./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt --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 becf68b1b41bf8f9c75117f82605e436bc8d5a41 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........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:34:43,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:34:43,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:34:43,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:34:43,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:34:43,742 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:34:43,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:34:43,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:34:43,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:34:43,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:34:43,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:34:43,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:34:43,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:34:43,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:34:43,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:34:43,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:34:43,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:34:43,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:34:43,768 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:34:43,771 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:34:43,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:34:43,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:34:43,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:34:43,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:34:43,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:34:43,783 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:34:43,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:34:43,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:34:43,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:34:43,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:34:43,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:34:43,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:34:43,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:34:43,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:34:43,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:34:43,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:34:43,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:34:43,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:34:43,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:34:43,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:34:43,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:34:43,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 00:34:43,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:34:43,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:34:43,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:34:43,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:34:43,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:34:43,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:34:43,829 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:34:43,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:34:43,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:34:43,830 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:34:43,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:34:43,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:34:43,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:34:43,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:34:43,832 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:34:43,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:34:43,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:34:43,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:34:43,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:34:43,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:43,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:34:43,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:34:43,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:34:43,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:34:43,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:34:43,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:34:43,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:34:43,837 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_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> becf68b1b41bf8f9c75117f82605e436bc8d5a41 [2021-10-13 00:34:44,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:34:44,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:34:44,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:34:44,199 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:34:44,200 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:34:44,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-10-13 00:34:44,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/data/7fd2a2d11/6ad75f354f3f49a69790d7055c82a3fb/FLAG8d18d9475 [2021-10-13 00:34:44,847 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:34:44,849 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-10-13 00:34:44,861 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/data/7fd2a2d11/6ad75f354f3f49a69790d7055c82a3fb/FLAG8d18d9475 [2021-10-13 00:34:45,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/data/7fd2a2d11/6ad75f354f3f49a69790d7055c82a3fb [2021-10-13 00:34:45,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:34:45,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:34:45,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:45,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:34:45,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:34:45,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6482a2bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45, skipping insertion in model container [2021-10-13 00:34:45,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:34:45,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:34:45,468 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_ed0ed022-d740-41d5-b3df-5a538e2a91b7/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-10-13 00:34:45,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:45,486 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:34:45,499 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_ed0ed022-d740-41d5-b3df-5a538e2a91b7/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-10-13 00:34:45,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:34:45,517 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:34:45,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45 WrapperNode [2021-10-13 00:34:45,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:34:45,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:45,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:34:45,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:34:45,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:34:45,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:34:45,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:34:45,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:34:45,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:34:45,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:34:45,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:34:45,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:34:45,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (1/1) ... [2021-10-13 00:34:45,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:34:45,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:45,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:34:45,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:34:45,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:34:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:34:45,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:34:45,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:34:45,932 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:34:45,932 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 00:34:45,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:45 BoogieIcfgContainer [2021-10-13 00:34:45,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:34:45,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:34:45,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:34:45,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:34:45,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:34:45" (1/3) ... [2021-10-13 00:34:45,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88ce39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:45, skipping insertion in model container [2021-10-13 00:34:45,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:34:45" (2/3) ... [2021-10-13 00:34:45,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88ce39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:34:45, skipping insertion in model container [2021-10-13 00:34:45,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:45" (3/3) ... [2021-10-13 00:34:45,943 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-10-13 00:34:45,948 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:34:45,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 00:34:46,018 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:34:46,026 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, mConcurrency=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 [2021-10-13 00:34:46,027 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 00:34:46,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 00:34:46,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:46,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 00:34:46,051 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:46,057 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-10-13 00:34:46,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:46,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950391947] [2021-10-13 00:34:46,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:46,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:46,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:46,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:46,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950391947] [2021-10-13 00:34:46,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950391947] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:46,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:46,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:46,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315790071] [2021-10-13 00:34:46,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:46,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:46,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:46,297 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:46,342 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-10-13 00:34:46,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:46,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-13 00:34:46,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:46,353 INFO L225 Difference]: With dead ends: 34 [2021-10-13 00:34:46,354 INFO L226 Difference]: Without dead ends: 15 [2021-10-13 00:34:46,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-13 00:34:46,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-13 00:34:46,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 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) [2021-10-13 00:34:46,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-13 00:34:46,420 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-10-13 00:34:46,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:46,420 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-13 00:34:46,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,421 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-13 00:34:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 00:34:46,421 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:46,422 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:34:46,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:34:46,422 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:46,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:46,423 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-10-13 00:34:46,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:46,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188647459] [2021-10-13 00:34:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:46,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:46,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:46,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188647459] [2021-10-13 00:34:46,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188647459] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:46,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:46,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:34:46,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965786421] [2021-10-13 00:34:46,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:34:46,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:34:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:46,464 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:46,473 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-13 00:34:46,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:34:46,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 00:34:46,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:46,474 INFO L225 Difference]: With dead ends: 14 [2021-10-13 00:34:46,475 INFO L226 Difference]: Without dead ends: 13 [2021-10-13 00:34:46,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:34:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-13 00:34:46,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-13 00:34:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 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) [2021-10-13 00:34:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-10-13 00:34:46,479 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2021-10-13 00:34:46,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:46,479 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-10-13 00:34:46,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-10-13 00:34:46,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 00:34:46,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:46,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:46,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:34:46,481 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:46,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:46,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-10-13 00:34:46,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:46,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371697327] [2021-10-13 00:34:46,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:46,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:46,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:46,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:46,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371697327] [2021-10-13 00:34:46,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371697327] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:46,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:46,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:46,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115905848] [2021-10-13 00:34:46,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:34:46,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:46,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:34:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:34:46,584 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-13 00:34:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:46,627 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-13 00:34:46,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:34:46,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2021-10-13 00:34:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:46,628 INFO L225 Difference]: With dead ends: 18 [2021-10-13 00:34:46,629 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 00:34:46,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:46,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 00:34:46,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 00:34:46,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 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) [2021-10-13 00:34:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-13 00:34:46,633 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-10-13 00:34:46,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:46,634 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-13 00:34:46,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-10-13 00:34:46,634 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-13 00:34:46,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:34:46,635 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:46,635 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:46,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:34:46,636 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:46,636 INFO L82 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2021-10-13 00:34:46,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:46,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562471641] [2021-10-13 00:34:46,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:46,638 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:46,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:46,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562471641] [2021-10-13 00:34:46,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562471641] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:46,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803525125] [2021-10-13 00:34:46,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:46,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:46,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:46,684 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:46,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 00:34:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:46,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:34:46,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:46,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803525125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:46,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:46,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-13 00:34:46,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413434400] [2021-10-13 00:34:46,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:34:46,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:46,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:34:46,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:34:46,842 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:46,864 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-10-13 00:34:46,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:34:46,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-13 00:34:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:46,867 INFO L225 Difference]: With dead ends: 20 [2021-10-13 00:34:46,868 INFO L226 Difference]: Without dead ends: 19 [2021-10-13 00:34:46,868 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:34:46,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-13 00:34:46,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-10-13 00:34:46,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 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) [2021-10-13 00:34:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-10-13 00:34:46,876 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2021-10-13 00:34:46,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:46,876 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-10-13 00:34:46,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-10-13 00:34:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:34:46,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:46,878 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 00:34:46,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:47,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:47,095 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:47,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:47,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2021-10-13 00:34:47,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:47,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632744492] [2021-10-13 00:34:47,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:47,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:34:47,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:47,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632744492] [2021-10-13 00:34:47,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632744492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:47,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:34:47,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:34:47,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248904756] [2021-10-13 00:34:47,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:34:47,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:47,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:34:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:34:47,189 INFO L87 Difference]: Start difference. First operand 18 states and 18 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) [2021-10-13 00:34:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:47,216 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-13 00:34:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:34:47,216 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 [2021-10-13 00:34:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:47,218 INFO L225 Difference]: With dead ends: 18 [2021-10-13 00:34:47,218 INFO L226 Difference]: Without dead ends: 17 [2021-10-13 00:34:47,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:47,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-13 00:34:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-13 00:34:47,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-10-13 00:34:47,229 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2021-10-13 00:34:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:47,229 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-10-13 00:34:47,229 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) [2021-10-13 00:34:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-10-13 00:34:47,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:34:47,230 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:47,231 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-13 00:34:47,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:34:47,231 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:47,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2021-10-13 00:34:47,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:47,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004220343] [2021-10-13 00:34:47,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:47,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:47,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:47,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004220343] [2021-10-13 00:34:47,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004220343] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:47,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724489989] [2021-10-13 00:34:47,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:47,334 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:47,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:47,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:47,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 00:34:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:47,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:34:47,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:47,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724489989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:34:47,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:34:47,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-10-13 00:34:47,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192587025] [2021-10-13 00:34:47,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:34:47,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:47,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:34:47,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:34:47,517 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2021-10-13 00:34:47,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:47,556 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-13 00:34:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:34:47,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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 [2021-10-13 00:34:47,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:47,559 INFO L225 Difference]: With dead ends: 17 [2021-10-13 00:34:47,559 INFO L226 Difference]: Without dead ends: 16 [2021-10-13 00:34:47,562 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 44.9ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:34:47,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-13 00:34:47,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-13 00:34:47,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 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) [2021-10-13 00:34:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-13 00:34:47,571 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-10-13 00:34:47,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:47,572 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-13 00:34:47,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 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) [2021-10-13 00:34:47,572 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-13 00:34:47,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:34:47,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:47,573 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-10-13 00:34:47,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:47,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:47,798 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:47,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:47,798 INFO L82 PathProgramCache]: Analyzing trace with hash 487275813, now seen corresponding path program 2 times [2021-10-13 00:34:47,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:47,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184968584] [2021-10-13 00:34:47,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:47,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:47,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:47,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184968584] [2021-10-13 00:34:47,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184968584] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:47,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106732821] [2021-10-13 00:34:47,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:34:47,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:47,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:47,859 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:47,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 00:34:47,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:34:47,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:47,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:34:47,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:48,019 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:48,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106732821] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:48,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:48,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-13 00:34:48,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627967791] [2021-10-13 00:34:48,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:34:48,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:34:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:48,023 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:48,043 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-10-13 00:34:48,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:34:48,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 00:34:48,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:48,045 INFO L225 Difference]: With dead ends: 23 [2021-10-13 00:34:48,045 INFO L226 Difference]: Without dead ends: 22 [2021-10-13 00:34:48,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:34:48,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-13 00:34:48,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-10-13 00:34:48,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-10-13 00:34:48,050 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2021-10-13 00:34:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:48,050 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-10-13 00:34:48,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-10-13 00:34:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:34:48,052 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:48,052 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1] [2021-10-13 00:34:48,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-13 00:34:48,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:48,279 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:48,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:48,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1418773263, now seen corresponding path program 3 times [2021-10-13 00:34:48,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:48,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091967482] [2021-10-13 00:34:48,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:48,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:48,358 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:48,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:48,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091967482] [2021-10-13 00:34:48,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091967482] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:48,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688044180] [2021-10-13 00:34:48,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:34:48,360 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:48,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:48,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:48,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 00:34:48,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-13 00:34:48,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:48,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:34:48,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:48,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688044180] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:48,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:48,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-13 00:34:48,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652738910] [2021-10-13 00:34:48,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:34:48,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:48,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:34:48,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:34:48,540 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:48,573 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-10-13 00:34:48,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:34:48,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-13 00:34:48,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:48,579 INFO L225 Difference]: With dead ends: 28 [2021-10-13 00:34:48,581 INFO L226 Difference]: Without dead ends: 27 [2021-10-13 00:34:48,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:34:48,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-13 00:34:48,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-13 00:34:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-10-13 00:34:48,589 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 20 [2021-10-13 00:34:48,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:48,589 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-10-13 00:34:48,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-10-13 00:34:48,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 00:34:48,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:48,592 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-10-13 00:34:48,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:48,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-10-13 00:34:48,806 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:48,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:48,807 INFO L82 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 4 times [2021-10-13 00:34:48,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:48,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894766444] [2021-10-13 00:34:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:48,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:48,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:48,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894766444] [2021-10-13 00:34:48,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894766444] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:48,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129055022] [2021-10-13 00:34:48,875 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:34:48,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:48,876 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:48,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 00:34:48,950 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:34:48,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:48,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:34:48,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:49,092 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:49,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129055022] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:49,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:49,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-10-13 00:34:49,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355981753] [2021-10-13 00:34:49,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 00:34:49,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:49,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:34:49,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:34:49,099 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:49,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:49,132 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-10-13 00:34:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:34:49,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 00:34:49,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:49,133 INFO L225 Difference]: With dead ends: 33 [2021-10-13 00:34:49,134 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 00:34:49,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.2ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:34:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 00:34:49,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-13 00:34:49,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:49,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-10-13 00:34:49,139 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 25 [2021-10-13 00:34:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:49,140 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-10-13 00:34:49,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-10-13 00:34:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 00:34:49,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:49,142 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1] [2021-10-13 00:34:49,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:49,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:49,359 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:49,359 INFO L82 PathProgramCache]: Analyzing trace with hash -977343119, now seen corresponding path program 5 times [2021-10-13 00:34:49,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:49,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826189349] [2021-10-13 00:34:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:49,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:49,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:49,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826189349] [2021-10-13 00:34:49,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826189349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:49,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006538042] [2021-10-13 00:34:49,462 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:34:49,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:49,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:49,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:49,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 00:34:49,558 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-13 00:34:49,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:49,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:34:49,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:49,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006538042] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:49,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:49,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-13 00:34:49,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289670602] [2021-10-13 00:34:49,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 00:34:49,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:49,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 00:34:49,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:34:49,707 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:49,757 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-10-13 00:34:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:34:49,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-13 00:34:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:49,759 INFO L225 Difference]: With dead ends: 38 [2021-10-13 00:34:49,759 INFO L226 Difference]: Without dead ends: 37 [2021-10-13 00:34:49,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.4ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:34:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-13 00:34:49,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-10-13 00:34:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 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) [2021-10-13 00:34:49,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-10-13 00:34:49,765 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 30 [2021-10-13 00:34:49,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:49,765 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-10-13 00:34:49,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:49,766 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-10-13 00:34:49,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 00:34:49,767 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:49,767 INFO L512 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-10-13 00:34:49,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:49,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 00:34:49,995 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:49,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1362746405, now seen corresponding path program 6 times [2021-10-13 00:34:49,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:49,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809732674] [2021-10-13 00:34:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:49,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:50,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:50,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809732674] [2021-10-13 00:34:50,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809732674] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:50,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544269833] [2021-10-13 00:34:50,127 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:34:50,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:50,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:50,135 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:50,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 00:34:50,245 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-10-13 00:34:50,246 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:50,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:34:50,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:50,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544269833] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:50,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:50,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-10-13 00:34:50,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616297212] [2021-10-13 00:34:50,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 00:34:50,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:50,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 00:34:50,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:34:50,415 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:50,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:50,450 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-10-13 00:34:50,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 00:34:50,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-13 00:34:50,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:50,452 INFO L225 Difference]: With dead ends: 43 [2021-10-13 00:34:50,452 INFO L226 Difference]: Without dead ends: 42 [2021-10-13 00:34:50,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-10-13 00:34:50,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-13 00:34:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2021-10-13 00:34:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:50,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-10-13 00:34:50,459 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 35 [2021-10-13 00:34:50,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:50,459 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-10-13 00:34:50,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:50,460 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-10-13 00:34:50,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-13 00:34:50,461 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:50,461 INFO L512 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1] [2021-10-13 00:34:50,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:50,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-13 00:34:50,675 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:50,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:50,675 INFO L82 PathProgramCache]: Analyzing trace with hash 915144177, now seen corresponding path program 7 times [2021-10-13 00:34:50,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:50,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749942089] [2021-10-13 00:34:50,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:50,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:50,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:50,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749942089] [2021-10-13 00:34:50,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749942089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:50,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560366445] [2021-10-13 00:34:50,780 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:34:50,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:50,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:50,792 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:50,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 00:34:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:50,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:34:50,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:51,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560366445] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:51,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:51,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-10-13 00:34:51,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496044169] [2021-10-13 00:34:51,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:34:51,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:34:51,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:34:51,065 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:51,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:51,099 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-10-13 00:34:51,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:34:51,100 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-13 00:34:51,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:51,101 INFO L225 Difference]: With dead ends: 48 [2021-10-13 00:34:51,101 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 00:34:51,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.0ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:34:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 00:34:51,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2021-10-13 00:34:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 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) [2021-10-13 00:34:51,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-10-13 00:34:51,108 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 40 [2021-10-13 00:34:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:51,108 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-10-13 00:34:51,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:51,109 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-10-13 00:34:51,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 00:34:51,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:51,110 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1] [2021-10-13 00:34:51,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:51,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-13 00:34:51,331 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:51,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:51,331 INFO L82 PathProgramCache]: Analyzing trace with hash -2138891355, now seen corresponding path program 8 times [2021-10-13 00:34:51,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:51,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612027198] [2021-10-13 00:34:51,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:51,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:51,435 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:51,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:51,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612027198] [2021-10-13 00:34:51,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612027198] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:51,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2060316855] [2021-10-13 00:34:51,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:34:51,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:51,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:51,437 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:51,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 00:34:51,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:34:51,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:51,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:34:51,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:51,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2060316855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:51,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:51,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-10-13 00:34:51,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919372694] [2021-10-13 00:34:51,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 00:34:51,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:51,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:34:51,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:34:51,713 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:51,756 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-10-13 00:34:51,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:34:51,757 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-10-13 00:34:51,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:51,760 INFO L225 Difference]: With dead ends: 53 [2021-10-13 00:34:51,760 INFO L226 Difference]: Without dead ends: 52 [2021-10-13 00:34:51,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.3ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:34:51,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-13 00:34:51,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-10-13 00:34:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:51,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-10-13 00:34:51,775 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 45 [2021-10-13 00:34:51,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:51,775 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-10-13 00:34:51,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:51,775 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-10-13 00:34:51,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-13 00:34:51,776 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:51,776 INFO L512 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1] [2021-10-13 00:34:51,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:51,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 00:34:52,000 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:52,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:52,000 INFO L82 PathProgramCache]: Analyzing trace with hash -2002882959, now seen corresponding path program 9 times [2021-10-13 00:34:52,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:52,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541789580] [2021-10-13 00:34:52,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:52,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:52,137 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:52,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:52,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541789580] [2021-10-13 00:34:52,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541789580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:52,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122666146] [2021-10-13 00:34:52,138 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:34:52,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:52,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:52,139 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:52,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 00:34:52,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-10-13 00:34:52,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:52,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:34:52,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:52,505 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:52,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122666146] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:52,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:52,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-10-13 00:34:52,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440697731] [2021-10-13 00:34:52,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:34:52,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:52,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:34:52,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:34:52,507 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:52,548 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-10-13 00:34:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 00:34:52,548 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-10-13 00:34:52,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:52,551 INFO L225 Difference]: With dead ends: 58 [2021-10-13 00:34:52,552 INFO L226 Difference]: Without dead ends: 57 [2021-10-13 00:34:52,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.8ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:34:52,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-13 00:34:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-10-13 00:34:52,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-10-13 00:34:52,562 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 50 [2021-10-13 00:34:52,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:52,562 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-10-13 00:34:52,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:52,562 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-10-13 00:34:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 00:34:52,563 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:52,563 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-10-13 00:34:52,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:52,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:52,778 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:52,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:52,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 10 times [2021-10-13 00:34:52,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:52,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270430967] [2021-10-13 00:34:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:52,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:52,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:52,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270430967] [2021-10-13 00:34:52,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270430967] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:52,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082771492] [2021-10-13 00:34:52,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:34:52,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:52,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:52,926 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:52,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 00:34:53,085 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:34:53,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:53,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:34:53,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:53,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082771492] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:53,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:53,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-10-13 00:34:53,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493960852] [2021-10-13 00:34:53,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 00:34:53,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:53,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:34:53,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:34:53,294 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:53,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:53,338 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-10-13 00:34:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:34:53,338 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-13 00:34:53,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:53,339 INFO L225 Difference]: With dead ends: 63 [2021-10-13 00:34:53,339 INFO L226 Difference]: Without dead ends: 62 [2021-10-13 00:34:53,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.3ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-10-13 00:34:53,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-13 00:34:53,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-10-13 00:34:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-10-13 00:34:53,351 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 55 [2021-10-13 00:34:53,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:53,352 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-10-13 00:34:53,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-10-13 00:34:53,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-13 00:34:53,358 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:53,359 INFO L512 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1] [2021-10-13 00:34:53,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:53,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:53,574 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:53,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:53,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1824407281, now seen corresponding path program 11 times [2021-10-13 00:34:53,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:53,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729499276] [2021-10-13 00:34:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:53,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:53,717 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:53,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:53,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729499276] [2021-10-13 00:34:53,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729499276] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:53,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141793241] [2021-10-13 00:34:53,719 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:34:53,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:53,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:53,720 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:53,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-13 00:34:53,887 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-10-13 00:34:53,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:53,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 00:34:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:54,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141793241] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:54,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:54,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-10-13 00:34:54,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328131556] [2021-10-13 00:34:54,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-13 00:34:54,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:54,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-13 00:34:54,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:34:54,129 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:54,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:54,188 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-10-13 00:34:54,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:34:54,189 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-10-13 00:34:54,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:54,190 INFO L225 Difference]: With dead ends: 68 [2021-10-13 00:34:54,190 INFO L226 Difference]: Without dead ends: 67 [2021-10-13 00:34:54,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.0ms TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:34:54,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-13 00:34:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-10-13 00:34:54,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:54,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-10-13 00:34:54,216 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 60 [2021-10-13 00:34:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:54,216 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-10-13 00:34:54,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:54,217 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-10-13 00:34:54,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-10-13 00:34:54,220 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:54,220 INFO L512 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1] [2021-10-13 00:34:54,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:54,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 00:34:54,434 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:54,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1150384805, now seen corresponding path program 12 times [2021-10-13 00:34:54,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:54,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214606568] [2021-10-13 00:34:54,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:54,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:54,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:54,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214606568] [2021-10-13 00:34:54,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214606568] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:54,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169370280] [2021-10-13 00:34:54,603 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:34:54,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:54,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:54,608 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:54,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 00:34:54,790 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-10-13 00:34:54,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:54,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 00:34:54,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:55,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169370280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:55,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:55,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-10-13 00:34:55,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998010846] [2021-10-13 00:34:55,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-13 00:34:55,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:55,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-13 00:34:55,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:34:55,017 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:55,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:55,088 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2021-10-13 00:34:55,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-13 00:34:55,088 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-10-13 00:34:55,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:55,089 INFO L225 Difference]: With dead ends: 73 [2021-10-13 00:34:55,089 INFO L226 Difference]: Without dead ends: 72 [2021-10-13 00:34:55,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:34:55,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-13 00:34:55,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-10-13 00:34:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:55,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-10-13 00:34:55,099 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 65 [2021-10-13 00:34:55,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:55,100 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-10-13 00:34:55,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:55,100 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-10-13 00:34:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-10-13 00:34:55,103 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:55,103 INFO L512 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1] [2021-10-13 00:34:55,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 00:34:55,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-13 00:34:55,304 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:55,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:55,304 INFO L82 PathProgramCache]: Analyzing trace with hash 968060785, now seen corresponding path program 13 times [2021-10-13 00:34:55,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:55,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368349436] [2021-10-13 00:34:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:55,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:55,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:55,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:55,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368349436] [2021-10-13 00:34:55,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368349436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:55,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911497791] [2021-10-13 00:34:55,508 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:34:55,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:55,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:55,509 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:55,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 00:34:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:55,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-13 00:34:55,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:55,935 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:55,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911497791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:55,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:55,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-10-13 00:34:55,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205120819] [2021-10-13 00:34:55,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 00:34:55,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:55,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 00:34:55,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-13 00:34:55,938 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:55,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:55,997 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2021-10-13 00:34:55,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 00:34:55,998 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-10-13 00:34:55,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:55,999 INFO L225 Difference]: With dead ends: 78 [2021-10-13 00:34:55,999 INFO L226 Difference]: Without dead ends: 77 [2021-10-13 00:34:56,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 120.6ms TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-10-13 00:34:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-13 00:34:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-10-13 00:34:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2021-10-13 00:34:56,016 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 70 [2021-10-13 00:34:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:56,017 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2021-10-13 00:34:56,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:56,017 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2021-10-13 00:34:56,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-13 00:34:56,018 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:56,018 INFO L512 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-10-13 00:34:56,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:56,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 00:34:56,234 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:56,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:56,235 INFO L82 PathProgramCache]: Analyzing trace with hash 197564965, now seen corresponding path program 14 times [2021-10-13 00:34:56,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:56,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96990236] [2021-10-13 00:34:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:56,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:56,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:56,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96990236] [2021-10-13 00:34:56,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96990236] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:56,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513910214] [2021-10-13 00:34:56,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:34:56,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:56,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:56,430 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:56,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-13 00:34:56,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:34:56,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:56,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:34:56,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:56,899 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:56,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513910214] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:56,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:56,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-10-13 00:34:56,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34060702] [2021-10-13 00:34:56,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-13 00:34:56,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:56,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-13 00:34:56,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:34:56,903 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:56,947 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2021-10-13 00:34:56,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 00:34:56,948 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-10-13 00:34:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:56,949 INFO L225 Difference]: With dead ends: 83 [2021-10-13 00:34:56,949 INFO L226 Difference]: Without dead ends: 82 [2021-10-13 00:34:56,949 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 108.8ms TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-10-13 00:34:56,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-13 00:34:56,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-10-13 00:34:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2021-10-13 00:34:56,954 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 75 [2021-10-13 00:34:56,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:56,954 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2021-10-13 00:34:56,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2021-10-13 00:34:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-13 00:34:56,956 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:56,956 INFO L512 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1] [2021-10-13 00:34:56,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:57,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:57,174 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:57,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:57,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1816526833, now seen corresponding path program 15 times [2021-10-13 00:34:57,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:57,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132144619] [2021-10-13 00:34:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:57,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:57,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:57,390 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:57,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:57,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132144619] [2021-10-13 00:34:57,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132144619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:57,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279140318] [2021-10-13 00:34:57,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:34:57,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:57,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:57,398 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:57,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 00:34:57,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-10-13 00:34:57,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:57,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:34:57,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:57,935 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:57,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279140318] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:57,935 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:57,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-10-13 00:34:57,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909972315] [2021-10-13 00:34:57,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-13 00:34:57,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:57,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-13 00:34:57,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-13 00:34:57,938 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:57,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:57,991 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2021-10-13 00:34:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 00:34:57,991 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-13 00:34:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:57,992 INFO L225 Difference]: With dead ends: 88 [2021-10-13 00:34:57,992 INFO L226 Difference]: Without dead ends: 87 [2021-10-13 00:34:57,993 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 142.0ms TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-10-13 00:34:57,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-13 00:34:57,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-10-13 00:34:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:57,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2021-10-13 00:34:57,997 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 80 [2021-10-13 00:34:57,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:57,997 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2021-10-13 00:34:57,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2021-10-13 00:34:57,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-10-13 00:34:57,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:57,999 INFO L512 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1] [2021-10-13 00:34:58,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:58,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:58,222 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:58,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:58,223 INFO L82 PathProgramCache]: Analyzing trace with hash 951736741, now seen corresponding path program 16 times [2021-10-13 00:34:58,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:58,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608444349] [2021-10-13 00:34:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:58,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:58,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:58,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608444349] [2021-10-13 00:34:58,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608444349] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:58,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592701476] [2021-10-13 00:34:58,439 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:34:58,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:58,440 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:58,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 00:34:58,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:34:58,719 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:58,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 00:34:58,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:34:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:58,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592701476] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:58,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:34:58,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-10-13 00:34:58,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118111245] [2021-10-13 00:34:58,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 00:34:58,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:34:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 00:34:59,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:34:59,001 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:59,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:34:59,047 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-10-13 00:34:59,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 00:34:59,047 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-10-13 00:34:59,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:34:59,048 INFO L225 Difference]: With dead ends: 93 [2021-10-13 00:34:59,048 INFO L226 Difference]: Without dead ends: 92 [2021-10-13 00:34:59,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 137.2ms TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:34:59,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-13 00:34:59,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-10-13 00:34:59,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:59,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2021-10-13 00:34:59,053 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 85 [2021-10-13 00:34:59,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:34:59,054 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2021-10-13 00:34:59,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:34:59,054 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2021-10-13 00:34:59,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-10-13 00:34:59,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:34:59,055 INFO L512 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1] [2021-10-13 00:34:59,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:34:59,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:59,281 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:34:59,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:34:59,282 INFO L82 PathProgramCache]: Analyzing trace with hash 658370673, now seen corresponding path program 17 times [2021-10-13 00:34:59,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:34:59,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343407426] [2021-10-13 00:34:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:34:59,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:34:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:34:59,511 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:34:59,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:34:59,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343407426] [2021-10-13 00:34:59,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343407426] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:34:59,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573544152] [2021-10-13 00:34:59,512 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:34:59,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:34:59,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:34:59,513 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:34:59,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-13 00:34:59,788 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-10-13 00:34:59,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:34:59,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 00:34:59,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:00,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573544152] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:00,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:00,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-10-13 00:35:00,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872796047] [2021-10-13 00:35:00,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 00:35:00,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:00,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 00:35:00,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-13 00:35:00,075 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:00,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:00,128 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-10-13 00:35:00,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 00:35:00,129 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-10-13 00:35:00,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:00,130 INFO L225 Difference]: With dead ends: 98 [2021-10-13 00:35:00,130 INFO L226 Difference]: Without dead ends: 97 [2021-10-13 00:35:00,132 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-10-13 00:35:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-10-13 00:35:00,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-10-13 00:35:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:00,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-10-13 00:35:00,137 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 90 [2021-10-13 00:35:00,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:00,138 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-10-13 00:35:00,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:00,138 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-10-13 00:35:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-10-13 00:35:00,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:00,141 INFO L512 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1] [2021-10-13 00:35:00,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:00,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:00,358 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:00,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:00,359 INFO L82 PathProgramCache]: Analyzing trace with hash 631552293, now seen corresponding path program 18 times [2021-10-13 00:35:00,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:00,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006688212] [2021-10-13 00:35:00,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:00,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:00,608 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:00,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:00,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006688212] [2021-10-13 00:35:00,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006688212] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:00,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959307971] [2021-10-13 00:35:00,609 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:35:00,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:00,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:00,610 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:00,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-13 00:35:00,952 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-10-13 00:35:00,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:00,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-13 00:35:00,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:01,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959307971] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:01,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:01,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-10-13 00:35:01,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622289017] [2021-10-13 00:35:01,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-13 00:35:01,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:01,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-13 00:35:01,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-13 00:35:01,208 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:01,259 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2021-10-13 00:35:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 00:35:01,260 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-10-13 00:35:01,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:01,261 INFO L225 Difference]: With dead ends: 103 [2021-10-13 00:35:01,261 INFO L226 Difference]: Without dead ends: 102 [2021-10-13 00:35:01,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 158.3ms TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-10-13 00:35:01,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-13 00:35:01,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-10-13 00:35:01,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:01,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2021-10-13 00:35:01,271 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 95 [2021-10-13 00:35:01,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:01,271 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2021-10-13 00:35:01,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:01,272 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2021-10-13 00:35:01,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-10-13 00:35:01,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:01,273 INFO L512 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1] [2021-10-13 00:35:01,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:01,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:01,486 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:01,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:01,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1285340943, now seen corresponding path program 19 times [2021-10-13 00:35:01,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:01,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602160559] [2021-10-13 00:35:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:01,487 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:01,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:01,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602160559] [2021-10-13 00:35:01,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602160559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:01,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957541928] [2021-10-13 00:35:01,746 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:35:01,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:01,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:01,747 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:01,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-13 00:35:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:02,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 00:35:02,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:02,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957541928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:02,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:02,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-10-13 00:35:02,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187930522] [2021-10-13 00:35:02,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-13 00:35:02,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:02,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-13 00:35:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-13 00:35:02,551 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:02,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:02,613 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2021-10-13 00:35:02,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-13 00:35:02,614 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-10-13 00:35:02,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:02,615 INFO L225 Difference]: With dead ends: 108 [2021-10-13 00:35:02,615 INFO L226 Difference]: Without dead ends: 107 [2021-10-13 00:35:02,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 179.5ms TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-10-13 00:35:02,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-13 00:35:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-10-13 00:35:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-10-13 00:35:02,620 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 100 [2021-10-13 00:35:02,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:02,620 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-10-13 00:35:02,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:02,621 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-10-13 00:35:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-13 00:35:02,622 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:02,622 INFO L512 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1] [2021-10-13 00:35:02,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:02,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:02,850 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:02,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:02,851 INFO L82 PathProgramCache]: Analyzing trace with hash -960644955, now seen corresponding path program 20 times [2021-10-13 00:35:02,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:02,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686602277] [2021-10-13 00:35:02,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:02,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:02,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:03,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:03,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686602277] [2021-10-13 00:35:03,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686602277] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:03,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421667925] [2021-10-13 00:35:03,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:35:03,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:03,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:03,186 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:03,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-13 00:35:03,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:35:03,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:03,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-13 00:35:03,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:03,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421667925] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:03,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:03,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-10-13 00:35:03,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209340488] [2021-10-13 00:35:03,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-13 00:35:03,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:03,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-13 00:35:03,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:35:03,984 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:04,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:04,037 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2021-10-13 00:35:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-13 00:35:04,038 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-10-13 00:35:04,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:04,040 INFO L225 Difference]: With dead ends: 113 [2021-10-13 00:35:04,040 INFO L226 Difference]: Without dead ends: 112 [2021-10-13 00:35:04,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 208.5ms TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:35:04,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-10-13 00:35:04,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2021-10-13 00:35:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:04,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2021-10-13 00:35:04,047 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 105 [2021-10-13 00:35:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:04,047 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2021-10-13 00:35:04,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:04,056 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2021-10-13 00:35:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-10-13 00:35:04,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:04,057 INFO L512 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1] [2021-10-13 00:35:04,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-10-13 00:35:04,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-13 00:35:04,274 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:04,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:04,275 INFO L82 PathProgramCache]: Analyzing trace with hash -8523407, now seen corresponding path program 21 times [2021-10-13 00:35:04,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:04,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439511791] [2021-10-13 00:35:04,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:04,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:04,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:04,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439511791] [2021-10-13 00:35:04,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439511791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:04,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522423690] [2021-10-13 00:35:04,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:35:04,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:04,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:04,606 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:04,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-13 00:35:05,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-10-13 00:35:05,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:05,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 00:35:05,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:05,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522423690] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:05,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:05,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-10-13 00:35:05,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448659809] [2021-10-13 00:35:05,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-10-13 00:35:05,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:05,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-10-13 00:35:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-13 00:35:05,348 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:05,407 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2021-10-13 00:35:05,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-13 00:35:05,407 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-10-13 00:35:05,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:05,408 INFO L225 Difference]: With dead ends: 118 [2021-10-13 00:35:05,408 INFO L226 Difference]: Without dead ends: 117 [2021-10-13 00:35:05,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 215.6ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-10-13 00:35:05,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-10-13 00:35:05,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-10-13 00:35:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-10-13 00:35:05,415 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 110 [2021-10-13 00:35:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:05,416 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-10-13 00:35:05,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-10-13 00:35:05,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-10-13 00:35:05,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:05,417 INFO L512 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-10-13 00:35:05,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:05,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-10-13 00:35:05,639 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:05,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:05,639 INFO L82 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 22 times [2021-10-13 00:35:05,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:05,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676364115] [2021-10-13 00:35:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:05,640 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:05,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:05,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676364115] [2021-10-13 00:35:05,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676364115] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:05,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814440015] [2021-10-13 00:35:05,935 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:35:05,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:05,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:05,944 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:05,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-13 00:35:06,371 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:35:06,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:06,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-13 00:35:06,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:06,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:06,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814440015] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:06,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:06,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-10-13 00:35:06,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118014093] [2021-10-13 00:35:06,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 00:35:06,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:06,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 00:35:06,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-13 00:35:06,746 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:06,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:06,836 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2021-10-13 00:35:06,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-13 00:35:06,837 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-10-13 00:35:06,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:06,839 INFO L225 Difference]: With dead ends: 123 [2021-10-13 00:35:06,839 INFO L226 Difference]: Without dead ends: 122 [2021-10-13 00:35:06,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 209.5ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-10-13 00:35:06,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-13 00:35:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2021-10-13 00:35:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:06,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2021-10-13 00:35:06,845 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 115 [2021-10-13 00:35:06,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:06,845 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2021-10-13 00:35:06,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:06,846 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2021-10-13 00:35:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-10-13 00:35:06,847 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:06,847 INFO L512 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1] [2021-10-13 00:35:06,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:07,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-10-13 00:35:07,062 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:07,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:07,062 INFO L82 PathProgramCache]: Analyzing trace with hash 542507505, now seen corresponding path program 23 times [2021-10-13 00:35:07,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:07,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472768698] [2021-10-13 00:35:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:07,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:07,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:07,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472768698] [2021-10-13 00:35:07,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472768698] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:07,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708463880] [2021-10-13 00:35:07,395 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:35:07,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:07,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:07,396 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:07,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-13 00:35:07,868 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-10-13 00:35:07,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:07,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-13 00:35:07,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:08,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:08,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708463880] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:08,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:08,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-10-13 00:35:08,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027627803] [2021-10-13 00:35:08,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-13 00:35:08,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:08,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-13 00:35:08,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-13 00:35:08,227 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:08,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:08,298 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-10-13 00:35:08,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-13 00:35:08,298 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-10-13 00:35:08,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:08,300 INFO L225 Difference]: With dead ends: 128 [2021-10-13 00:35:08,300 INFO L226 Difference]: Without dead ends: 127 [2021-10-13 00:35:08,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 247.4ms TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-10-13 00:35:08,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-13 00:35:08,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-10-13 00:35:08,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2021-10-13 00:35:08,305 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 120 [2021-10-13 00:35:08,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:08,306 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2021-10-13 00:35:08,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:08,306 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2021-10-13 00:35:08,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-10-13 00:35:08,308 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:08,308 INFO L512 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1] [2021-10-13 00:35:08,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:08,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-13 00:35:08,522 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:08,523 INFO L82 PathProgramCache]: Analyzing trace with hash -128215131, now seen corresponding path program 24 times [2021-10-13 00:35:08,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:08,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266017516] [2021-10-13 00:35:08,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:08,523 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:08,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:08,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:08,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266017516] [2021-10-13 00:35:08,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266017516] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:08,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871004296] [2021-10-13 00:35:08,865 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:35:08,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:08,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:08,866 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:08,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-13 00:35:09,388 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-10-13 00:35:09,389 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:09,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-13 00:35:09,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:09,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871004296] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:09,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:09,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-10-13 00:35:09,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558202796] [2021-10-13 00:35:09,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-13 00:35:09,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-13 00:35:09,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:35:09,699 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:09,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:09,766 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2021-10-13 00:35:09,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 00:35:09,767 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-10-13 00:35:09,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:09,768 INFO L225 Difference]: With dead ends: 133 [2021-10-13 00:35:09,768 INFO L226 Difference]: Without dead ends: 132 [2021-10-13 00:35:09,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 234.1ms TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-10-13 00:35:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-13 00:35:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2021-10-13 00:35:09,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:09,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2021-10-13 00:35:09,776 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 125 [2021-10-13 00:35:09,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:09,776 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2021-10-13 00:35:09,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2021-10-13 00:35:09,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-10-13 00:35:09,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:09,778 INFO L512 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 1, 1, 1, 1] [2021-10-13 00:35:09,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:09,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:09,994 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:09,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:09,995 INFO L82 PathProgramCache]: Analyzing trace with hash -793546127, now seen corresponding path program 25 times [2021-10-13 00:35:09,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:09,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77546819] [2021-10-13 00:35:09,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:09,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:10,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:10,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:10,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77546819] [2021-10-13 00:35:10,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77546819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:10,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099430683] [2021-10-13 00:35:10,385 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:35:10,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:10,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:10,390 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:10,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 00:35:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:10,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-13 00:35:10,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:11,292 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:11,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099430683] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:11,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:11,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-10-13 00:35:11,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254808437] [2021-10-13 00:35:11,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-13 00:35:11,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:11,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-13 00:35:11,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-13 00:35:11,295 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:11,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:11,389 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2021-10-13 00:35:11,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 00:35:11,389 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-10-13 00:35:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:11,391 INFO L225 Difference]: With dead ends: 138 [2021-10-13 00:35:11,391 INFO L226 Difference]: Without dead ends: 137 [2021-10-13 00:35:11,392 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 303.1ms TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-10-13 00:35:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-13 00:35:11,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2021-10-13 00:35:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2021-10-13 00:35:11,398 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 130 [2021-10-13 00:35:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:11,399 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2021-10-13 00:35:11,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2021-10-13 00:35:11,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-13 00:35:11,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:11,401 INFO L512 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 1, 1, 1, 1] [2021-10-13 00:35:11,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:11,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:11,626 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:11,627 INFO L82 PathProgramCache]: Analyzing trace with hash -212830427, now seen corresponding path program 26 times [2021-10-13 00:35:11,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:11,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798372887] [2021-10-13 00:35:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:11,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:12,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:12,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:12,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798372887] [2021-10-13 00:35:12,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798372887] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:12,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157287774] [2021-10-13 00:35:12,062 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:35:12,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:12,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:12,063 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:12,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-13 00:35:12,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:35:12,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:12,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 00:35:12,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:13,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:13,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157287774] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:13,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:13,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-10-13 00:35:13,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672279050] [2021-10-13 00:35:13,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-10-13 00:35:13,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:13,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-10-13 00:35:13,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-13 00:35:13,090 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:13,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:13,178 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2021-10-13 00:35:13,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 00:35:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-10-13 00:35:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:13,180 INFO L225 Difference]: With dead ends: 143 [2021-10-13 00:35:13,180 INFO L226 Difference]: Without dead ends: 142 [2021-10-13 00:35:13,181 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 334.8ms TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-10-13 00:35:13,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-13 00:35:13,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-10-13 00:35:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 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) [2021-10-13 00:35:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-10-13 00:35:13,187 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 135 [2021-10-13 00:35:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:13,187 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-10-13 00:35:13,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-10-13 00:35:13,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-10-13 00:35:13,188 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:13,189 INFO L512 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 1, 1, 1, 1] [2021-10-13 00:35:13,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:13,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:13,411 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:13,411 INFO L82 PathProgramCache]: Analyzing trace with hash -245480719, now seen corresponding path program 27 times [2021-10-13 00:35:13,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:13,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458117370] [2021-10-13 00:35:13,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:13,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:13,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:13,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458117370] [2021-10-13 00:35:13,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458117370] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:13,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106689314] [2021-10-13 00:35:13,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:35:13,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:13,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:13,868 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:13,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-13 00:35:14,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-10-13 00:35:14,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:14,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 29 conjunts are in the unsatisfiable core [2021-10-13 00:35:14,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:14,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106689314] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:14,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:14,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-10-13 00:35:14,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909112976] [2021-10-13 00:35:14,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-13 00:35:14,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:14,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-13 00:35:14,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-13 00:35:14,970 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:15,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:15,052 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2021-10-13 00:35:15,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 00:35:15,052 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-10-13 00:35:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:15,053 INFO L225 Difference]: With dead ends: 148 [2021-10-13 00:35:15,053 INFO L226 Difference]: Without dead ends: 147 [2021-10-13 00:35:15,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 349.5ms TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-10-13 00:35:15,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-13 00:35:15,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-10-13 00:35:15,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 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) [2021-10-13 00:35:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2021-10-13 00:35:15,058 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 140 [2021-10-13 00:35:15,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:15,059 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2021-10-13 00:35:15,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:15,059 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2021-10-13 00:35:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-10-13 00:35:15,060 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:15,061 INFO L512 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 1, 1, 1, 1] [2021-10-13 00:35:15,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-13 00:35:15,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:15,282 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:15,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:15,283 INFO L82 PathProgramCache]: Analyzing trace with hash 2001991333, now seen corresponding path program 28 times [2021-10-13 00:35:15,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:15,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552510687] [2021-10-13 00:35:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:15,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:15,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:15,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:15,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552510687] [2021-10-13 00:35:15,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552510687] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:15,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488080127] [2021-10-13 00:35:15,821 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:35:15,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:15,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:15,823 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:15,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-13 00:35:16,665 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:35:16,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:16,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-13 00:35:16,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:17,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:17,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488080127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:17,085 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:17,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-10-13 00:35:17,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348378328] [2021-10-13 00:35:17,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-13 00:35:17,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:17,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-13 00:35:17,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-13 00:35:17,087 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:17,168 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2021-10-13 00:35:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-13 00:35:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-10-13 00:35:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:17,170 INFO L225 Difference]: With dead ends: 153 [2021-10-13 00:35:17,170 INFO L226 Difference]: Without dead ends: 152 [2021-10-13 00:35:17,171 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 400.9ms TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-10-13 00:35:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-13 00:35:17,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2021-10-13 00:35:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2021-10-13 00:35:17,176 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 145 [2021-10-13 00:35:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:17,176 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2021-10-13 00:35:17,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2021-10-13 00:35:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-10-13 00:35:17,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:17,178 INFO L512 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 1, 1, 1, 1] [2021-10-13 00:35:17,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:17,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-13 00:35:17,402 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash 152990577, now seen corresponding path program 29 times [2021-10-13 00:35:17,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:17,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466286557] [2021-10-13 00:35:17,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:17,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:17,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:17,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466286557] [2021-10-13 00:35:17,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466286557] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:17,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021558832] [2021-10-13 00:35:17,923 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:35:17,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:17,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:17,925 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:17,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 00:35:18,628 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-10-13 00:35:18,629 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:18,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 00:35:18,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:18,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021558832] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:18,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:18,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-10-13 00:35:18,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238187659] [2021-10-13 00:35:18,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-13 00:35:18,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:18,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-13 00:35:18,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-13 00:35:18,980 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:19,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:19,072 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2021-10-13 00:35:19,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 00:35:19,072 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-10-13 00:35:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:19,073 INFO L225 Difference]: With dead ends: 158 [2021-10-13 00:35:19,074 INFO L226 Difference]: Without dead ends: 157 [2021-10-13 00:35:19,074 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 377.4ms TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-10-13 00:35:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-13 00:35:19,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2021-10-13 00:35:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2021-10-13 00:35:19,080 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 150 [2021-10-13 00:35:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:19,080 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2021-10-13 00:35:19,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2021-10-13 00:35:19,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-13 00:35:19,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:19,082 INFO L512 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-10-13 00:35:19,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:19,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-10-13 00:35:19,298 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:19,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:19,299 INFO L82 PathProgramCache]: Analyzing trace with hash -90302939, now seen corresponding path program 30 times [2021-10-13 00:35:19,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:19,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604303084] [2021-10-13 00:35:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:19,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:19,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:19,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:19,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:19,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604303084] [2021-10-13 00:35:19,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604303084] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:19,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419832411] [2021-10-13 00:35:19,779 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:35:19,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:19,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:19,780 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:19,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-13 00:35:20,543 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-10-13 00:35:20,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:20,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 00:35:20,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:20,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419832411] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:20,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:20,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-10-13 00:35:20,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668354896] [2021-10-13 00:35:20,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-13 00:35:20,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:20,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-13 00:35:20,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 00:35:20,970 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:21,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:21,069 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2021-10-13 00:35:21,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-13 00:35:21,070 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-10-13 00:35:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:21,071 INFO L225 Difference]: With dead ends: 163 [2021-10-13 00:35:21,071 INFO L226 Difference]: Without dead ends: 162 [2021-10-13 00:35:21,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 378.6ms TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 00:35:21,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-13 00:35:21,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2021-10-13 00:35:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:21,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2021-10-13 00:35:21,078 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 155 [2021-10-13 00:35:21,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:21,079 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2021-10-13 00:35:21,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2021-10-13 00:35:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-10-13 00:35:21,080 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:21,080 INFO L512 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 1, 1, 1, 1] [2021-10-13 00:35:21,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:21,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-13 00:35:21,306 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:21,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:21,306 INFO L82 PathProgramCache]: Analyzing trace with hash -994311183, now seen corresponding path program 31 times [2021-10-13 00:35:21,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:21,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739778939] [2021-10-13 00:35:21,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:21,307 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:21,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:21,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:21,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739778939] [2021-10-13 00:35:21,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739778939] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:21,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266401184] [2021-10-13 00:35:21,854 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:35:21,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:21,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:21,858 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:21,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-13 00:35:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:22,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-13 00:35:22,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:23,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:23,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266401184] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:23,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:23,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-10-13 00:35:23,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734675126] [2021-10-13 00:35:23,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-13 00:35:23,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:23,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-13 00:35:23,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 00:35:23,060 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:23,189 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-10-13 00:35:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 00:35:23,190 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-10-13 00:35:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:23,192 INFO L225 Difference]: With dead ends: 168 [2021-10-13 00:35:23,192 INFO L226 Difference]: Without dead ends: 167 [2021-10-13 00:35:23,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 424.7ms TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-10-13 00:35:23,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-10-13 00:35:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-10-13 00:35:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-10-13 00:35:23,199 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 160 [2021-10-13 00:35:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:23,200 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-10-13 00:35:23,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-10-13 00:35:23,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-10-13 00:35:23,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:23,202 INFO L512 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 1, 1, 1, 1] [2021-10-13 00:35:23,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:23,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-10-13 00:35:23,418 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:23,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:23,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1922640475, now seen corresponding path program 32 times [2021-10-13 00:35:23,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:23,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720786413] [2021-10-13 00:35:23,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:23,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:24,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:24,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:24,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720786413] [2021-10-13 00:35:24,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720786413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:24,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009225274] [2021-10-13 00:35:24,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:35:24,058 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:24,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:24,062 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:24,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-13 00:35:24,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:35:24,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:24,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 00:35:24,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:25,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:25,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009225274] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:25,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:25,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-10-13 00:35:25,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248710135] [2021-10-13 00:35:25,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-13 00:35:25,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-13 00:35:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 00:35:25,336 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:25,421 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2021-10-13 00:35:25,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 00:35:25,422 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-10-13 00:35:25,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:25,423 INFO L225 Difference]: With dead ends: 173 [2021-10-13 00:35:25,423 INFO L226 Difference]: Without dead ends: 172 [2021-10-13 00:35:25,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 466.3ms TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 00:35:25,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-13 00:35:25,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2021-10-13 00:35:25,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2021-10-13 00:35:25,430 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 165 [2021-10-13 00:35:25,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:25,431 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2021-10-13 00:35:25,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:25,431 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2021-10-13 00:35:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-13 00:35:25,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:25,432 INFO L512 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 1, 1, 1, 1] [2021-10-13 00:35:25,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:25,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:25,646 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:25,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:25,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1996420209, now seen corresponding path program 33 times [2021-10-13 00:35:25,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:25,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190505703] [2021-10-13 00:35:25,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:25,647 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:26,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:26,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190505703] [2021-10-13 00:35:26,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190505703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:26,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719285190] [2021-10-13 00:35:26,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:35:26,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:26,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:26,390 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:26,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-13 00:35:27,542 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-10-13 00:35:27,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:27,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-13 00:35:27,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:27,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719285190] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:27,981 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:27,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-10-13 00:35:27,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305284476] [2021-10-13 00:35:27,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-13 00:35:27,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:27,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-13 00:35:27,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 00:35:27,983 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:28,065 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2021-10-13 00:35:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 00:35:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-10-13 00:35:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:28,066 INFO L225 Difference]: With dead ends: 178 [2021-10-13 00:35:28,066 INFO L226 Difference]: Without dead ends: 177 [2021-10-13 00:35:28,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 559.6ms TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 00:35:28,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-10-13 00:35:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2021-10-13 00:35:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 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) [2021-10-13 00:35:28,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-10-13 00:35:28,073 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 170 [2021-10-13 00:35:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:28,073 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-10-13 00:35:28,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:28,074 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-10-13 00:35:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-10-13 00:35:28,075 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:28,075 INFO L512 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 1, 1, 1, 1] [2021-10-13 00:35:28,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:28,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:28,282 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:28,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1508259109, now seen corresponding path program 34 times [2021-10-13 00:35:28,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:28,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945990652] [2021-10-13 00:35:28,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:28,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:29,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:29,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945990652] [2021-10-13 00:35:29,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945990652] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:29,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107988610] [2021-10-13 00:35:29,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:35:29,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:29,021 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:29,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-10-13 00:35:29,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:35:29,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:30,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2021-10-13 00:35:30,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:30,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107988610] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:30,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:30,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-10-13 00:35:30,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893270229] [2021-10-13 00:35:30,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-13 00:35:30,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-13 00:35:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 00:35:30,487 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:30,593 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2021-10-13 00:35:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 00:35:30,594 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-10-13 00:35:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:30,595 INFO L225 Difference]: With dead ends: 183 [2021-10-13 00:35:30,595 INFO L226 Difference]: Without dead ends: 182 [2021-10-13 00:35:30,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 541.0ms TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-10-13 00:35:30,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-10-13 00:35:30,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2021-10-13 00:35:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 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) [2021-10-13 00:35:30,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2021-10-13 00:35:30,601 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 175 [2021-10-13 00:35:30,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:30,602 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2021-10-13 00:35:30,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2021-10-13 00:35:30,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-10-13 00:35:30,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:30,604 INFO L512 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 1, 1, 1, 1] [2021-10-13 00:35:30,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-10-13 00:35:30,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-10-13 00:35:30,818 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:30,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:30,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1733344015, now seen corresponding path program 35 times [2021-10-13 00:35:30,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:30,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989478992] [2021-10-13 00:35:30,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:30,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:31,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:31,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989478992] [2021-10-13 00:35:31,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989478992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:31,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797181183] [2021-10-13 00:35:31,472 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:35:31,472 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:31,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:31,473 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-10-13 00:35:32,524 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-10-13 00:35:32,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:32,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 37 conjunts are in the unsatisfiable core [2021-10-13 00:35:32,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:33,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797181183] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:33,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:33,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-10-13 00:35:33,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776585945] [2021-10-13 00:35:33,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-10-13 00:35:33,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-10-13 00:35:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 00:35:33,034 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:33,135 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2021-10-13 00:35:33,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 00:35:33,136 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-10-13 00:35:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:33,137 INFO L225 Difference]: With dead ends: 188 [2021-10-13 00:35:33,137 INFO L226 Difference]: Without dead ends: 187 [2021-10-13 00:35:33,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 511.4ms TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-10-13 00:35:33,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-13 00:35:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-10-13 00:35:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-10-13 00:35:33,144 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 180 [2021-10-13 00:35:33,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:33,145 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-10-13 00:35:33,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:33,145 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-10-13 00:35:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-10-13 00:35:33,147 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:33,147 INFO L512 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 1, 1, 1, 1] [2021-10-13 00:35:33,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:33,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-10-13 00:35:33,374 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:33,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:33,375 INFO L82 PathProgramCache]: Analyzing trace with hash 609498277, now seen corresponding path program 36 times [2021-10-13 00:35:33,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:33,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509869495] [2021-10-13 00:35:33,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:33,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:34,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:34,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509869495] [2021-10-13 00:35:34,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509869495] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:34,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001929601] [2021-10-13 00:35:34,127 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:35:34,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:34,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:34,128 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:34,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-10-13 00:35:35,487 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-10-13 00:35:35,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:35,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-13 00:35:35,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:35,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:35,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001929601] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:35,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:35,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-10-13 00:35:35,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382290726] [2021-10-13 00:35:35,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-10-13 00:35:35,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:35,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-10-13 00:35:35,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 00:35:35,984 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:36,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:36,073 INFO L93 Difference]: Finished difference Result 193 states and 193 transitions. [2021-10-13 00:35:36,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-13 00:35:36,073 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-10-13 00:35:36,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:36,074 INFO L225 Difference]: With dead ends: 193 [2021-10-13 00:35:36,075 INFO L226 Difference]: Without dead ends: 192 [2021-10-13 00:35:36,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 612.4ms TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-10-13 00:35:36,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-13 00:35:36,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2021-10-13 00:35:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 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) [2021-10-13 00:35:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2021-10-13 00:35:36,081 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 185 [2021-10-13 00:35:36,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:36,081 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2021-10-13 00:35:36,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2021-10-13 00:35:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-10-13 00:35:36,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:36,083 INFO L512 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 1, 1, 1, 1] [2021-10-13 00:35:36,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:36,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:36,298 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:36,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:36,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1217721713, now seen corresponding path program 37 times [2021-10-13 00:35:36,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:36,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674767747] [2021-10-13 00:35:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:36,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:37,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:37,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674767747] [2021-10-13 00:35:37,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674767747] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:37,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841754874] [2021-10-13 00:35:37,058 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:35:37,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:37,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:37,062 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:37,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-13 00:35:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:38,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-13 00:35:38,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:38,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841754874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:38,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:38,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-10-13 00:35:38,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911043431] [2021-10-13 00:35:38,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-10-13 00:35:38,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-10-13 00:35:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 00:35:38,774 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:38,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:38,891 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-10-13 00:35:38,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-13 00:35:38,892 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-10-13 00:35:38,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:38,893 INFO L225 Difference]: With dead ends: 198 [2021-10-13 00:35:38,893 INFO L226 Difference]: Without dead ends: 197 [2021-10-13 00:35:38,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 608.7ms TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-10-13 00:35:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-10-13 00:35:38,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2021-10-13 00:35:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:38,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2021-10-13 00:35:38,900 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 190 [2021-10-13 00:35:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:38,900 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2021-10-13 00:35:38,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2021-10-13 00:35:38,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-10-13 00:35:38,902 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:38,902 INFO L512 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 1, 1, 1, 1] [2021-10-13 00:35:38,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-10-13 00:35:39,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-10-13 00:35:39,117 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash -890711003, now seen corresponding path program 38 times [2021-10-13 00:35:39,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:39,118 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350089587] [2021-10-13 00:35:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:39,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:39,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:39,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:39,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350089587] [2021-10-13 00:35:39,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350089587] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:39,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068607250] [2021-10-13 00:35:39,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:35:39,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:39,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:39,894 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:39,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-13 00:35:41,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:35:41,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:41,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 40 conjunts are in the unsatisfiable core [2021-10-13 00:35:41,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:41,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068607250] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:41,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:41,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-10-13 00:35:41,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706062897] [2021-10-13 00:35:41,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-13 00:35:41,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:41,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-13 00:35:41,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 00:35:41,717 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:41,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:41,848 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2021-10-13 00:35:41,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-13 00:35:41,848 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-10-13 00:35:41,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:41,850 INFO L225 Difference]: With dead ends: 203 [2021-10-13 00:35:41,850 INFO L226 Difference]: Without dead ends: 202 [2021-10-13 00:35:41,852 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 640.9ms TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 00:35:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-13 00:35:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2021-10-13 00:35:41,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2021-10-13 00:35:41,860 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 195 [2021-10-13 00:35:41,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:41,863 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2021-10-13 00:35:41,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:41,863 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2021-10-13 00:35:41,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-13 00:35:41,865 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:41,865 INFO L512 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 1, 1, 1, 1] [2021-10-13 00:35:41,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:42,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-10-13 00:35:42,078 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:42,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:42,079 INFO L82 PathProgramCache]: Analyzing trace with hash -881326607, now seen corresponding path program 39 times [2021-10-13 00:35:42,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:42,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080744973] [2021-10-13 00:35:42,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:42,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:42,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:42,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080744973] [2021-10-13 00:35:42,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080744973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:42,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601813846] [2021-10-13 00:35:42,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:35:42,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:42,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:42,913 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:42,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-13 00:35:44,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-10-13 00:35:44,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:44,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 41 conjunts are in the unsatisfiable core [2021-10-13 00:35:44,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:44,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601813846] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:44,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:44,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-10-13 00:35:44,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771426621] [2021-10-13 00:35:44,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-10-13 00:35:44,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-10-13 00:35:44,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 00:35:44,672 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:44,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:44,805 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2021-10-13 00:35:44,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-13 00:35:44,805 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-10-13 00:35:44,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:44,807 INFO L225 Difference]: With dead ends: 208 [2021-10-13 00:35:44,807 INFO L226 Difference]: Without dead ends: 207 [2021-10-13 00:35:44,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 695.4ms TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-10-13 00:35:44,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-10-13 00:35:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2021-10-13 00:35:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2021-10-13 00:35:44,814 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 200 [2021-10-13 00:35:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:44,815 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2021-10-13 00:35:44,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:44,815 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2021-10-13 00:35:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-10-13 00:35:44,816 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:44,816 INFO L512 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 1, 1, 1, 1] [2021-10-13 00:35:44,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:45,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:45,038 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:45,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:45,039 INFO L82 PathProgramCache]: Analyzing trace with hash -975432795, now seen corresponding path program 40 times [2021-10-13 00:35:45,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:45,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879711935] [2021-10-13 00:35:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:45,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:45,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:45,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879711935] [2021-10-13 00:35:45,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879711935] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:45,926 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324011572] [2021-10-13 00:35:45,926 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:35:45,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:45,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:45,928 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:45,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-10-13 00:35:47,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:35:47,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:47,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 42 conjunts are in the unsatisfiable core [2021-10-13 00:35:47,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:47,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324011572] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:47,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:47,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-10-13 00:35:47,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303510620] [2021-10-13 00:35:47,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-13 00:35:47,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:47,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-13 00:35:47,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 00:35:47,757 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:47,897 INFO L93 Difference]: Finished difference Result 213 states and 213 transitions. [2021-10-13 00:35:47,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-13 00:35:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2021-10-13 00:35:47,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:47,899 INFO L225 Difference]: With dead ends: 213 [2021-10-13 00:35:47,899 INFO L226 Difference]: Without dead ends: 212 [2021-10-13 00:35:47,900 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 755.1ms TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 00:35:47,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-13 00:35:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2021-10-13 00:35:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:47,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2021-10-13 00:35:47,907 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 205 [2021-10-13 00:35:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:47,908 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2021-10-13 00:35:47,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:47,908 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2021-10-13 00:35:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-10-13 00:35:47,910 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:47,910 INFO L512 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 1, 1, 1, 1] [2021-10-13 00:35:47,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:48,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2021-10-13 00:35:48,126 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:48,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:48,127 INFO L82 PathProgramCache]: Analyzing trace with hash 203454065, now seen corresponding path program 41 times [2021-10-13 00:35:48,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:48,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911077564] [2021-10-13 00:35:48,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:48,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:48,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:48,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:48,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911077564] [2021-10-13 00:35:48,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911077564] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:48,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740993962] [2021-10-13 00:35:48,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:35:48,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:48,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:48,908 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:48,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-10-13 00:35:50,315 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-10-13 00:35:50,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:50,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-13 00:35:50,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:50,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740993962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:50,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:50,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-10-13 00:35:50,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3386231] [2021-10-13 00:35:50,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-10-13 00:35:50,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:50,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-10-13 00:35:50,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 00:35:50,980 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:51,109 INFO L93 Difference]: Finished difference Result 218 states and 218 transitions. [2021-10-13 00:35:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-10-13 00:35:51,110 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-10-13 00:35:51,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:51,112 INFO L225 Difference]: With dead ends: 218 [2021-10-13 00:35:51,112 INFO L226 Difference]: Without dead ends: 217 [2021-10-13 00:35:51,113 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 626.0ms TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-10-13 00:35:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-10-13 00:35:51,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2021-10-13 00:35:51,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.0046511627906978) internal successors, (216), 215 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:51,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2021-10-13 00:35:51,119 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 210 [2021-10-13 00:35:51,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:51,119 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2021-10-13 00:35:51,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:51,120 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2021-10-13 00:35:51,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-10-13 00:35:51,121 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:51,121 INFO L512 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 1, 1, 1, 1] [2021-10-13 00:35:51,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:51,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:51,346 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:51,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:51,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1486490843, now seen corresponding path program 42 times [2021-10-13 00:35:51,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:51,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609837431] [2021-10-13 00:35:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:51,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:52,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:52,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609837431] [2021-10-13 00:35:52,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609837431] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:52,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118645194] [2021-10-13 00:35:52,152 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:35:52,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:52,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:52,153 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:52,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-10-13 00:35:53,636 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-10-13 00:35:53,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:35:53,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 44 conjunts are in the unsatisfiable core [2021-10-13 00:35:53,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:54,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118645194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:54,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:54,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-10-13 00:35:54,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154040835] [2021-10-13 00:35:54,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-10-13 00:35:54,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-10-13 00:35:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 00:35:54,193 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:54,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:54,287 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2021-10-13 00:35:54,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-13 00:35:54,288 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-10-13 00:35:54,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:54,289 INFO L225 Difference]: With dead ends: 223 [2021-10-13 00:35:54,289 INFO L226 Difference]: Without dead ends: 222 [2021-10-13 00:35:54,290 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 633.5ms TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-10-13 00:35:54,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-10-13 00:35:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2021-10-13 00:35:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.0045454545454546) internal successors, (221), 220 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:54,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 221 transitions. [2021-10-13 00:35:54,297 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 221 transitions. Word has length 215 [2021-10-13 00:35:54,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:54,297 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 221 transitions. [2021-10-13 00:35:54,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:54,298 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 221 transitions. [2021-10-13 00:35:54,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-10-13 00:35:54,299 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:54,299 INFO L512 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 1, 1, 1, 1] [2021-10-13 00:35:54,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-10-13 00:35:54,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:54,518 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:54,518 INFO L82 PathProgramCache]: Analyzing trace with hash 458639089, now seen corresponding path program 43 times [2021-10-13 00:35:54,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:54,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483536566] [2021-10-13 00:35:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:54,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:55,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:55,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483536566] [2021-10-13 00:35:55,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483536566] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:55,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127387660] [2021-10-13 00:35:55,379 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:35:55,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:55,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:55,379 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:55,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-13 00:35:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:56,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-13 00:35:56,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:35:57,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:57,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127387660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:57,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:35:57,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-10-13 00:35:57,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883513109] [2021-10-13 00:35:57,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-13 00:35:57,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:35:57,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-13 00:35:57,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 00:35:57,481 INFO L87 Difference]: Start difference. First operand 221 states and 221 transitions. Second operand has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:57,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:35:57,620 INFO L93 Difference]: Finished difference Result 228 states and 228 transitions. [2021-10-13 00:35:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-13 00:35:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-10-13 00:35:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:35:57,623 INFO L225 Difference]: With dead ends: 228 [2021-10-13 00:35:57,623 INFO L226 Difference]: Without dead ends: 227 [2021-10-13 00:35:57,625 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 695.2ms TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-10-13 00:35:57,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-13 00:35:57,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2021-10-13 00:35:57,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.0044444444444445) internal successors, (226), 225 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:57,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2021-10-13 00:35:57,657 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 220 [2021-10-13 00:35:57,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:35:57,658 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2021-10-13 00:35:57,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:35:57,658 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2021-10-13 00:35:57,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-10-13 00:35:57,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:35:57,660 INFO L512 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 1, 1, 1, 1] [2021-10-13 00:35:57,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:35:57,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-10-13 00:35:57,874 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:35:57,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:35:57,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1682017627, now seen corresponding path program 44 times [2021-10-13 00:35:57,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:35:57,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871561918] [2021-10-13 00:35:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:35:57,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:35:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:35:58,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:35:58,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:35:58,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871561918] [2021-10-13 00:35:58,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871561918] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:35:58,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410818817] [2021-10-13 00:35:58,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:35:58,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:35:58,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:35:58,908 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:35:58,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-10-13 00:36:00,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:36:00,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:00,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 46 conjunts are in the unsatisfiable core [2021-10-13 00:36:00,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:01,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410818817] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:01,369 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:01,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-10-13 00:36:01,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891704975] [2021-10-13 00:36:01,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-10-13 00:36:01,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-10-13 00:36:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 00:36:01,370 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:01,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:01,530 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2021-10-13 00:36:01,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-13 00:36:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-10-13 00:36:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:01,532 INFO L225 Difference]: With dead ends: 233 [2021-10-13 00:36:01,532 INFO L226 Difference]: Without dead ends: 232 [2021-10-13 00:36:01,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 867.6ms TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 00:36:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-13 00:36:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2021-10-13 00:36:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.0043478260869565) internal successors, (231), 230 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 231 transitions. [2021-10-13 00:36:01,541 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 231 transitions. Word has length 225 [2021-10-13 00:36:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:01,541 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 231 transitions. [2021-10-13 00:36:01,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 231 transitions. [2021-10-13 00:36:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-10-13 00:36:01,543 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:01,544 INFO L512 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 1, 1, 1, 1] [2021-10-13 00:36:01,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:01,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-10-13 00:36:01,770 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:01,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1344178319, now seen corresponding path program 45 times [2021-10-13 00:36:01,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:01,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563267619] [2021-10-13 00:36:01,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:01,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:02,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:02,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563267619] [2021-10-13 00:36:02,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563267619] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:02,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716566351] [2021-10-13 00:36:02,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:36:02,990 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:02,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:02,994 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:03,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-10-13 00:36:04,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-10-13 00:36:04,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:04,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 47 conjunts are in the unsatisfiable core [2021-10-13 00:36:04,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:05,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716566351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:05,520 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:05,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-10-13 00:36:05,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115639998] [2021-10-13 00:36:05,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-10-13 00:36:05,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:05,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-10-13 00:36:05,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 00:36:05,521 INFO L87 Difference]: Start difference. First operand 231 states and 231 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:05,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:05,681 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-10-13 00:36:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-13 00:36:05,681 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-10-13 00:36:05,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:05,684 INFO L225 Difference]: With dead ends: 238 [2021-10-13 00:36:05,684 INFO L226 Difference]: Without dead ends: 237 [2021-10-13 00:36:05,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1050.6ms TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 00:36:05,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-10-13 00:36:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-10-13 00:36:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.004255319148936) internal successors, (236), 235 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-10-13 00:36:05,694 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 230 [2021-10-13 00:36:05,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:05,695 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-10-13 00:36:05,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-10-13 00:36:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-10-13 00:36:05,698 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:05,698 INFO L512 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-10-13 00:36:05,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:05,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-10-13 00:36:05,919 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:05,919 INFO L82 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 46 times [2021-10-13 00:36:05,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:05,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836316981] [2021-10-13 00:36:05,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:05,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:06,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:06,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836316981] [2021-10-13 00:36:06,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836316981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:06,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127913923] [2021-10-13 00:36:06,982 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:36:06,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:06,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:06,983 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:06,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-10-13 00:36:08,699 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:36:08,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:08,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-13 00:36:08,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:09,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127913923] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:09,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:09,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-10-13 00:36:09,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138496813] [2021-10-13 00:36:09,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-13 00:36:09,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:09,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-13 00:36:09,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 00:36:09,321 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:09,462 INFO L93 Difference]: Finished difference Result 243 states and 243 transitions. [2021-10-13 00:36:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-13 00:36:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2021-10-13 00:36:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:09,465 INFO L225 Difference]: With dead ends: 243 [2021-10-13 00:36:09,465 INFO L226 Difference]: Without dead ends: 242 [2021-10-13 00:36:09,465 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 836.7ms TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 00:36:09,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-13 00:36:09,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2021-10-13 00:36:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.0041666666666667) internal successors, (241), 240 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2021-10-13 00:36:09,472 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 235 [2021-10-13 00:36:09,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:09,473 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2021-10-13 00:36:09,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2021-10-13 00:36:09,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-10-13 00:36:09,474 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:09,475 INFO L512 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 1, 1, 1, 1] [2021-10-13 00:36:09,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:09,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:09,690 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:09,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1500903439, now seen corresponding path program 47 times [2021-10-13 00:36:09,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:09,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535836342] [2021-10-13 00:36:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:09,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:10,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:10,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535836342] [2021-10-13 00:36:10,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535836342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:10,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300218060] [2021-10-13 00:36:10,663 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:36:10,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:10,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:10,665 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:10,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-10-13 00:36:12,492 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-10-13 00:36:12,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:12,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 49 conjunts are in the unsatisfiable core [2021-10-13 00:36:12,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:13,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300218060] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:13,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:13,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-10-13 00:36:13,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398692550] [2021-10-13 00:36:13,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-13 00:36:13,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-13 00:36:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 00:36:13,120 INFO L87 Difference]: Start difference. First operand 241 states and 241 transitions. Second operand has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:13,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:13,229 INFO L93 Difference]: Finished difference Result 248 states and 248 transitions. [2021-10-13 00:36:13,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-10-13 00:36:13,229 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-10-13 00:36:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:13,231 INFO L225 Difference]: With dead ends: 248 [2021-10-13 00:36:13,231 INFO L226 Difference]: Without dead ends: 247 [2021-10-13 00:36:13,232 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 794.0ms TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 00:36:13,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-13 00:36:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 246. [2021-10-13 00:36:13,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.0040816326530613) internal successors, (246), 245 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2021-10-13 00:36:13,238 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 240 [2021-10-13 00:36:13,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:13,239 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2021-10-13 00:36:13,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2021-10-13 00:36:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-10-13 00:36:13,240 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:13,241 INFO L512 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 1, 1, 1, 1] [2021-10-13 00:36:13,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:13,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-10-13 00:36:13,454 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:13,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:13,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1874547109, now seen corresponding path program 48 times [2021-10-13 00:36:13,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:13,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373227614] [2021-10-13 00:36:13,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:13,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:14,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:14,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:14,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373227614] [2021-10-13 00:36:14,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373227614] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:14,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432089263] [2021-10-13 00:36:14,534 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:36:14,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:14,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:14,535 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:14,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-10-13 00:36:16,440 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-10-13 00:36:16,441 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:16,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 50 conjunts are in the unsatisfiable core [2021-10-13 00:36:16,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:17,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:17,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432089263] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:17,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:17,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-10-13 00:36:17,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958149559] [2021-10-13 00:36:17,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-10-13 00:36:17,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:17,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-10-13 00:36:17,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 00:36:17,082 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:17,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:17,220 INFO L93 Difference]: Finished difference Result 253 states and 253 transitions. [2021-10-13 00:36:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-13 00:36:17,220 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-10-13 00:36:17,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:17,222 INFO L225 Difference]: With dead ends: 253 [2021-10-13 00:36:17,222 INFO L226 Difference]: Without dead ends: 252 [2021-10-13 00:36:17,223 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 923.2ms TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-10-13 00:36:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-13 00:36:17,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2021-10-13 00:36:17,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.004) internal successors, (251), 250 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:17,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2021-10-13 00:36:17,229 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 245 [2021-10-13 00:36:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:17,229 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2021-10-13 00:36:17,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2021-10-13 00:36:17,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-10-13 00:36:17,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:17,231 INFO L512 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 1, 1, 1, 1] [2021-10-13 00:36:17,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2021-10-13 00:36:17,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:17,446 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:17,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:17,446 INFO L82 PathProgramCache]: Analyzing trace with hash -2112358287, now seen corresponding path program 49 times [2021-10-13 00:36:17,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:17,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233637341] [2021-10-13 00:36:17,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:17,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:18,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:18,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233637341] [2021-10-13 00:36:18,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233637341] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:18,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597004781] [2021-10-13 00:36:18,591 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:36:18,591 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:18,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:18,593 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:18,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-10-13 00:36:20,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:20,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 51 conjunts are in the unsatisfiable core [2021-10-13 00:36:20,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:21,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597004781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:21,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:21,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-10-13 00:36:21,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849374549] [2021-10-13 00:36:21,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-10-13 00:36:21,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-10-13 00:36:21,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 00:36:21,058 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:21,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:21,235 INFO L93 Difference]: Finished difference Result 258 states and 258 transitions. [2021-10-13 00:36:21,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-13 00:36:21,235 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-10-13 00:36:21,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:21,237 INFO L225 Difference]: With dead ends: 258 [2021-10-13 00:36:21,237 INFO L226 Difference]: Without dead ends: 257 [2021-10-13 00:36:21,238 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 986.1ms TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 00:36:21,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-10-13 00:36:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2021-10-13 00:36:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.003921568627451) internal successors, (256), 255 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:21,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2021-10-13 00:36:21,245 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 250 [2021-10-13 00:36:21,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:21,246 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2021-10-13 00:36:21,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:21,246 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2021-10-13 00:36:21,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-10-13 00:36:21,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:21,248 INFO L512 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 1, 1, 1, 1] [2021-10-13 00:36:21,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:21,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:21,462 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:21,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:21,463 INFO L82 PathProgramCache]: Analyzing trace with hash 701477157, now seen corresponding path program 50 times [2021-10-13 00:36:21,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:21,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34619404] [2021-10-13 00:36:21,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:21,463 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:22,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:22,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34619404] [2021-10-13 00:36:22,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34619404] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:22,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307373109] [2021-10-13 00:36:22,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:36:22,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:22,510 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:22,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-10-13 00:36:24,506 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:36:24,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:24,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-13 00:36:24,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:25,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307373109] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:25,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:25,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-10-13 00:36:25,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385161233] [2021-10-13 00:36:25,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-10-13 00:36:25,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-10-13 00:36:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 00:36:25,156 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:25,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:25,298 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2021-10-13 00:36:25,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-10-13 00:36:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-10-13 00:36:25,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:25,300 INFO L225 Difference]: With dead ends: 263 [2021-10-13 00:36:25,300 INFO L226 Difference]: Without dead ends: 262 [2021-10-13 00:36:25,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 870.1ms TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-10-13 00:36:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-10-13 00:36:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2021-10-13 00:36:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.0038461538461538) internal successors, (261), 260 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 261 transitions. [2021-10-13 00:36:25,307 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 261 transitions. Word has length 255 [2021-10-13 00:36:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:25,308 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 261 transitions. [2021-10-13 00:36:25,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:25,308 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 261 transitions. [2021-10-13 00:36:25,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-10-13 00:36:25,310 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:25,310 INFO L512 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 1, 1, 1, 1] [2021-10-13 00:36:25,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:25,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2021-10-13 00:36:25,526 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:25,527 INFO L82 PathProgramCache]: Analyzing trace with hash -346863375, now seen corresponding path program 51 times [2021-10-13 00:36:25,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:25,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082034869] [2021-10-13 00:36:25,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:25,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:25,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:26,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:26,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082034869] [2021-10-13 00:36:26,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082034869] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:26,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885160000] [2021-10-13 00:36:26,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:36:26,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:26,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:26,700 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:26,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-10-13 00:36:28,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-10-13 00:36:28,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:28,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 53 conjunts are in the unsatisfiable core [2021-10-13 00:36:28,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:29,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885160000] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:29,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:29,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-10-13 00:36:29,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015494042] [2021-10-13 00:36:29,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-10-13 00:36:29,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:29,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-10-13 00:36:29,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 00:36:29,439 INFO L87 Difference]: Start difference. First operand 261 states and 261 transitions. Second operand has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:29,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:29,563 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2021-10-13 00:36:29,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-13 00:36:29,563 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-10-13 00:36:29,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:29,564 INFO L225 Difference]: With dead ends: 268 [2021-10-13 00:36:29,565 INFO L226 Difference]: Without dead ends: 267 [2021-10-13 00:36:29,565 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1009.9ms TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 00:36:29,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-10-13 00:36:29,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 266. [2021-10-13 00:36:29,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.0037735849056604) internal successors, (266), 265 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2021-10-13 00:36:29,572 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 260 [2021-10-13 00:36:29,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:29,573 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2021-10-13 00:36:29,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:29,573 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2021-10-13 00:36:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-10-13 00:36:29,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:29,576 INFO L512 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 1, 1, 1, 1] [2021-10-13 00:36:29,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:29,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:29,797 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:29,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1416449883, now seen corresponding path program 52 times [2021-10-13 00:36:29,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:29,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216071406] [2021-10-13 00:36:29,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:29,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:31,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:31,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:31,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216071406] [2021-10-13 00:36:31,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216071406] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:31,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889881163] [2021-10-13 00:36:31,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:36:31,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:31,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:31,023 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:31,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-13 00:36:33,140 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:36:33,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:33,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 54 conjunts are in the unsatisfiable core [2021-10-13 00:36:33,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:33,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:33,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889881163] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:33,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:33,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-10-13 00:36:33,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932441235] [2021-10-13 00:36:33,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-10-13 00:36:33,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:33,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-10-13 00:36:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 00:36:33,833 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:33,966 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2021-10-13 00:36:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-13 00:36:33,967 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-10-13 00:36:33,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:33,968 INFO L225 Difference]: With dead ends: 273 [2021-10-13 00:36:33,969 INFO L226 Difference]: Without dead ends: 272 [2021-10-13 00:36:33,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1062.9ms TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 00:36:33,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-13 00:36:33,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-10-13 00:36:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.0037037037037038) internal successors, (271), 270 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:33,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2021-10-13 00:36:33,977 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 265 [2021-10-13 00:36:33,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:33,977 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2021-10-13 00:36:33,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2021-10-13 00:36:33,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-10-13 00:36:33,980 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:33,980 INFO L512 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 1, 1, 1, 1] [2021-10-13 00:36:34,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:34,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-10-13 00:36:34,202 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:34,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:34,203 INFO L82 PathProgramCache]: Analyzing trace with hash 822344049, now seen corresponding path program 53 times [2021-10-13 00:36:34,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:34,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42356802] [2021-10-13 00:36:34,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:34,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:35,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:35,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42356802] [2021-10-13 00:36:35,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42356802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:35,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280400952] [2021-10-13 00:36:35,359 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:36:35,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:35,364 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:35,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-10-13 00:36:37,622 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-10-13 00:36:37,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:37,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 55 conjunts are in the unsatisfiable core [2021-10-13 00:36:37,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:38,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280400952] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:38,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:38,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-10-13 00:36:38,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608653080] [2021-10-13 00:36:38,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-10-13 00:36:38,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-10-13 00:36:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 00:36:38,322 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:38,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:38,466 INFO L93 Difference]: Finished difference Result 278 states and 278 transitions. [2021-10-13 00:36:38,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-13 00:36:38,466 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-10-13 00:36:38,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:38,468 INFO L225 Difference]: With dead ends: 278 [2021-10-13 00:36:38,468 INFO L226 Difference]: Without dead ends: 277 [2021-10-13 00:36:38,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 950.5ms TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 00:36:38,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-10-13 00:36:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 276. [2021-10-13 00:36:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 1.0036363636363637) internal successors, (276), 275 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:38,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 276 transitions. [2021-10-13 00:36:38,477 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 276 transitions. Word has length 270 [2021-10-13 00:36:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:38,477 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 276 transitions. [2021-10-13 00:36:38,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:38,478 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 276 transitions. [2021-10-13 00:36:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-10-13 00:36:38,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:38,480 INFO L512 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 1, 1, 1, 1] [2021-10-13 00:36:38,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:38,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-10-13 00:36:38,694 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:38,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:38,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1556328411, now seen corresponding path program 54 times [2021-10-13 00:36:38,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:38,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559264981] [2021-10-13 00:36:38,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:38,695 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:39,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:39,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:39,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559264981] [2021-10-13 00:36:39,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559264981] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:39,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641206473] [2021-10-13 00:36:39,934 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:36:39,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:39,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:39,936 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:39,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-10-13 00:36:42,445 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-10-13 00:36:42,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:42,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 56 conjunts are in the unsatisfiable core [2021-10-13 00:36:42,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:43,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:43,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641206473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:43,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:43,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-10-13 00:36:43,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783901271] [2021-10-13 00:36:43,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-10-13 00:36:43,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:43,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-10-13 00:36:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 00:36:43,213 INFO L87 Difference]: Start difference. First operand 276 states and 276 transitions. Second operand has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:43,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:43,412 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2021-10-13 00:36:43,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-13 00:36:43,413 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2021-10-13 00:36:43,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:43,414 INFO L225 Difference]: With dead ends: 283 [2021-10-13 00:36:43,414 INFO L226 Difference]: Without dead ends: 282 [2021-10-13 00:36:43,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1035.6ms TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 00:36:43,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-10-13 00:36:43,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 281. [2021-10-13 00:36:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.0035714285714286) internal successors, (281), 280 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:43,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2021-10-13 00:36:43,421 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 275 [2021-10-13 00:36:43,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:43,421 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2021-10-13 00:36:43,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2021-10-13 00:36:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-10-13 00:36:43,422 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:43,423 INFO L512 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 1, 1, 1, 1] [2021-10-13 00:36:43,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:43,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:43,623 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:43,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:43,624 INFO L82 PathProgramCache]: Analyzing trace with hash -940439055, now seen corresponding path program 55 times [2021-10-13 00:36:43,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:43,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863346917] [2021-10-13 00:36:43,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:43,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:44,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:44,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863346917] [2021-10-13 00:36:44,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863346917] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:44,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309513554] [2021-10-13 00:36:44,996 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:36:44,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:44,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:44,997 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:44,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-10-13 00:36:47,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:47,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-13 00:36:47,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:48,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:48,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309513554] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:48,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:48,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-10-13 00:36:48,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256383269] [2021-10-13 00:36:48,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-10-13 00:36:48,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:48,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-10-13 00:36:48,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 00:36:48,215 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:48,463 INFO L93 Difference]: Finished difference Result 288 states and 288 transitions. [2021-10-13 00:36:48,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-10-13 00:36:48,464 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-10-13 00:36:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:48,466 INFO L225 Difference]: With dead ends: 288 [2021-10-13 00:36:48,466 INFO L226 Difference]: Without dead ends: 287 [2021-10-13 00:36:48,467 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1186.2ms TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 00:36:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-10-13 00:36:48,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2021-10-13 00:36:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2021-10-13 00:36:48,474 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 280 [2021-10-13 00:36:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:48,475 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2021-10-13 00:36:48,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:48,475 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2021-10-13 00:36:48,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-10-13 00:36:48,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:48,478 INFO L512 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 1, 1, 1, 1] [2021-10-13 00:36:48,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:48,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:48,693 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:48,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:48,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1493471141, now seen corresponding path program 56 times [2021-10-13 00:36:48,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:48,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834024742] [2021-10-13 00:36:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:48,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:49,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:49,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834024742] [2021-10-13 00:36:49,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834024742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:49,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148255858] [2021-10-13 00:36:49,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:36:49,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:49,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:49,977 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:49,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-10-13 00:36:52,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:36:52,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:52,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 58 conjunts are in the unsatisfiable core [2021-10-13 00:36:52,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:53,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:53,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148255858] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:53,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:53,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-10-13 00:36:53,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996815619] [2021-10-13 00:36:53,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-10-13 00:36:53,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:53,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-10-13 00:36:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 00:36:53,188 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:53,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:53,318 INFO L93 Difference]: Finished difference Result 293 states and 293 transitions. [2021-10-13 00:36:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-10-13 00:36:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-10-13 00:36:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:53,320 INFO L225 Difference]: With dead ends: 293 [2021-10-13 00:36:53,320 INFO L226 Difference]: Without dead ends: 292 [2021-10-13 00:36:53,320 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1110.2ms TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 00:36:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-10-13 00:36:53,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2021-10-13 00:36:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.0034482758620689) internal successors, (291), 290 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:53,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 291 transitions. [2021-10-13 00:36:53,329 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 291 transitions. Word has length 285 [2021-10-13 00:36:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:53,329 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 291 transitions. [2021-10-13 00:36:53,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:53,330 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 291 transitions. [2021-10-13 00:36:53,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-10-13 00:36:53,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:53,332 INFO L512 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 1, 1, 1, 1] [2021-10-13 00:36:53,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:53,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:53,558 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:53,559 INFO L82 PathProgramCache]: Analyzing trace with hash -890930575, now seen corresponding path program 57 times [2021-10-13 00:36:53,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:53,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222819584] [2021-10-13 00:36:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:53,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:36:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:54,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:36:54,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222819584] [2021-10-13 00:36:54,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222819584] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:54,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100691626] [2021-10-13 00:36:54,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:36:54,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:54,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:36:54,879 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:36:54,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-10-13 00:36:57,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-10-13 00:36:57,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:36:57,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 59 conjunts are in the unsatisfiable core [2021-10-13 00:36:57,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:36:58,420 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:36:58,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100691626] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:36:58,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:36:58,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-10-13 00:36:58,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155681200] [2021-10-13 00:36:58,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-10-13 00:36:58,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:36:58,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-10-13 00:36:58,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 00:36:58,423 INFO L87 Difference]: Start difference. First operand 291 states and 291 transitions. Second operand has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:58,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:36:58,578 INFO L93 Difference]: Finished difference Result 298 states and 298 transitions. [2021-10-13 00:36:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-10-13 00:36:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-10-13 00:36:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:36:58,581 INFO L225 Difference]: With dead ends: 298 [2021-10-13 00:36:58,581 INFO L226 Difference]: Without dead ends: 297 [2021-10-13 00:36:58,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1149.4ms TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 00:36:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-13 00:36:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2021-10-13 00:36:58,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.0033898305084745) internal successors, (296), 295 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 296 transitions. [2021-10-13 00:36:58,592 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 296 transitions. Word has length 290 [2021-10-13 00:36:58,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:36:58,593 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 296 transitions. [2021-10-13 00:36:58,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:36:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 296 transitions. [2021-10-13 00:36:58,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-10-13 00:36:58,596 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:36:58,596 INFO L512 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 1, 1, 1, 1] [2021-10-13 00:36:58,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:36:58,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:36:58,809 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:36:58,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:36:58,810 INFO L82 PathProgramCache]: Analyzing trace with hash 790851365, now seen corresponding path program 58 times [2021-10-13 00:36:58,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:36:58,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988438338] [2021-10-13 00:36:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:36:58,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:36:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:00,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:00,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988438338] [2021-10-13 00:37:00,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988438338] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:00,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765517177] [2021-10-13 00:37:00,517 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:37:00,518 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:00,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:00,518 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:00,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-10-13 00:37:03,157 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:37:03,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:03,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 60 conjunts are in the unsatisfiable core [2021-10-13 00:37:03,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:03,897 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:03,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765517177] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:03,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:03,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-10-13 00:37:03,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915184414] [2021-10-13 00:37:03,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-10-13 00:37:03,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:03,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-10-13 00:37:03,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-10-13 00:37:03,900 INFO L87 Difference]: Start difference. First operand 296 states and 296 transitions. Second operand has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:04,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:04,048 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-10-13 00:37:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-13 00:37:04,048 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-10-13 00:37:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:04,050 INFO L225 Difference]: With dead ends: 303 [2021-10-13 00:37:04,050 INFO L226 Difference]: Without dead ends: 302 [2021-10-13 00:37:04,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1451.4ms TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-10-13 00:37:04,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-13 00:37:04,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 301. [2021-10-13 00:37:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.0033333333333334) internal successors, (301), 300 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:04,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 301 transitions. [2021-10-13 00:37:04,055 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 301 transitions. Word has length 295 [2021-10-13 00:37:04,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:04,055 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 301 transitions. [2021-10-13 00:37:04,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:04,055 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 301 transitions. [2021-10-13 00:37:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-10-13 00:37:04,056 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:04,057 INFO L512 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 1, 1, 1, 1] [2021-10-13 00:37:04,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:04,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:04,257 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:04,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:04,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2057718513, now seen corresponding path program 59 times [2021-10-13 00:37:04,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:04,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149818961] [2021-10-13 00:37:04,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:04,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:05,635 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:05,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:05,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149818961] [2021-10-13 00:37:05,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149818961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:05,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238795611] [2021-10-13 00:37:05,635 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:37:05,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:05,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:05,636 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:05,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-10-13 00:37:08,408 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-10-13 00:37:08,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:08,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 61 conjunts are in the unsatisfiable core [2021-10-13 00:37:08,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:09,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238795611] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:09,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:09,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-10-13 00:37:09,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308789233] [2021-10-13 00:37:09,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-13 00:37:09,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:09,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-13 00:37:09,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-10-13 00:37:09,100 INFO L87 Difference]: Start difference. First operand 301 states and 301 transitions. Second operand has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:09,252 INFO L93 Difference]: Finished difference Result 308 states and 308 transitions. [2021-10-13 00:37:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-13 00:37:09,253 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-10-13 00:37:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:09,254 INFO L225 Difference]: With dead ends: 308 [2021-10-13 00:37:09,254 INFO L226 Difference]: Without dead ends: 307 [2021-10-13 00:37:09,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1170.9ms TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-10-13 00:37:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-10-13 00:37:09,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 306. [2021-10-13 00:37:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.0032786885245901) internal successors, (306), 305 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-10-13 00:37:09,261 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 300 [2021-10-13 00:37:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:09,261 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-10-13 00:37:09,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-10-13 00:37:09,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-10-13 00:37:09,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:09,264 INFO L512 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 1, 1, 1, 1] [2021-10-13 00:37:09,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-10-13 00:37:09,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-10-13 00:37:09,485 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:09,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:09,486 INFO L82 PathProgramCache]: Analyzing trace with hash 567340709, now seen corresponding path program 60 times [2021-10-13 00:37:09,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:09,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606042992] [2021-10-13 00:37:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:09,486 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:10,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:10,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606042992] [2021-10-13 00:37:10,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606042992] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:10,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101365671] [2021-10-13 00:37:10,927 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:37:10,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:10,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:10,928 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:10,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-10-13 00:37:13,826 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-10-13 00:37:13,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:13,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 62 conjunts are in the unsatisfiable core [2021-10-13 00:37:13,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:14,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101365671] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:14,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:14,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-10-13 00:37:14,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197902087] [2021-10-13 00:37:14,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-10-13 00:37:14,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:14,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-10-13 00:37:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 00:37:14,667 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:14,824 INFO L93 Difference]: Finished difference Result 313 states and 313 transitions. [2021-10-13 00:37:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-10-13 00:37:14,824 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-10-13 00:37:14,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:14,826 INFO L225 Difference]: With dead ends: 313 [2021-10-13 00:37:14,827 INFO L226 Difference]: Without dead ends: 312 [2021-10-13 00:37:14,827 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1271.8ms TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-10-13 00:37:14,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-10-13 00:37:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 311. [2021-10-13 00:37:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.0032258064516129) internal successors, (311), 310 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 311 transitions. [2021-10-13 00:37:14,836 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 311 transitions. Word has length 305 [2021-10-13 00:37:14,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:14,836 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 311 transitions. [2021-10-13 00:37:14,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:14,837 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 311 transitions. [2021-10-13 00:37:14,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-10-13 00:37:14,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:14,839 INFO L512 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 1, 1, 1, 1] [2021-10-13 00:37:14,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:15,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:15,066 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:15,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:15,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1107526799, now seen corresponding path program 61 times [2021-10-13 00:37:15,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:15,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367592501] [2021-10-13 00:37:15,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:15,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:15,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:16,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:16,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367592501] [2021-10-13 00:37:16,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367592501] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:16,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239645448] [2021-10-13 00:37:16,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:37:16,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:16,571 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:16,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-10-13 00:37:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:19,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-13 00:37:19,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:20,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239645448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:20,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:20,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-10-13 00:37:20,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493259401] [2021-10-13 00:37:20,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-10-13 00:37:20,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:20,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-10-13 00:37:20,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-13 00:37:20,710 INFO L87 Difference]: Start difference. First operand 311 states and 311 transitions. Second operand has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:20,888 INFO L93 Difference]: Finished difference Result 318 states and 318 transitions. [2021-10-13 00:37:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-10-13 00:37:20,888 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-10-13 00:37:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:20,890 INFO L225 Difference]: With dead ends: 318 [2021-10-13 00:37:20,890 INFO L226 Difference]: Without dead ends: 317 [2021-10-13 00:37:20,890 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1317.6ms TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-10-13 00:37:20,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-13 00:37:20,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 316. [2021-10-13 00:37:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.0031746031746032) internal successors, (316), 315 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2021-10-13 00:37:20,895 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 310 [2021-10-13 00:37:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:20,895 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2021-10-13 00:37:20,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2021-10-13 00:37:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-10-13 00:37:20,896 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:20,897 INFO L512 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-10-13 00:37:20,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-10-13 00:37:21,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:21,097 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:21,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1195707941, now seen corresponding path program 62 times [2021-10-13 00:37:21,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:21,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702707473] [2021-10-13 00:37:21,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:21,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:22,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:22,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702707473] [2021-10-13 00:37:22,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702707473] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:22,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534756279] [2021-10-13 00:37:22,669 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:37:22,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:22,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:22,670 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:22,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-10-13 00:37:25,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:37:25,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:25,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 64 conjunts are in the unsatisfiable core [2021-10-13 00:37:25,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:26,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534756279] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:26,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:26,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-10-13 00:37:26,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407394915] [2021-10-13 00:37:26,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-10-13 00:37:26,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-10-13 00:37:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-10-13 00:37:26,673 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:26,915 INFO L93 Difference]: Finished difference Result 323 states and 323 transitions. [2021-10-13 00:37:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-10-13 00:37:26,916 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2021-10-13 00:37:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:26,918 INFO L225 Difference]: With dead ends: 323 [2021-10-13 00:37:26,918 INFO L226 Difference]: Without dead ends: 322 [2021-10-13 00:37:26,919 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1391.1ms TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-10-13 00:37:26,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-13 00:37:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2021-10-13 00:37:26,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2021-10-13 00:37:26,931 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 315 [2021-10-13 00:37:26,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:26,931 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2021-10-13 00:37:26,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:26,931 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2021-10-13 00:37:26,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-10-13 00:37:26,933 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:26,933 INFO L512 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 1, 1, 1, 1] [2021-10-13 00:37:26,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:27,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-10-13 00:37:27,134 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:27,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:27,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1582298127, now seen corresponding path program 63 times [2021-10-13 00:37:27,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:27,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287902885] [2021-10-13 00:37:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:27,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:28,870 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:28,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287902885] [2021-10-13 00:37:28,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287902885] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:28,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577212509] [2021-10-13 00:37:28,870 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:37:28,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:28,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:28,871 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:28,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-10-13 00:37:32,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-10-13 00:37:32,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:32,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-13 00:37:32,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:32,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577212509] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:32,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:32,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-10-13 00:37:32,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566288019] [2021-10-13 00:37:32,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-10-13 00:37:32,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:32,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-10-13 00:37:32,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-10-13 00:37:32,961 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:33,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:33,132 INFO L93 Difference]: Finished difference Result 328 states and 328 transitions. [2021-10-13 00:37:33,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-13 00:37:33,133 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2021-10-13 00:37:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:33,135 INFO L225 Difference]: With dead ends: 328 [2021-10-13 00:37:33,135 INFO L226 Difference]: Without dead ends: 327 [2021-10-13 00:37:33,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1499.6ms TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-10-13 00:37:33,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-10-13 00:37:33,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2021-10-13 00:37:33,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.003076923076923) internal successors, (326), 325 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 326 transitions. [2021-10-13 00:37:33,143 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 326 transitions. Word has length 320 [2021-10-13 00:37:33,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:33,143 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 326 transitions. [2021-10-13 00:37:33,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:33,144 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 326 transitions. [2021-10-13 00:37:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-10-13 00:37:33,146 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:33,147 INFO L512 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 1, 1, 1, 1] [2021-10-13 00:37:33,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:33,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:33,362 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:33,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:33,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1337445797, now seen corresponding path program 64 times [2021-10-13 00:37:33,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:33,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445423876] [2021-10-13 00:37:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:33,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:34,980 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:34,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:34,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445423876] [2021-10-13 00:37:34,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445423876] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:34,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697981299] [2021-10-13 00:37:34,981 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:37:34,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:34,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:34,982 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:34,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-13 00:37:38,242 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:37:38,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:38,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 66 conjunts are in the unsatisfiable core [2021-10-13 00:37:38,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:38,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697981299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:38,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:38,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-10-13 00:37:38,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809632332] [2021-10-13 00:37:38,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-10-13 00:37:38,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:38,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-10-13 00:37:38,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-10-13 00:37:38,991 INFO L87 Difference]: Start difference. First operand 326 states and 326 transitions. Second operand has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:39,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:39,159 INFO L93 Difference]: Finished difference Result 333 states and 333 transitions. [2021-10-13 00:37:39,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-13 00:37:39,159 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-10-13 00:37:39,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:39,161 INFO L225 Difference]: With dead ends: 333 [2021-10-13 00:37:39,161 INFO L226 Difference]: Without dead ends: 332 [2021-10-13 00:37:39,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1433.3ms TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-10-13 00:37:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-10-13 00:37:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2021-10-13 00:37:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:39,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2021-10-13 00:37:39,166 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 325 [2021-10-13 00:37:39,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:39,166 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2021-10-13 00:37:39,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:39,167 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2021-10-13 00:37:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-10-13 00:37:39,168 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:39,168 INFO L512 BasicCegarLoop]: trace histogram [66, 65, 65, 65, 65, 1, 1, 1, 1] [2021-10-13 00:37:39,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-10-13 00:37:39,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-10-13 00:37:39,370 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:39,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:39,370 INFO L82 PathProgramCache]: Analyzing trace with hash -662111119, now seen corresponding path program 65 times [2021-10-13 00:37:39,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:39,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335205544] [2021-10-13 00:37:39,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:39,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:41,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:41,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335205544] [2021-10-13 00:37:41,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335205544] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:41,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56720928] [2021-10-13 00:37:41,004 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:37:41,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:41,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:41,005 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:41,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-13 00:37:44,430 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-10-13 00:37:44,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:44,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 67 conjunts are in the unsatisfiable core [2021-10-13 00:37:44,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:45,297 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:45,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56720928] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:45,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:45,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 67 [2021-10-13 00:37:45,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117073250] [2021-10-13 00:37:45,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-10-13 00:37:45,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:45,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-10-13 00:37:45,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-10-13 00:37:45,299 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:45,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:45,467 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2021-10-13 00:37:45,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-10-13 00:37:45,467 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-10-13 00:37:45,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:45,469 INFO L225 Difference]: With dead ends: 338 [2021-10-13 00:37:45,469 INFO L226 Difference]: Without dead ends: 337 [2021-10-13 00:37:45,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1440.7ms TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-10-13 00:37:45,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-13 00:37:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 336. [2021-10-13 00:37:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 1.0029850746268656) internal successors, (336), 335 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:45,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 336 transitions. [2021-10-13 00:37:45,474 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 336 transitions. Word has length 330 [2021-10-13 00:37:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:45,475 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 336 transitions. [2021-10-13 00:37:45,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:45,475 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 336 transitions. [2021-10-13 00:37:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-10-13 00:37:45,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:45,477 INFO L512 BasicCegarLoop]: trace histogram [67, 66, 66, 66, 66, 1, 1, 1, 1] [2021-10-13 00:37:45,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-10-13 00:37:45,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-13 00:37:45,678 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash 90254629, now seen corresponding path program 66 times [2021-10-13 00:37:45,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:45,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224120445] [2021-10-13 00:37:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:45,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:47,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:47,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224120445] [2021-10-13 00:37:47,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224120445] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:47,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127651801] [2021-10-13 00:37:47,392 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:37:47,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:47,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:47,392 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:47,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-13 00:37:50,883 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-10-13 00:37:50,883 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:37:50,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 68 conjunts are in the unsatisfiable core [2021-10-13 00:37:50,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:51,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127651801] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:51,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:51,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-10-13 00:37:51,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26876085] [2021-10-13 00:37:51,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-10-13 00:37:51,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:51,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-10-13 00:37:51,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-10-13 00:37:51,670 INFO L87 Difference]: Start difference. First operand 336 states and 336 transitions. Second operand has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:51,884 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-10-13 00:37:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-13 00:37:51,884 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-10-13 00:37:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:51,886 INFO L225 Difference]: With dead ends: 343 [2021-10-13 00:37:51,886 INFO L226 Difference]: Without dead ends: 342 [2021-10-13 00:37:51,887 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1503.9ms TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-10-13 00:37:51,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-10-13 00:37:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2021-10-13 00:37:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.0029411764705882) internal successors, (341), 340 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2021-10-13 00:37:51,894 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 335 [2021-10-13 00:37:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:51,894 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2021-10-13 00:37:51,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2021-10-13 00:37:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-10-13 00:37:51,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:51,897 INFO L512 BasicCegarLoop]: trace histogram [68, 67, 67, 67, 67, 1, 1, 1, 1] [2021-10-13 00:37:51,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-10-13 00:37:52,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:52,118 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:52,119 INFO L82 PathProgramCache]: Analyzing trace with hash 995052785, now seen corresponding path program 67 times [2021-10-13 00:37:52,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:52,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521630740] [2021-10-13 00:37:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:52,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:53,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:37:53,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521630740] [2021-10-13 00:37:53,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521630740] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:53,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074568357] [2021-10-13 00:37:53,883 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:37:53,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:53,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:37:53,885 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:37:53,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-13 00:37:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:37:57,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 69 conjunts are in the unsatisfiable core [2021-10-13 00:37:57,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:37:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:37:58,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074568357] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:37:58,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:37:58,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 69 [2021-10-13 00:37:58,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9072843] [2021-10-13 00:37:58,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-10-13 00:37:58,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:37:58,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-10-13 00:37:58,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 00:37:58,112 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:37:58,278 INFO L93 Difference]: Finished difference Result 348 states and 348 transitions. [2021-10-13 00:37:58,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-10-13 00:37:58,279 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2021-10-13 00:37:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:37:58,280 INFO L225 Difference]: With dead ends: 348 [2021-10-13 00:37:58,280 INFO L226 Difference]: Without dead ends: 347 [2021-10-13 00:37:58,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1584.4ms TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-10-13 00:37:58,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-10-13 00:37:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 346. [2021-10-13 00:37:58,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.0028985507246377) internal successors, (346), 345 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 346 transitions. [2021-10-13 00:37:58,285 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 346 transitions. Word has length 340 [2021-10-13 00:37:58,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:37:58,286 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 346 transitions. [2021-10-13 00:37:58,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:37:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 346 transitions. [2021-10-13 00:37:58,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-10-13 00:37:58,288 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:37:58,288 INFO L512 BasicCegarLoop]: trace histogram [69, 68, 68, 68, 68, 1, 1, 1, 1] [2021-10-13 00:37:58,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-10-13 00:37:58,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:37:58,489 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:37:58,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:37:58,489 INFO L82 PathProgramCache]: Analyzing trace with hash -864473947, now seen corresponding path program 68 times [2021-10-13 00:37:58,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:37:58,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965025569] [2021-10-13 00:37:58,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:37:58,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:37:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:00,429 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:00,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:00,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965025569] [2021-10-13 00:38:00,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965025569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:00,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135856822] [2021-10-13 00:38:00,430 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:38:00,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:00,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:00,430 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:00,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-13 00:38:04,193 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:38:04,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:04,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 70 conjunts are in the unsatisfiable core [2021-10-13 00:38:04,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:05,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135856822] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:05,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:05,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-10-13 00:38:05,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955134018] [2021-10-13 00:38:05,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-10-13 00:38:05,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-10-13 00:38:05,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-10-13 00:38:05,115 INFO L87 Difference]: Start difference. First operand 346 states and 346 transitions. Second operand has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:05,344 INFO L93 Difference]: Finished difference Result 353 states and 353 transitions. [2021-10-13 00:38:05,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-10-13 00:38:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2021-10-13 00:38:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:05,346 INFO L225 Difference]: With dead ends: 353 [2021-10-13 00:38:05,346 INFO L226 Difference]: Without dead ends: 352 [2021-10-13 00:38:05,347 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1683.0ms TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-10-13 00:38:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-10-13 00:38:05,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2021-10-13 00:38:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.002857142857143) internal successors, (351), 350 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2021-10-13 00:38:05,352 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 345 [2021-10-13 00:38:05,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:05,353 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2021-10-13 00:38:05,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:05,353 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2021-10-13 00:38:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-10-13 00:38:05,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:05,355 INFO L512 BasicCegarLoop]: trace histogram [70, 69, 69, 69, 69, 1, 1, 1, 1] [2021-10-13 00:38:05,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-13 00:38:05,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:05,558 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:05,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:05,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1221262705, now seen corresponding path program 69 times [2021-10-13 00:38:05,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:05,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802926222] [2021-10-13 00:38:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:05,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:07,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:07,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802926222] [2021-10-13 00:38:07,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802926222] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:07,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168364569] [2021-10-13 00:38:07,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:38:07,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:07,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:07,437 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:07,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-13 00:38:11,358 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-10-13 00:38:11,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:11,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 71 conjunts are in the unsatisfiable core [2021-10-13 00:38:11,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:12,175 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:12,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168364569] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:12,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:12,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 71 [2021-10-13 00:38:12,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619416946] [2021-10-13 00:38:12,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-10-13 00:38:12,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:12,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-10-13 00:38:12,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-10-13 00:38:12,177 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:12,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:12,373 INFO L93 Difference]: Finished difference Result 358 states and 358 transitions. [2021-10-13 00:38:12,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-13 00:38:12,373 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-10-13 00:38:12,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:12,375 INFO L225 Difference]: With dead ends: 358 [2021-10-13 00:38:12,375 INFO L226 Difference]: Without dead ends: 357 [2021-10-13 00:38:12,376 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1679.2ms TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-10-13 00:38:12,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-13 00:38:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2021-10-13 00:38:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 1.0028169014084507) internal successors, (356), 355 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:12,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2021-10-13 00:38:12,383 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 350 [2021-10-13 00:38:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:12,384 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2021-10-13 00:38:12,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2021-10-13 00:38:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-10-13 00:38:12,387 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:12,387 INFO L512 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 1, 1, 1, 1] [2021-10-13 00:38:12,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:12,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:12,614 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:12,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:12,615 INFO L82 PathProgramCache]: Analyzing trace with hash 590859301, now seen corresponding path program 70 times [2021-10-13 00:38:12,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:12,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064724610] [2021-10-13 00:38:12,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:12,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:14,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:14,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064724610] [2021-10-13 00:38:14,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064724610] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:14,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092847983] [2021-10-13 00:38:14,558 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:38:14,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:14,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:14,559 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:14,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-10-13 00:38:18,328 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:38:18,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:18,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 72 conjunts are in the unsatisfiable core [2021-10-13 00:38:18,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:19,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092847983] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:19,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:19,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 72 [2021-10-13 00:38:19,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987791157] [2021-10-13 00:38:19,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-10-13 00:38:19,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:19,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-10-13 00:38:19,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-10-13 00:38:19,212 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:19,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:19,430 INFO L93 Difference]: Finished difference Result 363 states and 363 transitions. [2021-10-13 00:38:19,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-10-13 00:38:19,430 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2021-10-13 00:38:19,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:19,432 INFO L225 Difference]: With dead ends: 363 [2021-10-13 00:38:19,432 INFO L226 Difference]: Without dead ends: 362 [2021-10-13 00:38:19,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1715.6ms TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-10-13 00:38:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-10-13 00:38:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2021-10-13 00:38:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.0027777777777778) internal successors, (361), 360 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 361 transitions. [2021-10-13 00:38:19,438 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 361 transitions. Word has length 355 [2021-10-13 00:38:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:19,438 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 361 transitions. [2021-10-13 00:38:19,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 361 transitions. [2021-10-13 00:38:19,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-10-13 00:38:19,440 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:19,440 INFO L512 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 1, 1, 1, 1] [2021-10-13 00:38:19,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:19,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:19,641 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1513878031, now seen corresponding path program 71 times [2021-10-13 00:38:19,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:19,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851589005] [2021-10-13 00:38:19,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:19,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:21,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:21,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:21,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851589005] [2021-10-13 00:38:21,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851589005] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:21,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27991590] [2021-10-13 00:38:21,599 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:38:21,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:21,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:21,600 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:21,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-10-13 00:38:25,706 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-10-13 00:38:25,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:25,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 73 conjunts are in the unsatisfiable core [2021-10-13 00:38:25,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:26,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27991590] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:26,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:26,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 73 [2021-10-13 00:38:26,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289688919] [2021-10-13 00:38:26,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2021-10-13 00:38:26,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:26,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-10-13 00:38:26,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-10-13 00:38:26,593 INFO L87 Difference]: Start difference. First operand 361 states and 361 transitions. Second operand has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:26,822 INFO L93 Difference]: Finished difference Result 368 states and 368 transitions. [2021-10-13 00:38:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-10-13 00:38:26,822 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 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 360 [2021-10-13 00:38:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:26,824 INFO L225 Difference]: With dead ends: 368 [2021-10-13 00:38:26,824 INFO L226 Difference]: Without dead ends: 367 [2021-10-13 00:38:26,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1758.9ms TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-10-13 00:38:26,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-10-13 00:38:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 366. [2021-10-13 00:38:26,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.0027397260273974) internal successors, (366), 365 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 366 transitions. [2021-10-13 00:38:26,830 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 366 transitions. Word has length 360 [2021-10-13 00:38:26,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:26,831 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 366 transitions. [2021-10-13 00:38:26,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 366 transitions. [2021-10-13 00:38:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-10-13 00:38:26,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:26,835 INFO L512 BasicCegarLoop]: trace histogram [73, 72, 72, 72, 72, 1, 1, 1, 1] [2021-10-13 00:38:26,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-10-13 00:38:27,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:27,046 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:27,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:27,047 INFO L82 PathProgramCache]: Analyzing trace with hash 567610277, now seen corresponding path program 72 times [2021-10-13 00:38:27,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:27,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816868054] [2021-10-13 00:38:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:27,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:27,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:29,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:29,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816868054] [2021-10-13 00:38:29,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816868054] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:29,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738692027] [2021-10-13 00:38:29,085 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:38:29,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:29,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:29,086 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:29,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-10-13 00:38:33,227 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-10-13 00:38:33,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:33,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 74 conjunts are in the unsatisfiable core [2021-10-13 00:38:33,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:34,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:34,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738692027] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:34,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:34,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 74 [2021-10-13 00:38:34,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613384655] [2021-10-13 00:38:34,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-10-13 00:38:34,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-10-13 00:38:34,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-10-13 00:38:34,115 INFO L87 Difference]: Start difference. First operand 366 states and 366 transitions. Second operand has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:34,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:34,360 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2021-10-13 00:38:34,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-10-13 00:38:34,360 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 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 365 [2021-10-13 00:38:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:34,362 INFO L225 Difference]: With dead ends: 373 [2021-10-13 00:38:34,362 INFO L226 Difference]: Without dead ends: 372 [2021-10-13 00:38:34,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1763.0ms TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-10-13 00:38:34,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-13 00:38:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2021-10-13 00:38:34,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.0027027027027027) internal successors, (371), 370 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 371 transitions. [2021-10-13 00:38:34,370 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 371 transitions. Word has length 365 [2021-10-13 00:38:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:34,370 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 371 transitions. [2021-10-13 00:38:34,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 371 transitions. [2021-10-13 00:38:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-10-13 00:38:34,374 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:34,374 INFO L512 BasicCegarLoop]: trace histogram [74, 73, 73, 73, 73, 1, 1, 1, 1] [2021-10-13 00:38:34,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:34,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2021-10-13 00:38:34,598 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:34,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:34,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1660780943, now seen corresponding path program 73 times [2021-10-13 00:38:34,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:34,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512120500] [2021-10-13 00:38:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:34,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:36,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:36,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512120500] [2021-10-13 00:38:36,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512120500] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:36,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281930369] [2021-10-13 00:38:36,714 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:38:36,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:36,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:36,715 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:36,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-10-13 00:38:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:40,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 75 conjunts are in the unsatisfiable core [2021-10-13 00:38:40,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:41,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281930369] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:41,795 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:41,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 75 [2021-10-13 00:38:41,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390159938] [2021-10-13 00:38:41,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-10-13 00:38:41,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:41,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-10-13 00:38:41,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-13 00:38:41,797 INFO L87 Difference]: Start difference. First operand 371 states and 371 transitions. Second operand has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:42,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:42,021 INFO L93 Difference]: Finished difference Result 378 states and 378 transitions. [2021-10-13 00:38:42,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-10-13 00:38:42,021 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 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 370 [2021-10-13 00:38:42,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:42,023 INFO L225 Difference]: With dead ends: 378 [2021-10-13 00:38:42,023 INFO L226 Difference]: Without dead ends: 377 [2021-10-13 00:38:42,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1808.7ms TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-10-13 00:38:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-10-13 00:38:42,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2021-10-13 00:38:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.0026666666666666) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2021-10-13 00:38:42,029 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 370 [2021-10-13 00:38:42,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:42,030 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2021-10-13 00:38:42,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:42,030 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2021-10-13 00:38:42,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-10-13 00:38:42,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:42,032 INFO L512 BasicCegarLoop]: trace histogram [75, 74, 74, 74, 74, 1, 1, 1, 1] [2021-10-13 00:38:42,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-10-13 00:38:42,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:42,233 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:42,233 INFO L82 PathProgramCache]: Analyzing trace with hash -91690203, now seen corresponding path program 74 times [2021-10-13 00:38:42,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:42,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33983029] [2021-10-13 00:38:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:42,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:44,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:44,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33983029] [2021-10-13 00:38:44,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33983029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:44,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306990899] [2021-10-13 00:38:44,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:38:44,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:44,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:44,394 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:44,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-10-13 00:38:48,893 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:38:48,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:48,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 76 conjunts are in the unsatisfiable core [2021-10-13 00:38:48,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:50,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306990899] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:50,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:50,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-10-13 00:38:50,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053642770] [2021-10-13 00:38:50,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-10-13 00:38:50,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:50,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-10-13 00:38:50,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-13 00:38:50,010 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:50,235 INFO L93 Difference]: Finished difference Result 383 states and 383 transitions. [2021-10-13 00:38:50,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-10-13 00:38:50,235 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 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 375 [2021-10-13 00:38:50,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:50,237 INFO L225 Difference]: With dead ends: 383 [2021-10-13 00:38:50,237 INFO L226 Difference]: Without dead ends: 382 [2021-10-13 00:38:50,237 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1881.0ms TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-10-13 00:38:50,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-10-13 00:38:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2021-10-13 00:38:50,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.0026315789473683) internal successors, (381), 380 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 381 transitions. [2021-10-13 00:38:50,242 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 381 transitions. Word has length 375 [2021-10-13 00:38:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:50,243 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 381 transitions. [2021-10-13 00:38:50,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:50,243 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 381 transitions. [2021-10-13 00:38:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-10-13 00:38:50,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:50,246 INFO L512 BasicCegarLoop]: trace histogram [76, 75, 75, 75, 75, 1, 1, 1, 1] [2021-10-13 00:38:50,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-10-13 00:38:50,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-10-13 00:38:50,458 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:50,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:50,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1622257935, now seen corresponding path program 75 times [2021-10-13 00:38:50,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:50,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352500791] [2021-10-13 00:38:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:50,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:50,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:38:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:52,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:38:52,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352500791] [2021-10-13 00:38:52,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352500791] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:52,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863926715] [2021-10-13 00:38:52,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:38:52,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:38:52,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:38:52,861 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:38:52,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-10-13 00:38:57,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-10-13 00:38:57,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:38:57,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 77 conjunts are in the unsatisfiable core [2021-10-13 00:38:57,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:38:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:38:58,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863926715] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:38:58,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:38:58,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 77 [2021-10-13 00:38:58,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186177066] [2021-10-13 00:38:58,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-13 00:38:58,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:38:58,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-13 00:38:58,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-13 00:38:58,719 INFO L87 Difference]: Start difference. First operand 381 states and 381 transitions. Second operand has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:58,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:38:58,937 INFO L93 Difference]: Finished difference Result 388 states and 388 transitions. [2021-10-13 00:38:58,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-10-13 00:38:58,938 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 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 380 [2021-10-13 00:38:58,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:38:58,940 INFO L225 Difference]: With dead ends: 388 [2021-10-13 00:38:58,940 INFO L226 Difference]: Without dead ends: 387 [2021-10-13 00:38:58,940 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2079.2ms TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-10-13 00:38:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-13 00:38:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2021-10-13 00:38:58,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.0025974025974025) internal successors, (386), 385 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:58,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-10-13 00:38:58,948 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 380 [2021-10-13 00:38:58,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:38:58,949 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-10-13 00:38:58,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:38:58,949 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-10-13 00:38:58,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-10-13 00:38:58,952 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:38:58,953 INFO L512 BasicCegarLoop]: trace histogram [77, 76, 76, 76, 76, 1, 1, 1, 1] [2021-10-13 00:38:59,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-10-13 00:38:59,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-10-13 00:38:59,166 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:38:59,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:38:59,167 INFO L82 PathProgramCache]: Analyzing trace with hash 2039179941, now seen corresponding path program 76 times [2021-10-13 00:38:59,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:38:59,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104520781] [2021-10-13 00:38:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:38:59,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:38:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:01,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:01,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104520781] [2021-10-13 00:39:01,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104520781] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:01,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998766510] [2021-10-13 00:39:01,438 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:39:01,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:01,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:01,438 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:01,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-10-13 00:39:05,994 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:39:05,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:39:05,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 78 conjunts are in the unsatisfiable core [2021-10-13 00:39:06,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:06,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998766510] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:06,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:06,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-10-13 00:39:06,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898609773] [2021-10-13 00:39:06,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-13 00:39:06,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:06,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-13 00:39:06,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-13 00:39:06,949 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:07,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:07,206 INFO L93 Difference]: Finished difference Result 393 states and 393 transitions. [2021-10-13 00:39:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-13 00:39:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 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 385 [2021-10-13 00:39:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:07,208 INFO L225 Difference]: With dead ends: 393 [2021-10-13 00:39:07,208 INFO L226 Difference]: Without dead ends: 392 [2021-10-13 00:39:07,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1980.4ms TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-10-13 00:39:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-10-13 00:39:07,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2021-10-13 00:39:07,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.0025641025641026) internal successors, (391), 390 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:07,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2021-10-13 00:39:07,213 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 385 [2021-10-13 00:39:07,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:07,213 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2021-10-13 00:39:07,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2021-10-13 00:39:07,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-10-13 00:39:07,215 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:07,215 INFO L512 BasicCegarLoop]: trace histogram [78, 77, 77, 77, 77, 1, 1, 1, 1] [2021-10-13 00:39:07,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-10-13 00:39:07,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:07,416 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:07,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:07,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1016103055, now seen corresponding path program 77 times [2021-10-13 00:39:07,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:07,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355886613] [2021-10-13 00:39:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:07,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:09,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:09,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355886613] [2021-10-13 00:39:09,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355886613] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:09,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049269371] [2021-10-13 00:39:09,836 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:39:09,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:09,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:09,837 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:09,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-10-13 00:39:14,650 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-10-13 00:39:14,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:39:14,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 79 conjunts are in the unsatisfiable core [2021-10-13 00:39:14,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:15,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049269371] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:15,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:15,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 79 [2021-10-13 00:39:15,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035506395] [2021-10-13 00:39:15,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-10-13 00:39:15,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-10-13 00:39:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-13 00:39:15,737 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:16,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:16,045 INFO L93 Difference]: Finished difference Result 398 states and 398 transitions. [2021-10-13 00:39:16,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-10-13 00:39:16,045 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 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 390 [2021-10-13 00:39:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:16,048 INFO L225 Difference]: With dead ends: 398 [2021-10-13 00:39:16,049 INFO L226 Difference]: Without dead ends: 397 [2021-10-13 00:39:16,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2090.3ms TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-10-13 00:39:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-10-13 00:39:16,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-10-13 00:39:16,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2021-10-13 00:39:16,059 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 390 [2021-10-13 00:39:16,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:16,059 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2021-10-13 00:39:16,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:16,060 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2021-10-13 00:39:16,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-10-13 00:39:16,063 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:16,063 INFO L512 BasicCegarLoop]: trace histogram [79, 78, 78, 78, 78, 1, 1, 1, 1] [2021-10-13 00:39:16,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-10-13 00:39:16,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:16,278 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:16,278 INFO L82 PathProgramCache]: Analyzing trace with hash -2062251483, now seen corresponding path program 78 times [2021-10-13 00:39:16,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:16,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265678904] [2021-10-13 00:39:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:16,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:18,668 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:18,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:18,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265678904] [2021-10-13 00:39:18,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265678904] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:18,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404612886] [2021-10-13 00:39:18,669 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:39:18,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:18,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:18,670 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:18,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-10-13 00:39:23,642 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2021-10-13 00:39:23,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:39:23,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 80 conjunts are in the unsatisfiable core [2021-10-13 00:39:23,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:24,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404612886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:24,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:24,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 80 [2021-10-13 00:39:24,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326430600] [2021-10-13 00:39:24,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2021-10-13 00:39:24,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:24,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-10-13 00:39:24,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-10-13 00:39:24,686 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:24,935 INFO L93 Difference]: Finished difference Result 403 states and 403 transitions. [2021-10-13 00:39:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-10-13 00:39:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 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 395 [2021-10-13 00:39:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:24,937 INFO L225 Difference]: With dead ends: 403 [2021-10-13 00:39:24,937 INFO L226 Difference]: Without dead ends: 402 [2021-10-13 00:39:24,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2082.7ms TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-10-13 00:39:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-10-13 00:39:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2021-10-13 00:39:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.0025) internal successors, (401), 400 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:24,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 401 transitions. [2021-10-13 00:39:24,944 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 401 transitions. Word has length 395 [2021-10-13 00:39:24,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:24,944 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 401 transitions. [2021-10-13 00:39:24,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:24,945 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 401 transitions. [2021-10-13 00:39:24,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-10-13 00:39:24,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:24,948 INFO L512 BasicCegarLoop]: trace histogram [80, 79, 79, 79, 79, 1, 1, 1, 1] [2021-10-13 00:39:24,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2021-10-13 00:39:25,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:25,149 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:25,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1177423857, now seen corresponding path program 79 times [2021-10-13 00:39:25,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:25,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111639620] [2021-10-13 00:39:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:25,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:27,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:27,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111639620] [2021-10-13 00:39:27,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111639620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:27,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070886773] [2021-10-13 00:39:27,602 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:39:27,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:27,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:27,604 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:27,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-10-13 00:39:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:32,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 81 conjunts are in the unsatisfiable core [2021-10-13 00:39:32,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:34,027 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:34,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070886773] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:34,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:34,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 81 [2021-10-13 00:39:34,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080235753] [2021-10-13 00:39:34,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-10-13 00:39:34,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:34,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-10-13 00:39:34,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-10-13 00:39:34,030 INFO L87 Difference]: Start difference. First operand 401 states and 401 transitions. Second operand has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:34,302 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2021-10-13 00:39:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-10-13 00:39:34,302 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 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 400 [2021-10-13 00:39:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:34,304 INFO L225 Difference]: With dead ends: 408 [2021-10-13 00:39:34,304 INFO L226 Difference]: Without dead ends: 407 [2021-10-13 00:39:34,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2133.1ms TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-10-13 00:39:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-10-13 00:39:34,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2021-10-13 00:39:34,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.002469135802469) internal successors, (406), 405 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 406 transitions. [2021-10-13 00:39:34,313 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 406 transitions. Word has length 400 [2021-10-13 00:39:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:34,313 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 406 transitions. [2021-10-13 00:39:34,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:34,314 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 406 transitions. [2021-10-13 00:39:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-10-13 00:39:34,316 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:34,316 INFO L512 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 1, 1, 1, 1] [2021-10-13 00:39:34,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2021-10-13 00:39:34,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:34,517 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:34,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:34,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1654896219, now seen corresponding path program 80 times [2021-10-13 00:39:34,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:34,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245655265] [2021-10-13 00:39:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:34,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:37,177 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:37,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:37,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245655265] [2021-10-13 00:39:37,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245655265] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:37,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869419961] [2021-10-13 00:39:37,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:39:37,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:37,181 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:37,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-10-13 00:39:42,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:39:42,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:39:42,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 82 conjunts are in the unsatisfiable core [2021-10-13 00:39:42,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:43,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869419961] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:43,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:43,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 82 [2021-10-13 00:39:43,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145644665] [2021-10-13 00:39:43,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-10-13 00:39:43,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-10-13 00:39:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-10-13 00:39:43,403 INFO L87 Difference]: Start difference. First operand 406 states and 406 transitions. Second operand has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:43,630 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2021-10-13 00:39:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-10-13 00:39:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 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 405 [2021-10-13 00:39:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:43,632 INFO L225 Difference]: With dead ends: 413 [2021-10-13 00:39:43,632 INFO L226 Difference]: Without dead ends: 412 [2021-10-13 00:39:43,633 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2398.3ms TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-10-13 00:39:43,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-10-13 00:39:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2021-10-13 00:39:43,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.002439024390244) internal successors, (411), 410 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 411 transitions. [2021-10-13 00:39:43,638 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 411 transitions. Word has length 405 [2021-10-13 00:39:43,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:43,639 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 411 transitions. [2021-10-13 00:39:43,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 411 transitions. [2021-10-13 00:39:43,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-10-13 00:39:43,641 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:43,641 INFO L512 BasicCegarLoop]: trace histogram [82, 81, 81, 81, 81, 1, 1, 1, 1] [2021-10-13 00:39:43,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-10-13 00:39:43,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:43,842 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:43,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:43,842 INFO L82 PathProgramCache]: Analyzing trace with hash 173146225, now seen corresponding path program 81 times [2021-10-13 00:39:43,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:43,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780432400] [2021-10-13 00:39:43,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:43,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:46,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:46,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780432400] [2021-10-13 00:39:46,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780432400] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:46,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498489844] [2021-10-13 00:39:46,383 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:39:46,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:46,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:46,384 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:46,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-13 00:39:51,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2021-10-13 00:39:51,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:39:51,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 83 conjunts are in the unsatisfiable core [2021-10-13 00:39:51,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:39:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:52,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498489844] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:52,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:39:52,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 83 [2021-10-13 00:39:52,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240014443] [2021-10-13 00:39:52,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-10-13 00:39:52,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:39:52,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-10-13 00:39:52,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-10-13 00:39:52,945 INFO L87 Difference]: Start difference. First operand 411 states and 411 transitions. Second operand has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:53,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:39:53,215 INFO L93 Difference]: Finished difference Result 418 states and 418 transitions. [2021-10-13 00:39:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-10-13 00:39:53,216 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 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 410 [2021-10-13 00:39:53,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:39:53,218 INFO L225 Difference]: With dead ends: 418 [2021-10-13 00:39:53,219 INFO L226 Difference]: Without dead ends: 417 [2021-10-13 00:39:53,219 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2207.5ms TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-10-13 00:39:53,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-13 00:39:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 416. [2021-10-13 00:39:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.002409638554217) internal successors, (416), 415 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 416 transitions. [2021-10-13 00:39:53,228 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 416 transitions. Word has length 410 [2021-10-13 00:39:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:39:53,229 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 416 transitions. [2021-10-13 00:39:53,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:39:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 416 transitions. [2021-10-13 00:39:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-10-13 00:39:53,233 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:39:53,233 INFO L512 BasicCegarLoop]: trace histogram [83, 82, 82, 82, 82, 1, 1, 1, 1] [2021-10-13 00:39:53,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-13 00:39:53,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-10-13 00:39:53,438 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:39:53,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:39:53,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1553639717, now seen corresponding path program 82 times [2021-10-13 00:39:53,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:39:53,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578754820] [2021-10-13 00:39:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:39:53,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:39:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:39:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:39:56,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:39:56,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578754820] [2021-10-13 00:39:56,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578754820] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:39:56,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924188464] [2021-10-13 00:39:56,088 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:39:56,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:39:56,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:39:56,089 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:39:56,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-13 00:40:01,466 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:40:01,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:40:01,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 84 conjunts are in the unsatisfiable core [2021-10-13 00:40:01,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:02,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:02,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924188464] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:02,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:02,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 84 [2021-10-13 00:40:02,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930958981] [2021-10-13 00:40:02,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2021-10-13 00:40:02,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:02,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-10-13 00:40:02,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-10-13 00:40:02,528 INFO L87 Difference]: Start difference. First operand 416 states and 416 transitions. Second operand has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:02,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:02,798 INFO L93 Difference]: Finished difference Result 423 states and 423 transitions. [2021-10-13 00:40:02,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-10-13 00:40:02,798 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 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 415 [2021-10-13 00:40:02,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:02,800 INFO L225 Difference]: With dead ends: 423 [2021-10-13 00:40:02,800 INFO L226 Difference]: Without dead ends: 422 [2021-10-13 00:40:02,801 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2314.8ms TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-10-13 00:40:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-10-13 00:40:02,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 421. [2021-10-13 00:40:02,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.0023809523809524) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:02,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2021-10-13 00:40:02,806 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 415 [2021-10-13 00:40:02,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:02,807 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2021-10-13 00:40:02,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2021-10-13 00:40:02,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-10-13 00:40:02,809 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:02,809 INFO L512 BasicCegarLoop]: trace histogram [84, 83, 83, 83, 83, 1, 1, 1, 1] [2021-10-13 00:40:02,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:03,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-10-13 00:40:03,010 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:03,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash 413356273, now seen corresponding path program 83 times [2021-10-13 00:40:03,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:03,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212130194] [2021-10-13 00:40:03,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:03,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:05,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:05,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212130194] [2021-10-13 00:40:05,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212130194] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:05,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925511404] [2021-10-13 00:40:05,790 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:40:05,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:05,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:05,792 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:05,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-10-13 00:40:11,473 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2021-10-13 00:40:11,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:40:11,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 85 conjunts are in the unsatisfiable core [2021-10-13 00:40:11,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:12,482 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:12,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925511404] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:12,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:12,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 85 [2021-10-13 00:40:12,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628818584] [2021-10-13 00:40:12,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2021-10-13 00:40:12,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:12,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-10-13 00:40:12,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-10-13 00:40:12,485 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:12,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:12,721 INFO L93 Difference]: Finished difference Result 428 states and 428 transitions. [2021-10-13 00:40:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-10-13 00:40:12,721 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 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 420 [2021-10-13 00:40:12,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:12,723 INFO L225 Difference]: With dead ends: 428 [2021-10-13 00:40:12,723 INFO L226 Difference]: Without dead ends: 427 [2021-10-13 00:40:12,724 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2475.6ms TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-10-13 00:40:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-10-13 00:40:12,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2021-10-13 00:40:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.0023529411764707) internal successors, (426), 425 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2021-10-13 00:40:12,729 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 420 [2021-10-13 00:40:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:12,729 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2021-10-13 00:40:12,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2021-10-13 00:40:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-10-13 00:40:12,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:12,732 INFO L512 BasicCegarLoop]: trace histogram [85, 84, 84, 84, 84, 1, 1, 1, 1] [2021-10-13 00:40:12,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:12,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:12,932 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:12,933 INFO L82 PathProgramCache]: Analyzing trace with hash -150493019, now seen corresponding path program 84 times [2021-10-13 00:40:12,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:12,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623847245] [2021-10-13 00:40:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:12,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:15,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:15,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623847245] [2021-10-13 00:40:15,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623847245] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:15,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324262262] [2021-10-13 00:40:15,850 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:40:15,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:15,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:15,852 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:15,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-10-13 00:40:21,940 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 85 check-sat command(s) [2021-10-13 00:40:21,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:40:21,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 86 conjunts are in the unsatisfiable core [2021-10-13 00:40:21,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:23,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324262262] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:23,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:23,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 86 [2021-10-13 00:40:23,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103792264] [2021-10-13 00:40:23,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-10-13 00:40:23,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:23,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-10-13 00:40:23,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-10-13 00:40:23,128 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:23,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:23,398 INFO L93 Difference]: Finished difference Result 433 states and 433 transitions. [2021-10-13 00:40:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-10-13 00:40:23,399 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 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 425 [2021-10-13 00:40:23,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:23,401 INFO L225 Difference]: With dead ends: 433 [2021-10-13 00:40:23,401 INFO L226 Difference]: Without dead ends: 432 [2021-10-13 00:40:23,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2499.8ms TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-10-13 00:40:23,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-10-13 00:40:23,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 431. [2021-10-13 00:40:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.0023255813953489) internal successors, (431), 430 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:23,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 431 transitions. [2021-10-13 00:40:23,408 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 431 transitions. Word has length 425 [2021-10-13 00:40:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:23,408 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 431 transitions. [2021-10-13 00:40:23,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 431 transitions. [2021-10-13 00:40:23,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-10-13 00:40:23,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:23,411 INFO L512 BasicCegarLoop]: trace histogram [86, 85, 85, 85, 85, 1, 1, 1, 1] [2021-10-13 00:40:23,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-10-13 00:40:23,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-10-13 00:40:23,611 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash 535429489, now seen corresponding path program 85 times [2021-10-13 00:40:23,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:23,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016920250] [2021-10-13 00:40:23,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:23,612 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:26,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:26,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016920250] [2021-10-13 00:40:26,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016920250] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:26,663 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044703361] [2021-10-13 00:40:26,663 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:40:26,663 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:26,664 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:26,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-10-13 00:40:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:32,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 87 conjunts are in the unsatisfiable core [2021-10-13 00:40:32,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:33,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044703361] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:33,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:33,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 87 [2021-10-13 00:40:33,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420484604] [2021-10-13 00:40:33,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2021-10-13 00:40:33,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:33,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-10-13 00:40:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-10-13 00:40:33,826 INFO L87 Difference]: Start difference. First operand 431 states and 431 transitions. Second operand has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:34,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:34,073 INFO L93 Difference]: Finished difference Result 438 states and 438 transitions. [2021-10-13 00:40:34,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-10-13 00:40:34,073 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 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 430 [2021-10-13 00:40:34,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:34,075 INFO L225 Difference]: With dead ends: 438 [2021-10-13 00:40:34,075 INFO L226 Difference]: Without dead ends: 437 [2021-10-13 00:40:34,076 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2701.2ms TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-10-13 00:40:34,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-10-13 00:40:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 436. [2021-10-13 00:40:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.0022988505747126) internal successors, (436), 435 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2021-10-13 00:40:34,099 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 430 [2021-10-13 00:40:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:34,100 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2021-10-13 00:40:34,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2021-10-13 00:40:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-10-13 00:40:34,102 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:34,102 INFO L512 BasicCegarLoop]: trace histogram [87, 86, 86, 86, 86, 1, 1, 1, 1] [2021-10-13 00:40:34,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-10-13 00:40:34,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:34,303 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:34,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1160034267, now seen corresponding path program 86 times [2021-10-13 00:40:34,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:34,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725804148] [2021-10-13 00:40:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:34,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:37,305 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:37,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:37,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725804148] [2021-10-13 00:40:37,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725804148] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:37,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955183388] [2021-10-13 00:40:37,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:40:37,306 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:37,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:37,307 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:37,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-10-13 00:40:43,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:40:43,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:40:43,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 88 conjunts are in the unsatisfiable core [2021-10-13 00:40:43,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:44,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:44,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955183388] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:44,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:44,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 88 [2021-10-13 00:40:44,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136376124] [2021-10-13 00:40:44,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-10-13 00:40:44,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:44,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-10-13 00:40:44,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-10-13 00:40:44,260 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:44,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:44,495 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2021-10-13 00:40:44,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-10-13 00:40:44,496 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 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 435 [2021-10-13 00:40:44,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:44,498 INFO L225 Difference]: With dead ends: 443 [2021-10-13 00:40:44,498 INFO L226 Difference]: Without dead ends: 442 [2021-10-13 00:40:44,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2663.8ms TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-10-13 00:40:44,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-10-13 00:40:44,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 441. [2021-10-13 00:40:44,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.0022727272727272) internal successors, (441), 440 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:44,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 441 transitions. [2021-10-13 00:40:44,503 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 441 transitions. Word has length 435 [2021-10-13 00:40:44,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:44,504 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 441 transitions. [2021-10-13 00:40:44,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:44,504 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 441 transitions. [2021-10-13 00:40:44,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-10-13 00:40:44,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:44,506 INFO L512 BasicCegarLoop]: trace histogram [88, 87, 87, 87, 87, 1, 1, 1, 1] [2021-10-13 00:40:44,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2021-10-13 00:40:44,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:44,707 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:44,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash -185724431, now seen corresponding path program 87 times [2021-10-13 00:40:44,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:44,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774755249] [2021-10-13 00:40:44,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:44,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:47,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:47,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774755249] [2021-10-13 00:40:47,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774755249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:47,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220009860] [2021-10-13 00:40:47,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:40:47,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:47,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:47,620 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:47,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-10-13 00:40:53,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 88 check-sat command(s) [2021-10-13 00:40:53,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:40:53,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 89 conjunts are in the unsatisfiable core [2021-10-13 00:40:53,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:40:54,779 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:54,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220009860] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:54,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:40:54,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 89 [2021-10-13 00:40:54,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001120649] [2021-10-13 00:40:54,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-10-13 00:40:54,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:40:54,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-10-13 00:40:54,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-10-13 00:40:54,782 INFO L87 Difference]: Start difference. First operand 441 states and 441 transitions. Second operand has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:55,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:40:55,021 INFO L93 Difference]: Finished difference Result 448 states and 448 transitions. [2021-10-13 00:40:55,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-10-13 00:40:55,021 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 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 440 [2021-10-13 00:40:55,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:40:55,023 INFO L225 Difference]: With dead ends: 448 [2021-10-13 00:40:55,023 INFO L226 Difference]: Without dead ends: 447 [2021-10-13 00:40:55,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2660.3ms TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-10-13 00:40:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-10-13 00:40:55,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2021-10-13 00:40:55,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.002247191011236) internal successors, (446), 445 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:55,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2021-10-13 00:40:55,029 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 440 [2021-10-13 00:40:55,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:40:55,029 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2021-10-13 00:40:55,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:40:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2021-10-13 00:40:55,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-10-13 00:40:55,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:40:55,031 INFO L512 BasicCegarLoop]: trace histogram [89, 88, 88, 88, 88, 1, 1, 1, 1] [2021-10-13 00:40:55,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2021-10-13 00:40:55,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:55,232 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:40:55,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:40:55,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1873967195, now seen corresponding path program 88 times [2021-10-13 00:40:55,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:40:55,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375116157] [2021-10-13 00:40:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:40:55,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:40:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:40:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:40:58,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:40:58,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375116157] [2021-10-13 00:40:58,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375116157] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:40:58,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542630049] [2021-10-13 00:40:58,406 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:40:58,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:40:58,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:40:58,407 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:40:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-10-13 00:41:04,884 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:41:04,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:41:04,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 90 conjunts are in the unsatisfiable core [2021-10-13 00:41:04,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:06,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542630049] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:06,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:41:06,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 90 [2021-10-13 00:41:06,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224927491] [2021-10-13 00:41:06,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-10-13 00:41:06,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:41:06,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-10-13 00:41:06,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-10-13 00:41:06,276 INFO L87 Difference]: Start difference. First operand 446 states and 446 transitions. Second operand has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:06,606 INFO L93 Difference]: Finished difference Result 453 states and 453 transitions. [2021-10-13 00:41:06,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-10-13 00:41:06,606 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 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 445 [2021-10-13 00:41:06,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:06,609 INFO L225 Difference]: With dead ends: 453 [2021-10-13 00:41:06,609 INFO L226 Difference]: Without dead ends: 452 [2021-10-13 00:41:06,609 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2850.2ms TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-10-13 00:41:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-10-13 00:41:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2021-10-13 00:41:06,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.0022222222222221) internal successors, (451), 450 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 451 transitions. [2021-10-13 00:41:06,615 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 451 transitions. Word has length 445 [2021-10-13 00:41:06,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:06,616 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 451 transitions. [2021-10-13 00:41:06,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:06,616 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 451 transitions. [2021-10-13 00:41:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-10-13 00:41:06,618 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:06,618 INFO L512 BasicCegarLoop]: trace histogram [90, 89, 89, 89, 89, 1, 1, 1, 1] [2021-10-13 00:41:06,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-10-13 00:41:06,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:06,819 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:41:06,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:06,819 INFO L82 PathProgramCache]: Analyzing trace with hash 309822065, now seen corresponding path program 89 times [2021-10-13 00:41:06,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:41:06,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283080975] [2021-10-13 00:41:06,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:06,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:41:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:10,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:41:10,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283080975] [2021-10-13 00:41:10,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283080975] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:10,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869306228] [2021-10-13 00:41:10,218 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:41:10,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:10,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:10,219 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:41:10,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-10-13 00:41:16,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2021-10-13 00:41:16,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:41:16,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 91 conjunts are in the unsatisfiable core [2021-10-13 00:41:16,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:18,118 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:18,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869306228] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:18,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:41:18,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 91 [2021-10-13 00:41:18,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955372161] [2021-10-13 00:41:18,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-10-13 00:41:18,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:41:18,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-10-13 00:41:18,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-10-13 00:41:18,120 INFO L87 Difference]: Start difference. First operand 451 states and 451 transitions. Second operand has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:18,414 INFO L93 Difference]: Finished difference Result 458 states and 458 transitions. [2021-10-13 00:41:18,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-10-13 00:41:18,414 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 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 450 [2021-10-13 00:41:18,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:18,416 INFO L225 Difference]: With dead ends: 458 [2021-10-13 00:41:18,416 INFO L226 Difference]: Without dead ends: 457 [2021-10-13 00:41:18,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3098.4ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-10-13 00:41:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-10-13 00:41:18,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2021-10-13 00:41:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.0021978021978022) internal successors, (456), 455 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:18,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 456 transitions. [2021-10-13 00:41:18,422 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 456 transitions. Word has length 450 [2021-10-13 00:41:18,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:18,422 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 456 transitions. [2021-10-13 00:41:18,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:18,422 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 456 transitions. [2021-10-13 00:41:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-10-13 00:41:18,424 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:18,425 INFO L512 BasicCegarLoop]: trace histogram [91, 90, 90, 90, 90, 1, 1, 1, 1] [2021-10-13 00:41:18,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Forceful destruction successful, exit code 0 [2021-10-13 00:41:18,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:18,630 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:41:18,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:18,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2039899941, now seen corresponding path program 90 times [2021-10-13 00:41:18,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:41:18,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510015229] [2021-10-13 00:41:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:18,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:41:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:21,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:41:21,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510015229] [2021-10-13 00:41:21,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510015229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:21,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432566131] [2021-10-13 00:41:21,847 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:41:21,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:21,848 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:41:21,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-10-13 00:41:28,684 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 91 check-sat command(s) [2021-10-13 00:41:28,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:41:28,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 92 conjunts are in the unsatisfiable core [2021-10-13 00:41:28,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:29,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432566131] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:29,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:41:29,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 92 [2021-10-13 00:41:29,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320789401] [2021-10-13 00:41:29,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-10-13 00:41:29,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:41:29,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-10-13 00:41:29,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-10-13 00:41:29,987 INFO L87 Difference]: Start difference. First operand 456 states and 456 transitions. Second operand has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:30,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:30,314 INFO L93 Difference]: Finished difference Result 463 states and 463 transitions. [2021-10-13 00:41:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-13 00:41:30,315 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 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 455 [2021-10-13 00:41:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:30,317 INFO L225 Difference]: With dead ends: 463 [2021-10-13 00:41:30,317 INFO L226 Difference]: Without dead ends: 462 [2021-10-13 00:41:30,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2787.6ms TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-10-13 00:41:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-10-13 00:41:30,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2021-10-13 00:41:30,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.0021739130434784) internal successors, (461), 460 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:30,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2021-10-13 00:41:30,326 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 455 [2021-10-13 00:41:30,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:30,327 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2021-10-13 00:41:30,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:30,327 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2021-10-13 00:41:30,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-10-13 00:41:30,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:30,331 INFO L512 BasicCegarLoop]: trace histogram [92, 91, 91, 91, 91, 1, 1, 1, 1] [2021-10-13 00:41:30,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2021-10-13 00:41:30,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:30,531 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:41:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:30,532 INFO L82 PathProgramCache]: Analyzing trace with hash 424563441, now seen corresponding path program 91 times [2021-10-13 00:41:30,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:41:30,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029291860] [2021-10-13 00:41:30,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:30,532 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:41:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:33,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:41:33,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029291860] [2021-10-13 00:41:33,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029291860] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:33,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948749721] [2021-10-13 00:41:33,892 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:41:33,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:33,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:33,893 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:41:33,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-10-13 00:41:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:40,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 93 conjunts are in the unsatisfiable core [2021-10-13 00:41:40,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:42,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948749721] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:42,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:41:42,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 93 [2021-10-13 00:41:42,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677565001] [2021-10-13 00:41:42,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-10-13 00:41:42,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:41:42,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-10-13 00:41:42,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-10-13 00:41:42,123 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:42,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:42,439 INFO L93 Difference]: Finished difference Result 468 states and 468 transitions. [2021-10-13 00:41:42,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-10-13 00:41:42,439 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 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 460 [2021-10-13 00:41:42,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:42,442 INFO L225 Difference]: With dead ends: 468 [2021-10-13 00:41:42,442 INFO L226 Difference]: Without dead ends: 467 [2021-10-13 00:41:42,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2985.4ms TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-10-13 00:41:42,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-10-13 00:41:42,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 466. [2021-10-13 00:41:42,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 1.0021505376344086) internal successors, (466), 465 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 466 transitions. [2021-10-13 00:41:42,450 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 466 transitions. Word has length 460 [2021-10-13 00:41:42,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:42,450 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 466 transitions. [2021-10-13 00:41:42,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 466 transitions. [2021-10-13 00:41:42,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-10-13 00:41:42,454 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:42,454 INFO L512 BasicCegarLoop]: trace histogram [93, 92, 92, 92, 92, 1, 1, 1, 1] [2021-10-13 00:41:42,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2021-10-13 00:41:42,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:42,655 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:41:42,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 317580965, now seen corresponding path program 92 times [2021-10-13 00:41:42,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:41:42,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094953449] [2021-10-13 00:41:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:42,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:41:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:46,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:41:46,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094953449] [2021-10-13 00:41:46,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094953449] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:46,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590257802] [2021-10-13 00:41:46,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:41:46,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:46,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:46,216 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:41:46,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-10-13 00:41:53,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:41:53,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:41:53,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 94 conjunts are in the unsatisfiable core [2021-10-13 00:41:53,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:41:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:54,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590257802] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:54,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:41:54,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 94 [2021-10-13 00:41:54,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337701514] [2021-10-13 00:41:54,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2021-10-13 00:41:54,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:41:54,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-10-13 00:41:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-10-13 00:41:54,822 INFO L87 Difference]: Start difference. First operand 466 states and 466 transitions. Second operand has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:41:55,186 INFO L93 Difference]: Finished difference Result 473 states and 473 transitions. [2021-10-13 00:41:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-10-13 00:41:55,187 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 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 465 [2021-10-13 00:41:55,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:41:55,189 INFO L225 Difference]: With dead ends: 473 [2021-10-13 00:41:55,189 INFO L226 Difference]: Without dead ends: 472 [2021-10-13 00:41:55,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3244.2ms TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-10-13 00:41:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-10-13 00:41:55,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2021-10-13 00:41:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.0021276595744681) internal successors, (471), 470 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:55,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 471 transitions. [2021-10-13 00:41:55,198 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 471 transitions. Word has length 465 [2021-10-13 00:41:55,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:41:55,198 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 471 transitions. [2021-10-13 00:41:55,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:41:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 471 transitions. [2021-10-13 00:41:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-10-13 00:41:55,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:41:55,201 INFO L512 BasicCegarLoop]: trace histogram [94, 93, 93, 93, 93, 1, 1, 1, 1] [2021-10-13 00:41:55,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-10-13 00:41:55,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:55,402 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:41:55,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:41:55,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1346012017, now seen corresponding path program 93 times [2021-10-13 00:41:55,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:41:55,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388239284] [2021-10-13 00:41:55,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:41:55,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:41:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:41:58,971 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:41:58,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:41:58,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388239284] [2021-10-13 00:41:58,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388239284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:41:58,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277017758] [2021-10-13 00:41:58,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:41:58,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:41:58,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:41:58,976 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:41:58,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-13 00:42:06,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2021-10-13 00:42:06,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:42:06,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 95 conjunts are in the unsatisfiable core [2021-10-13 00:42:06,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:42:07,855 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:07,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277017758] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:07,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:42:07,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 95 [2021-10-13 00:42:07,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051997231] [2021-10-13 00:42:07,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-10-13 00:42:07,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:42:07,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-10-13 00:42:07,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-10-13 00:42:07,859 INFO L87 Difference]: Start difference. First operand 471 states and 471 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:42:08,193 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2021-10-13 00:42:08,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-10-13 00:42:08,194 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 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 470 [2021-10-13 00:42:08,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:42:08,196 INFO L225 Difference]: With dead ends: 478 [2021-10-13 00:42:08,196 INFO L226 Difference]: Without dead ends: 477 [2021-10-13 00:42:08,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3246.0ms TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-10-13 00:42:08,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-10-13 00:42:08,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2021-10-13 00:42:08,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.0021052631578948) internal successors, (476), 475 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:08,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 476 transitions. [2021-10-13 00:42:08,203 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 476 transitions. Word has length 470 [2021-10-13 00:42:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:42:08,203 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 476 transitions. [2021-10-13 00:42:08,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:08,203 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 476 transitions. [2021-10-13 00:42:08,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-10-13 00:42:08,205 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:42:08,206 INFO L512 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1] [2021-10-13 00:42:08,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-10-13 00:42:08,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:08,406 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:42:08,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:42:08,407 INFO L82 PathProgramCache]: Analyzing trace with hash 311166501, now seen corresponding path program 94 times [2021-10-13 00:42:08,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:42:08,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977702459] [2021-10-13 00:42:08,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:42:08,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:42:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:42:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:12,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:42:12,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977702459] [2021-10-13 00:42:12,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977702459] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:12,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414007634] [2021-10-13 00:42:12,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:42:12,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:12,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:42:12,056 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:42:12,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-13 00:42:19,507 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:42:19,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:42:19,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 96 conjunts are in the unsatisfiable core [2021-10-13 00:42:19,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:42:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:21,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414007634] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:21,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:42:21,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 96 [2021-10-13 00:42:21,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725710736] [2021-10-13 00:42:21,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-10-13 00:42:21,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:42:21,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-10-13 00:42:21,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-10-13 00:42:21,032 INFO L87 Difference]: Start difference. First operand 476 states and 476 transitions. Second operand has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:21,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:42:21,367 INFO L93 Difference]: Finished difference Result 483 states and 483 transitions. [2021-10-13 00:42:21,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-10-13 00:42:21,367 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 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 475 [2021-10-13 00:42:21,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:42:21,370 INFO L225 Difference]: With dead ends: 483 [2021-10-13 00:42:21,370 INFO L226 Difference]: Without dead ends: 482 [2021-10-13 00:42:21,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3229.5ms TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-10-13 00:42:21,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-10-13 00:42:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 481. [2021-10-13 00:42:21,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.0020833333333334) internal successors, (481), 480 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 481 transitions. [2021-10-13 00:42:21,378 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 481 transitions. Word has length 475 [2021-10-13 00:42:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:42:21,378 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 481 transitions. [2021-10-13 00:42:21,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 481 transitions. [2021-10-13 00:42:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-10-13 00:42:21,381 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:42:21,381 INFO L512 BasicCegarLoop]: trace histogram [96, 95, 95, 95, 95, 1, 1, 1, 1] [2021-10-13 00:42:21,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-10-13 00:42:21,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-10-13 00:42:21,582 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:42:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:42:21,582 INFO L82 PathProgramCache]: Analyzing trace with hash 604247025, now seen corresponding path program 95 times [2021-10-13 00:42:21,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:42:21,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527321916] [2021-10-13 00:42:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:42:21,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:42:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:42:25,549 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:25,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:42:25,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527321916] [2021-10-13 00:42:25,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527321916] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:25,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793637941] [2021-10-13 00:42:25,549 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:42:25,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:25,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:42:25,550 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:42:25,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-13 00:42:33,718 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 96 check-sat command(s) [2021-10-13 00:42:33,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:42:33,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 97 conjunts are in the unsatisfiable core [2021-10-13 00:42:33,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:42:35,203 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:35,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793637941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:35,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:42:35,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 97 [2021-10-13 00:42:35,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757904304] [2021-10-13 00:42:35,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-10-13 00:42:35,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:42:35,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-10-13 00:42:35,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-10-13 00:42:35,208 INFO L87 Difference]: Start difference. First operand 481 states and 481 transitions. Second operand has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:35,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:42:35,586 INFO L93 Difference]: Finished difference Result 488 states and 488 transitions. [2021-10-13 00:42:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-10-13 00:42:35,586 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 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 480 [2021-10-13 00:42:35,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:42:35,589 INFO L225 Difference]: With dead ends: 488 [2021-10-13 00:42:35,589 INFO L226 Difference]: Without dead ends: 487 [2021-10-13 00:42:35,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3540.8ms TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-10-13 00:42:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-10-13 00:42:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 486. [2021-10-13 00:42:35,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.002061855670103) internal successors, (486), 485 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:35,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 486 transitions. [2021-10-13 00:42:35,602 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 486 transitions. Word has length 480 [2021-10-13 00:42:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:42:35,602 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 486 transitions. [2021-10-13 00:42:35,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:35,602 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 486 transitions. [2021-10-13 00:42:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-10-13 00:42:35,606 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:42:35,606 INFO L512 BasicCegarLoop]: trace histogram [97, 96, 96, 96, 96, 1, 1, 1, 1] [2021-10-13 00:42:35,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2021-10-13 00:42:35,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:35,810 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:42:35,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:42:35,811 INFO L82 PathProgramCache]: Analyzing trace with hash -928463451, now seen corresponding path program 96 times [2021-10-13 00:42:35,811 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:42:35,811 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47021708] [2021-10-13 00:42:35,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:42:35,811 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:42:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:42:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:39,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:42:39,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47021708] [2021-10-13 00:42:39,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47021708] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:39,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700786382] [2021-10-13 00:42:39,622 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-13 00:42:39,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:39,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:42:39,632 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:42:39,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-13 00:42:47,597 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2021-10-13 00:42:47,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:42:47,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 98 conjunts are in the unsatisfiable core [2021-10-13 00:42:47,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:42:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:48,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700786382] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:48,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:42:48,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 98 [2021-10-13 00:42:48,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260777382] [2021-10-13 00:42:48,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-10-13 00:42:48,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:42:48,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-10-13 00:42:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-10-13 00:42:48,903 INFO L87 Difference]: Start difference. First operand 486 states and 486 transitions. Second operand has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:49,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:42:49,240 INFO L93 Difference]: Finished difference Result 493 states and 493 transitions. [2021-10-13 00:42:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-10-13 00:42:49,240 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 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 485 [2021-10-13 00:42:49,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:42:49,242 INFO L225 Difference]: With dead ends: 493 [2021-10-13 00:42:49,242 INFO L226 Difference]: Without dead ends: 492 [2021-10-13 00:42:49,244 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3409.8ms TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-10-13 00:42:49,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-10-13 00:42:49,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2021-10-13 00:42:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.0020408163265306) internal successors, (491), 490 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 491 transitions. [2021-10-13 00:42:49,252 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 491 transitions. Word has length 485 [2021-10-13 00:42:49,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:42:49,253 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 491 transitions. [2021-10-13 00:42:49,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:42:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 491 transitions. [2021-10-13 00:42:49,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-10-13 00:42:49,256 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:42:49,256 INFO L512 BasicCegarLoop]: trace histogram [98, 97, 97, 97, 97, 1, 1, 1, 1] [2021-10-13 00:42:49,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2021-10-13 00:42:49,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-13 00:42:49,456 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:42:49,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:42:49,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1485634447, now seen corresponding path program 97 times [2021-10-13 00:42:49,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:42:49,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060713424] [2021-10-13 00:42:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:42:49,457 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:42:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:42:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:42:53,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:42:53,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060713424] [2021-10-13 00:42:53,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060713424] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:42:53,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955161760] [2021-10-13 00:42:53,173 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:42:53,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:42:53,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:42:53,174 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:42:53,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-13 00:43:00,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:00,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 99 conjunts are in the unsatisfiable core [2021-10-13 00:43:00,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:01,910 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:01,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955161760] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:01,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:43:01,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 99 [2021-10-13 00:43:01,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093031158] [2021-10-13 00:43:01,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-10-13 00:43:01,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-10-13 00:43:01,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-10-13 00:43:01,913 INFO L87 Difference]: Start difference. First operand 491 states and 491 transitions. Second operand has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:02,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:02,254 INFO L93 Difference]: Finished difference Result 498 states and 498 transitions. [2021-10-13 00:43:02,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-10-13 00:43:02,255 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 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 490 [2021-10-13 00:43:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:02,257 INFO L225 Difference]: With dead ends: 498 [2021-10-13 00:43:02,257 INFO L226 Difference]: Without dead ends: 497 [2021-10-13 00:43:02,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3384.8ms TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-10-13 00:43:02,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-10-13 00:43:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2021-10-13 00:43:02,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 1.002020202020202) internal successors, (496), 495 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:02,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2021-10-13 00:43:02,266 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 490 [2021-10-13 00:43:02,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:02,266 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2021-10-13 00:43:02,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:02,267 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2021-10-13 00:43:02,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-10-13 00:43:02,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:02,270 INFO L512 BasicCegarLoop]: trace histogram [99, 98, 98, 98, 98, 1, 1, 1, 1] [2021-10-13 00:43:02,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:02,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-10-13 00:43:02,470 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:43:02,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1619253979, now seen corresponding path program 98 times [2021-10-13 00:43:02,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:02,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824620471] [2021-10-13 00:43:02,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:02,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:06,616 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:06,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:06,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824620471] [2021-10-13 00:43:06,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824620471] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:06,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394654272] [2021-10-13 00:43:06,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 00:43:06,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:06,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:06,618 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:06,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-13 00:43:15,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 00:43:15,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:43:15,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 100 conjunts are in the unsatisfiable core [2021-10-13 00:43:15,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:17,127 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:17,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394654272] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:17,128 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:43:17,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 100 [2021-10-13 00:43:17,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941104299] [2021-10-13 00:43:17,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2021-10-13 00:43:17,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:17,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-10-13 00:43:17,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-10-13 00:43:17,131 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:17,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:17,502 INFO L93 Difference]: Finished difference Result 503 states and 503 transitions. [2021-10-13 00:43:17,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-10-13 00:43:17,502 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 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 495 [2021-10-13 00:43:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:17,503 INFO L225 Difference]: With dead ends: 503 [2021-10-13 00:43:17,504 INFO L226 Difference]: Without dead ends: 502 [2021-10-13 00:43:17,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3772.1ms TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-10-13 00:43:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-13 00:43:17,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 501. [2021-10-13 00:43:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.002) internal successors, (501), 500 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 501 transitions. [2021-10-13 00:43:17,515 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 501 transitions. Word has length 495 [2021-10-13 00:43:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:17,515 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 501 transitions. [2021-10-13 00:43:17,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 501 transitions. [2021-10-13 00:43:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-10-13 00:43:17,519 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:17,520 INFO L512 BasicCegarLoop]: trace histogram [100, 99, 99, 99, 99, 1, 1, 1, 1] [2021-10-13 00:43:17,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-13 00:43:17,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-10-13 00:43:17,734 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:43:17,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:17,735 INFO L82 PathProgramCache]: Analyzing trace with hash 323966193, now seen corresponding path program 99 times [2021-10-13 00:43:17,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:17,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304010829] [2021-10-13 00:43:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:17,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:21,921 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:21,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:21,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304010829] [2021-10-13 00:43:21,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304010829] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:21,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722554324] [2021-10-13 00:43:21,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 00:43:21,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:21,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:21,924 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-10-13 00:43:30,617 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-10-13 00:43:30,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:43:30,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 101 conjunts are in the unsatisfiable core [2021-10-13 00:43:30,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:32,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722554324] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:32,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:43:32,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 101 [2021-10-13 00:43:32,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481140294] [2021-10-13 00:43:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2021-10-13 00:43:32,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-10-13 00:43:32,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-10-13 00:43:32,051 INFO L87 Difference]: Start difference. First operand 501 states and 501 transitions. Second operand has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:32,399 INFO L93 Difference]: Finished difference Result 508 states and 508 transitions. [2021-10-13 00:43:32,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-10-13 00:43:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 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 500 [2021-10-13 00:43:32,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:32,401 INFO L225 Difference]: With dead ends: 508 [2021-10-13 00:43:32,401 INFO L226 Difference]: Without dead ends: 507 [2021-10-13 00:43:32,401 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3816.3ms TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-10-13 00:43:32,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-10-13 00:43:32,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2021-10-13 00:43:32,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.001980198019802) internal successors, (506), 505 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 506 transitions. [2021-10-13 00:43:32,407 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 506 transitions. Word has length 500 [2021-10-13 00:43:32,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:32,407 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 506 transitions. [2021-10-13 00:43:32,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 506 transitions. [2021-10-13 00:43:32,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-10-13 00:43:32,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:32,410 INFO L512 BasicCegarLoop]: trace histogram [101, 100, 100, 100, 100, 1, 1, 1, 1] [2021-10-13 00:43:32,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2021-10-13 00:43:32,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-10-13 00:43:32,610 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:43:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:32,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1690426203, now seen corresponding path program 100 times [2021-10-13 00:43:32,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:32,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921701280] [2021-10-13 00:43:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:32,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:36,968 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:36,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:36,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921701280] [2021-10-13 00:43:36,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921701280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:36,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051213855] [2021-10-13 00:43:36,968 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 00:43:36,969 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:36,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:36,969 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:36,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-10-13 00:43:45,470 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 00:43:45,470 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:43:45,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 102 conjunts are in the unsatisfiable core [2021-10-13 00:43:45,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:43:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:46,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051213855] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:46,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:43:46,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 102 [2021-10-13 00:43:46,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106341600] [2021-10-13 00:43:46,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-10-13 00:43:46,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:43:46,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-10-13 00:43:46,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-10-13 00:43:46,865 INFO L87 Difference]: Start difference. First operand 506 states and 506 transitions. Second operand has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:43:47,268 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2021-10-13 00:43:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-10-13 00:43:47,268 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 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 505 [2021-10-13 00:43:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:43:47,269 INFO L225 Difference]: With dead ends: 513 [2021-10-13 00:43:47,269 INFO L226 Difference]: Without dead ends: 512 [2021-10-13 00:43:47,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3820.7ms TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-10-13 00:43:47,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-10-13 00:43:47,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2021-10-13 00:43:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.0019607843137255) internal successors, (511), 510 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 511 transitions. [2021-10-13 00:43:47,276 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 511 transitions. Word has length 505 [2021-10-13 00:43:47,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:43:47,276 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 511 transitions. [2021-10-13 00:43:47,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:43:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 511 transitions. [2021-10-13 00:43:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-10-13 00:43:47,278 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:43:47,279 INFO L512 BasicCegarLoop]: trace histogram [102, 101, 101, 101, 101, 1, 1, 1, 1] [2021-10-13 00:43:47,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2021-10-13 00:43:47,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:47,479 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-10-13 00:43:47,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:43:47,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1180763505, now seen corresponding path program 101 times [2021-10-13 00:43:47,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:43:47,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676644739] [2021-10-13 00:43:47,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:43:47,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:43:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:43:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 0 proven. 25452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:43:51,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:43:51,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676644739] [2021-10-13 00:43:51,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676644739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:43:51,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177499670] [2021-10-13 00:43:51,537 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:43:51,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:43:51,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:43:51,538 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:43:51,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-10-13 00:44:00,305 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2021-10-13 00:44:00,305 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:44:00,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 202 conjunts are in the unsatisfiable core [2021-10-13 00:44:00,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:44:21,267 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 25451 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:44:21,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177499670] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:44:21,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 00:44:21,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [103] total 305 [2021-10-13 00:44:21,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117762093] [2021-10-13 00:44:21,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2021-10-13 00:44:21,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:44:21,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2021-10-13 00:44:21,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15758, Invalid=76962, Unknown=0, NotChecked=0, Total=92720 [2021-10-13 00:44:21,275 INFO L87 Difference]: Start difference. First operand 511 states and 511 transitions. Second operand has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:44:31,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:44:31,453 INFO L93 Difference]: Finished difference Result 511 states and 511 transitions. [2021-10-13 00:44:31,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-10-13 00:44:31,454 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 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 510 [2021-10-13 00:44:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:44:31,455 INFO L225 Difference]: With dead ends: 511 [2021-10-13 00:44:31,455 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:44:31,465 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 403 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40002 ImplicationChecksByTransitivity, 29435.6ms TimeCoverageRelationStatistics Valid=31008, Invalid=132612, Unknown=0, NotChecked=0, Total=163620 [2021-10-13 00:44:31,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:44:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:44:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:44:31,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:44:31,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 510 [2021-10-13 00:44:31,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:44:31,466 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:44:31,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:44:31,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:44:31,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:44:31,470 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:44:31,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:44:31,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:44:31,471 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 00:44:31,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2021-10-13 00:44:31,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:44:31,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:44:31,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:44:31,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:44:34,556 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-13 00:44:34,556 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:44:34,556 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-13 00:44:34,556 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-10-13 00:44:34,557 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-10-13 00:44:34,558 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~j~0))) (or (and (<= 41 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 82) .cse0) (and (<= 45 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 90) .cse0) (and (<= ULTIMATE.start_main_~j~0 172) (<= 86 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 198) (<= 99 ULTIMATE.start_main_~i~0) .cse0) (and (<= 38 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 76) .cse0) (and (<= 88 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 176) .cse0) (and (<= ULTIMATE.start_main_~j~0 180) (<= 90 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 116) (<= 58 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 168) (<= 84 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 92) .cse0 (<= 46 ULTIMATE.start_main_~i~0)) (and (<= 6 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 12) .cse0) (and (<= 66 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 132) .cse0) (and (<= ULTIMATE.start_main_~j~0 100) (<= 50 ULTIMATE.start_main_~i~0) .cse0) (and (<= 75 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 150) .cse0) (and (<= ULTIMATE.start_main_~j~0 138) (<= 69 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 156) (<= 78 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 108) (<= 54 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 20) (<= 10 ULTIMATE.start_main_~i~0) .cse0) (and (<= 27 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 54) .cse0) (and (<= ULTIMATE.start_main_~j~0 188) (<= 94 ULTIMATE.start_main_~i~0) .cse0) (and (<= 49 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 98) .cse0) (and (<= ULTIMATE.start_main_~j~0 128) (<= 64 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 152) (<= 76 ULTIMATE.start_main_~i~0) .cse0) (and (<= 59 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 118) .cse0) (and (<= 34 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 68) .cse0) (and (<= ULTIMATE.start_main_~j~0 38) (<= 19 ULTIMATE.start_main_~i~0) .cse0) (and (<= 87 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 174) .cse0) (and (<= ULTIMATE.start_main_~j~0 104) (<= 52 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 58) (<= 29 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 96) (<= 48 ULTIMATE.start_main_~i~0) .cse0) (and (<= 56 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 112) .cse0) (and .cse0 (<= ULTIMATE.start_main_~j~0 192) (<= 96 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 102) (<= 51 ULTIMATE.start_main_~i~0) .cse0) (and (<= 5 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 10) .cse0) (and (<= 65 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 130) .cse0) (and (<= ULTIMATE.start_main_~j~0 88) (<= 44 ULTIMATE.start_main_~i~0) .cse0) (and (<= 77 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 154) .cse0) (and (<= ULTIMATE.start_main_~j~0 64) .cse0 (<= 32 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 66) (<= 33 ULTIMATE.start_main_~i~0) .cse0) (and (<= 36 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 72) .cse0) (and (<= ULTIMATE.start_main_~j~0 44) (<= 22 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 0) (= ULTIMATE.start_main_~i~0 0) .cse0) (and (<= 28 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 56) .cse0) (and (<= ULTIMATE.start_main_~j~0 32) .cse0 (<= 16 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 22) (<= 11 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 178) (<= 89 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 52) (<= 26 ULTIMATE.start_main_~i~0) .cse0) (and (<= 8 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 16) .cse0) (and (<= ULTIMATE.start_main_~j~0 86) (<= 43 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 80) (<= 40 ULTIMATE.start_main_~i~0) .cse0) (and (<= 39 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 78) .cse0) (and (<= 70 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 140) .cse0) (and (<= ULTIMATE.start_main_~j~0 186) (<= 93 ULTIMATE.start_main_~i~0) .cse0) (and (<= 4 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 8) .cse0) (and (<= 14 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 28) .cse0) (and (<= 81 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 162) .cse0) (and (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 2) .cse0) (and (<= 60 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 120) .cse0) (and (<= ULTIMATE.start_main_~j~0 46) (<= 23 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 122) (<= 61 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 194) (<= 97 ULTIMATE.start_main_~i~0) .cse0) (and (<= 98 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 196)) (and (<= 57 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 114) .cse0) (and (<= ULTIMATE.start_main_~j~0 110) (<= 55 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 144) (<= 72 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 84) (<= 42 ULTIMATE.start_main_~i~0) .cse0) (and (<= 3 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 6) .cse0) (and (<= 30 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 60) .cse0) (and (<= ULTIMATE.start_main_~j~0 62) (<= 31 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 24) (<= 12 ULTIMATE.start_main_~i~0) .cse0) (and (<= 73 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 146) .cse0) (and (<= 15 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 30) .cse0) (and (<= 79 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 158) .cse0) (and (<= ULTIMATE.start_main_~j~0 42) (<= 21 ULTIMATE.start_main_~i~0) .cse0) (and (<= 82 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 164) .cse0) (and (<= ULTIMATE.start_main_~j~0 106) (<= 53 ULTIMATE.start_main_~i~0) .cse0) (and (<= 91 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 182) .cse0) (and (<= ULTIMATE.start_main_~j~0 184) (<= 92 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 126) (<= 63 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 74) (<= 37 ULTIMATE.start_main_~i~0) .cse0) (and (<= 47 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 94) .cse0) (and (<= 9 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 18) .cse0) (and (<= 62 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 124) .cse0) (and (<= ULTIMATE.start_main_~j~0 142) (<= 71 ULTIMATE.start_main_~i~0) .cse0) (and (<= 95 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 190) .cse0) (and (<= 100 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 200) .cse0) (and (<= 80 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 160) .cse0) (and (<= ULTIMATE.start_main_~j~0 26) (<= 13 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 14) (<= 7 ULTIMATE.start_main_~i~0) .cse0) (and (<= 83 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 166) .cse0) (and (<= ULTIMATE.start_main_~j~0 170) (<= 85 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 34) (<= 17 ULTIMATE.start_main_~i~0) .cse0) (and (<= 2 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 4) .cse0) (and (<= 68 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 136)) (and (<= ULTIMATE.start_main_~j~0 148) (<= 74 ULTIMATE.start_main_~i~0) .cse0) (and (<= 20 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 40) .cse0) (and (<= ULTIMATE.start_main_~j~0 70) (<= 35 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 48) (<= 24 ULTIMATE.start_main_~i~0) .cse0) (and (<= 67 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 134) .cse0) (and (<= 18 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 36) .cse0) (and (<= ULTIMATE.start_main_~j~0 50) (<= 25 ULTIMATE.start_main_~i~0) .cse0))) [2021-10-13 00:44:34,558 INFO L857 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-10-13 00:44:34,558 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:44:34,559 INFO L860 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-10-13 00:44:34,560 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-13 00:44:34,560 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-10-13 00:44:34,560 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-10-13 00:44:34,560 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-10-13 00:44:34,565 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:44:34,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:44:34 BoogieIcfgContainer [2021-10-13 00:44:34,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:44:34,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:44:34,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:44:34,622 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:44:34,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:34:45" (3/4) ... [2021-10-13 00:44:34,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:44:34,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:44:34,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:44:34,637 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:44:34,637 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:44:34,673 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:44:34,674 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:44:34,676 INFO L168 Benchmark]: Toolchain (without parser) took 589442.96 ms. Allocated memory was 111.1 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 77.8 MB in the beginning and 566.2 MB in the end (delta: -488.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,677 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 82.3 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:34,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.99 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 88.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,678 INFO L168 Benchmark]: Boogie Preprocessor took 20.88 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 86.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:44:34,680 INFO L168 Benchmark]: RCFGBuilder took 361.29 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 76.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,681 INFO L168 Benchmark]: TraceAbstraction took 588685.44 ms. Allocated memory was 111.1 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 76.3 MB in the beginning and 569.3 MB in the end (delta: -493.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,681 INFO L168 Benchmark]: Witness Printer took 52.09 ms. Allocated memory is still 3.1 GB. Free memory was 569.3 MB in the beginning and 566.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:44:34,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 82.3 MB in the end (delta: 30.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.99 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 88.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 111.1 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.88 ms. Allocated memory is still 111.1 MB. Free memory was 87.3 MB in the beginning and 86.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 361.29 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 76.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 588685.44 ms. Allocated memory was 111.1 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 76.3 MB in the beginning and 569.3 MB in the end (delta: -493.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 16.1 GB. * Witness Printer took 52.09 ms. Allocated memory is still 3.1 GB. Free memory was 569.3 MB in the beginning and 566.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 588549.1ms, OverallIterations: 106, TraceHistogramMax: 102, EmptinessCheckTime: 195.2ms, AutomataDifference: 27297.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2873.2ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 848 SDtfs, 5377 SDslu, 16858 SDs, 0 SdLazy, 15298 SolverSat, 418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9536.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31644 GetRequests, 26075 SyntacticMatches, 0 SemanticMatches, 5569 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40003 ImplicationChecksByTransitivity, 155716.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=105, InterpolantAutomatonStates: 5573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 774.9ms AutomataMinimizationTime, 106 MinimizatonAttempts, 101 StatesRemovedByMinimization, 101 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 105 NumberOfFragments, 1012 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 298.4ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 303 FormulaSimplificationTreeSizeReductionInter, 2554.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1766.5ms SsaConstructionTime, 15731.4ms SatisfiabilityAnalysisTime, 234068.7ms InterpolantComputationTime, 52576 NumberOfCodeBlocks, 52576 NumberOfCodeBlocksAsserted, 2826 NumberOfCheckSat, 52368 ConstructedInterpolants, 0 QuantifiedInterpolants, 156248 SizeOfPredicates, 102 NumberOfNonLiveVariables, 60657 ConjunctsInSsa, 5457 ConjunctsInUnsatCore, 208 InterpolantComputations, 6 PerfectInterpolantSequences, 25461/1737618 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((41 <= i && j <= 82) && 0 <= j) || ((45 <= i && j <= 90) && 0 <= j)) || ((j <= 172 && 86 <= i) && 0 <= j)) || ((j <= 198 && 99 <= i) && 0 <= j)) || ((38 <= i && j <= 76) && 0 <= j)) || ((88 <= i && j <= 176) && 0 <= j)) || ((j <= 180 && 90 <= i) && 0 <= j)) || ((j <= 116 && 58 <= i) && 0 <= j)) || ((j <= 168 && 84 <= i) && 0 <= j)) || ((j <= 92 && 0 <= j) && 46 <= i)) || ((6 <= i && j <= 12) && 0 <= j)) || ((66 <= i && j <= 132) && 0 <= j)) || ((j <= 100 && 50 <= i) && 0 <= j)) || ((75 <= i && j <= 150) && 0 <= j)) || ((j <= 138 && 69 <= i) && 0 <= j)) || ((j <= 156 && 78 <= i) && 0 <= j)) || ((j <= 108 && 54 <= i) && 0 <= j)) || ((j <= 20 && 10 <= i) && 0 <= j)) || ((27 <= i && j <= 54) && 0 <= j)) || ((j <= 188 && 94 <= i) && 0 <= j)) || ((49 <= i && j <= 98) && 0 <= j)) || ((j <= 128 && 64 <= i) && 0 <= j)) || ((j <= 152 && 76 <= i) && 0 <= j)) || ((59 <= i && j <= 118) && 0 <= j)) || ((34 <= i && j <= 68) && 0 <= j)) || ((j <= 38 && 19 <= i) && 0 <= j)) || ((87 <= i && j <= 174) && 0 <= j)) || ((j <= 104 && 52 <= i) && 0 <= j)) || ((j <= 58 && 29 <= i) && 0 <= j)) || ((j <= 96 && 48 <= i) && 0 <= j)) || ((56 <= i && j <= 112) && 0 <= j)) || ((0 <= j && j <= 192) && 96 <= i)) || ((j <= 102 && 51 <= i) && 0 <= j)) || ((5 <= i && j <= 10) && 0 <= j)) || ((65 <= i && j <= 130) && 0 <= j)) || ((j <= 88 && 44 <= i) && 0 <= j)) || ((77 <= i && j <= 154) && 0 <= j)) || ((j <= 64 && 0 <= j) && 32 <= i)) || ((j <= 66 && 33 <= i) && 0 <= j)) || ((36 <= i && j <= 72) && 0 <= j)) || ((j <= 44 && 22 <= i) && 0 <= j)) || ((j <= 0 && i == 0) && 0 <= j)) || ((28 <= i && j <= 56) && 0 <= j)) || ((j <= 32 && 0 <= j) && 16 <= i)) || ((j <= 22 && 11 <= i) && 0 <= j)) || ((j <= 178 && 89 <= i) && 0 <= j)) || ((j <= 52 && 26 <= i) && 0 <= j)) || ((8 <= i && j <= 16) && 0 <= j)) || ((j <= 86 && 43 <= i) && 0 <= j)) || ((j <= 80 && 40 <= i) && 0 <= j)) || ((39 <= i && j <= 78) && 0 <= j)) || ((70 <= i && j <= 140) && 0 <= j)) || ((j <= 186 && 93 <= i) && 0 <= j)) || ((4 <= i && j <= 8) && 0 <= j)) || ((14 <= i && j <= 28) && 0 <= j)) || ((81 <= i && j <= 162) && 0 <= j)) || ((1 <= i && j <= 2) && 0 <= j)) || ((60 <= i && j <= 120) && 0 <= j)) || ((j <= 46 && 23 <= i) && 0 <= j)) || ((j <= 122 && 61 <= i) && 0 <= j)) || ((j <= 194 && 97 <= i) && 0 <= j)) || ((98 <= i && 0 <= j) && j <= 196)) || ((57 <= i && j <= 114) && 0 <= j)) || ((j <= 110 && 55 <= i) && 0 <= j)) || ((j <= 144 && 72 <= i) && 0 <= j)) || ((j <= 84 && 42 <= i) && 0 <= j)) || ((3 <= i && j <= 6) && 0 <= j)) || ((30 <= i && j <= 60) && 0 <= j)) || ((j <= 62 && 31 <= i) && 0 <= j)) || ((j <= 24 && 12 <= i) && 0 <= j)) || ((73 <= i && j <= 146) && 0 <= j)) || ((15 <= i && j <= 30) && 0 <= j)) || ((79 <= i && j <= 158) && 0 <= j)) || ((j <= 42 && 21 <= i) && 0 <= j)) || ((82 <= i && j <= 164) && 0 <= j)) || ((j <= 106 && 53 <= i) && 0 <= j)) || ((91 <= i && j <= 182) && 0 <= j)) || ((j <= 184 && 92 <= i) && 0 <= j)) || ((j <= 126 && 63 <= i) && 0 <= j)) || ((j <= 74 && 37 <= i) && 0 <= j)) || ((47 <= i && j <= 94) && 0 <= j)) || ((9 <= i && j <= 18) && 0 <= j)) || ((62 <= i && j <= 124) && 0 <= j)) || ((j <= 142 && 71 <= i) && 0 <= j)) || ((95 <= i && j <= 190) && 0 <= j)) || ((100 <= i && j <= 200) && 0 <= j)) || ((80 <= i && j <= 160) && 0 <= j)) || ((j <= 26 && 13 <= i) && 0 <= j)) || ((j <= 14 && 7 <= i) && 0 <= j)) || ((83 <= i && j <= 166) && 0 <= j)) || ((j <= 170 && 85 <= i) && 0 <= j)) || ((j <= 34 && 17 <= i) && 0 <= j)) || ((2 <= i && j <= 4) && 0 <= j)) || ((68 <= i && 0 <= j) && j <= 136)) || ((j <= 148 && 74 <= i) && 0 <= j)) || ((20 <= i && j <= 40) && 0 <= j)) || ((j <= 70 && 35 <= i) && 0 <= j)) || ((j <= 48 && 24 <= i) && 0 <= j)) || ((67 <= i && j <= 134) && 0 <= j)) || ((18 <= i && j <= 36) && 0 <= j)) || ((j <= 50 && 25 <= i) && 0 <= j) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 00:44:34,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ed022-d740-41d5-b3df-5a538e2a91b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...