35:18,059 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:18,060 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:18,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 09:35:18,060 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:18,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:18,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1714169845, now seen corresponding path program 1 times [2021-10-28 09:35:18,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:18,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260397371] [2021-10-28 09:35:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:18,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:18,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260397371] [2021-10-28 09:35:18,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260397371] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:18,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:18,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:35:18,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103953140] [2021-10-28 09:35:18,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:35:18,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:18,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:35:18,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:35:18,096 INFO L87 Difference]: Start difference. First operand 124 states and 155 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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) [2021-10-28 09:35:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:18,155 INFO L93 Difference]: Finished difference Result 197 states and 243 transitions. [2021-10-28 09:35:18,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:35:18,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 [2021-10-28 09:35:18,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:18,157 INFO L225 Difference]: With dead ends: 197 [2021-10-28 09:35:18,157 INFO L226 Difference]: Without dead ends: 116 [2021-10-28 09:35:18,157 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 [2021-10-28 09:35:18,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-10-28 09:35:18,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-28 09:35:18,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 115 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) [2021-10-28 09:35:18,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 142 transitions. [2021-10-28 09:35:18,167 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 142 transitions. Word has length 20 [2021-10-28 09:35:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:18,167 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 142 transitions. [2021-10-28 09:35:18,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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) [2021-10-28 09:35:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 142 transitions. [2021-10-28 09:35:18,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-28 09:35:18,168 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:18,168 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:18,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 09:35:18,169 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:18,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:18,170 INFO L85 PathProgramCache]: Analyzing trace with hash 120036563, now seen corresponding path program 1 times [2021-10-28 09:35:18,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:18,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378701050] [2021-10-28 09:35:18,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:18,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:18,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378701050] [2021-10-28 09:35:18,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378701050] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:18,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:35:18,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:35:18,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520058491] [2021-10-28 09:35:18,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:35:18,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:35:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:18,249 INFO L87 Difference]: Start difference. First operand 116 states and 142 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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) [2021-10-28 09:35:18,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:18,319 INFO L93 Difference]: Finished difference Result 212 states and 256 transitions. [2021-10-28 09:35:18,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:35:18,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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) Word has length 29 [2021-10-28 09:35:18,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:18,321 INFO L225 Difference]: With dead ends: 212 [2021-10-28 09:35:18,321 INFO L226 Difference]: Without dead ends: 112 [2021-10-28 09:35:18,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:35:18,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-28 09:35:18,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2021-10-28 09:35:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 98 states have (on average 1.316326530612245) internal successors, (129), 107 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-10-28 09:35:18,336 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 29 [2021-10-28 09:35:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:18,336 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-10-28 09:35:18,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 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) [2021-10-28 09:35:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-10-28 09:35:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 09:35:18,340 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:18,341 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:18,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 09:35:18,342 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash -53723030, now seen corresponding path program 1 times [2021-10-28 09:35:18,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:18,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965839483] [2021-10-28 09:35:18,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,412 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:18,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:18,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965839483] [2021-10-28 09:35:18,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965839483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:18,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335053486] [2021-10-28 09:35:18,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:18,415 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:18,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:35:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:18,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 09:35:18,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:18,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335053486] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:18,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:18,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 09:35:18,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982482359] [2021-10-28 09:35:18,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:18,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:18,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:18,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:18,620 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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) [2021-10-28 09:35:18,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:18,732 INFO L93 Difference]: Finished difference Result 266 states and 311 transitions. [2021-10-28 09:35:18,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:35:18,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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 33 [2021-10-28 09:35:18,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:18,734 INFO L225 Difference]: With dead ends: 266 [2021-10-28 09:35:18,734 INFO L226 Difference]: Without dead ends: 177 [2021-10-28 09:35:18,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:18,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-28 09:35:18,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 118. [2021-10-28 09:35:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 117 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 141 transitions. [2021-10-28 09:35:18,745 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 141 transitions. Word has length 33 [2021-10-28 09:35:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:18,745 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 141 transitions. [2021-10-28 09:35:18,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 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) [2021-10-28 09:35:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 141 transitions. [2021-10-28 09:35:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 09:35:18,747 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:18,748 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:18,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:18,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 09:35:18,953 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:18,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:18,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1040699320, now seen corresponding path program 1 times [2021-10-28 09:35:18,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:18,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592928762] [2021-10-28 09:35:18,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:18,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:19,052 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:19,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:19,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592928762] [2021-10-28 09:35:19,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592928762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:19,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51057160] [2021-10-28 09:35:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:19,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:19,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:19,060 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:19,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 09:35:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:19,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:35:19,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:19,290 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:35:19,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51057160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:19,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:19,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2021-10-28 09:35:19,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215539448] [2021-10-28 09:35:19,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:19,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:19,293 INFO L87 Difference]: Start difference. First operand 118 states and 141 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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) [2021-10-28 09:35:19,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:19,436 INFO L93 Difference]: Finished difference Result 224 states and 268 transitions. [2021-10-28 09:35:19,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:35:19,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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 34 [2021-10-28 09:35:19,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:19,440 INFO L225 Difference]: With dead ends: 224 [2021-10-28 09:35:19,440 INFO L226 Difference]: Without dead ends: 101 [2021-10-28 09:35:19,443 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:19,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-28 09:35:19,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-10-28 09:35:19,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 96 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) [2021-10-28 09:35:19,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 113 transitions. [2021-10-28 09:35:19,451 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 113 transitions. Word has length 34 [2021-10-28 09:35:19,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:19,452 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 113 transitions. [2021-10-28 09:35:19,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 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) [2021-10-28 09:35:19,452 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 113 transitions. [2021-10-28 09:35:19,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-28 09:35:19,453 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:19,453 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:19,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:19,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:19,676 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 262910457, now seen corresponding path program 1 times [2021-10-28 09:35:19,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:19,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079865104] [2021-10-28 09:35:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:19,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:19,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:19,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:19,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079865104] [2021-10-28 09:35:19,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079865104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:19,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906226441] [2021-10-28 09:35:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:19,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:19,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:19,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:19,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-28 09:35:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:19,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:35:19,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:20,033 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:35:20,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906226441] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:20,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:20,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-28 09:35:20,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629774855] [2021-10-28 09:35:20,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:20,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:20,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:20,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:20,037 INFO L87 Difference]: Start difference. First operand 97 states and 113 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:20,169 INFO L93 Difference]: Finished difference Result 132 states and 149 transitions. [2021-10-28 09:35:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 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 [2021-10-28 09:35:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:20,172 INFO L225 Difference]: With dead ends: 132 [2021-10-28 09:35:20,172 INFO L226 Difference]: Without dead ends: 101 [2021-10-28 09:35:20,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-28 09:35:20,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2021-10-28 09:35:20,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2873563218390804) internal successors, (112), 96 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) [2021-10-28 09:35:20,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2021-10-28 09:35:20,181 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 38 [2021-10-28 09:35:20,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:20,181 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2021-10-28 09:35:20,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:20,182 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2021-10-28 09:35:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:35:20,182 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:20,182 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:20,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:20,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-28 09:35:20,396 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:20,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:20,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1498651123, now seen corresponding path program 1 times [2021-10-28 09:35:20,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:20,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135533534] [2021-10-28 09:35:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:20,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:20,464 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:20,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:20,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135533534] [2021-10-28 09:35:20,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135533534] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:20,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587635067] [2021-10-28 09:35:20,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:20,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:20,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:20,468 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:20,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-28 09:35:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:20,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:35:20,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:35:20,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587635067] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:20,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:20,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2021-10-28 09:35:20,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688131716] [2021-10-28 09:35:20,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:20,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:20,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:20,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:20,769 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:20,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:20,935 INFO L93 Difference]: Finished difference Result 184 states and 206 transitions. [2021-10-28 09:35:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:20,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 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 [2021-10-28 09:35:20,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:20,938 INFO L225 Difference]: With dead ends: 184 [2021-10-28 09:35:20,938 INFO L226 Difference]: Without dead ends: 152 [2021-10-28 09:35:20,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-28 09:35:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 118. [2021-10-28 09:35:20,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 108 states have (on average 1.2685185185185186) internal successors, (137), 117 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) [2021-10-28 09:35:20,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2021-10-28 09:35:20,963 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 40 [2021-10-28 09:35:20,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:20,964 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2021-10-28 09:35:20,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:20,965 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2021-10-28 09:35:20,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-28 09:35:20,968 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:20,968 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:20,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:21,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-28 09:35:21,180 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:21,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1021308811, now seen corresponding path program 1 times [2021-10-28 09:35:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:21,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51629081] [2021-10-28 09:35:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:21,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:21,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:21,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51629081] [2021-10-28 09:35:21,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51629081] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:21,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863220481] [2021-10-28 09:35:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:21,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:21,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:21,288 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:21,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-28 09:35:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:21,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:35:21,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:21,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:35:21,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863220481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:21,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:21,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2021-10-28 09:35:21,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25579985] [2021-10-28 09:35:21,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:21,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:21,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:21,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:21,644 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:21,855 INFO L93 Difference]: Finished difference Result 153 states and 173 transitions. [2021-10-28 09:35:21,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:35:21,864 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 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 [2021-10-28 09:35:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:21,865 INFO L225 Difference]: With dead ends: 153 [2021-10-28 09:35:21,865 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 09:35:21,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:35:21,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 09:35:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-28 09:35:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.264367816091954) internal successors, (110), 96 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) [2021-10-28 09:35:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2021-10-28 09:35:21,875 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 40 [2021-10-28 09:35:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:21,875 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2021-10-28 09:35:21,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2021-10-28 09:35:21,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-28 09:35:21,877 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:21,877 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:21,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:22,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-28 09:35:22,096 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:22,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:22,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1227759650, now seen corresponding path program 1 times [2021-10-28 09:35:22,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:22,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705928295] [2021-10-28 09:35:22,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:22,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:22,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:22,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:22,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705928295] [2021-10-28 09:35:22,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705928295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:22,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152553721] [2021-10-28 09:35:22,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:22,166 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:22,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:22,173 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:22,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 09:35:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:22,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:35:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:22,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:22,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152553721] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:22,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:22,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-10-28 09:35:22,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992668666] [2021-10-28 09:35:22,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:22,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:22,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:22,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:22,534 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:22,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:22,599 INFO L93 Difference]: Finished difference Result 172 states and 195 transitions. [2021-10-28 09:35:22,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:35:22,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 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 44 [2021-10-28 09:35:22,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:22,601 INFO L225 Difference]: With dead ends: 172 [2021-10-28 09:35:22,601 INFO L226 Difference]: Without dead ends: 99 [2021-10-28 09:35:22,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:35:22,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-28 09:35:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-28 09:35:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 87 states have (on average 1.2528735632183907) internal successors, (109), 96 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:22,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2021-10-28 09:35:22,611 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 44 [2021-10-28 09:35:22,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:22,611 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2021-10-28 09:35:22,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2021-10-28 09:35:22,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-28 09:35:22,612 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:22,613 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:22,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:22,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:22,836 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:22,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:22,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1163341703, now seen corresponding path program 1 times [2021-10-28 09:35:22,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:22,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690317638] [2021-10-28 09:35:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:22,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:22,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:22,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690317638] [2021-10-28 09:35:22,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690317638] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:22,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083676219] [2021-10-28 09:35:22,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:22,896 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:22,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:22,897 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:22,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 09:35:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:35:23,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:23,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083676219] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:23,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:23,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 09:35:23,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337957831] [2021-10-28 09:35:23,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:23,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:23,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:23,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:23,200 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-10-28 09:35:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:23,298 INFO L93 Difference]: Finished difference Result 217 states and 243 transitions. [2021-10-28 09:35:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:35:23,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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 48 [2021-10-28 09:35:23,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:23,300 INFO L225 Difference]: With dead ends: 217 [2021-10-28 09:35:23,301 INFO L226 Difference]: Without dead ends: 147 [2021-10-28 09:35:23,301 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:23,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-28 09:35:23,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 102. [2021-10-28 09:35:23,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 92 states have (on average 1.25) internal successors, (115), 101 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) [2021-10-28 09:35:23,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 115 transitions. [2021-10-28 09:35:23,313 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 115 transitions. Word has length 48 [2021-10-28 09:35:23,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:23,313 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 115 transitions. [2021-10-28 09:35:23,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 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) [2021-10-28 09:35:23,314 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 115 transitions. [2021-10-28 09:35:23,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-28 09:35:23,314 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:23,315 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:23,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:23,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:23,536 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:23,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:23,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1852806157, now seen corresponding path program 2 times [2021-10-28 09:35:23,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:23,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513375018] [2021-10-28 09:35:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:23,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:23,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:23,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:23,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513375018] [2021-10-28 09:35:23,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513375018] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:23,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256523895] [2021-10-28 09:35:23,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:23,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:23,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:23,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:23,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 09:35:23,820 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:35:23,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:23,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:35:23,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:24,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 09:35:24,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256523895] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:24,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:24,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-10-28 09:35:24,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984603587] [2021-10-28 09:35:24,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:24,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:24,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:24,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:24,008 INFO L87 Difference]: Start difference. First operand 102 states and 115 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 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) [2021-10-28 09:35:24,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:24,145 INFO L93 Difference]: Finished difference Result 254 states and 279 transitions. [2021-10-28 09:35:24,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:35:24,146 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 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 49 [2021-10-28 09:35:24,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:24,147 INFO L225 Difference]: With dead ends: 254 [2021-10-28 09:35:24,147 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 09:35:24,148 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 09:35:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 129. [2021-10-28 09:35:24,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.2352941176470589) internal successors, (147), 128 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) [2021-10-28 09:35:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 147 transitions. [2021-10-28 09:35:24,160 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 147 transitions. Word has length 49 [2021-10-28 09:35:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:24,160 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 147 transitions. [2021-10-28 09:35:24,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 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) [2021-10-28 09:35:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 147 transitions. [2021-10-28 09:35:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-28 09:35:24,161 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:24,161 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:24,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:24,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-10-28 09:35:24,377 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:24,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1864699345, now seen corresponding path program 1 times [2021-10-28 09:35:24,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:24,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088872521] [2021-10-28 09:35:24,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:24,378 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:24,487 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:24,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:24,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088872521] [2021-10-28 09:35:24,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088872521] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:24,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561291572] [2021-10-28 09:35:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:24,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:24,492 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:24,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 09:35:24,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:24,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:35:24,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:24,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:24,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561291572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:24,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:24,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 09:35:24,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044707640] [2021-10-28 09:35:24,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 09:35:24,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:35:24,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:24,918 INFO L87 Difference]: Start difference. First operand 129 states and 147 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-10-28 09:35:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:25,090 INFO L93 Difference]: Finished difference Result 231 states and 264 transitions. [2021-10-28 09:35:25,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:35:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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 51 [2021-10-28 09:35:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:25,094 INFO L225 Difference]: With dead ends: 231 [2021-10-28 09:35:25,094 INFO L226 Difference]: Without dead ends: 131 [2021-10-28 09:35:25,094 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:35:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-28 09:35:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-10-28 09:35:25,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 119 states have (on average 1.226890756302521) internal successors, (146), 128 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2021-10-28 09:35:25,104 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 51 [2021-10-28 09:35:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:25,104 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2021-10-28 09:35:25,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 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) [2021-10-28 09:35:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2021-10-28 09:35:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-28 09:35:25,105 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:25,105 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:25,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:25,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:25,328 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:25,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:25,328 INFO L85 PathProgramCache]: Analyzing trace with hash 539908934, now seen corresponding path program 1 times [2021-10-28 09:35:25,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:25,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864525523] [2021-10-28 09:35:25,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:25,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:25,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:25,408 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:25,408 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864525523] [2021-10-28 09:35:25,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864525523] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:25,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439431449] [2021-10-28 09:35:25,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:25,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:25,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:25,419 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:25,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 09:35:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:25,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 09:35:25,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:25,761 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:25,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439431449] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:25,762 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:25,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 09:35:25,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682808526] [2021-10-28 09:35:25,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:25,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:25,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:25,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:25,764 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) [2021-10-28 09:35:25,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:25,872 INFO L93 Difference]: Finished difference Result 284 states and 321 transitions. [2021-10-28 09:35:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:25,873 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) Word has length 55 [2021-10-28 09:35:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:25,875 INFO L225 Difference]: With dead ends: 284 [2021-10-28 09:35:25,875 INFO L226 Difference]: Without dead ends: 187 [2021-10-28 09:35:25,875 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:25,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-28 09:35:25,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 134. [2021-10-28 09:35:25,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.2258064516129032) internal successors, (152), 133 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) [2021-10-28 09:35:25,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 152 transitions. [2021-10-28 09:35:25,886 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 152 transitions. Word has length 55 [2021-10-28 09:35:25,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:25,887 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 152 transitions. [2021-10-28 09:35:25,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 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) [2021-10-28 09:35:25,887 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 152 transitions. [2021-10-28 09:35:25,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:35:25,888 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:25,888 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:25,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:26,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:26,112 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:26,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1286189084, now seen corresponding path program 2 times [2021-10-28 09:35:26,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:26,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971981444] [2021-10-28 09:35:26,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:26,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:26,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:26,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971981444] [2021-10-28 09:35:26,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971981444] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:26,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309631759] [2021-10-28 09:35:26,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:26,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:26,212 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:26,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 09:35:26,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:35:26,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:26,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:35:26,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-28 09:35:26,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309631759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:26,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:26,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2021-10-28 09:35:26,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880827171] [2021-10-28 09:35:26,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:35:26,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:35:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:26,680 INFO L87 Difference]: Start difference. First operand 134 states and 152 transitions. Second operand has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 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) [2021-10-28 09:35:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:26,795 INFO L93 Difference]: Finished difference Result 209 states and 230 transitions. [2021-10-28 09:35:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:35:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 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) Word has length 56 [2021-10-28 09:35:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:26,797 INFO L225 Difference]: With dead ends: 209 [2021-10-28 09:35:26,797 INFO L226 Difference]: Without dead ends: 208 [2021-10-28 09:35:26,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:26,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-28 09:35:26,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 156. [2021-10-28 09:35:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.2191780821917808) internal successors, (178), 155 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) [2021-10-28 09:35:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 178 transitions. [2021-10-28 09:35:26,810 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 178 transitions. Word has length 56 [2021-10-28 09:35:26,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:26,811 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 178 transitions. [2021-10-28 09:35:26,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.4) internal successors, (42), 6 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) [2021-10-28 09:35:26,811 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 178 transitions. [2021-10-28 09:35:26,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-10-28 09:35:26,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:26,812 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:26,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:27,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-28 09:35:27,028 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:27,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:27,029 INFO L85 PathProgramCache]: Analyzing trace with hash -979368296, now seen corresponding path program 1 times [2021-10-28 09:35:27,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:27,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492829762] [2021-10-28 09:35:27,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:27,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:27,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:27,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:27,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492829762] [2021-10-28 09:35:27,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492829762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:27,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095495495] [2021-10-28 09:35:27,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:27,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:27,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:27,127 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:27,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-28 09:35:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:27,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:35:27,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:27,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095495495] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:27,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:27,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 09:35:27,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113562619] [2021-10-28 09:35:27,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:27,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:27,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:27,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:27,650 INFO L87 Difference]: Start difference. First operand 156 states and 178 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-10-28 09:35:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:27,836 INFO L93 Difference]: Finished difference Result 280 states and 321 transitions. [2021-10-28 09:35:27,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:27,838 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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 56 [2021-10-28 09:35:27,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:27,840 INFO L225 Difference]: With dead ends: 280 [2021-10-28 09:35:27,840 INFO L226 Difference]: Without dead ends: 158 [2021-10-28 09:35:27,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-28 09:35:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-28 09:35:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 156. [2021-10-28 09:35:27,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.2123287671232876) internal successors, (177), 155 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) [2021-10-28 09:35:27,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 177 transitions. [2021-10-28 09:35:27,852 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 177 transitions. Word has length 56 [2021-10-28 09:35:27,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:27,852 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 177 transitions. [2021-10-28 09:35:27,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 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) [2021-10-28 09:35:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2021-10-28 09:35:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-28 09:35:27,854 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:27,854 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:27,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:28,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-28 09:35:28,068 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:28,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash -940339921, now seen corresponding path program 1 times [2021-10-28 09:35:28,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:28,069 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28400995] [2021-10-28 09:35:28,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:28,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:28,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:28,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28400995] [2021-10-28 09:35:28,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28400995] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:28,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616658416] [2021-10-28 09:35:28,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:28,145 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:28,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:28,146 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:28,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-28 09:35:28,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:28,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:35:28,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:28,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616658416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:28,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:28,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 09:35:28,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242231264] [2021-10-28 09:35:28,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:35:28,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:28,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:35:28,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:28,664 INFO L87 Difference]: Start difference. First operand 156 states and 177 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 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) [2021-10-28 09:35:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:28,767 INFO L93 Difference]: Finished difference Result 316 states and 358 transitions. [2021-10-28 09:35:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:35:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 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) Word has length 60 [2021-10-28 09:35:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:28,770 INFO L225 Difference]: With dead ends: 316 [2021-10-28 09:35:28,770 INFO L226 Difference]: Without dead ends: 197 [2021-10-28 09:35:28,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-28 09:35:28,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 161. [2021-10-28 09:35:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 151 states have (on average 1.2119205298013245) internal successors, (183), 160 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) [2021-10-28 09:35:28,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 183 transitions. [2021-10-28 09:35:28,782 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 183 transitions. Word has length 60 [2021-10-28 09:35:28,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:28,783 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 183 transitions. [2021-10-28 09:35:28,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 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) [2021-10-28 09:35:28,783 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 183 transitions. [2021-10-28 09:35:28,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-10-28 09:35:28,784 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:28,784 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:28,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:29,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-28 09:35:29,012 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:29,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:29,013 INFO L85 PathProgramCache]: Analyzing trace with hash -543952381, now seen corresponding path program 2 times [2021-10-28 09:35:29,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:29,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184621529] [2021-10-28 09:35:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:29,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:29,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:29,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184621529] [2021-10-28 09:35:29,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184621529] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:29,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362154235] [2021-10-28 09:35:29,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:29,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:29,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:29,130 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:29,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 09:35:29,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:35:29,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:29,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 09:35:29,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:29,936 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-10-28 09:35:29,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362154235] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:29,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:29,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2021-10-28 09:35:29,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209092356] [2021-10-28 09:35:29,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:29,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:29,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:29,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:29,938 INFO L87 Difference]: Start difference. First operand 161 states and 183 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 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) [2021-10-28 09:35:30,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:30,098 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2021-10-28 09:35:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 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) Word has length 61 [2021-10-28 09:35:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:30,100 INFO L225 Difference]: With dead ends: 212 [2021-10-28 09:35:30,100 INFO L226 Difference]: Without dead ends: 211 [2021-10-28 09:35:30,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:35:30,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-10-28 09:35:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 158. [2021-10-28 09:35:30,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 157 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:30,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 179 transitions. [2021-10-28 09:35:30,113 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 179 transitions. Word has length 61 [2021-10-28 09:35:30,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:30,113 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 179 transitions. [2021-10-28 09:35:30,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 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) [2021-10-28 09:35:30,113 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 179 transitions. [2021-10-28 09:35:30,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-10-28 09:35:30,114 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:30,114 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:30,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:30,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-28 09:35:30,340 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:30,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:30,341 INFO L85 PathProgramCache]: Analyzing trace with hash -604164096, now seen corresponding path program 1 times [2021-10-28 09:35:30,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:30,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108469172] [2021-10-28 09:35:30,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:30,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:30,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:30,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108469172] [2021-10-28 09:35:30,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108469172] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:30,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49012500] [2021-10-28 09:35:30,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:30,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:30,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:30,463 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:30,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 09:35:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:30,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:35:30,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:31,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49012500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:31,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:31,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-10-28 09:35:31,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914596109] [2021-10-28 09:35:31,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:35:31,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:31,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:35:31,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:31,104 INFO L87 Difference]: Start difference. First operand 158 states and 179 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:31,265 INFO L93 Difference]: Finished difference Result 279 states and 318 transitions. [2021-10-28 09:35:31,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:35:31,272 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 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 62 [2021-10-28 09:35:31,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:31,274 INFO L225 Difference]: With dead ends: 279 [2021-10-28 09:35:31,274 INFO L226 Difference]: Without dead ends: 160 [2021-10-28 09:35:31,274 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:35:31,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-28 09:35:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2021-10-28 09:35:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 148 states have (on average 1.2027027027027026) internal successors, (178), 157 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) [2021-10-28 09:35:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2021-10-28 09:35:31,287 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 62 [2021-10-28 09:35:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:31,289 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2021-10-28 09:35:31,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2021-10-28 09:35:31,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-28 09:35:31,290 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:31,290 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:31,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:31,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:31,512 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:31,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:31,512 INFO L85 PathProgramCache]: Analyzing trace with hash -554796599, now seen corresponding path program 1 times [2021-10-28 09:35:31,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:31,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498642616] [2021-10-28 09:35:31,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:31,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:31,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:31,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498642616] [2021-10-28 09:35:31,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498642616] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:31,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377131993] [2021-10-28 09:35:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:31,601 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:31,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:31,602 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:31,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-28 09:35:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:31,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:35:31,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:32,074 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:32,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377131993] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:32,074 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:32,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 09:35:32,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945746940] [2021-10-28 09:35:32,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:35:32,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:32,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:35:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:32,076 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 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) [2021-10-28 09:35:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:32,198 INFO L93 Difference]: Finished difference Result 314 states and 354 transitions. [2021-10-28 09:35:32,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:35:32,199 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 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 66 [2021-10-28 09:35:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:32,201 INFO L225 Difference]: With dead ends: 314 [2021-10-28 09:35:32,201 INFO L226 Difference]: Without dead ends: 198 [2021-10-28 09:35:32,203 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-28 09:35:32,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 163. [2021-10-28 09:35:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 153 states have (on average 1.2026143790849673) internal successors, (184), 162 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 184 transitions. [2021-10-28 09:35:32,214 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 184 transitions. Word has length 66 [2021-10-28 09:35:32,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:32,215 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 184 transitions. [2021-10-28 09:35:32,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 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) [2021-10-28 09:35:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 184 transitions. [2021-10-28 09:35:32,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-10-28 09:35:32,216 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:32,216 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:32,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-10-28 09:35:32,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-28 09:35:32,436 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:32,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -397435093, now seen corresponding path program 2 times [2021-10-28 09:35:32,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:32,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922745680] [2021-10-28 09:35:32,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:32,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:32,568 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:32,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:32,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922745680] [2021-10-28 09:35:32,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922745680] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:32,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410366111] [2021-10-28 09:35:32,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:32,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:32,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:32,571 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:32,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-28 09:35:33,027 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:35:33,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:33,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:35:33,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-10-28 09:35:33,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410366111] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:33,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:33,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2021-10-28 09:35:33,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424838156] [2021-10-28 09:35:33,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:33,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:33,483 INFO L87 Difference]: Start difference. First operand 163 states and 184 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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) [2021-10-28 09:35:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:33,708 INFO L93 Difference]: Finished difference Result 216 states and 237 transitions. [2021-10-28 09:35:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 09:35:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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 67 [2021-10-28 09:35:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:33,710 INFO L225 Difference]: With dead ends: 216 [2021-10-28 09:35:33,711 INFO L226 Difference]: Without dead ends: 213 [2021-10-28 09:35:33,711 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:35:33,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-28 09:35:33,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 174. [2021-10-28 09:35:33,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 164 states have (on average 1.2134146341463414) internal successors, (199), 173 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:33,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 199 transitions. [2021-10-28 09:35:33,724 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 199 transitions. Word has length 67 [2021-10-28 09:35:33,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:33,724 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 199 transitions. [2021-10-28 09:35:33,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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) [2021-10-28 09:35:33,725 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 199 transitions. [2021-10-28 09:35:33,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-10-28 09:35:33,726 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:33,726 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:33,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:33,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:33,950 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash 564414374, now seen corresponding path program 1 times [2021-10-28 09:35:33,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:33,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786775215] [2021-10-28 09:35:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:33,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:34,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:34,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786775215] [2021-10-28 09:35:34,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786775215] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:34,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832102651] [2021-10-28 09:35:34,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:34,084 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:34,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:34,085 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:34,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-28 09:35:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:34,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:35:34,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:35,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832102651] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:35,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:35,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-10-28 09:35:35,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727751751] [2021-10-28 09:35:35,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:35:35,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:35,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:35:35,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:35,045 INFO L87 Difference]: Start difference. First operand 174 states and 199 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2021-10-28 09:35:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:35,218 INFO L93 Difference]: Finished difference Result 306 states and 353 transitions. [2021-10-28 09:35:35,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:35:35,227 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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 68 [2021-10-28 09:35:35,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:35,229 INFO L225 Difference]: With dead ends: 306 [2021-10-28 09:35:35,229 INFO L226 Difference]: Without dead ends: 176 [2021-10-28 09:35:35,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 5 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:35:35,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-28 09:35:35,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174. [2021-10-28 09:35:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 164 states have (on average 1.2073170731707317) internal successors, (198), 173 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) [2021-10-28 09:35:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 198 transitions. [2021-10-28 09:35:35,260 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 198 transitions. Word has length 68 [2021-10-28 09:35:35,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:35,261 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 198 transitions. [2021-10-28 09:35:35,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 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) [2021-10-28 09:35:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 198 transitions. [2021-10-28 09:35:35,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-28 09:35:35,262 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:35,262 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:35,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:35,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:35,488 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:35,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1994648451, now seen corresponding path program 1 times [2021-10-28 09:35:35,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:35,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536459201] [2021-10-28 09:35:35,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:35,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:35,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:35,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536459201] [2021-10-28 09:35:35,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536459201] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:35,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023917819] [2021-10-28 09:35:35,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:35,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:35,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:35,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-28 09:35:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:35,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:35:35,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:36,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023917819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:36,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:36,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 09:35:36,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181334626] [2021-10-28 09:35:36,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:35:36,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:36,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:35:36,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:36,171 INFO L87 Difference]: Start difference. First operand 174 states and 198 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:36,284 INFO L93 Difference]: Finished difference Result 341 states and 389 transitions. [2021-10-28 09:35:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:35:36,284 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 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 72 [2021-10-28 09:35:36,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:36,286 INFO L225 Difference]: With dead ends: 341 [2021-10-28 09:35:36,286 INFO L226 Difference]: Without dead ends: 214 [2021-10-28 09:35:36,286 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:36,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-28 09:35:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 179. [2021-10-28 09:35:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 169 states have (on average 1.2071005917159763) internal successors, (204), 178 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 204 transitions. [2021-10-28 09:35:36,299 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 204 transitions. Word has length 72 [2021-10-28 09:35:36,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:36,299 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 204 transitions. [2021-10-28 09:35:36,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:36,299 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 204 transitions. [2021-10-28 09:35:36,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:35:36,300 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:36,301 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:36,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:36,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:36,524 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:36,524 INFO L85 PathProgramCache]: Analyzing trace with hash -556569967, now seen corresponding path program 2 times [2021-10-28 09:35:36,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:36,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092836909] [2021-10-28 09:35:36,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:36,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:36,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:36,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092836909] [2021-10-28 09:35:36,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092836909] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:36,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091165534] [2021-10-28 09:35:36,673 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:36,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:36,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:36,675 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:36,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-28 09:35:37,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-28 09:35:37,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:37,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:35:37,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:37,442 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-10-28 09:35:37,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091165534] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:35:37,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 09:35:37,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2021-10-28 09:35:37,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556306633] [2021-10-28 09:35:37,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-28 09:35:37,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:37,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 09:35:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:37,446 INFO L87 Difference]: Start difference. First operand 179 states and 204 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:37,725 INFO L93 Difference]: Finished difference Result 258 states and 284 transitions. [2021-10-28 09:35:37,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:35:37,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 [2021-10-28 09:35:37,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:37,727 INFO L225 Difference]: With dead ends: 258 [2021-10-28 09:35:37,727 INFO L226 Difference]: Without dead ends: 257 [2021-10-28 09:35:37,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:35:37,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-28 09:35:37,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 193. [2021-10-28 09:35:37,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.2021857923497268) internal successors, (220), 192 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) [2021-10-28 09:35:37,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 220 transitions. [2021-10-28 09:35:37,743 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 220 transitions. Word has length 73 [2021-10-28 09:35:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:37,743 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 220 transitions. [2021-10-28 09:35:37,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:37,743 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 220 transitions. [2021-10-28 09:35:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-10-28 09:35:37,748 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:37,748 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:37,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:37,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-28 09:35:37,964 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:37,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1283820295, now seen corresponding path program 1 times [2021-10-28 09:35:37,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:37,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638572171] [2021-10-28 09:35:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:37,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:38,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:38,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638572171] [2021-10-28 09:35:38,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638572171] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:38,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842849977] [2021-10-28 09:35:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:38,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:38,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:38,109 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:38,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 09:35:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:38,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 09:35:38,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:39,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842849977] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:39,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:39,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-10-28 09:35:39,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156340201] [2021-10-28 09:35:39,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-28 09:35:39,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:39,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 09:35:39,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:39,180 INFO L87 Difference]: Start difference. First operand 193 states and 220 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 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) [2021-10-28 09:35:39,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:39,461 INFO L93 Difference]: Finished difference Result 339 states and 390 transitions. [2021-10-28 09:35:39,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 09:35:39,462 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 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 73 [2021-10-28 09:35:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:39,464 INFO L225 Difference]: With dead ends: 339 [2021-10-28 09:35:39,464 INFO L226 Difference]: Without dead ends: 195 [2021-10-28 09:35:39,465 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:35:39,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-28 09:35:39,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 193. [2021-10-28 09:35:39,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 183 states have (on average 1.1967213114754098) internal successors, (219), 192 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 219 transitions. [2021-10-28 09:35:39,477 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 219 transitions. Word has length 73 [2021-10-28 09:35:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:39,477 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 219 transitions. [2021-10-28 09:35:39,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 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) [2021-10-28 09:35:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 219 transitions. [2021-10-28 09:35:39,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-10-28 09:35:39,479 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:39,479 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:39,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:39,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-28 09:35:39,704 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:39,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:39,704 INFO L85 PathProgramCache]: Analyzing trace with hash -679422896, now seen corresponding path program 1 times [2021-10-28 09:35:39,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:39,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9579880] [2021-10-28 09:35:39,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:39,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:39,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:39,808 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:39,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:39,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9579880] [2021-10-28 09:35:39,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9579880] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:39,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989745196] [2021-10-28 09:35:39,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:39,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:39,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:39,810 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:39,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 09:35:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:40,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:35:40,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:40,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989745196] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:40,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:40,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 09:35:40,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117617966] [2021-10-28 09:35:40,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:35:40,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:40,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:35:40,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:40,514 INFO L87 Difference]: Start difference. First operand 193 states and 219 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:40,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:40,619 INFO L93 Difference]: Finished difference Result 371 states and 423 transitions. [2021-10-28 09:35:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:40,620 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 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 77 [2021-10-28 09:35:40,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:40,622 INFO L225 Difference]: With dead ends: 371 [2021-10-28 09:35:40,622 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 09:35:40,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 09:35:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 198. [2021-10-28 09:35:40,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.196808510638298) internal successors, (225), 197 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) [2021-10-28 09:35:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 225 transitions. [2021-10-28 09:35:40,636 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 225 transitions. Word has length 77 [2021-10-28 09:35:40,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:40,636 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 225 transitions. [2021-10-28 09:35:40,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:40,636 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 225 transitions. [2021-10-28 09:35:40,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-10-28 09:35:40,637 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:40,638 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:40,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:40,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:40,864 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:40,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:40,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1903389934, now seen corresponding path program 2 times [2021-10-28 09:35:40,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:40,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283449178] [2021-10-28 09:35:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:40,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:41,007 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:41,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:41,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283449178] [2021-10-28 09:35:41,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283449178] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:41,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978719637] [2021-10-28 09:35:41,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:41,008 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:41,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:41,011 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:41,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-28 09:35:41,608 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:35:41,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:41,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 09:35:41,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:42,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978719637] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:42,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:42,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-10-28 09:35:42,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219644108] [2021-10-28 09:35:42,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-28 09:35:42,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:42,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 09:35:42,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:42,072 INFO L87 Difference]: Start difference. First operand 198 states and 225 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 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) [2021-10-28 09:35:42,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:42,306 INFO L93 Difference]: Finished difference Result 344 states and 395 transitions. [2021-10-28 09:35:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 09:35:42,313 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 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 78 [2021-10-28 09:35:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:42,314 INFO L225 Difference]: With dead ends: 344 [2021-10-28 09:35:42,315 INFO L226 Difference]: Without dead ends: 200 [2021-10-28 09:35:42,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 71 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-28 09:35:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-10-28 09:35:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 198. [2021-10-28 09:35:42,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 188 states have (on average 1.1914893617021276) internal successors, (224), 197 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 224 transitions. [2021-10-28 09:35:42,328 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 224 transitions. Word has length 78 [2021-10-28 09:35:42,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:42,328 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 224 transitions. [2021-10-28 09:35:42,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 12 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) [2021-10-28 09:35:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 224 transitions. [2021-10-28 09:35:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-28 09:35:42,330 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:42,330 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:42,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:42,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-28 09:35:42,538 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2141374917, now seen corresponding path program 2 times [2021-10-28 09:35:42,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:42,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896532836] [2021-10-28 09:35:42,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:42,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:42,665 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:42,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:42,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896532836] [2021-10-28 09:35:42,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896532836] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:42,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060353436] [2021-10-28 09:35:42,666 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:35:42,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:42,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:42,668 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:42,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 09:35:43,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:35:43,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:43,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 09:35:43,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:43,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060353436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:43,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:43,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 09:35:43,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949800559] [2021-10-28 09:35:43,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:35:43,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:43,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:35:43,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:43,495 INFO L87 Difference]: Start difference. First operand 198 states and 224 transitions. Second operand has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:43,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:43,578 INFO L93 Difference]: Finished difference Result 376 states and 428 transitions. [2021-10-28 09:35:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:35:43,578 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 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 82 [2021-10-28 09:35:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:43,580 INFO L225 Difference]: With dead ends: 376 [2021-10-28 09:35:43,580 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 09:35:43,581 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 09:35:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 203. [2021-10-28 09:35:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 193 states have (on average 1.1917098445595855) internal successors, (230), 202 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) [2021-10-28 09:35:43,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 230 transitions. [2021-10-28 09:35:43,594 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 230 transitions. Word has length 82 [2021-10-28 09:35:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:43,594 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 230 transitions. [2021-10-28 09:35:43,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 230 transitions. [2021-10-28 09:35:43,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-28 09:35:43,596 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:43,596 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:43,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:43,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:43,813 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:43,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:43,814 INFO L85 PathProgramCache]: Analyzing trace with hash -846191079, now seen corresponding path program 3 times [2021-10-28 09:35:43,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:43,814 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109952026] [2021-10-28 09:35:43,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:43,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:43,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:43,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109952026] [2021-10-28 09:35:43,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109952026] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:43,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153032206] [2021-10-28 09:35:43,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:35:43,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:43,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:44,000 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:44,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-28 09:35:45,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-28 09:35:45,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:45,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:35:45,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:45,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153032206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:45,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:45,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2021-10-28 09:35:45,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110146991] [2021-10-28 09:35:45,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-28 09:35:45,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:45,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-28 09:35:45,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:45,752 INFO L87 Difference]: Start difference. First operand 203 states and 230 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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) [2021-10-28 09:35:45,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:45,988 INFO L93 Difference]: Finished difference Result 349 states and 400 transitions. [2021-10-28 09:35:45,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-28 09:35:45,989 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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 83 [2021-10-28 09:35:45,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:45,990 INFO L225 Difference]: With dead ends: 349 [2021-10-28 09:35:45,990 INFO L226 Difference]: Without dead ends: 205 [2021-10-28 09:35:45,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:35:45,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2021-10-28 09:35:46,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2021-10-28 09:35:46,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 193 states have (on average 1.1865284974093264) internal successors, (229), 202 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:46,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions. [2021-10-28 09:35:46,002 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 83 [2021-10-28 09:35:46,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:46,002 INFO L470 AbstractCegarLoop]: Abstraction has 203 states and 229 transitions. [2021-10-28 09:35:46,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 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) [2021-10-28 09:35:46,002 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 229 transitions. [2021-10-28 09:35:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-28 09:35:46,003 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:46,003 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:46,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:46,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-10-28 09:35:46,208 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:46,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:46,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1625754256, now seen corresponding path program 3 times [2021-10-28 09:35:46,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:46,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606864861] [2021-10-28 09:35:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:46,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:46,335 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:46,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:46,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606864861] [2021-10-28 09:35:46,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606864861] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:46,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780909756] [2021-10-28 09:35:46,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:35:46,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:46,338 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:46,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-28 09:35:47,053 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-10-28 09:35:47,053 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:47,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-28 09:35:47,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:47,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780909756] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:47,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:47,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 09:35:47,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987031315] [2021-10-28 09:35:47,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:35:47,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:35:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:47,314 INFO L87 Difference]: Start difference. First operand 203 states and 229 transitions. Second operand has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:47,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:47,446 INFO L93 Difference]: Finished difference Result 381 states and 433 transitions. [2021-10-28 09:35:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:35:47,446 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 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 87 [2021-10-28 09:35:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:47,448 INFO L225 Difference]: With dead ends: 381 [2021-10-28 09:35:47,448 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 09:35:47,449 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 09:35:47,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 208. [2021-10-28 09:35:47,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 198 states have (on average 1.1868686868686869) internal successors, (235), 207 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) [2021-10-28 09:35:47,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 235 transitions. [2021-10-28 09:35:47,463 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 235 transitions. Word has length 87 [2021-10-28 09:35:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:47,463 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 235 transitions. [2021-10-28 09:35:47,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 235 transitions. [2021-10-28 09:35:47,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-10-28 09:35:47,465 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:47,465 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:47,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:47,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-28 09:35:47,672 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:47,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1663078450, now seen corresponding path program 4 times [2021-10-28 09:35:47,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:47,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319235742] [2021-10-28 09:35:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:47,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:47,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:47,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319235742] [2021-10-28 09:35:47,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319235742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:47,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659946285] [2021-10-28 09:35:47,913 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:35:47,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:47,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:47,915 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:47,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-28 09:35:48,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:35:48,858 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:48,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:35:48,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:49,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659946285] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:49,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:49,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-10-28 09:35:49,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277677802] [2021-10-28 09:35:49,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-28 09:35:49,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:49,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 09:35:49,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:49,456 INFO L87 Difference]: Start difference. First operand 208 states and 235 transitions. Second operand has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 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) [2021-10-28 09:35:49,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:49,747 INFO L93 Difference]: Finished difference Result 354 states and 405 transitions. [2021-10-28 09:35:49,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 09:35:49,749 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 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 88 [2021-10-28 09:35:49,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:49,750 INFO L225 Difference]: With dead ends: 354 [2021-10-28 09:35:49,750 INFO L226 Difference]: Without dead ends: 210 [2021-10-28 09:35:49,751 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 79 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-10-28 09:35:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-28 09:35:49,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2021-10-28 09:35:49,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 198 states have (on average 1.1818181818181819) internal successors, (234), 207 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2021-10-28 09:35:49,763 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 88 [2021-10-28 09:35:49,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:49,764 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2021-10-28 09:35:49,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 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) [2021-10-28 09:35:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2021-10-28 09:35:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-28 09:35:49,765 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:49,765 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:49,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:49,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-28 09:35:49,966 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:49,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:49,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1033002149, now seen corresponding path program 4 times [2021-10-28 09:35:49,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:49,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295967863] [2021-10-28 09:35:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:49,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:50,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:50,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295967863] [2021-10-28 09:35:50,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295967863] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:50,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270184660] [2021-10-28 09:35:50,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:35:50,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:50,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:50,132 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:50,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-28 09:35:50,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:35:50,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:50,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:35:50,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:51,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270184660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:51,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:51,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 09:35:51,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663250932] [2021-10-28 09:35:51,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:35:51,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:51,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:35:51,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:51,019 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:51,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:51,158 INFO L93 Difference]: Finished difference Result 386 states and 438 transitions. [2021-10-28 09:35:51,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:35:51,159 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 92 [2021-10-28 09:35:51,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:51,161 INFO L225 Difference]: With dead ends: 386 [2021-10-28 09:35:51,161 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 09:35:51,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:51,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 09:35:51,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 213. [2021-10-28 09:35:51,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.1822660098522169) internal successors, (240), 212 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) [2021-10-28 09:35:51,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2021-10-28 09:35:51,175 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 92 [2021-10-28 09:35:51,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:51,176 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2021-10-28 09:35:51,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:51,176 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2021-10-28 09:35:51,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-28 09:35:51,197 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:51,198 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:51,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:51,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:51,412 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:51,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:51,412 INFO L85 PathProgramCache]: Analyzing trace with hash -846008519, now seen corresponding path program 5 times [2021-10-28 09:35:51,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:51,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079141072] [2021-10-28 09:35:51,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:51,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:51,652 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:51,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:51,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079141072] [2021-10-28 09:35:51,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079141072] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:51,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097739315] [2021-10-28 09:35:51,653 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:35:51,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:51,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:51,654 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:51,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-28 09:35:52,412 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-28 09:35:52,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:52,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:35:52,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:53,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097739315] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:53,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:53,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 15 [2021-10-28 09:35:53,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552586179] [2021-10-28 09:35:53,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-28 09:35:53,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:53,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-28 09:35:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:53,066 INFO L87 Difference]: Start difference. First operand 213 states and 240 transitions. Second operand has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 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) [2021-10-28 09:35:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:53,318 INFO L93 Difference]: Finished difference Result 359 states and 410 transitions. [2021-10-28 09:35:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 09:35:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 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 93 [2021-10-28 09:35:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:53,321 INFO L225 Difference]: With dead ends: 359 [2021-10-28 09:35:53,321 INFO L226 Difference]: Without dead ends: 215 [2021-10-28 09:35:53,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 83 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-10-28 09:35:53,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2021-10-28 09:35:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2021-10-28 09:35:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 203 states have (on average 1.1773399014778325) internal successors, (239), 212 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2021-10-28 09:35:53,334 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 93 [2021-10-28 09:35:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:53,334 INFO L470 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2021-10-28 09:35:53,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.333333333333333) internal successors, (95), 15 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) [2021-10-28 09:35:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2021-10-28 09:35:53,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-28 09:35:53,336 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:53,336 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:53,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:53,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:53,552 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:53,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash -531485040, now seen corresponding path program 5 times [2021-10-28 09:35:53,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:53,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986439466] [2021-10-28 09:35:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:53,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:53,719 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:53,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:53,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986439466] [2021-10-28 09:35:53,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986439466] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:53,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601373989] [2021-10-28 09:35:53,720 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:35:53,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:53,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:53,721 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:53,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-28 09:35:54,455 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-10-28 09:35:54,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:54,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 09:35:54,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:54,759 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:54,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601373989] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:54,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:54,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 09:35:54,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770272367] [2021-10-28 09:35:54,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:35:54,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:35:54,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:54,762 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:54,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:54,885 INFO L93 Difference]: Finished difference Result 391 states and 443 transitions. [2021-10-28 09:35:54,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:35:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 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 97 [2021-10-28 09:35:54,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:54,887 INFO L225 Difference]: With dead ends: 391 [2021-10-28 09:35:54,888 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 09:35:54,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 09:35:54,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 218. [2021-10-28 09:35:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.1778846153846154) internal successors, (245), 217 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) [2021-10-28 09:35:54,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 245 transitions. [2021-10-28 09:35:54,902 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 245 transitions. Word has length 97 [2021-10-28 09:35:54,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:54,902 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 245 transitions. [2021-10-28 09:35:54,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:54,903 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 245 transitions. [2021-10-28 09:35:54,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-28 09:35:54,904 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:54,904 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:54,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-10-28 09:35:55,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-28 09:35:55,120 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:55,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2100471122, now seen corresponding path program 6 times [2021-10-28 09:35:55,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:55,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777109783] [2021-10-28 09:35:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:55,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:55,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:55,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777109783] [2021-10-28 09:35:55,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777109783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:55,494 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117013713] [2021-10-28 09:35:55,494 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:35:55,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:55,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:55,496 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:55,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-28 09:35:56,739 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-28 09:35:56,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:56,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-28 09:35:56,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:57,462 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:57,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117013713] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:57,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:57,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 16 [2021-10-28 09:35:57,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35017403] [2021-10-28 09:35:57,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-28 09:35:57,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:57,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 09:35:57,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:57,465 INFO L87 Difference]: Start difference. First operand 218 states and 245 transitions. Second operand has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 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) [2021-10-28 09:35:57,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:57,912 INFO L93 Difference]: Finished difference Result 364 states and 415 transitions. [2021-10-28 09:35:57,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 09:35:57,913 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 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 98 [2021-10-28 09:35:57,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:57,915 INFO L225 Difference]: With dead ends: 364 [2021-10-28 09:35:57,915 INFO L226 Difference]: Without dead ends: 220 [2021-10-28 09:35:57,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 11 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-10-28 09:35:57,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-28 09:35:57,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2021-10-28 09:35:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.1730769230769231) internal successors, (244), 217 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 244 transitions. [2021-10-28 09:35:57,930 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 244 transitions. Word has length 98 [2021-10-28 09:35:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:57,931 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 244 transitions. [2021-10-28 09:35:57,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.25) internal successors, (100), 16 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) [2021-10-28 09:35:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 244 transitions. [2021-10-28 09:35:57,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-10-28 09:35:57,932 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:57,933 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:57,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:58,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:58,142 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:58,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:58,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1389352837, now seen corresponding path program 6 times [2021-10-28 09:35:58,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:58,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725224672] [2021-10-28 09:35:58,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:58,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:35:58,365 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:58,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:35:58,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725224672] [2021-10-28 09:35:58,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725224672] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:58,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342465981] [2021-10-28 09:35:58,365 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:35:58,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:58,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:35:58,366 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:35:58,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-28 09:35:59,384 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-10-28 09:35:59,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:35:59,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 09:35:59,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:35:59,645 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:35:59,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342465981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:35:59,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:35:59,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 09:35:59,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683478400] [2021-10-28 09:35:59,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 09:35:59,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:35:59,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:35:59,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:35:59,647 INFO L87 Difference]: Start difference. First operand 218 states and 244 transitions. Second operand has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:59,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:35:59,739 INFO L93 Difference]: Finished difference Result 396 states and 448 transitions. [2021-10-28 09:35:59,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:35:59,739 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 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 102 [2021-10-28 09:35:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:35:59,740 INFO L225 Difference]: With dead ends: 396 [2021-10-28 09:35:59,740 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 09:35:59,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:35:59,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 09:35:59,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 223. [2021-10-28 09:35:59,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.1737089201877935) internal successors, (250), 222 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) [2021-10-28 09:35:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 250 transitions. [2021-10-28 09:35:59,754 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 250 transitions. Word has length 102 [2021-10-28 09:35:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:35:59,755 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 250 transitions. [2021-10-28 09:35:59,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.411764705882353) internal successors, (109), 17 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:35:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 250 transitions. [2021-10-28 09:35:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-10-28 09:35:59,756 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:35:59,757 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:35:59,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:35:59,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:35:59,965 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:35:59,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:35:59,965 INFO L85 PathProgramCache]: Analyzing trace with hash 1610928217, now seen corresponding path program 7 times [2021-10-28 09:35:59,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:35:59,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464285432] [2021-10-28 09:35:59,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:35:59,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:35:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:00,247 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:00,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:00,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464285432] [2021-10-28 09:36:00,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464285432] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:00,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574931194] [2021-10-28 09:36:00,248 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:36:00,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:00,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:00,256 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:00,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-28 09:36:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:01,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-28 09:36:01,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:01,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574931194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:01,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:01,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-10-28 09:36:01,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774346834] [2021-10-28 09:36:01,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-28 09:36:01,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:01,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:36:01,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:36:01,876 INFO L87 Difference]: Start difference. First operand 223 states and 250 transitions. Second operand has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2021-10-28 09:36:02,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:02,317 INFO L93 Difference]: Finished difference Result 369 states and 420 transitions. [2021-10-28 09:36:02,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 09:36:02,320 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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 103 [2021-10-28 09:36:02,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:02,321 INFO L225 Difference]: With dead ends: 369 [2021-10-28 09:36:02,322 INFO L226 Difference]: Without dead ends: 225 [2021-10-28 09:36:02,322 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 12 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:36:02,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-10-28 09:36:02,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2021-10-28 09:36:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.1690140845070423) internal successors, (249), 222 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:02,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2021-10-28 09:36:02,335 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 103 [2021-10-28 09:36:02,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:02,336 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2021-10-28 09:36:02,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.176470588235294) internal successors, (105), 17 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) [2021-10-28 09:36:02,336 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2021-10-28 09:36:02,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-10-28 09:36:02,337 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:02,337 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:02,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:02,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-10-28 09:36:02,564 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:02,565 INFO L85 PathProgramCache]: Analyzing trace with hash 917405616, now seen corresponding path program 7 times [2021-10-28 09:36:02,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:02,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358958902] [2021-10-28 09:36:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:02,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:02,775 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:02,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:02,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358958902] [2021-10-28 09:36:02,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358958902] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:02,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042004874] [2021-10-28 09:36:02,775 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:36:02,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:02,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:02,780 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:02,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-28 09:36:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:03,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:36:03,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:03,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042004874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:03,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:03,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 09:36:03,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047034997] [2021-10-28 09:36:03,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:36:03,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:03,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:36:03,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:03,898 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:04,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:04,019 INFO L93 Difference]: Finished difference Result 401 states and 453 transitions. [2021-10-28 09:36:04,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:36:04,019 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 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 107 [2021-10-28 09:36:04,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:04,021 INFO L225 Difference]: With dead ends: 401 [2021-10-28 09:36:04,021 INFO L226 Difference]: Without dead ends: 260 [2021-10-28 09:36:04,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-28 09:36:04,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 228. [2021-10-28 09:36:04,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.1697247706422018) internal successors, (255), 227 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) [2021-10-28 09:36:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 255 transitions. [2021-10-28 09:36:04,037 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 255 transitions. Word has length 107 [2021-10-28 09:36:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:04,038 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 255 transitions. [2021-10-28 09:36:04,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.333333333333333) internal successors, (114), 18 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 255 transitions. [2021-10-28 09:36:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-10-28 09:36:04,039 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:04,040 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:04,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:04,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-10-28 09:36:04,260 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:04,261 INFO L85 PathProgramCache]: Analyzing trace with hash -134533746, now seen corresponding path program 8 times [2021-10-28 09:36:04,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:04,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531875125] [2021-10-28 09:36:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:04,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:04,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:04,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531875125] [2021-10-28 09:36:04,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531875125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:04,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820755315] [2021-10-28 09:36:04,561 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:36:04,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:04,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:04,568 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:04,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-28 09:36:05,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:36:05,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:05,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-28 09:36:05,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:06,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820755315] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:06,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:06,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-10-28 09:36:06,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475795011] [2021-10-28 09:36:06,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-28 09:36:06,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 09:36:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:06,551 INFO L87 Difference]: Start difference. First operand 228 states and 255 transitions. Second operand has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 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) [2021-10-28 09:36:07,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:07,035 INFO L93 Difference]: Finished difference Result 374 states and 425 transitions. [2021-10-28 09:36:07,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:36:07,036 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 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 108 [2021-10-28 09:36:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:07,038 INFO L225 Difference]: With dead ends: 374 [2021-10-28 09:36:07,038 INFO L226 Difference]: Without dead ends: 230 [2021-10-28 09:36:07,041 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 95 SyntacticMatches, 13 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-10-28 09:36:07,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-10-28 09:36:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-10-28 09:36:07,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.165137614678899) internal successors, (254), 227 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 254 transitions. [2021-10-28 09:36:07,061 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 254 transitions. Word has length 108 [2021-10-28 09:36:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:07,062 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 254 transitions. [2021-10-28 09:36:07,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.111111111111111) internal successors, (110), 18 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) [2021-10-28 09:36:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 254 transitions. [2021-10-28 09:36:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-10-28 09:36:07,063 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:07,063 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:07,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:07,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-28 09:36:07,272 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:07,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:07,272 INFO L85 PathProgramCache]: Analyzing trace with hash 85539429, now seen corresponding path program 8 times [2021-10-28 09:36:07,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:07,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698396842] [2021-10-28 09:36:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:07,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:07,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:07,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698396842] [2021-10-28 09:36:07,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698396842] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:07,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408157364] [2021-10-28 09:36:07,513 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:36:07,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:07,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:07,515 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:07,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-28 09:36:08,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:36:08,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:08,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-28 09:36:08,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:08,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408157364] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:08,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:08,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 09:36:08,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341064261] [2021-10-28 09:36:08,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:36:08,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:08,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:36:08,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:08,757 INFO L87 Difference]: Start difference. First operand 228 states and 254 transitions. Second operand has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:08,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:08,870 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2021-10-28 09:36:08,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:36:08,871 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 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 112 [2021-10-28 09:36:08,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:08,872 INFO L225 Difference]: With dead ends: 406 [2021-10-28 09:36:08,872 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 09:36:08,873 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 09:36:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 233. [2021-10-28 09:36:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 223 states have (on average 1.1659192825112108) internal successors, (260), 232 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) [2021-10-28 09:36:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 260 transitions. [2021-10-28 09:36:08,887 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 260 transitions. Word has length 112 [2021-10-28 09:36:08,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:08,887 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 260 transitions. [2021-10-28 09:36:08,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.2631578947368425) internal successors, (119), 19 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:08,888 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 260 transitions. [2021-10-28 09:36:08,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-28 09:36:08,889 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:08,889 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:08,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-10-28 09:36:09,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-28 09:36:09,104 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:09,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash -152581767, now seen corresponding path program 9 times [2021-10-28 09:36:09,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:09,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545927696] [2021-10-28 09:36:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:09,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:09,421 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:09,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:09,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545927696] [2021-10-28 09:36:09,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545927696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:09,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914011762] [2021-10-28 09:36:09,422 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:36:09,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:09,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:09,428 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:09,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 09:36:13,486 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-10-28 09:36:13,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:13,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-28 09:36:13,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:14,473 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:14,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914011762] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:14,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:14,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 19 [2021-10-28 09:36:14,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924287723] [2021-10-28 09:36:14,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-28 09:36:14,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:14,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:36:14,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:14,476 INFO L87 Difference]: Start difference. First operand 233 states and 260 transitions. Second operand has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 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) [2021-10-28 09:36:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:14,902 INFO L93 Difference]: Finished difference Result 379 states and 430 transitions. [2021-10-28 09:36:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-28 09:36:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 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 113 [2021-10-28 09:36:14,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:14,908 INFO L225 Difference]: With dead ends: 379 [2021-10-28 09:36:14,908 INFO L226 Difference]: Without dead ends: 235 [2021-10-28 09:36:14,909 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 99 SyntacticMatches, 14 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:36:14,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-28 09:36:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2021-10-28 09:36:14,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 223 states have (on average 1.1614349775784754) internal successors, (259), 232 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 259 transitions. [2021-10-28 09:36:14,923 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 259 transitions. Word has length 113 [2021-10-28 09:36:14,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:14,923 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 259 transitions. [2021-10-28 09:36:14,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.052631578947368) internal successors, (115), 19 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) [2021-10-28 09:36:14,924 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 259 transitions. [2021-10-28 09:36:14,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-10-28 09:36:14,929 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:14,929 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:14,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:15,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-28 09:36:15,139 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:15,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1127213264, now seen corresponding path program 9 times [2021-10-28 09:36:15,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:15,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200044675] [2021-10-28 09:36:15,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:15,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:15,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:15,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200044675] [2021-10-28 09:36:15,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200044675] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:15,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132563821] [2021-10-28 09:36:15,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:36:15,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:15,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:15,372 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:15,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 09:36:16,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2021-10-28 09:36:16,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:16,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-28 09:36:16,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:17,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132563821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:17,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:17,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 09:36:17,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740294366] [2021-10-28 09:36:17,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:36:17,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:36:17,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:17,013 INFO L87 Difference]: Start difference. First operand 233 states and 259 transitions. Second operand has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:17,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:17,151 INFO L93 Difference]: Finished difference Result 411 states and 463 transitions. [2021-10-28 09:36:17,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:36:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 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 117 [2021-10-28 09:36:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:17,153 INFO L225 Difference]: With dead ends: 411 [2021-10-28 09:36:17,153 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 09:36:17,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:17,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 09:36:17,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 238. [2021-10-28 09:36:17,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 228 states have (on average 1.162280701754386) internal successors, (265), 237 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) [2021-10-28 09:36:17,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 265 transitions. [2021-10-28 09:36:17,166 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 265 transitions. Word has length 117 [2021-10-28 09:36:17,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:17,167 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 265 transitions. [2021-10-28 09:36:17,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 265 transitions. [2021-10-28 09:36:17,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-28 09:36:17,168 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:17,168 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:17,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:17,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:17,369 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2074536046, now seen corresponding path program 10 times [2021-10-28 09:36:17,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:17,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407493182] [2021-10-28 09:36:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:17,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:17,672 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:17,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407493182] [2021-10-28 09:36:17,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407493182] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:17,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220569478] [2021-10-28 09:36:17,672 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:36:17,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:17,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:17,673 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:17,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 09:36:18,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:36:18,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:18,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-28 09:36:18,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:19,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220569478] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:19,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:19,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-10-28 09:36:19,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613493383] [2021-10-28 09:36:19,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-28 09:36:19,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 09:36:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:19,572 INFO L87 Difference]: Start difference. First operand 238 states and 265 transitions. Second operand has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 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) [2021-10-28 09:36:20,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:20,033 INFO L93 Difference]: Finished difference Result 384 states and 435 transitions. [2021-10-28 09:36:20,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-28 09:36:20,033 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 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 118 [2021-10-28 09:36:20,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:20,035 INFO L225 Difference]: With dead ends: 384 [2021-10-28 09:36:20,035 INFO L226 Difference]: Without dead ends: 240 [2021-10-28 09:36:20,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 103 SyntacticMatches, 15 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2021-10-28 09:36:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-10-28 09:36:20,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2021-10-28 09:36:20,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 228 states have (on average 1.1578947368421053) internal successors, (264), 237 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:20,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 264 transitions. [2021-10-28 09:36:20,048 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 264 transitions. Word has length 118 [2021-10-28 09:36:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:20,048 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 264 transitions. [2021-10-28 09:36:20,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.0) internal successors, (120), 20 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) [2021-10-28 09:36:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 264 transitions. [2021-10-28 09:36:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-10-28 09:36:20,050 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:20,050 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:20,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-10-28 09:36:20,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-10-28 09:36:20,264 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:20,264 INFO L85 PathProgramCache]: Analyzing trace with hash 78415173, now seen corresponding path program 10 times [2021-10-28 09:36:20,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:20,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144838722] [2021-10-28 09:36:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:20,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:20,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:20,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144838722] [2021-10-28 09:36:20,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144838722] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:20,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039650211] [2021-10-28 09:36:20,544 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:36:20,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:20,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:20,547 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:20,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-28 09:36:21,647 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:36:21,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:21,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 09:36:21,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:21,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039650211] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:21,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:21,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 09:36:21,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529811671] [2021-10-28 09:36:21,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:36:21,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:21,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:36:21,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:21,957 INFO L87 Difference]: Start difference. First operand 238 states and 264 transitions. Second operand has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:22,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:22,100 INFO L93 Difference]: Finished difference Result 416 states and 468 transitions. [2021-10-28 09:36:22,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:36:22,103 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 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 122 [2021-10-28 09:36:22,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:22,104 INFO L225 Difference]: With dead ends: 416 [2021-10-28 09:36:22,104 INFO L226 Difference]: Without dead ends: 275 [2021-10-28 09:36:22,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-28 09:36:22,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 243. [2021-10-28 09:36:22,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.1587982832618027) internal successors, (270), 242 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) [2021-10-28 09:36:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 270 transitions. [2021-10-28 09:36:22,113 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 270 transitions. Word has length 122 [2021-10-28 09:36:22,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:22,113 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 270 transitions. [2021-10-28 09:36:22,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.142857142857143) internal successors, (129), 21 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:22,113 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 270 transitions. [2021-10-28 09:36:22,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-28 09:36:22,114 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:22,114 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:22,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-10-28 09:36:22,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:22,315 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:22,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:22,315 INFO L85 PathProgramCache]: Analyzing trace with hash -373433703, now seen corresponding path program 11 times [2021-10-28 09:36:22,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:22,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963535206] [2021-10-28 09:36:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:22,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:22,689 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:22,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:22,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963535206] [2021-10-28 09:36:22,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963535206] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:22,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189998558] [2021-10-28 09:36:22,690 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:36:22,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:22,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:22,692 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:22,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-28 09:36:24,313 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-10-28 09:36:24,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:24,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 09:36:24,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 680 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:25,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189998558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:25,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:25,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 21 [2021-10-28 09:36:25,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432083345] [2021-10-28 09:36:25,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-28 09:36:25,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:25,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-28 09:36:25,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:25,213 INFO L87 Difference]: Start difference. First operand 243 states and 270 transitions. Second operand has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 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) [2021-10-28 09:36:25,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:25,673 INFO L93 Difference]: Finished difference Result 389 states and 440 transitions. [2021-10-28 09:36:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-28 09:36:25,673 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 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 123 [2021-10-28 09:36:25,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:25,675 INFO L225 Difference]: With dead ends: 389 [2021-10-28 09:36:25,675 INFO L226 Difference]: Without dead ends: 245 [2021-10-28 09:36:25,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 107 SyntacticMatches, 16 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2021-10-28 09:36:25,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-28 09:36:25,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 243. [2021-10-28 09:36:25,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.1545064377682404) internal successors, (269), 242 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:25,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 269 transitions. [2021-10-28 09:36:25,690 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 269 transitions. Word has length 123 [2021-10-28 09:36:25,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:25,690 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 269 transitions. [2021-10-28 09:36:25,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.9523809523809526) internal successors, (125), 21 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) [2021-10-28 09:36:25,691 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 269 transitions. [2021-10-28 09:36:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-10-28 09:36:25,692 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:25,692 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:25,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:25,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:25,920 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:25,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:25,920 INFO L85 PathProgramCache]: Analyzing trace with hash -866620944, now seen corresponding path program 11 times [2021-10-28 09:36:25,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:25,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906644295] [2021-10-28 09:36:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:25,921 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:26,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:26,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906644295] [2021-10-28 09:36:26,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906644295] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:26,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074407744] [2021-10-28 09:36:26,224 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:36:26,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:26,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:26,226 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:26,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-28 09:36:27,462 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2021-10-28 09:36:27,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:27,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-28 09:36:27,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:27,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074407744] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:27,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:27,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 09:36:27,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059339824] [2021-10-28 09:36:27,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:36:27,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:27,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:36:27,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:36:27,794 INFO L87 Difference]: Start difference. First operand 243 states and 269 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:27,921 INFO L93 Difference]: Finished difference Result 421 states and 473 transitions. [2021-10-28 09:36:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:36:27,923 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 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 127 [2021-10-28 09:36:27,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:27,924 INFO L225 Difference]: With dead ends: 421 [2021-10-28 09:36:27,924 INFO L226 Difference]: Without dead ends: 280 [2021-10-28 09:36:27,925 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:36:27,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-28 09:36:27,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 248. [2021-10-28 09:36:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 238 states have (on average 1.1554621848739495) internal successors, (275), 247 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) [2021-10-28 09:36:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 275 transitions. [2021-10-28 09:36:27,937 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 275 transitions. Word has length 127 [2021-10-28 09:36:27,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:27,937 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 275 transitions. [2021-10-28 09:36:27,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 22 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 275 transitions. [2021-10-28 09:36:27,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-10-28 09:36:27,939 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:27,939 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:27,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:28,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-10-28 09:36:28,153 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 395217742, now seen corresponding path program 12 times [2021-10-28 09:36:28,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:28,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610449954] [2021-10-28 09:36:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:28,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:28,587 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:28,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:28,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610449954] [2021-10-28 09:36:28,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610449954] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:28,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490977608] [2021-10-28 09:36:28,587 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:36:28,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:28,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:28,596 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:28,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 09:36:31,223 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2021-10-28 09:36:31,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:31,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-28 09:36:31,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:32,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490977608] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:32,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:32,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 22 [2021-10-28 09:36:32,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446930187] [2021-10-28 09:36:32,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-28 09:36:32,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:32,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-28 09:36:32,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:36:32,196 INFO L87 Difference]: Start difference. First operand 248 states and 275 transitions. Second operand has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 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) [2021-10-28 09:36:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:32,651 INFO L93 Difference]: Finished difference Result 394 states and 445 transitions. [2021-10-28 09:36:32,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 09:36:32,652 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 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 128 [2021-10-28 09:36:32,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:32,653 INFO L225 Difference]: With dead ends: 394 [2021-10-28 09:36:32,653 INFO L226 Difference]: Without dead ends: 250 [2021-10-28 09:36:32,653 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 111 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-10-28 09:36:32,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-28 09:36:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2021-10-28 09:36:32,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 238 states have (on average 1.1512605042016806) internal successors, (274), 247 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 274 transitions. [2021-10-28 09:36:32,664 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 274 transitions. Word has length 128 [2021-10-28 09:36:32,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:32,665 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 274 transitions. [2021-10-28 09:36:32,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.909090909090909) internal successors, (130), 22 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) [2021-10-28 09:36:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 274 transitions. [2021-10-28 09:36:32,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-10-28 09:36:32,666 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:32,667 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:32,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:32,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-10-28 09:36:32,872 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:32,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:32,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1279768613, now seen corresponding path program 12 times [2021-10-28 09:36:32,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:32,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622111824] [2021-10-28 09:36:32,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:32,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:33,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:33,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622111824] [2021-10-28 09:36:33,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622111824] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:33,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580333707] [2021-10-28 09:36:33,131 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-28 09:36:33,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:33,132 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:33,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-28 09:36:35,469 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2021-10-28 09:36:35,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:35,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-28 09:36:35,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:35,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580333707] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:35,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:35,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 09:36:35,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570121087] [2021-10-28 09:36:35,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:36:35,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:36:35,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:36:35,834 INFO L87 Difference]: Start difference. First operand 248 states and 274 transitions. Second operand has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:35,968 INFO L93 Difference]: Finished difference Result 426 states and 478 transitions. [2021-10-28 09:36:35,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:36:35,969 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 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 132 [2021-10-28 09:36:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:35,970 INFO L225 Difference]: With dead ends: 426 [2021-10-28 09:36:35,970 INFO L226 Difference]: Without dead ends: 285 [2021-10-28 09:36:35,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:36:35,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-28 09:36:35,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 253. [2021-10-28 09:36:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 243 states have (on average 1.1522633744855968) internal successors, (280), 252 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) [2021-10-28 09:36:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 280 transitions. [2021-10-28 09:36:35,983 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 280 transitions. Word has length 132 [2021-10-28 09:36:35,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:35,983 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 280 transitions. [2021-10-28 09:36:35,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.043478260869565) internal successors, (139), 23 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:35,984 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 280 transitions. [2021-10-28 09:36:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-10-28 09:36:35,985 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:35,985 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:35,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:36,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-28 09:36:36,196 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:36,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1786182727, now seen corresponding path program 13 times [2021-10-28 09:36:36,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:36,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497220836] [2021-10-28 09:36:36,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:36,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:36,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:36,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497220836] [2021-10-28 09:36:36,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497220836] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:36,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926239079] [2021-10-28 09:36:36,593 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:36:36,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:36,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:36,617 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:36,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-28 09:36:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:38,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-28 09:36:38,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:39,342 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 0 proven. 855 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:39,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926239079] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:39,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:39,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-10-28 09:36:39,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278035601] [2021-10-28 09:36:39,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-28 09:36:39,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:39,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-28 09:36:39,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:36:39,343 INFO L87 Difference]: Start difference. First operand 253 states and 280 transitions. Second operand has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 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) [2021-10-28 09:36:39,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:39,943 INFO L93 Difference]: Finished difference Result 399 states and 450 transitions. [2021-10-28 09:36:39,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 09:36:39,944 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 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 133 [2021-10-28 09:36:39,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:39,946 INFO L225 Difference]: With dead ends: 399 [2021-10-28 09:36:39,946 INFO L226 Difference]: Without dead ends: 255 [2021-10-28 09:36:39,947 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 115 SyntacticMatches, 18 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2021-10-28 09:36:39,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-28 09:36:39,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2021-10-28 09:36:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 243 states have (on average 1.1481481481481481) internal successors, (279), 252 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 279 transitions. [2021-10-28 09:36:39,962 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 279 transitions. Word has length 133 [2021-10-28 09:36:39,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:39,962 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 279 transitions. [2021-10-28 09:36:39,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.869565217391305) internal successors, (135), 23 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) [2021-10-28 09:36:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 279 transitions. [2021-10-28 09:36:39,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-10-28 09:36:39,964 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:39,964 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:40,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:40,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-28 09:36:40,183 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:40,184 INFO L85 PathProgramCache]: Analyzing trace with hash -567672048, now seen corresponding path program 13 times [2021-10-28 09:36:40,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:40,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085778505] [2021-10-28 09:36:40,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:40,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:40,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:40,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085778505] [2021-10-28 09:36:40,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085778505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:40,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306338034] [2021-10-28 09:36:40,515 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 09:36:40,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:40,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:40,517 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:40,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-28 09:36:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:42,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 09:36:42,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:42,497 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:42,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306338034] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:42,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:42,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 09:36:42,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269569629] [2021-10-28 09:36:42,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 09:36:42,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:42,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 09:36:42,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:36:42,499 INFO L87 Difference]: Start difference. First operand 253 states and 279 transitions. Second operand has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:42,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:42,619 INFO L93 Difference]: Finished difference Result 431 states and 483 transitions. [2021-10-28 09:36:42,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:36:42,619 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 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 137 [2021-10-28 09:36:42,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:42,621 INFO L225 Difference]: With dead ends: 431 [2021-10-28 09:36:42,621 INFO L226 Difference]: Without dead ends: 290 [2021-10-28 09:36:42,622 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:36:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-10-28 09:36:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 258. [2021-10-28 09:36:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.1491935483870968) internal successors, (285), 257 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) [2021-10-28 09:36:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 285 transitions. [2021-10-28 09:36:42,636 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 285 transitions. Word has length 137 [2021-10-28 09:36:42,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:42,637 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 285 transitions. [2021-10-28 09:36:42,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.0) internal successors, (144), 24 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:42,637 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 285 transitions. [2021-10-28 09:36:42,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-10-28 09:36:42,639 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:42,639 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:42,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:42,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:42,864 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:42,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1072698926, now seen corresponding path program 14 times [2021-10-28 09:36:42,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:42,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119824407] [2021-10-28 09:36:42,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:42,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:43,377 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:43,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:43,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119824407] [2021-10-28 09:36:43,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119824407] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:43,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861997187] [2021-10-28 09:36:43,378 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:36:43,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:43,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:43,380 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:43,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-28 09:36:45,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:36:45,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:45,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-28 09:36:45,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:46,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861997187] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:46,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:46,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 24 [2021-10-28 09:36:46,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259338329] [2021-10-28 09:36:46,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-28 09:36:46,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-28 09:36:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:36:46,989 INFO L87 Difference]: Start difference. First operand 258 states and 285 transitions. Second operand has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 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) [2021-10-28 09:36:47,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:47,534 INFO L93 Difference]: Finished difference Result 404 states and 455 transitions. [2021-10-28 09:36:47,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-28 09:36:47,535 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 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 138 [2021-10-28 09:36:47,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:47,536 INFO L225 Difference]: With dead ends: 404 [2021-10-28 09:36:47,536 INFO L226 Difference]: Without dead ends: 260 [2021-10-28 09:36:47,537 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 119 SyntacticMatches, 19 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-10-28 09:36:47,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-28 09:36:47,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 258. [2021-10-28 09:36:47,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 248 states have (on average 1.1451612903225807) internal successors, (284), 257 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:47,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 284 transitions. [2021-10-28 09:36:47,552 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 284 transitions. Word has length 138 [2021-10-28 09:36:47,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:47,553 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 284 transitions. [2021-10-28 09:36:47,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.833333333333333) internal successors, (140), 24 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) [2021-10-28 09:36:47,553 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 284 transitions. [2021-10-28 09:36:47,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2021-10-28 09:36:47,554 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:47,555 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:47,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-10-28 09:36:47,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-10-28 09:36:47,768 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:47,768 INFO L85 PathProgramCache]: Analyzing trace with hash 19452677, now seen corresponding path program 14 times [2021-10-28 09:36:47,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:47,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898486839] [2021-10-28 09:36:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:47,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:48,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:48,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898486839] [2021-10-28 09:36:48,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898486839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:48,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003188394] [2021-10-28 09:36:48,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:36:48,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:48,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:48,204 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:48,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-28 09:36:50,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:36:50,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:50,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-28 09:36:50,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:50,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003188394] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:50,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:50,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 09:36:50,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967744714] [2021-10-28 09:36:50,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:36:50,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:50,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:36:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:36:50,394 INFO L87 Difference]: Start difference. First operand 258 states and 284 transitions. Second operand has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:50,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:50,537 INFO L93 Difference]: Finished difference Result 436 states and 488 transitions. [2021-10-28 09:36:50,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:36:50,537 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 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 142 [2021-10-28 09:36:50,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:50,539 INFO L225 Difference]: With dead ends: 436 [2021-10-28 09:36:50,539 INFO L226 Difference]: Without dead ends: 295 [2021-10-28 09:36:50,539 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:36:50,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-10-28 09:36:50,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 263. [2021-10-28 09:36:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 253 states have (on average 1.1462450592885376) internal successors, (290), 262 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) [2021-10-28 09:36:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 290 transitions. [2021-10-28 09:36:50,549 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 290 transitions. Word has length 142 [2021-10-28 09:36:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:50,550 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 290 transitions. [2021-10-28 09:36:50,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.96) internal successors, (149), 25 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 290 transitions. [2021-10-28 09:36:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-10-28 09:36:50,551 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:50,552 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:50,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:50,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2021-10-28 09:36:50,763 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:50,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:50,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2093696217, now seen corresponding path program 15 times [2021-10-28 09:36:50,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:50,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510176696] [2021-10-28 09:36:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:50,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:51,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:51,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510176696] [2021-10-28 09:36:51,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510176696] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:51,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531720363] [2021-10-28 09:36:51,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:36:51,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:51,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:51,266 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:51,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-28 09:36:53,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2021-10-28 09:36:53,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:36:53,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-28 09:36:53,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:36:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 1050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:54,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531720363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:54,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:36:54,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 25 [2021-10-28 09:36:54,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841906191] [2021-10-28 09:36:54,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-28 09:36:54,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:36:54,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-28 09:36:54,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:36:54,884 INFO L87 Difference]: Start difference. First operand 263 states and 290 transitions. Second operand has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 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) [2021-10-28 09:36:55,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:36:55,553 INFO L93 Difference]: Finished difference Result 409 states and 460 transitions. [2021-10-28 09:36:55,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-28 09:36:55,554 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 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 143 [2021-10-28 09:36:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:36:55,556 INFO L225 Difference]: With dead ends: 409 [2021-10-28 09:36:55,557 INFO L226 Difference]: Without dead ends: 265 [2021-10-28 09:36:55,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 123 SyntacticMatches, 20 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-28 09:36:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-10-28 09:36:55,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2021-10-28 09:36:55,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 253 states have (on average 1.1422924901185771) internal successors, (289), 262 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:36:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 289 transitions. [2021-10-28 09:36:55,574 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 289 transitions. Word has length 143 [2021-10-28 09:36:55,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:36:55,574 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 289 transitions. [2021-10-28 09:36:55,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.8) internal successors, (145), 25 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) [2021-10-28 09:36:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 289 transitions. [2021-10-28 09:36:55,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-10-28 09:36:55,576 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:36:55,576 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:36:55,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-28 09:36:55,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:55,788 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:36:55,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:36:55,789 INFO L85 PathProgramCache]: Analyzing trace with hash -366562256, now seen corresponding path program 15 times [2021-10-28 09:36:55,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:36:55,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686922126] [2021-10-28 09:36:55,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:36:55,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:36:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:36:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:36:56,190 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:36:56,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686922126] [2021-10-28 09:36:56,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686922126] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:36:56,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578441570] [2021-10-28 09:36:56,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 09:36:56,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:36:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:36:56,196 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:36:56,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-28 09:37:09,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-10-28 09:37:09,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:37:09,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 09:37:09,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:10,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578441570] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:10,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:37:10,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 09:37:10,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166449700] [2021-10-28 09:37:10,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:37:10,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:37:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:37:10,242 INFO L87 Difference]: Start difference. First operand 263 states and 289 transitions. Second operand has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:10,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:10,416 INFO L93 Difference]: Finished difference Result 441 states and 493 transitions. [2021-10-28 09:37:10,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 09:37:10,417 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 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 147 [2021-10-28 09:37:10,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:10,419 INFO L225 Difference]: With dead ends: 441 [2021-10-28 09:37:10,419 INFO L226 Difference]: Without dead ends: 300 [2021-10-28 09:37:10,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:37:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-28 09:37:10,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 268. [2021-10-28 09:37:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 258 states have (on average 1.1434108527131783) internal successors, (295), 267 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) [2021-10-28 09:37:10,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 295 transitions. [2021-10-28 09:37:10,436 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 295 transitions. Word has length 147 [2021-10-28 09:37:10,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:10,437 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 295 transitions. [2021-10-28 09:37:10,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 295 transitions. [2021-10-28 09:37:10,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-10-28 09:37:10,439 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:10,439 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:10,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:10,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:10,653 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:37:10,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:10,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1282832114, now seen corresponding path program 16 times [2021-10-28 09:37:10,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:10,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997787989] [2021-10-28 09:37:10,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:10,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:10,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:11,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:11,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997787989] [2021-10-28 09:37:11,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997787989] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:11,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826920988] [2021-10-28 09:37:11,243 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:37:11,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:11,248 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:37:11,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-28 09:37:13,075 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:37:13,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:37:13,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-28 09:37:13,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 1155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:14,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826920988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:14,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:37:14,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 26 [2021-10-28 09:37:14,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303177531] [2021-10-28 09:37:14,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-28 09:37:14,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:14,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-28 09:37:14,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:37:14,505 INFO L87 Difference]: Start difference. First operand 268 states and 295 transitions. Second operand has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 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) [2021-10-28 09:37:15,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:15,193 INFO L93 Difference]: Finished difference Result 414 states and 465 transitions. [2021-10-28 09:37:15,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-28 09:37:15,194 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 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 148 [2021-10-28 09:37:15,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:15,196 INFO L225 Difference]: With dead ends: 414 [2021-10-28 09:37:15,196 INFO L226 Difference]: Without dead ends: 270 [2021-10-28 09:37:15,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 127 SyntacticMatches, 21 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2021-10-28 09:37:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-10-28 09:37:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 268. [2021-10-28 09:37:15,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 258 states have (on average 1.1395348837209303) internal successors, (294), 267 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 294 transitions. [2021-10-28 09:37:15,209 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 294 transitions. Word has length 148 [2021-10-28 09:37:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:15,209 INFO L470 AbstractCegarLoop]: Abstraction has 268 states and 294 transitions. [2021-10-28 09:37:15,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.769230769230769) internal successors, (150), 26 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) [2021-10-28 09:37:15,210 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 294 transitions. [2021-10-28 09:37:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-10-28 09:37:15,211 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:15,211 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:15,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:15,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:15,432 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:37:15,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:15,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1393415653, now seen corresponding path program 16 times [2021-10-28 09:37:15,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:15,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159397393] [2021-10-28 09:37:15,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:15,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:15,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:15,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:15,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159397393] [2021-10-28 09:37:15,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159397393] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:15,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198942553] [2021-10-28 09:37:15,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 09:37:15,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:15,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:15,863 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:37:15,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 09:37:17,872 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 09:37:17,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:37:17,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 09:37:17,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:18,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198942553] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:18,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:37:18,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 09:37:18,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613849274] [2021-10-28 09:37:18,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 09:37:18,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:18,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 09:37:18,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:37:18,358 INFO L87 Difference]: Start difference. First operand 268 states and 294 transitions. Second operand has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:18,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:18,498 INFO L93 Difference]: Finished difference Result 446 states and 498 transitions. [2021-10-28 09:37:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 09:37:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 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 152 [2021-10-28 09:37:18,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:18,500 INFO L225 Difference]: With dead ends: 446 [2021-10-28 09:37:18,500 INFO L226 Difference]: Without dead ends: 305 [2021-10-28 09:37:18,500 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:37:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-10-28 09:37:18,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 273. [2021-10-28 09:37:18,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 263 states have (on average 1.1406844106463878) internal successors, (300), 272 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) [2021-10-28 09:37:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 300 transitions. [2021-10-28 09:37:18,515 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 300 transitions. Word has length 152 [2021-10-28 09:37:18,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:18,516 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 300 transitions. [2021-10-28 09:37:18,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.888888888888889) internal successors, (159), 27 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 300 transitions. [2021-10-28 09:37:18,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-10-28 09:37:18,517 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:18,517 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:18,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:18,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2021-10-28 09:37:18,728 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:37:18,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:18,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1736875513, now seen corresponding path program 17 times [2021-10-28 09:37:18,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:18,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096891575] [2021-10-28 09:37:18,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:18,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:18,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:19,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:19,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:19,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096891575] [2021-10-28 09:37:19,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096891575] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:19,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055155203] [2021-10-28 09:37:19,253 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:37:19,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:19,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:19,254 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:37:19,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-28 09:37:21,130 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2021-10-28 09:37:21,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:37:21,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-28 09:37:21,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:22,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:22,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055155203] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:22,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:37:22,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 27 [2021-10-28 09:37:22,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974419449] [2021-10-28 09:37:22,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-28 09:37:22,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:22,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-28 09:37:22,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:37:22,675 INFO L87 Difference]: Start difference. First operand 273 states and 300 transitions. Second operand has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 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) [2021-10-28 09:37:23,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:23,561 INFO L93 Difference]: Finished difference Result 419 states and 470 transitions. [2021-10-28 09:37:23,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-28 09:37:23,562 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 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 153 [2021-10-28 09:37:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:23,564 INFO L225 Difference]: With dead ends: 419 [2021-10-28 09:37:23,565 INFO L226 Difference]: Without dead ends: 275 [2021-10-28 09:37:23,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 131 SyntacticMatches, 22 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2021-10-28 09:37:23,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-10-28 09:37:23,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2021-10-28 09:37:23,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 263 states have (on average 1.1368821292775666) internal successors, (299), 272 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 299 transitions. [2021-10-28 09:37:23,585 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 299 transitions. Word has length 153 [2021-10-28 09:37:23,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:23,586 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 299 transitions. [2021-10-28 09:37:23,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.7407407407407405) internal successors, (155), 27 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) [2021-10-28 09:37:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 299 transitions. [2021-10-28 09:37:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-10-28 09:37:23,588 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:23,588 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:23,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-10-28 09:37:23,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:23,816 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:37:23,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash -414155440, now seen corresponding path program 17 times [2021-10-28 09:37:23,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:23,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456116978] [2021-10-28 09:37:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:23,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:37:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:24,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:37:24,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456116978] [2021-10-28 09:37:24,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456116978] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:24,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181219784] [2021-10-28 09:37:24,296 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 09:37:24,296 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:24,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:37:24,297 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:37:24,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-28 09:37:26,521 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2021-10-28 09:37:26,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:37:26,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:37:26,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:37:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:37:26,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181219784] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:37:26,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:37:26,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 28 [2021-10-28 09:37:26,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206551580] [2021-10-28 09:37:26,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-28 09:37:26,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:37:26,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-28 09:37:26,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:37:26,993 INFO L87 Difference]: Start difference. First operand 273 states and 299 transitions. Second operand has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:27,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:37:27,165 INFO L93 Difference]: Finished difference Result 451 states and 503 transitions. [2021-10-28 09:37:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-28 09:37:27,166 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 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 157 [2021-10-28 09:37:27,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:37:27,169 INFO L225 Difference]: With dead ends: 451 [2021-10-28 09:37:27,169 INFO L226 Difference]: Without dead ends: 310 [2021-10-28 09:37:27,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-28 09:37:27,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-10-28 09:37:27,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 278. [2021-10-28 09:37:27,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 268 states have (on average 1.1380597014925373) internal successors, (305), 277 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) [2021-10-28 09:37:27,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 305 transitions. [2021-10-28 09:37:27,180 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 305 transitions. Word has length 157 [2021-10-28 09:37:27,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:37:27,180 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 305 transitions. [2021-10-28 09:37:27,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 5.857142857142857) internal successors, (164), 28 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:37:27,181 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 305 transitions. [2021-10-28 09:37:27,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-10-28 09:37:27,182 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:37:27,182 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:27,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:37:27,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:37:27,404 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2021-10-28 09:37:27,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:37:27,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1536746478, now seen corresponding path program 18 times [2021-10-28 09:37:27,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:37:27,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23993981] [2021-10-28 09:37:27,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:37:27,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:37:27,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:27,497 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:37:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:37:27,636 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:37:27,636 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:37:27,637 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,639 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,640 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,641 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,642 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,643 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,644 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,645 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,646 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-28 09:37:27,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-28 09:37:27,650 INFO L731 BasicCegarLoop]: Path program histogram: [18, 17, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:37:27,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:37:27,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:37:27 BoogieIcfgContainer [2021-10-28 09:37:27,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:37:27,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:37:27,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:37:27,792 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:37:27,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:35:14" (3/4) ... [2021-10-28 09:37:27,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:37:27,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:37:27,801 INFO L168 Benchmark]: Toolchain (without parser) took 134569.58 ms. Allocated memory was 104.9 MB in the beginning and 685.8 MB in the end (delta: 580.9 MB). Free memory was 68.6 MB in the beginning and 210.0 MB in the end (delta: -141.4 MB). Peak memory consumption was 438.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:27,802 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 85.4 MB in the beginning and 85.3 MB in the end (delta: 57.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:27,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.04 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 78.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:27,803 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 76.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:27,804 INFO L168 Benchmark]: Boogie Preprocessor took 89.94 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 74.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:27,804 INFO L168 Benchmark]: RCFGBuilder took 792.49 ms. Allocated memory is still 104.9 MB. Free memory was 74.5 MB in the beginning and 55.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:27,804 INFO L168 Benchmark]: TraceAbstraction took 133183.66 ms. Allocated memory was 104.9 MB in the beginning and 685.8 MB in the end (delta: 580.9 MB). Free memory was 55.0 MB in the beginning and 210.0 MB in the end (delta: -155.0 MB). Peak memory consumption was 426.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:37:27,805 INFO L168 Benchmark]: Witness Printer took 7.64 ms. Allocated memory is still 685.8 MB. Free memory is still 210.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:37:27,807 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 104.9 MB. Free memory was 85.4 MB in the beginning and 85.3 MB in the end (delta: 57.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 398.04 ms. Allocated memory is still 104.9 MB. Free memory was 68.4 MB in the beginning and 78.7 MB in the end (delta: -10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 104.9 MB. Free memory was 78.7 MB in the beginning and 76.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.94 ms. Allocated memory is still 104.9 MB. Free memory was 76.3 MB in the beginning and 74.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 792.49 ms. Allocated memory is still 104.9 MB. Free memory was 74.5 MB in the beginning and 55.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 133183.66 ms. Allocated memory was 104.9 MB in the beginning and 685.8 MB in the end (delta: 580.9 MB). Free memory was 55.0 MB in the beginning and 210.0 MB in the end (delta: -155.0 MB). Peak memory consumption was 426.8 MB. Max. memory is 16.1 GB. * Witness Printer took 7.64 ms. Allocated memory is still 685.8 MB. Free memory is still 210.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 165, overapproximation of bitwiseAnd at line 166. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sa ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L232] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L233] b = base2flt(mb, eb) [L235] COND FALSE !(a < zero) [L238] COND TRUE a > zero [L239] tmp = 1 [L243] sa = tmp [L140] unsigned int res ; [L141] unsigned int ma ; [L142] unsigned int mb ; [L143] unsigned long long accu ; [L144] int ea ; [L145] int eb ; [L146] unsigned int tmp ; [L147] unsigned int __retres10 ; [L150] COND FALSE !(a < b) [L157] COND FALSE !(! b) [L163] ma = a & ((1U << 24U) - 1U) [L164] EXPR (int )(a >> 24U) - 128 [L164] ea = (int )(a >> 24U) - 128 [L165] ma = ma | (1U << 24U) [L166] mb = b & ((1U << 24U) - 1U) [L167] (int )(b >> 24U) - 128 - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 37]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 164]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 169]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 170]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 193]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 206]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 132.9s, OverallIterations: 68, TraceHistogramMax: 25, PathProgramHistogramMax: 18, EmptinessCheckTime: 0.1s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7743 SDtfs, 8281 SDslu, 35541 SDs, 0 SdLazy, 19454 SolverSat, 896 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5803 GetRequests, 4726 SyntacticMatches, 253 SemanticMatches, 824 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1223 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=67, InterpolantAutomatonStates: 883, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 67 MinimizatonAttempts, 1759 StatesRemovedByMinimization, 65 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 24.3s SatisfiabilityAnalysisTime, 37.2s InterpolantComputationTime, 10329 NumberOfCodeBlocks, 10229 NumberOfCodeBlocksAsserted, 387 NumberOfCheckSat, 10049 ConstructedInterpolants, 0 QuantifiedInterpolants, 40051 SizeOfPredicates, 117 NumberOfNonLiveVariables, 12799 ConjunctsInSsa, 1163 ConjunctsInUnsatCore, 122 InterpolantComputations, 22 PerfectInterpolantSequences, 302/45035 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:37:27,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1fae25-6afd-482d-a24e-2b82b5c93fbd/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...