/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-8c2bbc9 [2021-10-07 14:54:11,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-07 14:54:11,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-07 14:54:11,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-07 14:54:11,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-07 14:54:11,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-07 14:54:11,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-07 14:54:11,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-07 14:54:11,621 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-07 14:54:11,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-07 14:54:11,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-07 14:54:11,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-07 14:54:11,625 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-07 14:54:11,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-07 14:54:11,626 INFO L138 SettingsManager]: * Use SBE=true [2021-10-07 14:54:11,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-07 14:54:11,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-07 14:54:11,627 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-07 14:54:11,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-07 14:54:11,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-07 14:54:11,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-07 14:54:11,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-07 14:54:11,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-07 14:54:11,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-07 14:54:11,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-07 14:54:11,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-07 14:54:11,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-07 14:54:11,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:54:11,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-07 14:54:11,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-07 14:54:11,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-07 14:54:11,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-07 14:54:11,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-07 14:54:11,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-07 14:54:11,633 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-07 14:54:11,633 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:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-07 14:54:12,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-07 14:54:12,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-07 14:54:12,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-07 14:54:12,135 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-07 14:54:12,136 INFO L275 PluginConnector]: CDTParser initialized [2021-10-07 14:54:12,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-07 14:54:12,229 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdd0f2aec/d80c6b2e3d4241cb9648ea0f0c746f63/FLAGa1efa5724 [2021-10-07 14:54:12,929 INFO L306 CDTParser]: Found 1 translation units. [2021-10-07 14:54:12,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c [2021-10-07 14:54:12,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdd0f2aec/d80c6b2e3d4241cb9648ea0f0c746f63/FLAGa1efa5724 [2021-10-07 14:54:13,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bdd0f2aec/d80c6b2e3d4241cb9648ea0f0c746f63 [2021-10-07 14:54:13,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-07 14:54:13,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-07 14:54:13,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-07 14:54:13,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-07 14:54:13,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-07 14:54:13,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e74045e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13, skipping insertion in model container [2021-10-07 14:54:13,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-07 14:54:13,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-07 14:54:13,587 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3401,3414] [2021-10-07 14:54:13,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:54:13,604 INFO L203 MainTranslator]: Completed pre-run [2021-10-07 14:54:13,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-3.wvr.c[3401,3414] [2021-10-07 14:54:13,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-07 14:54:13,659 INFO L208 MainTranslator]: Completed translation [2021-10-07 14:54:13,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13 WrapperNode [2021-10-07 14:54:13,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-07 14:54:13,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-07 14:54:13,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-07 14:54:13,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-07 14:54:13,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-07 14:54:13,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-07 14:54:13,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-07 14:54:13,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-07 14:54:13,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-07 14:54:13,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-07 14:54:13,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-07 14:54:13,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-07 14:54:13,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (1/1) ... [2021-10-07 14:54:13,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-07 14:54:13,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-07 14:54:13,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-07 14:54:13,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-07 14:54:13,852 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-07 14:54:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-07 14:54:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-07 14:54:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-07 14:54:13,853 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-07 14:54:13,853 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-07 14:54:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-07 14:54:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-07 14:54:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-07 14:54:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-07 14:54:13,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-07 14:54:13,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-07 14:54:13,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-07 14:54:13,857 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-07 14:54:14,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-07 14:54:14,455 INFO L299 CfgBuilder]: Removed 32 assume(true) statements. [2021-10-07 14:54:14,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:54:14 BoogieIcfgContainer [2021-10-07 14:54:14,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-07 14:54:14,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-07 14:54:14,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-07 14:54:14,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-07 14:54:14,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:54:13" (1/3) ... [2021-10-07 14:54:14,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c317302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:54:14, skipping insertion in model container [2021-10-07 14:54:14,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:54:13" (2/3) ... [2021-10-07 14:54:14,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c317302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:54:14, skipping insertion in model container [2021-10-07 14:54:14,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:54:14" (3/3) ... [2021-10-07 14:54:14,468 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-bakery-3.wvr.c [2021-10-07 14:54:14,474 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-07 14:54:14,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-07 14:54:14,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2021-10-07 14:54:14,475 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-07 14:54:14,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,522 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,523 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,524 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,525 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,526 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,527 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,528 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,529 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,529 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,529 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,530 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,530 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,530 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,530 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,531 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,531 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,532 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,532 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,532 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,533 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,533 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,536 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,536 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,537 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,537 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,538 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,538 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,538 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,538 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,539 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,539 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,540 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,540 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,541 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,542 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,543 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,544 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,544 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,545 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,546 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,547 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,548 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,549 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,550 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,551 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,551 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,552 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,552 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,552 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,552 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,552 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,553 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,553 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,553 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,553 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,553 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,554 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,554 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,554 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,554 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,554 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,555 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,555 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,555 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,555 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,555 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,556 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,556 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,556 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,556 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,557 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,557 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,558 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,558 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,558 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,558 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,559 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,559 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,559 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,559 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,560 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,560 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,560 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,560 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,560 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,561 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,561 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,561 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,561 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,563 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,563 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,563 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,564 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,565 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,565 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,565 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,565 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,566 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,567 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,567 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,567 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,567 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,567 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,568 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,568 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,568 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,568 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,569 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,569 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,569 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,569 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,569 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,570 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,570 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,570 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,570 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,571 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,572 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,572 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,572 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,573 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,573 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,574 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,574 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,574 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,574 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,575 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,575 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,575 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,575 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,576 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,576 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,576 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,576 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,576 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,577 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,577 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,577 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,577 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,578 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,579 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,579 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,579 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,579 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,580 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,584 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,585 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,585 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,590 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,590 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,591 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,593 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,594 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,594 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-07 14:54:14,607 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-07 14:54:14,666 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-07 14:54:14,674 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 [2021-10-07 14:54:14,675 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-10-07 14:54:14,698 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-07 14:54:14,712 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-07 14:54:14,716 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 253 places, 263 transitions, 550 flow [2021-10-07 14:54:14,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 253 places, 263 transitions, 550 flow [2021-10-07 14:54:14,887 INFO L129 PetriNetUnfolder]: 20/260 cut-off events. [2021-10-07 14:54:14,887 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-07 14:54:14,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 273 conditions, 260 events. 20/260 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 429 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 182. Up to 2 conditions per place. [2021-10-07 14:54:14,920 INFO L116 LiptonReduction]: Number of co-enabled transitions 21384 [2021-10-07 14:54:21,927 INFO L131 LiptonReduction]: Checked pairs total: 64020 [2021-10-07 14:54:21,927 INFO L133 LiptonReduction]: Total number of compositions: 249 [2021-10-07 14:54:21,938 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 84 transitions, 192 flow [2021-10-07 14:54:22,894 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:22,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 14:54:22,972 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:22,972 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 14:54:22,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:22,980 INFO L82 PathProgramCache]: Analyzing trace with hash 780287375, now seen corresponding path program 1 times [2021-10-07 14:54:22,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:22,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771458316] [2021-10-07 14:54:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:22,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:23,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:23,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771458316] [2021-10-07 14:54:23,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771458316] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:23,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:23,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:23,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940050822] [2021-10-07 14:54:23,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:23,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:23,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:23,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:23,415 INFO L87 Difference]: Start difference. First operand has 20344 states, 20218 states have (on average 3.7051637155010386) internal successors, (74911), 20343 states have internal predecessors, (74911), 0 states have call successors, (0), 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 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-10-07 14:54:24,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:24,993 INFO L93 Difference]: Finished difference Result 49056 states and 177101 transitions. [2021-10-07 14:54:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:54:25,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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 [2021-10-07 14:54:25,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:26,052 INFO L225 Difference]: With dead ends: 49056 [2021-10-07 14:54:26,052 INFO L226 Difference]: Without dead ends: 48996 [2021-10-07 14:54:26,054 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:54:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48996 states. [2021-10-07 14:54:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48996 to 23050. [2021-10-07 14:54:27,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23050 states, 22926 states have (on average 3.7226729477449183) internal successors, (85346), 23049 states have internal predecessors, (85346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23050 states to 23050 states and 85346 transitions. [2021-10-07 14:54:28,346 INFO L78 Accepts]: Start accepts. Automaton has 23050 states and 85346 transitions. Word has length 6 [2021-10-07 14:54:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:28,347 INFO L470 AbstractCegarLoop]: Abstraction has 23050 states and 85346 transitions. [2021-10-07 14:54:28,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2021-10-07 14:54:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 23050 states and 85346 transitions. [2021-10-07 14:54:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-07 14:54:28,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:28,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-07 14:54:28,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-07 14:54:28,350 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash 780287173, now seen corresponding path program 1 times [2021-10-07 14:54:28,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:28,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802440551] [2021-10-07 14:54:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:28,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:28,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:28,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802440551] [2021-10-07 14:54:28,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802440551] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:28,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:28,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 14:54:28,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374971477] [2021-10-07 14:54:28,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:54:28,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:28,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:54:28,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:54:28,472 INFO L87 Difference]: Start difference. First operand 23050 states and 85346 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2021-10-07 14:54:29,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:29,052 INFO L93 Difference]: Finished difference Result 26574 states and 98588 transitions. [2021-10-07 14:54:29,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 14:54:29,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2021-10-07 14:54:29,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:29,430 INFO L225 Difference]: With dead ends: 26574 [2021-10-07 14:54:29,431 INFO L226 Difference]: Without dead ends: 26574 [2021-10-07 14:54:29,432 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:29,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26574 states. [2021-10-07 14:54:30,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26574 to 24722. [2021-10-07 14:54:30,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24722 states, 24598 states have (on average 3.73940970810635) internal successors, (91982), 24721 states have internal predecessors, (91982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:30,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24722 states to 24722 states and 91982 transitions. [2021-10-07 14:54:30,940 INFO L78 Accepts]: Start accepts. Automaton has 24722 states and 91982 transitions. Word has length 6 [2021-10-07 14:54:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:30,941 INFO L470 AbstractCegarLoop]: Abstraction has 24722 states and 91982 transitions. [2021-10-07 14:54:30,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2021-10-07 14:54:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 24722 states and 91982 transitions. [2021-10-07 14:54:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:30,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:30,944 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:30,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-07 14:54:30,945 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:30,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:30,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313786, now seen corresponding path program 1 times [2021-10-07 14:54:30,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:30,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859553646] [2021-10-07 14:54:30,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:30,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:31,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:31,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:31,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859553646] [2021-10-07 14:54:31,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859553646] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:31,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:31,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:54:31,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027772451] [2021-10-07 14:54:31,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:54:31,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:31,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:54:31,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:31,035 INFO L87 Difference]: Start difference. First operand 24722 states and 91982 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:33,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:33,135 INFO L93 Difference]: Finished difference Result 91108 states and 326528 transitions. [2021-10-07 14:54:33,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 14:54:33,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-07 14:54:33,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:34,477 INFO L225 Difference]: With dead ends: 91108 [2021-10-07 14:54:34,478 INFO L226 Difference]: Without dead ends: 91108 [2021-10-07 14:54:34,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 139.3ms TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2021-10-07 14:54:34,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91108 states. [2021-10-07 14:54:37,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91108 to 33080. [2021-10-07 14:54:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33080 states, 32956 states have (on average 3.796820002427479) internal successors, (125128), 33079 states have internal predecessors, (125128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:38,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33080 states to 33080 states and 125128 transitions. [2021-10-07 14:54:38,032 INFO L78 Accepts]: Start accepts. Automaton has 33080 states and 125128 transitions. Word has length 8 [2021-10-07 14:54:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:38,033 INFO L470 AbstractCegarLoop]: Abstraction has 33080 states and 125128 transitions. [2021-10-07 14:54:38,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:38,034 INFO L276 IsEmpty]: Start isEmpty. Operand 33080 states and 125128 transitions. [2021-10-07 14:54:38,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:38,037 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:38,037 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:38,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-07 14:54:38,038 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:38,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:38,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1768313988, now seen corresponding path program 1 times [2021-10-07 14:54:38,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:38,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547636091] [2021-10-07 14:54:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:38,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:38,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:38,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:38,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547636091] [2021-10-07 14:54:38,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547636091] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:38,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:38,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:38,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509234197] [2021-10-07 14:54:38,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:38,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:38,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:38,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:38,164 INFO L87 Difference]: Start difference. First operand 33080 states and 125128 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:38,979 INFO L93 Difference]: Finished difference Result 43866 states and 169293 transitions. [2021-10-07 14:54:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 14:54:38,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-07 14:54:38,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:39,260 INFO L225 Difference]: With dead ends: 43866 [2021-10-07 14:54:39,260 INFO L226 Difference]: Without dead ends: 43866 [2021-10-07 14:54:39,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:39,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43866 states. [2021-10-07 14:54:40,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43866 to 41168. [2021-10-07 14:54:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41168 states, 41044 states have (on average 3.887632784329013) internal successors, (159564), 41167 states have internal predecessors, (159564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41168 states to 41168 states and 159564 transitions. [2021-10-07 14:54:41,388 INFO L78 Accepts]: Start accepts. Automaton has 41168 states and 159564 transitions. Word has length 8 [2021-10-07 14:54:41,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:41,389 INFO L470 AbstractCegarLoop]: Abstraction has 41168 states and 159564 transitions. [2021-10-07 14:54:41,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:41,389 INFO L276 IsEmpty]: Start isEmpty. Operand 41168 states and 159564 transitions. [2021-10-07 14:54:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:41,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:41,398 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:41,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-07 14:54:41,400 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:41,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:41,401 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639182, now seen corresponding path program 1 times [2021-10-07 14:54:41,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:41,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929604927] [2021-10-07 14:54:41,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:41,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:41,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:41,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:41,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929604927] [2021-10-07 14:54:41,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929604927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:41,489 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:41,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:54:41,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034540128] [2021-10-07 14:54:41,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:54:41,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:41,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:54:41,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:54:41,492 INFO L87 Difference]: Start difference. First operand 41168 states and 159564 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:43,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:43,074 INFO L93 Difference]: Finished difference Result 94898 states and 360387 transitions. [2021-10-07 14:54:43,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 14:54:43,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-07 14:54:43,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:44,273 INFO L225 Difference]: With dead ends: 94898 [2021-10-07 14:54:44,273 INFO L226 Difference]: Without dead ends: 94898 [2021-10-07 14:54:44,274 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-07 14:54:44,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94898 states. [2021-10-07 14:54:46,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94898 to 44536. [2021-10-07 14:54:46,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44536 states, 44412 states have (on average 3.892754210573719) internal successors, (172885), 44535 states have internal predecessors, (172885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44536 states to 44536 states and 172885 transitions. [2021-10-07 14:54:46,670 INFO L78 Accepts]: Start accepts. Automaton has 44536 states and 172885 transitions. Word has length 8 [2021-10-07 14:54:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:46,670 INFO L470 AbstractCegarLoop]: Abstraction has 44536 states and 172885 transitions. [2021-10-07 14:54:46,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 44536 states and 172885 transitions. [2021-10-07 14:54:46,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-07 14:54:46,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:46,671 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:46,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-07 14:54:46,672 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:46,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:46,672 INFO L82 PathProgramCache]: Analyzing trace with hash -2068639384, now seen corresponding path program 1 times [2021-10-07 14:54:46,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:46,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438878982] [2021-10-07 14:54:46,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:46,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:46,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:46,724 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438878982] [2021-10-07 14:54:46,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438878982] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:46,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:46,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:54:46,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276874480] [2021-10-07 14:54:46,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:54:46,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:46,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:54:46,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:54:46,727 INFO L87 Difference]: Start difference. First operand 44536 states and 172885 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:48,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:48,234 INFO L93 Difference]: Finished difference Result 89060 states and 338540 transitions. [2021-10-07 14:54:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 14:54:48,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-07 14:54:48,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:49,409 INFO L225 Difference]: With dead ends: 89060 [2021-10-07 14:54:49,409 INFO L226 Difference]: Without dead ends: 89060 [2021-10-07 14:54:49,410 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 37.4ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-07 14:54:49,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89060 states. [2021-10-07 14:54:51,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89060 to 47846. [2021-10-07 14:54:51,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47846 states, 47722 states have (on average 3.8958970705335068) internal successors, (185920), 47845 states have internal predecessors, (185920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47846 states to 47846 states and 185920 transitions. [2021-10-07 14:54:52,029 INFO L78 Accepts]: Start accepts. Automaton has 47846 states and 185920 transitions. Word has length 8 [2021-10-07 14:54:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:52,030 INFO L470 AbstractCegarLoop]: Abstraction has 47846 states and 185920 transitions. [2021-10-07 14:54:52,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 47846 states and 185920 transitions. [2021-10-07 14:54:52,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 14:54:52,031 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:52,031 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:52,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-07 14:54:52,032 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:52,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:52,032 INFO L82 PathProgramCache]: Analyzing trace with hash -843448665, now seen corresponding path program 1 times [2021-10-07 14:54:52,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:52,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821516410] [2021-10-07 14:54:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:52,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:52,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:52,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821516410] [2021-10-07 14:54:52,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821516410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:52,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:52,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:52,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141194377] [2021-10-07 14:54:52,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:52,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:52,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:52,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:52,116 INFO L87 Difference]: Start difference. First operand 47846 states and 185920 transitions. Second operand has 5 states, 4 states have (on average 2.5) 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) [2021-10-07 14:54:53,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:53,354 INFO L93 Difference]: Finished difference Result 62786 states and 247266 transitions. [2021-10-07 14:54:53,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 14:54:53,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) 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 [2021-10-07 14:54:53,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:53,849 INFO L225 Difference]: With dead ends: 62786 [2021-10-07 14:54:53,849 INFO L226 Difference]: Without dead ends: 62786 [2021-10-07 14:54:53,851 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.1ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62786 states. [2021-10-07 14:54:56,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62786 to 54778. [2021-10-07 14:54:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54778 states, 54654 states have (on average 3.9392542174406264) internal successors, (215296), 54777 states have internal predecessors, (215296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:54:57,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54778 states to 54778 states and 215296 transitions. [2021-10-07 14:54:57,104 INFO L78 Accepts]: Start accepts. Automaton has 54778 states and 215296 transitions. Word has length 10 [2021-10-07 14:54:57,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:54:57,113 INFO L470 AbstractCegarLoop]: Abstraction has 54778 states and 215296 transitions. [2021-10-07 14:54:57,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) 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) [2021-10-07 14:54:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 54778 states and 215296 transitions. [2021-10-07 14:54:57,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 14:54:57,116 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:54:57,116 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:54:57,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-07 14:54:57,116 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:54:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:54:57,117 INFO L82 PathProgramCache]: Analyzing trace with hash -843448667, now seen corresponding path program 1 times [2021-10-07 14:54:57,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:54:57,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865526488] [2021-10-07 14:54:57,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:54:57,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:54:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:54:57,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:54:57,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:54:57,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865526488] [2021-10-07 14:54:57,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865526488] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:54:57,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:54:57,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:54:57,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680175531] [2021-10-07 14:54:57,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:54:57,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:54:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:54:57,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:54:57,215 INFO L87 Difference]: Start difference. First operand 54778 states and 215296 transitions. Second operand has 5 states, 4 states have (on average 2.5) 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) [2021-10-07 14:54:58,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:54:58,719 INFO L93 Difference]: Finished difference Result 79660 states and 308477 transitions. [2021-10-07 14:54:58,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 14:54:58,726 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) 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 [2021-10-07 14:54:58,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:54:59,419 INFO L225 Difference]: With dead ends: 79660 [2021-10-07 14:54:59,420 INFO L226 Difference]: Without dead ends: 79660 [2021-10-07 14:54:59,420 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.7ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:54:59,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79660 states. [2021-10-07 14:55:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79660 to 54836. [2021-10-07 14:55:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54836 states, 54712 states have (on average 3.9277123848515867) internal successors, (214893), 54835 states have internal predecessors, (214893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:02,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54836 states to 54836 states and 214893 transitions. [2021-10-07 14:55:02,208 INFO L78 Accepts]: Start accepts. Automaton has 54836 states and 214893 transitions. Word has length 10 [2021-10-07 14:55:02,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:02,208 INFO L470 AbstractCegarLoop]: Abstraction has 54836 states and 214893 transitions. [2021-10-07 14:55:02,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) 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) [2021-10-07 14:55:02,209 INFO L276 IsEmpty]: Start isEmpty. Operand 54836 states and 214893 transitions. [2021-10-07 14:55:02,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 14:55:02,211 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:02,211 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:02,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-07 14:55:02,211 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:02,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:02,212 INFO L82 PathProgramCache]: Analyzing trace with hash -339849195, now seen corresponding path program 1 times [2021-10-07 14:55:02,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:02,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283075454] [2021-10-07 14:55:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:02,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:02,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:02,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283075454] [2021-10-07 14:55:02,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283075454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:02,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:02,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 14:55:02,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046805419] [2021-10-07 14:55:02,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 14:55:02,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:02,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 14:55:02,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 14:55:02,259 INFO L87 Difference]: Start difference. First operand 54836 states and 214893 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-07 14:55:04,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:04,548 INFO L93 Difference]: Finished difference Result 105644 states and 405950 transitions. [2021-10-07 14:55:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 14:55:04,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2021-10-07 14:55:04,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:05,489 INFO L225 Difference]: With dead ends: 105644 [2021-10-07 14:55:05,489 INFO L226 Difference]: Without dead ends: 105644 [2021-10-07 14:55:05,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:55:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105644 states. [2021-10-07 14:55:08,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105644 to 51974. [2021-10-07 14:55:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51974 states, 51850 states have (on average 3.930337512054002) internal successors, (203788), 51973 states have internal predecessors, (203788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:08,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51974 states to 51974 states and 203788 transitions. [2021-10-07 14:55:08,978 INFO L78 Accepts]: Start accepts. Automaton has 51974 states and 203788 transitions. Word has length 10 [2021-10-07 14:55:08,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:08,990 INFO L470 AbstractCegarLoop]: Abstraction has 51974 states and 203788 transitions. [2021-10-07 14:55:08,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2021-10-07 14:55:08,990 INFO L276 IsEmpty]: Start isEmpty. Operand 51974 states and 203788 transitions. [2021-10-07 14:55:09,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-07 14:55:09,003 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:09,003 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:09,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-07 14:55:09,003 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:09,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:09,008 INFO L82 PathProgramCache]: Analyzing trace with hash 602399785, now seen corresponding path program 1 times [2021-10-07 14:55:09,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:09,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313982364] [2021-10-07 14:55:09,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:09,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:09,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:09,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313982364] [2021-10-07 14:55:09,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313982364] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:09,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:09,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:55:09,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997363091] [2021-10-07 14:55:09,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:55:09,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:55:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:55:09,153 INFO L87 Difference]: Start difference. First operand 51974 states and 203788 transitions. Second operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2021-10-07 14:55:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:12,132 INFO L93 Difference]: Finished difference Result 161218 states and 601925 transitions. [2021-10-07 14:55:12,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-07 14:55:12,132 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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 [2021-10-07 14:55:12,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:13,959 INFO L225 Difference]: With dead ends: 161218 [2021-10-07 14:55:13,959 INFO L226 Difference]: Without dead ends: 161218 [2021-10-07 14:55:13,960 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 191.1ms TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2021-10-07 14:55:14,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161218 states. [2021-10-07 14:55:17,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161218 to 48710. [2021-10-07 14:55:17,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48710 states, 48586 states have (on average 3.8955872061910837) internal successors, (189271), 48709 states have internal predecessors, (189271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:17,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48710 states to 48710 states and 189271 transitions. [2021-10-07 14:55:17,783 INFO L78 Accepts]: Start accepts. Automaton has 48710 states and 189271 transitions. Word has length 10 [2021-10-07 14:55:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:17,784 INFO L470 AbstractCegarLoop]: Abstraction has 48710 states and 189271 transitions. [2021-10-07 14:55:17,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2021-10-07 14:55:17,784 INFO L276 IsEmpty]: Start isEmpty. Operand 48710 states and 189271 transitions. [2021-10-07 14:55:17,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 14:55:17,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:17,785 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:17,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-07 14:55:17,786 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:17,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:17,786 INFO L82 PathProgramCache]: Analyzing trace with hash -443700866, now seen corresponding path program 1 times [2021-10-07 14:55:17,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:17,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875639533] [2021-10-07 14:55:17,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:17,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:17,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:17,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:17,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875639533] [2021-10-07 14:55:17,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875639533] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:17,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:17,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:55:17,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474201838] [2021-10-07 14:55:17,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:55:17,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:55:17,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:55:17,839 INFO L87 Difference]: Start difference. First operand 48710 states and 189271 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:19,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:19,370 INFO L93 Difference]: Finished difference Result 95262 states and 364421 transitions. [2021-10-07 14:55:19,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:55:19,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 14:55:19,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:19,957 INFO L225 Difference]: With dead ends: 95262 [2021-10-07 14:55:19,957 INFO L226 Difference]: Without dead ends: 95262 [2021-10-07 14:55:19,957 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-07 14:55:20,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95262 states. [2021-10-07 14:55:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95262 to 54218. [2021-10-07 14:55:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54218 states, 54094 states have (on average 3.9188080008873443) internal successors, (211984), 54217 states have internal predecessors, (211984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:23,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54218 states to 54218 states and 211984 transitions. [2021-10-07 14:55:23,341 INFO L78 Accepts]: Start accepts. Automaton has 54218 states and 211984 transitions. Word has length 11 [2021-10-07 14:55:23,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:23,342 INFO L470 AbstractCegarLoop]: Abstraction has 54218 states and 211984 transitions. [2021-10-07 14:55:23,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:23,342 INFO L276 IsEmpty]: Start isEmpty. Operand 54218 states and 211984 transitions. [2021-10-07 14:55:23,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 14:55:23,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:23,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:23,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-07 14:55:23,345 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:23,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:23,346 INFO L82 PathProgramCache]: Analyzing trace with hash -443700868, now seen corresponding path program 1 times [2021-10-07 14:55:23,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:23,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594922277] [2021-10-07 14:55:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:23,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:23,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:23,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594922277] [2021-10-07 14:55:23,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594922277] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:23,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:23,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:55:23,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486444202] [2021-10-07 14:55:23,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:55:23,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:23,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:55:23,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:55:23,457 INFO L87 Difference]: Start difference. First operand 54218 states and 211984 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:26,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:26,316 INFO L93 Difference]: Finished difference Result 133366 states and 504616 transitions. [2021-10-07 14:55:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 14:55:26,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 14:55:26,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:27,845 INFO L225 Difference]: With dead ends: 133366 [2021-10-07 14:55:27,845 INFO L226 Difference]: Without dead ends: 133366 [2021-10-07 14:55:27,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 61.4ms TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-10-07 14:55:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133366 states. [2021-10-07 14:55:30,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133366 to 53236. [2021-10-07 14:55:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53236 states, 53112 states have (on average 3.8789162524476577) internal successors, (206017), 53235 states have internal predecessors, (206017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:31,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53236 states to 53236 states and 206017 transitions. [2021-10-07 14:55:31,630 INFO L78 Accepts]: Start accepts. Automaton has 53236 states and 206017 transitions. Word has length 11 [2021-10-07 14:55:31,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:31,631 INFO L470 AbstractCegarLoop]: Abstraction has 53236 states and 206017 transitions. [2021-10-07 14:55:31,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:31,631 INFO L276 IsEmpty]: Start isEmpty. Operand 53236 states and 206017 transitions. [2021-10-07 14:55:31,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 14:55:31,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:31,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:31,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-07 14:55:31,633 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:31,634 INFO L82 PathProgramCache]: Analyzing trace with hash -379139712, now seen corresponding path program 1 times [2021-10-07 14:55:31,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:31,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278609575] [2021-10-07 14:55:31,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:31,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:31,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:31,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:31,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278609575] [2021-10-07 14:55:31,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278609575] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:31,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:31,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:55:31,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943181048] [2021-10-07 14:55:31,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:55:31,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:55:31,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:55:31,674 INFO L87 Difference]: Start difference. First operand 53236 states and 206017 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:33,049 INFO L93 Difference]: Finished difference Result 90830 states and 343878 transitions. [2021-10-07 14:55:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 14:55:33,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 14:55:33,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:33,652 INFO L225 Difference]: With dead ends: 90830 [2021-10-07 14:55:33,653 INFO L226 Difference]: Without dead ends: 90830 [2021-10-07 14:55:33,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:55:33,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90830 states. [2021-10-07 14:55:35,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90830 to 55506. [2021-10-07 14:55:35,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55506 states, 55382 states have (on average 3.8870029973637643) internal successors, (215270), 55505 states have internal predecessors, (215270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55506 states to 55506 states and 215270 transitions. [2021-10-07 14:55:36,511 INFO L78 Accepts]: Start accepts. Automaton has 55506 states and 215270 transitions. Word has length 11 [2021-10-07 14:55:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:36,511 INFO L470 AbstractCegarLoop]: Abstraction has 55506 states and 215270 transitions. [2021-10-07 14:55:36,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 55506 states and 215270 transitions. [2021-10-07 14:55:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 14:55:36,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:36,514 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:36,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-07 14:55:36,514 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:36,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:36,514 INFO L82 PathProgramCache]: Analyzing trace with hash -379139714, now seen corresponding path program 1 times [2021-10-07 14:55:36,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:36,515 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24166451] [2021-10-07 14:55:36,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:36,515 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:36,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:36,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24166451] [2021-10-07 14:55:36,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24166451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:36,627 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:36,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:55:36,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363183558] [2021-10-07 14:55:36,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:55:36,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:36,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:55:36,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:55:36,628 INFO L87 Difference]: Start difference. First operand 55506 states and 215270 transitions. Second operand has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:38,709 INFO L93 Difference]: Finished difference Result 120174 states and 457384 transitions. [2021-10-07 14:55:38,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-07 14:55:38,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 14:55:38,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:39,538 INFO L225 Difference]: With dead ends: 120174 [2021-10-07 14:55:39,538 INFO L226 Difference]: Without dead ends: 120174 [2021-10-07 14:55:39,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 71.4ms TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-10-07 14:55:40,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120174 states. [2021-10-07 14:55:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120174 to 65686. [2021-10-07 14:55:42,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65686 states, 65562 states have (on average 3.910054604801562) internal successors, (256351), 65685 states have internal predecessors, (256351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:43,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65686 states to 65686 states and 256351 transitions. [2021-10-07 14:55:43,883 INFO L78 Accepts]: Start accepts. Automaton has 65686 states and 256351 transitions. Word has length 11 [2021-10-07 14:55:43,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:43,887 INFO L470 AbstractCegarLoop]: Abstraction has 65686 states and 256351 transitions. [2021-10-07 14:55:43,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:43,888 INFO L276 IsEmpty]: Start isEmpty. Operand 65686 states and 256351 transitions. [2021-10-07 14:55:43,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-07 14:55:43,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:43,891 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:43,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-07 14:55:43,892 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:43,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:43,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1665169359, now seen corresponding path program 1 times [2021-10-07 14:55:43,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:43,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941975265] [2021-10-07 14:55:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:43,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:43,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:43,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:43,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941975265] [2021-10-07 14:55:43,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941975265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:43,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:43,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 14:55:43,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786282111] [2021-10-07 14:55:43,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 14:55:43,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:43,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 14:55:43,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:55:43,996 INFO L87 Difference]: Start difference. First operand 65686 states and 256351 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:44,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:44,598 INFO L93 Difference]: Finished difference Result 62494 states and 242885 transitions. [2021-10-07 14:55:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 14:55:44,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-07 14:55:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:45,460 INFO L225 Difference]: With dead ends: 62494 [2021-10-07 14:55:45,462 INFO L226 Difference]: Without dead ends: 62494 [2021-10-07 14:55:45,465 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:55:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62494 states. [2021-10-07 14:55:47,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62494 to 62160. [2021-10-07 14:55:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62160 states, 62064 states have (on average 3.9023588553750965) internal successors, (242196), 62159 states have internal predecessors, (242196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:47,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62160 states to 62160 states and 242196 transitions. [2021-10-07 14:55:47,938 INFO L78 Accepts]: Start accepts. Automaton has 62160 states and 242196 transitions. Word has length 11 [2021-10-07 14:55:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:55:47,939 INFO L470 AbstractCegarLoop]: Abstraction has 62160 states and 242196 transitions. [2021-10-07 14:55:47,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:55:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 62160 states and 242196 transitions. [2021-10-07 14:55:47,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 14:55:47,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:55:47,943 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:55:47,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-07 14:55:47,943 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:55:47,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:55:47,944 INFO L82 PathProgramCache]: Analyzing trace with hash -871859833, now seen corresponding path program 1 times [2021-10-07 14:55:47,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:55:47,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866084051] [2021-10-07 14:55:47,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:55:47,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:55:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:55:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:55:48,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:55:48,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866084051] [2021-10-07 14:55:48,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866084051] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:55:48,032 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:55:48,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 14:55:48,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029313154] [2021-10-07 14:55:48,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 14:55:48,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:55:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 14:55:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:55:48,034 INFO L87 Difference]: Start difference. First operand 62160 states and 242196 transitions. Second operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-10-07 14:55:53,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:55:53,303 INFO L93 Difference]: Finished difference Result 259570 states and 966159 transitions. [2021-10-07 14:55:53,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-07 14:55:53,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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 [2021-10-07 14:55:53,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:55:56,100 INFO L225 Difference]: With dead ends: 259570 [2021-10-07 14:55:56,101 INFO L226 Difference]: Without dead ends: 259570 [2021-10-07 14:55:56,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 288.9ms TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2021-10-07 14:55:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259570 states. [2021-10-07 14:56:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259570 to 64538. [2021-10-07 14:56:02,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64538 states, 64442 states have (on average 3.887573321746687) internal successors, (250523), 64537 states have internal predecessors, (250523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64538 states to 64538 states and 250523 transitions. [2021-10-07 14:56:02,419 INFO L78 Accepts]: Start accepts. Automaton has 64538 states and 250523 transitions. Word has length 12 [2021-10-07 14:56:02,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:02,419 INFO L470 AbstractCegarLoop]: Abstraction has 64538 states and 250523 transitions. [2021-10-07 14:56:02,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 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) [2021-10-07 14:56:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 64538 states and 250523 transitions. [2021-10-07 14:56:02,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 14:56:02,425 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:02,425 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:02,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-07 14:56:02,425 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:02,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:02,426 INFO L82 PathProgramCache]: Analyzing trace with hash -398441128, now seen corresponding path program 1 times [2021-10-07 14:56:02,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:02,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797907240] [2021-10-07 14:56:02,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:02,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:02,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:02,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797907240] [2021-10-07 14:56:02,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797907240] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:02,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:02,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:56:02,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274751540] [2021-10-07 14:56:02,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:56:02,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:02,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:56:02,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:56:02,464 INFO L87 Difference]: Start difference. First operand 64538 states and 250523 transitions. Second operand has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:04,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:04,205 INFO L93 Difference]: Finished difference Result 115380 states and 446289 transitions. [2021-10-07 14:56:04,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 14:56:04,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) 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 [2021-10-07 14:56:04,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:05,672 INFO L225 Difference]: With dead ends: 115380 [2021-10-07 14:56:05,672 INFO L226 Difference]: Without dead ends: 115380 [2021-10-07 14:56:05,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:56:05,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115380 states. [2021-10-07 14:56:09,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115380 to 73702. [2021-10-07 14:56:09,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73702 states, 73606 states have (on average 3.9450859984240414) internal successors, (290382), 73701 states have internal predecessors, (290382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:10,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73702 states to 73702 states and 290382 transitions. [2021-10-07 14:56:10,353 INFO L78 Accepts]: Start accepts. Automaton has 73702 states and 290382 transitions. Word has length 12 [2021-10-07 14:56:10,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:10,354 INFO L470 AbstractCegarLoop]: Abstraction has 73702 states and 290382 transitions. [2021-10-07 14:56:10,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 73702 states and 290382 transitions. [2021-10-07 14:56:10,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 14:56:10,384 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:10,384 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-07 14:56:10,384 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:10,385 INFO L82 PathProgramCache]: Analyzing trace with hash -180249091, now seen corresponding path program 1 times [2021-10-07 14:56:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:10,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422246217] [2021-10-07 14:56:10,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:10,388 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:10,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:10,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422246217] [2021-10-07 14:56:10,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422246217] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:10,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:10,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:56:10,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810250046] [2021-10-07 14:56:10,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:56:10,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:10,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:56:10,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:56:10,528 INFO L87 Difference]: Start difference. First operand 73702 states and 290382 transitions. Second operand has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:13,346 INFO L93 Difference]: Finished difference Result 126146 states and 489200 transitions. [2021-10-07 14:56:13,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:56:13,346 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) 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 [2021-10-07 14:56:13,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:15,266 INFO L225 Difference]: With dead ends: 126146 [2021-10-07 14:56:15,266 INFO L226 Difference]: Without dead ends: 126146 [2021-10-07 14:56:15,267 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 49.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:56:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126146 states. [2021-10-07 14:56:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126146 to 77612. [2021-10-07 14:56:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77612 states, 77516 states have (on average 3.9423989885959028) internal successors, (305599), 77611 states have internal predecessors, (305599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77612 states to 77612 states and 305599 transitions. [2021-10-07 14:56:19,553 INFO L78 Accepts]: Start accepts. Automaton has 77612 states and 305599 transitions. Word has length 12 [2021-10-07 14:56:19,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:19,554 INFO L470 AbstractCegarLoop]: Abstraction has 77612 states and 305599 transitions. [2021-10-07 14:56:19,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:19,554 INFO L276 IsEmpty]: Start isEmpty. Operand 77612 states and 305599 transitions. [2021-10-07 14:56:19,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 14:56:19,558 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:19,558 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:19,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-07 14:56:19,558 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:19,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:19,559 INFO L82 PathProgramCache]: Analyzing trace with hash -180249147, now seen corresponding path program 1 times [2021-10-07 14:56:19,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:19,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316836400] [2021-10-07 14:56:19,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:19,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:19,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:19,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:19,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:19,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316836400] [2021-10-07 14:56:19,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316836400] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:19,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:19,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:56:19,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948043843] [2021-10-07 14:56:19,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:56:19,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:19,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:56:19,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:56:19,603 INFO L87 Difference]: Start difference. First operand 77612 states and 305599 transitions. Second operand has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:21,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:21,357 INFO L93 Difference]: Finished difference Result 116334 states and 447515 transitions. [2021-10-07 14:56:21,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 14:56:21,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) 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 [2021-10-07 14:56:21,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:22,757 INFO L225 Difference]: With dead ends: 116334 [2021-10-07 14:56:22,757 INFO L226 Difference]: Without dead ends: 116334 [2021-10-07 14:56:22,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 23.1ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:56:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116334 states. [2021-10-07 14:56:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116334 to 81806. [2021-10-07 14:56:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81806 states, 81710 states have (on average 3.9342185778974423) internal successors, (321465), 81805 states have internal predecessors, (321465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81806 states to 81806 states and 321465 transitions. [2021-10-07 14:56:27,041 INFO L78 Accepts]: Start accepts. Automaton has 81806 states and 321465 transitions. Word has length 12 [2021-10-07 14:56:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:27,041 INFO L470 AbstractCegarLoop]: Abstraction has 81806 states and 321465 transitions. [2021-10-07 14:56:27,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) 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) [2021-10-07 14:56:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 81806 states and 321465 transitions. [2021-10-07 14:56:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-07 14:56:27,046 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:27,046 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:27,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-07 14:56:27,046 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:27,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:27,047 INFO L82 PathProgramCache]: Analyzing trace with hash -80642325, now seen corresponding path program 1 times [2021-10-07 14:56:27,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:27,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104430821] [2021-10-07 14:56:27,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:27,048 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:27,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:27,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:27,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104430821] [2021-10-07 14:56:27,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104430821] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:27,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:27,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-07 14:56:27,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789359354] [2021-10-07 14:56:27,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 14:56:27,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:27,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 14:56:27,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:56:27,077 INFO L87 Difference]: Start difference. First operand 81806 states and 321465 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-07 14:56:28,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:28,382 INFO L93 Difference]: Finished difference Result 76390 states and 300331 transitions. [2021-10-07 14:56:28,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 14:56:28,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2021-10-07 14:56:28,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:28,836 INFO L225 Difference]: With dead ends: 76390 [2021-10-07 14:56:28,836 INFO L226 Difference]: Without dead ends: 76390 [2021-10-07 14:56:28,837 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:56:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76390 states. [2021-10-07 14:56:31,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76390 to 76370. [2021-10-07 14:56:31,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76370 states, 76296 states have (on average 3.9359992660165672) internal successors, (300301), 76369 states have internal predecessors, (300301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76370 states to 76370 states and 300301 transitions. [2021-10-07 14:56:32,314 INFO L78 Accepts]: Start accepts. Automaton has 76370 states and 300301 transitions. Word has length 12 [2021-10-07 14:56:32,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:32,314 INFO L470 AbstractCegarLoop]: Abstraction has 76370 states and 300301 transitions. [2021-10-07 14:56:32,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-07 14:56:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 76370 states and 300301 transitions. [2021-10-07 14:56:32,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-07 14:56:32,322 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:32,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:32,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-07 14:56:32,323 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:32,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:32,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1491008336, now seen corresponding path program 1 times [2021-10-07 14:56:32,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:32,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208008730] [2021-10-07 14:56:32,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:32,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:32,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:32,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:32,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208008730] [2021-10-07 14:56:32,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208008730] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:32,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:32,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:56:32,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554711173] [2021-10-07 14:56:32,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:56:32,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:32,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:56:32,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:56:32,372 INFO L87 Difference]: Start difference. First operand 76370 states and 300301 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) 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) [2021-10-07 14:56:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:35,428 INFO L93 Difference]: Finished difference Result 135214 states and 521592 transitions. [2021-10-07 14:56:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 14:56:35,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) 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 [2021-10-07 14:56:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:36,878 INFO L225 Difference]: With dead ends: 135214 [2021-10-07 14:56:36,878 INFO L226 Difference]: Without dead ends: 135214 [2021-10-07 14:56:36,879 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 80.1ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-07 14:56:37,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135214 states. [2021-10-07 14:56:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135214 to 77284. [2021-10-07 14:56:40,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77284 states, 77210 states have (on average 3.937028882269136) internal successors, (303978), 77283 states have internal predecessors, (303978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77284 states to 77284 states and 303978 transitions. [2021-10-07 14:56:41,616 INFO L78 Accepts]: Start accepts. Automaton has 77284 states and 303978 transitions. Word has length 13 [2021-10-07 14:56:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:41,617 INFO L470 AbstractCegarLoop]: Abstraction has 77284 states and 303978 transitions. [2021-10-07 14:56:41,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) 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) [2021-10-07 14:56:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 77284 states and 303978 transitions. [2021-10-07 14:56:41,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-07 14:56:41,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:41,624 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:41,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-07 14:56:41,624 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:41,631 INFO L82 PathProgramCache]: Analyzing trace with hash 750092280, now seen corresponding path program 1 times [2021-10-07 14:56:41,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:41,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388388105] [2021-10-07 14:56:41,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:41,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:41,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:41,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388388105] [2021-10-07 14:56:41,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388388105] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:41,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:41,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:56:41,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629330463] [2021-10-07 14:56:41,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:56:41,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:41,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:56:41,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:56:41,716 INFO L87 Difference]: Start difference. First operand 77284 states and 303978 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) 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) [2021-10-07 14:56:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:43,926 INFO L93 Difference]: Finished difference Result 142594 states and 546565 transitions. [2021-10-07 14:56:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 14:56:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) 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 [2021-10-07 14:56:43,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:45,604 INFO L225 Difference]: With dead ends: 142594 [2021-10-07 14:56:45,604 INFO L226 Difference]: Without dead ends: 142594 [2021-10-07 14:56:45,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 78.8ms TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2021-10-07 14:56:45,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142594 states. [2021-10-07 14:56:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142594 to 77362. [2021-10-07 14:56:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77362 states, 77288 states have (on average 3.9361737915329678) internal successors, (304219), 77361 states have internal predecessors, (304219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:56:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77362 states to 77362 states and 304219 transitions. [2021-10-07 14:56:50,925 INFO L78 Accepts]: Start accepts. Automaton has 77362 states and 304219 transitions. Word has length 13 [2021-10-07 14:56:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:56:50,926 INFO L470 AbstractCegarLoop]: Abstraction has 77362 states and 304219 transitions. [2021-10-07 14:56:50,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) 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) [2021-10-07 14:56:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 77362 states and 304219 transitions. [2021-10-07 14:56:50,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:56:50,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:56:50,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:56:50,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-07 14:56:50,942 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:56:50,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:56:50,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428974, now seen corresponding path program 1 times [2021-10-07 14:56:50,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:56:50,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87982642] [2021-10-07 14:56:50,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:56:50,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:56:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:56:51,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:56:51,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:56:51,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87982642] [2021-10-07 14:56:51,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87982642] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:56:51,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:56:51,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:56:51,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241524140] [2021-10-07 14:56:51,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:56:51,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:56:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:56:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:56:51,061 INFO L87 Difference]: Start difference. First operand 77362 states and 304219 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:56:54,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:56:54,800 INFO L93 Difference]: Finished difference Result 154284 states and 591616 transitions. [2021-10-07 14:56:54,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-07 14:56:54,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 [2021-10-07 14:56:54,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:56:56,839 INFO L225 Difference]: With dead ends: 154284 [2021-10-07 14:56:56,840 INFO L226 Difference]: Without dead ends: 154284 [2021-10-07 14:56:56,840 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 151.8ms TimeCoverageRelationStatistics Valid=178, Invalid=524, Unknown=0, NotChecked=0, Total=702 [2021-10-07 14:56:57,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154284 states. [2021-10-07 14:57:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154284 to 80106. [2021-10-07 14:57:01,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80106 states, 80032 states have (on average 3.935863154738105) internal successors, (314995), 80105 states have internal predecessors, (314995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:02,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80106 states to 80106 states and 314995 transitions. [2021-10-07 14:57:02,160 INFO L78 Accepts]: Start accepts. Automaton has 80106 states and 314995 transitions. Word has length 15 [2021-10-07 14:57:02,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:02,160 INFO L470 AbstractCegarLoop]: Abstraction has 80106 states and 314995 transitions. [2021-10-07 14:57:02,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:57:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 80106 states and 314995 transitions. [2021-10-07 14:57:02,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:02,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:02,173 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:02,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-07 14:57:02,174 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:02,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:02,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1982428976, now seen corresponding path program 1 times [2021-10-07 14:57:02,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:02,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275221223] [2021-10-07 14:57:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:02,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:02,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:02,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275221223] [2021-10-07 14:57:02,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275221223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:02,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:02,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:57:02,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675319353] [2021-10-07 14:57:02,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:57:02,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:02,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:57:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:57:02,217 INFO L87 Difference]: Start difference. First operand 80106 states and 314995 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 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) [2021-10-07 14:57:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:04,210 INFO L93 Difference]: Finished difference Result 115810 states and 451450 transitions. [2021-10-07 14:57:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:57:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 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 [2021-10-07 14:57:04,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:05,645 INFO L225 Difference]: With dead ends: 115810 [2021-10-07 14:57:05,645 INFO L226 Difference]: Without dead ends: 115810 [2021-10-07 14:57:05,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 40.2ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-10-07 14:57:05,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115810 states. [2021-10-07 14:57:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115810 to 82302. [2021-10-07 14:57:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82302 states, 82228 states have (on average 3.9476698934669456) internal successors, (324609), 82301 states have internal predecessors, (324609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82302 states to 82302 states and 324609 transitions. [2021-10-07 14:57:09,856 INFO L78 Accepts]: Start accepts. Automaton has 82302 states and 324609 transitions. Word has length 15 [2021-10-07 14:57:09,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:09,856 INFO L470 AbstractCegarLoop]: Abstraction has 82302 states and 324609 transitions. [2021-10-07 14:57:09,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 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) [2021-10-07 14:57:09,856 INFO L276 IsEmpty]: Start isEmpty. Operand 82302 states and 324609 transitions. [2021-10-07 14:57:09,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:09,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:09,865 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:09,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-07 14:57:09,870 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:09,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1025193403, now seen corresponding path program 1 times [2021-10-07 14:57:09,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:09,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618565284] [2021-10-07 14:57:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:09,871 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:09,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:09,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618565284] [2021-10-07 14:57:09,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618565284] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:09,913 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:09,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:57:09,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102991026] [2021-10-07 14:57:09,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-07 14:57:09,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:09,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-07 14:57:09,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:57:09,914 INFO L87 Difference]: Start difference. First operand 82302 states and 324609 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2021-10-07 14:57:11,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:11,338 INFO L93 Difference]: Finished difference Result 82236 states and 323107 transitions. [2021-10-07 14:57:11,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-07 14:57:11,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2021-10-07 14:57:11,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:12,315 INFO L225 Difference]: With dead ends: 82236 [2021-10-07 14:57:12,315 INFO L226 Difference]: Without dead ends: 82236 [2021-10-07 14:57:12,316 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-07 14:57:12,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82236 states. [2021-10-07 14:57:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82236 to 80290. [2021-10-07 14:57:14,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80290 states, 80216 states have (on average 3.9431410192480305) internal successors, (316303), 80289 states have internal predecessors, (316303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80290 states to 80290 states and 316303 transitions. [2021-10-07 14:57:15,992 INFO L78 Accepts]: Start accepts. Automaton has 80290 states and 316303 transitions. Word has length 15 [2021-10-07 14:57:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:15,994 INFO L470 AbstractCegarLoop]: Abstraction has 80290 states and 316303 transitions. [2021-10-07 14:57:15,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2021-10-07 14:57:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 80290 states and 316303 transitions. [2021-10-07 14:57:16,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:16,019 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:16,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:16,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-07 14:57:16,020 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:16,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:16,025 INFO L82 PathProgramCache]: Analyzing trace with hash -585927000, now seen corresponding path program 1 times [2021-10-07 14:57:16,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:16,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207123862] [2021-10-07 14:57:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:16,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:16,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:16,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:16,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207123862] [2021-10-07 14:57:16,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207123862] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:16,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:16,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:57:16,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327137629] [2021-10-07 14:57:16,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:57:16,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:16,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:57:16,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:57:16,151 INFO L87 Difference]: Start difference. First operand 80290 states and 316303 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:57:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:18,756 INFO L93 Difference]: Finished difference Result 164808 states and 636281 transitions. [2021-10-07 14:57:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 14:57:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 [2021-10-07 14:57:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:20,732 INFO L225 Difference]: With dead ends: 164808 [2021-10-07 14:57:20,733 INFO L226 Difference]: Without dead ends: 164808 [2021-10-07 14:57:20,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 134.1ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-07 14:57:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164808 states. [2021-10-07 14:57:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164808 to 82606. [2021-10-07 14:57:25,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82606 states, 82532 states have (on average 3.9416226433383414) internal successors, (325310), 82605 states have internal predecessors, (325310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:26,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82606 states to 82606 states and 325310 transitions. [2021-10-07 14:57:26,301 INFO L78 Accepts]: Start accepts. Automaton has 82606 states and 325310 transitions. Word has length 15 [2021-10-07 14:57:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:26,301 INFO L470 AbstractCegarLoop]: Abstraction has 82606 states and 325310 transitions. [2021-10-07 14:57:26,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:57:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 82606 states and 325310 transitions. [2021-10-07 14:57:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:26,317 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:26,317 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:26,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-07 14:57:26,318 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:26,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash -585927202, now seen corresponding path program 1 times [2021-10-07 14:57:26,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:26,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530261923] [2021-10-07 14:57:26,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:26,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:26,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:26,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530261923] [2021-10-07 14:57:26,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530261923] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:26,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:26,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:57:26,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835783214] [2021-10-07 14:57:26,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:57:26,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:57:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:57:26,372 INFO L87 Difference]: Start difference. First operand 82606 states and 325310 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:57:29,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:29,457 INFO L93 Difference]: Finished difference Result 143828 states and 553090 transitions. [2021-10-07 14:57:29,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 14:57:29,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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 [2021-10-07 14:57:29,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:30,580 INFO L225 Difference]: With dead ends: 143828 [2021-10-07 14:57:30,580 INFO L226 Difference]: Without dead ends: 143828 [2021-10-07 14:57:30,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 131.5ms TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-10-07 14:57:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143828 states. [2021-10-07 14:57:34,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143828 to 80680. [2021-10-07 14:57:34,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80680 states, 80606 states have (on average 3.937312358881473) internal successors, (317371), 80679 states have internal predecessors, (317371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:35,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80680 states to 80680 states and 317371 transitions. [2021-10-07 14:57:35,714 INFO L78 Accepts]: Start accepts. Automaton has 80680 states and 317371 transitions. Word has length 15 [2021-10-07 14:57:35,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:35,714 INFO L470 AbstractCegarLoop]: Abstraction has 80680 states and 317371 transitions. [2021-10-07 14:57:35,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 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) [2021-10-07 14:57:35,715 INFO L276 IsEmpty]: Start isEmpty. Operand 80680 states and 317371 transitions. [2021-10-07 14:57:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:35,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:35,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:35,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-07 14:57:35,729 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:35,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:35,730 INFO L82 PathProgramCache]: Analyzing trace with hash 709531306, now seen corresponding path program 1 times [2021-10-07 14:57:35,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:35,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662603276] [2021-10-07 14:57:35,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:35,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:35,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:35,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:35,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662603276] [2021-10-07 14:57:35,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662603276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:35,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:35,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-07 14:57:35,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977375183] [2021-10-07 14:57:35,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:57:35,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:35,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:57:35,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:57:35,774 INFO L87 Difference]: Start difference. First operand 80680 states and 317371 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:38,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:38,467 INFO L93 Difference]: Finished difference Result 150694 states and 584087 transitions. [2021-10-07 14:57:38,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 14:57:38,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-07 14:57:38,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:40,792 INFO L225 Difference]: With dead ends: 150694 [2021-10-07 14:57:40,793 INFO L226 Difference]: Without dead ends: 150694 [2021-10-07 14:57:40,793 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:57:41,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150694 states. [2021-10-07 14:57:46,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150694 to 81736. [2021-10-07 14:57:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81736 states, 81662 states have (on average 3.9408904998652985) internal successors, (321821), 81735 states have internal predecessors, (321821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:47,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81736 states to 81736 states and 321821 transitions. [2021-10-07 14:57:47,493 INFO L78 Accepts]: Start accepts. Automaton has 81736 states and 321821 transitions. Word has length 15 [2021-10-07 14:57:47,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:47,493 INFO L470 AbstractCegarLoop]: Abstraction has 81736 states and 321821 transitions. [2021-10-07 14:57:47,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:47,493 INFO L276 IsEmpty]: Start isEmpty. Operand 81736 states and 321821 transitions. [2021-10-07 14:57:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:47,507 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:47,508 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:47,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-07 14:57:47,508 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:47,509 INFO L82 PathProgramCache]: Analyzing trace with hash 927723231, now seen corresponding path program 1 times [2021-10-07 14:57:47,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:47,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217473856] [2021-10-07 14:57:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:47,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:47,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:47,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217473856] [2021-10-07 14:57:47,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217473856] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:47,556 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:47,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:57:47,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521266830] [2021-10-07 14:57:47,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:57:47,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:47,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:57:47,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:57:47,557 INFO L87 Difference]: Start difference. First operand 81736 states and 321821 transitions. Second operand has 6 states, 5 states have (on average 3.0) 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) [2021-10-07 14:57:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:57:49,445 INFO L93 Difference]: Finished difference Result 126638 states and 490638 transitions. [2021-10-07 14:57:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 14:57:49,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) 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 [2021-10-07 14:57:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:57:50,784 INFO L225 Difference]: With dead ends: 126638 [2021-10-07 14:57:50,786 INFO L226 Difference]: Without dead ends: 126638 [2021-10-07 14:57:50,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 50.3ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-07 14:57:51,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126638 states. [2021-10-07 14:57:54,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126638 to 83486. [2021-10-07 14:57:54,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83486 states, 83412 states have (on average 3.9489641778161415) internal successors, (329391), 83485 states have internal predecessors, (329391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:57:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83486 states to 83486 states and 329391 transitions. [2021-10-07 14:57:54,846 INFO L78 Accepts]: Start accepts. Automaton has 83486 states and 329391 transitions. Word has length 15 [2021-10-07 14:57:54,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:57:54,847 INFO L470 AbstractCegarLoop]: Abstraction has 83486 states and 329391 transitions. [2021-10-07 14:57:54,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) 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) [2021-10-07 14:57:54,847 INFO L276 IsEmpty]: Start isEmpty. Operand 83486 states and 329391 transitions. [2021-10-07 14:57:54,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:57:54,856 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:57:54,856 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:57:54,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-07 14:57:54,857 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:57:54,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:57:54,857 INFO L82 PathProgramCache]: Analyzing trace with hash -721029009, now seen corresponding path program 1 times [2021-10-07 14:57:54,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:57:54,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520718148] [2021-10-07 14:57:54,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:57:54,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:57:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:57:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:57:54,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:57:54,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520718148] [2021-10-07 14:57:54,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520718148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:57:54,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:57:54,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 14:57:54,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347082422] [2021-10-07 14:57:54,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 14:57:54,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:57:54,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 14:57:54,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:57:54,916 INFO L87 Difference]: Start difference. First operand 83486 states and 329391 transitions. Second operand has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-07 14:58:00,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:00,084 INFO L93 Difference]: Finished difference Result 223234 states and 845202 transitions. [2021-10-07 14:58:00,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-10-07 14:58:00,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 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 [2021-10-07 14:58:00,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:01,877 INFO L225 Difference]: With dead ends: 223234 [2021-10-07 14:58:01,878 INFO L226 Difference]: Without dead ends: 223234 [2021-10-07 14:58:01,879 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 300.9ms TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 14:58:03,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223234 states. [2021-10-07 14:58:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223234 to 79134. [2021-10-07 14:58:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79134 states, 79060 states have (on average 3.9221224386541866) internal successors, (310083), 79133 states have internal predecessors, (310083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79134 states to 79134 states and 310083 transitions. [2021-10-07 14:58:08,543 INFO L78 Accepts]: Start accepts. Automaton has 79134 states and 310083 transitions. Word has length 15 [2021-10-07 14:58:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:08,543 INFO L470 AbstractCegarLoop]: Abstraction has 79134 states and 310083 transitions. [2021-10-07 14:58:08,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.875) internal successors, (15), 8 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) [2021-10-07 14:58:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 79134 states and 310083 transitions. [2021-10-07 14:58:08,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-07 14:58:08,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:08,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:08,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-07 14:58:08,558 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash 116330873, now seen corresponding path program 1 times [2021-10-07 14:58:08,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:08,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094609420] [2021-10-07 14:58:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:08,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:08,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:08,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094609420] [2021-10-07 14:58:08,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094609420] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:08,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:08,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:58:08,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079746855] [2021-10-07 14:58:08,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:58:08,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:08,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:58:08,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:58:08,609 INFO L87 Difference]: Start difference. First operand 79134 states and 310083 transitions. Second operand has 6 states, 5 states have (on average 3.0) 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) [2021-10-07 14:58:10,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:10,719 INFO L93 Difference]: Finished difference Result 132072 states and 509099 transitions. [2021-10-07 14:58:10,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 14:58:10,719 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) 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 [2021-10-07 14:58:10,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:12,325 INFO L225 Difference]: With dead ends: 132072 [2021-10-07 14:58:12,325 INFO L226 Difference]: Without dead ends: 132072 [2021-10-07 14:58:12,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 61.6ms TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-07 14:58:12,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132072 states. [2021-10-07 14:58:16,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132072 to 80582. [2021-10-07 14:58:16,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80582 states, 80508 states have (on average 3.929944850201222) internal successors, (316392), 80581 states have internal predecessors, (316392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:17,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80582 states to 80582 states and 316392 transitions. [2021-10-07 14:58:17,192 INFO L78 Accepts]: Start accepts. Automaton has 80582 states and 316392 transitions. Word has length 15 [2021-10-07 14:58:17,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:17,193 INFO L470 AbstractCegarLoop]: Abstraction has 80582 states and 316392 transitions. [2021-10-07 14:58:17,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) 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) [2021-10-07 14:58:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 80582 states and 316392 transitions. [2021-10-07 14:58:17,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:58:17,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:17,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:17,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-07 14:58:17,210 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:17,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:17,211 INFO L82 PathProgramCache]: Analyzing trace with hash -2062345677, now seen corresponding path program 1 times [2021-10-07 14:58:17,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:17,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737768142] [2021-10-07 14:58:17,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:17,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:17,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:17,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737768142] [2021-10-07 14:58:17,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737768142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:17,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:17,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:58:17,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025304705] [2021-10-07 14:58:17,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:58:17,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:17,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:58:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:58:17,269 INFO L87 Difference]: Start difference. First operand 80582 states and 316392 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:22,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:22,001 INFO L93 Difference]: Finished difference Result 274034 states and 1039593 transitions. [2021-10-07 14:58:22,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 14:58:22,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:58:22,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:25,203 INFO L225 Difference]: With dead ends: 274034 [2021-10-07 14:58:25,203 INFO L226 Difference]: Without dead ends: 274034 [2021-10-07 14:58:25,204 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-07 14:58:26,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274034 states. [2021-10-07 14:58:35,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274034 to 85514. [2021-10-07 14:58:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85514 states, 85440 states have (on average 3.9273993445692885) internal successors, (335557), 85513 states have internal predecessors, (335557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:36,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85514 states to 85514 states and 335557 transitions. [2021-10-07 14:58:36,160 INFO L78 Accepts]: Start accepts. Automaton has 85514 states and 335557 transitions. Word has length 16 [2021-10-07 14:58:36,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:36,161 INFO L470 AbstractCegarLoop]: Abstraction has 85514 states and 335557 transitions. [2021-10-07 14:58:36,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:36,161 INFO L276 IsEmpty]: Start isEmpty. Operand 85514 states and 335557 transitions. [2021-10-07 14:58:36,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:58:36,173 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:36,173 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:36,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-07 14:58:36,173 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:36,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:36,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1844153752, now seen corresponding path program 1 times [2021-10-07 14:58:36,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:36,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251972842] [2021-10-07 14:58:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:36,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:36,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:36,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251972842] [2021-10-07 14:58:36,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251972842] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:36,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:36,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:58:36,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445316831] [2021-10-07 14:58:36,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:58:36,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:58:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:58:36,216 INFO L87 Difference]: Start difference. First operand 85514 states and 335557 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:38,840 INFO L93 Difference]: Finished difference Result 133144 states and 494453 transitions. [2021-10-07 14:58:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:58:38,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:58:38,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:39,843 INFO L225 Difference]: With dead ends: 133144 [2021-10-07 14:58:39,843 INFO L226 Difference]: Without dead ends: 133144 [2021-10-07 14:58:39,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:58:40,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133144 states. [2021-10-07 14:58:43,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133144 to 68172. [2021-10-07 14:58:43,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68172 states, 68098 states have (on average 3.8305823959587655) internal successors, (260855), 68171 states have internal predecessors, (260855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:43,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260855 transitions. [2021-10-07 14:58:43,542 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260855 transitions. Word has length 16 [2021-10-07 14:58:43,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:43,543 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260855 transitions. [2021-10-07 14:58:43,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:43,543 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260855 transitions. [2021-10-07 14:58:43,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:58:43,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:43,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:43,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-07 14:58:43,554 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1447269180, now seen corresponding path program 2 times [2021-10-07 14:58:43,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:43,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564787660] [2021-10-07 14:58:43,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:43,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:44,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:44,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564787660] [2021-10-07 14:58:44,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564787660] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:44,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:44,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:58:44,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037913654] [2021-10-07 14:58:44,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:58:44,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:58:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:58:44,172 INFO L87 Difference]: Start difference. First operand 68172 states and 260855 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:45,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:45,826 INFO L93 Difference]: Finished difference Result 106228 states and 406287 transitions. [2021-10-07 14:58:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:58:45,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:58:45,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:46,583 INFO L225 Difference]: With dead ends: 106228 [2021-10-07 14:58:46,583 INFO L226 Difference]: Without dead ends: 106228 [2021-10-07 14:58:46,583 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 38.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:58:46,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106228 states. [2021-10-07 14:58:49,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106228 to 68172. [2021-10-07 14:58:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68172 states, 68098 states have (on average 3.8274986049516873) internal successors, (260645), 68171 states have internal predecessors, (260645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68172 states to 68172 states and 260645 transitions. [2021-10-07 14:58:50,172 INFO L78 Accepts]: Start accepts. Automaton has 68172 states and 260645 transitions. Word has length 16 [2021-10-07 14:58:50,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:50,173 INFO L470 AbstractCegarLoop]: Abstraction has 68172 states and 260645 transitions. [2021-10-07 14:58:50,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:58:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 68172 states and 260645 transitions. [2021-10-07 14:58:50,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:58:50,186 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:50,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:50,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-07 14:58:50,186 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:50,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:50,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1327790925, now seen corresponding path program 1 times [2021-10-07 14:58:50,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:50,187 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716486946] [2021-10-07 14:58:50,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:50,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:50,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:50,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:50,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716486946] [2021-10-07 14:58:50,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716486946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:50,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:50,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:58:50,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45852115] [2021-10-07 14:58:50,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:58:50,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:50,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:58:50,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:58:50,229 INFO L87 Difference]: Start difference. First operand 68172 states and 260645 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-07 14:58:52,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:52,085 INFO L93 Difference]: Finished difference Result 101632 states and 376829 transitions. [2021-10-07 14:58:52,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 14:58:52,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:58:52,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:58:52,686 INFO L225 Difference]: With dead ends: 101632 [2021-10-07 14:58:52,687 INFO L226 Difference]: Without dead ends: 101632 [2021-10-07 14:58:52,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 87.8ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-07 14:58:53,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101632 states. [2021-10-07 14:58:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101632 to 73746. [2021-10-07 14:58:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73746 states, 73672 states have (on average 3.7739711152133784) internal successors, (278036), 73745 states have internal predecessors, (278036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:58:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73746 states to 73746 states and 278036 transitions. [2021-10-07 14:58:56,044 INFO L78 Accepts]: Start accepts. Automaton has 73746 states and 278036 transitions. Word has length 16 [2021-10-07 14:58:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:58:56,045 INFO L470 AbstractCegarLoop]: Abstraction has 73746 states and 278036 transitions. [2021-10-07 14:58:56,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-07 14:58:56,045 INFO L276 IsEmpty]: Start isEmpty. Operand 73746 states and 278036 transitions. [2021-10-07 14:58:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:58:56,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:58:56,054 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:58:56,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-07 14:58:56,055 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:58:56,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:58:56,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1682494957, now seen corresponding path program 1 times [2021-10-07 14:58:56,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:58:56,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689462792] [2021-10-07 14:58:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:58:56,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:58:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:58:56,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:58:56,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:58:56,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689462792] [2021-10-07 14:58:56,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689462792] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:58:56,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:58:56,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:58:56,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26325203] [2021-10-07 14:58:56,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:58:56,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:58:56,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:58:56,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:58:56,111 INFO L87 Difference]: Start difference. First operand 73746 states and 278036 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2021-10-07 14:58:59,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:58:59,274 INFO L93 Difference]: Finished difference Result 172748 states and 640095 transitions. [2021-10-07 14:58:59,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-07 14:58:59,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:58:59,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:01,116 INFO L225 Difference]: With dead ends: 172748 [2021-10-07 14:59:01,116 INFO L226 Difference]: Without dead ends: 172748 [2021-10-07 14:59:01,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 734.4ms TimeCoverageRelationStatistics Valid=257, Invalid=933, Unknown=0, NotChecked=0, Total=1190 [2021-10-07 14:59:01,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172748 states. [2021-10-07 14:59:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172748 to 77148. [2021-10-07 14:59:05,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77148 states, 77074 states have (on average 3.7714015102369154) internal successors, (290677), 77147 states have internal predecessors, (290677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77148 states to 77148 states and 290677 transitions. [2021-10-07 14:59:06,176 INFO L78 Accepts]: Start accepts. Automaton has 77148 states and 290677 transitions. Word has length 16 [2021-10-07 14:59:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:06,176 INFO L470 AbstractCegarLoop]: Abstraction has 77148 states and 290677 transitions. [2021-10-07 14:59:06,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2021-10-07 14:59:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 77148 states and 290677 transitions. [2021-10-07 14:59:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:06,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:06,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:06,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-07 14:59:06,192 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:06,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash -48120344, now seen corresponding path program 3 times [2021-10-07 14:59:06,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:06,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057605861] [2021-10-07 14:59:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:06,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:06,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:06,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:06,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057605861] [2021-10-07 14:59:06,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057605861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:06,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:06,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:59:06,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042001594] [2021-10-07 14:59:06,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:59:06,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:06,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:59:06,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:59:06,238 INFO L87 Difference]: Start difference. First operand 77148 states and 290677 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:59:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:08,284 INFO L93 Difference]: Finished difference Result 105460 states and 379797 transitions. [2021-10-07 14:59:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 14:59:08,284 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:08,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:09,387 INFO L225 Difference]: With dead ends: 105460 [2021-10-07 14:59:09,387 INFO L226 Difference]: Without dead ends: 105460 [2021-10-07 14:59:09,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:59:09,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105460 states. [2021-10-07 14:59:12,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105460 to 59864. [2021-10-07 14:59:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59864 states, 59800 states have (on average 3.6340802675585286) internal successors, (217318), 59863 states have internal predecessors, (217318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59864 states to 59864 states and 217318 transitions. [2021-10-07 14:59:13,087 INFO L78 Accepts]: Start accepts. Automaton has 59864 states and 217318 transitions. Word has length 16 [2021-10-07 14:59:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:13,088 INFO L470 AbstractCegarLoop]: Abstraction has 59864 states and 217318 transitions. [2021-10-07 14:59:13,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:59:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 59864 states and 217318 transitions. [2021-10-07 14:59:13,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:13,098 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:13,098 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:13,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-07 14:59:13,098 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:13,099 INFO L82 PathProgramCache]: Analyzing trace with hash -715980733, now seen corresponding path program 1 times [2021-10-07 14:59:13,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:13,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699560447] [2021-10-07 14:59:13,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:13,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:13,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:13,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699560447] [2021-10-07 14:59:13,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699560447] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:13,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:13,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 14:59:13,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002007894] [2021-10-07 14:59:13,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 14:59:13,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:13,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 14:59:13,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 14:59:13,148 INFO L87 Difference]: Start difference. First operand 59864 states and 217318 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2021-10-07 14:59:15,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:15,479 INFO L93 Difference]: Finished difference Result 129698 states and 466910 transitions. [2021-10-07 14:59:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-07 14:59:15,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:15,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:16,244 INFO L225 Difference]: With dead ends: 129698 [2021-10-07 14:59:16,245 INFO L226 Difference]: Without dead ends: 129698 [2021-10-07 14:59:16,246 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 233.7ms TimeCoverageRelationStatistics Valid=290, Invalid=1116, Unknown=0, NotChecked=0, Total=1406 [2021-10-07 14:59:16,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129698 states. [2021-10-07 14:59:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129698 to 60446. [2021-10-07 14:59:19,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60446 states, 60382 states have (on average 3.6356033254943525) internal successors, (219525), 60445 states have internal predecessors, (219525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60446 states to 60446 states and 219525 transitions. [2021-10-07 14:59:19,591 INFO L78 Accepts]: Start accepts. Automaton has 60446 states and 219525 transitions. Word has length 16 [2021-10-07 14:59:19,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:19,591 INFO L470 AbstractCegarLoop]: Abstraction has 60446 states and 219525 transitions. [2021-10-07 14:59:19,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 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) [2021-10-07 14:59:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 60446 states and 219525 transitions. [2021-10-07 14:59:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:20,102 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:20,102 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:20,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-07 14:59:20,103 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:20,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:20,103 INFO L82 PathProgramCache]: Analyzing trace with hash -194952509, now seen corresponding path program 1 times [2021-10-07 14:59:20,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:20,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843638645] [2021-10-07 14:59:20,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:20,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:20,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:20,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843638645] [2021-10-07 14:59:20,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843638645] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:20,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:20,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 14:59:20,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167318321] [2021-10-07 14:59:20,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 14:59:20,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:20,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 14:59:20,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:59:20,237 INFO L87 Difference]: Start difference. First operand 60446 states and 219525 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-07 14:59:22,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:22,274 INFO L93 Difference]: Finished difference Result 106276 states and 382369 transitions. [2021-10-07 14:59:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-10-07 14:59:22,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:22,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:22,942 INFO L225 Difference]: With dead ends: 106276 [2021-10-07 14:59:22,942 INFO L226 Difference]: Without dead ends: 106276 [2021-10-07 14:59:22,942 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 176.4ms TimeCoverageRelationStatistics Valid=189, Invalid=623, Unknown=0, NotChecked=0, Total=812 [2021-10-07 14:59:23,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106276 states. [2021-10-07 14:59:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106276 to 60528. [2021-10-07 14:59:25,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60528 states, 60464 states have (on average 3.635717120931463) internal successors, (219830), 60527 states have internal predecessors, (219830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60528 states to 60528 states and 219830 transitions. [2021-10-07 14:59:26,185 INFO L78 Accepts]: Start accepts. Automaton has 60528 states and 219830 transitions. Word has length 16 [2021-10-07 14:59:26,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:26,186 INFO L470 AbstractCegarLoop]: Abstraction has 60528 states and 219830 transitions. [2021-10-07 14:59:26,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-07 14:59:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 60528 states and 219830 transitions. [2021-10-07 14:59:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:26,200 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:26,201 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:26,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-07 14:59:26,201 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:26,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:26,205 INFO L82 PathProgramCache]: Analyzing trace with hash -976000023, now seen corresponding path program 1 times [2021-10-07 14:59:26,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:26,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767669535] [2021-10-07 14:59:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:26,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:26,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:26,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:26,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767669535] [2021-10-07 14:59:26,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767669535] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:26,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:26,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 14:59:26,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837783511] [2021-10-07 14:59:26,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 14:59:26,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:26,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 14:59:26,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-07 14:59:26,293 INFO L87 Difference]: Start difference. First operand 60528 states and 219830 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-10-07 14:59:29,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:29,466 INFO L93 Difference]: Finished difference Result 149854 states and 527922 transitions. [2021-10-07 14:59:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-10-07 14:59:29,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:29,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:30,946 INFO L225 Difference]: With dead ends: 149854 [2021-10-07 14:59:30,946 INFO L226 Difference]: Without dead ends: 149854 [2021-10-07 14:59:30,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 469.8ms TimeCoverageRelationStatistics Valid=542, Invalid=2650, Unknown=0, NotChecked=0, Total=3192 [2021-10-07 14:59:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149854 states. [2021-10-07 14:59:34,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149854 to 59988. [2021-10-07 14:59:34,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59988 states, 59926 states have (on average 3.6349664586323134) internal successors, (217829), 59987 states have internal predecessors, (217829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:34,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59988 states to 59988 states and 217829 transitions. [2021-10-07 14:59:34,695 INFO L78 Accepts]: Start accepts. Automaton has 59988 states and 217829 transitions. Word has length 16 [2021-10-07 14:59:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:34,695 INFO L470 AbstractCegarLoop]: Abstraction has 59988 states and 217829 transitions. [2021-10-07 14:59:34,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 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) [2021-10-07 14:59:34,696 INFO L276 IsEmpty]: Start isEmpty. Operand 59988 states and 217829 transitions. [2021-10-07 14:59:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:34,704 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:34,704 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:34,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-07 14:59:34,705 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash 177831428, now seen corresponding path program 1 times [2021-10-07 14:59:34,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:34,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654395865] [2021-10-07 14:59:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:34,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:34,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:34,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654395865] [2021-10-07 14:59:34,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654395865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:34,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:34,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:59:34,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456117917] [2021-10-07 14:59:34,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 14:59:34,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:34,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 14:59:34,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:59:34,753 INFO L87 Difference]: Start difference. First operand 59988 states and 217829 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-07 14:59:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:36,258 INFO L93 Difference]: Finished difference Result 88488 states and 318579 transitions. [2021-10-07 14:59:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 14:59:36,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:36,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:36,761 INFO L225 Difference]: With dead ends: 88488 [2021-10-07 14:59:36,761 INFO L226 Difference]: Without dead ends: 88488 [2021-10-07 14:59:36,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 63.0ms TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-10-07 14:59:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88488 states. [2021-10-07 14:59:39,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88488 to 62312. [2021-10-07 14:59:39,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62312 states, 62250 states have (on average 3.6312289156626507) internal successors, (226044), 62311 states have internal predecessors, (226044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62312 states to 62312 states and 226044 transitions. [2021-10-07 14:59:39,858 INFO L78 Accepts]: Start accepts. Automaton has 62312 states and 226044 transitions. Word has length 16 [2021-10-07 14:59:39,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:39,858 INFO L470 AbstractCegarLoop]: Abstraction has 62312 states and 226044 transitions. [2021-10-07 14:59:39,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-07 14:59:39,858 INFO L276 IsEmpty]: Start isEmpty. Operand 62312 states and 226044 transitions. [2021-10-07 14:59:39,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-07 14:59:39,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:39,866 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:39,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-07 14:59:39,866 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:39,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:39,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1747771686, now seen corresponding path program 1 times [2021-10-07 14:59:39,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:39,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859997922] [2021-10-07 14:59:39,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:39,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:39,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:39,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:39,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859997922] [2021-10-07 14:59:39,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859997922] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:39,903 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:39,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 14:59:39,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392393819] [2021-10-07 14:59:39,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 14:59:39,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:39,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 14:59:39,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-07 14:59:39,905 INFO L87 Difference]: Start difference. First operand 62312 states and 226044 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:59:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:41,090 INFO L93 Difference]: Finished difference Result 76264 states and 275290 transitions. [2021-10-07 14:59:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-07 14:59:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-07 14:59:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:41,493 INFO L225 Difference]: With dead ends: 76264 [2021-10-07 14:59:41,494 INFO L226 Difference]: Without dead ends: 76264 [2021-10-07 14:59:41,494 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-07 14:59:41,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76264 states. [2021-10-07 14:59:43,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76264 to 63886. [2021-10-07 14:59:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63886 states, 63825 states have (on average 3.6362397179788486) internal successors, (232083), 63885 states have internal predecessors, (232083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:43,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63886 states to 63886 states and 232083 transitions. [2021-10-07 14:59:43,813 INFO L78 Accepts]: Start accepts. Automaton has 63886 states and 232083 transitions. Word has length 16 [2021-10-07 14:59:43,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:43,813 INFO L470 AbstractCegarLoop]: Abstraction has 63886 states and 232083 transitions. [2021-10-07 14:59:43,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-10-07 14:59:43,814 INFO L276 IsEmpty]: Start isEmpty. Operand 63886 states and 232083 transitions. [2021-10-07 14:59:43,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 14:59:43,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:43,822 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:43,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-07 14:59:43,822 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:43,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:43,823 INFO L82 PathProgramCache]: Analyzing trace with hash -223793062, now seen corresponding path program 1 times [2021-10-07 14:59:43,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:43,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827806943] [2021-10-07 14:59:43,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:43,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:43,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:43,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:43,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827806943] [2021-10-07 14:59:43,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827806943] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:43,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:43,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 14:59:43,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781611405] [2021-10-07 14:59:43,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 14:59:43,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:43,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 14:59:43,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 14:59:43,860 INFO L87 Difference]: Start difference. First operand 63886 states and 232083 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-10-07 14:59:45,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:45,335 INFO L93 Difference]: Finished difference Result 75110 states and 270801 transitions. [2021-10-07 14:59:45,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-07 14:59:45,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Word has length 17 [2021-10-07 14:59:45,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:45,798 INFO L225 Difference]: With dead ends: 75110 [2021-10-07 14:59:45,799 INFO L226 Difference]: Without dead ends: 75110 [2021-10-07 14:59:45,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-07 14:59:46,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75110 states. [2021-10-07 14:59:48,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75110 to 63696. [2021-10-07 14:59:48,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63696 states, 63635 states have (on average 3.6333935727194153) internal successors, (231211), 63695 states have internal predecessors, (231211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:48,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63696 states to 63696 states and 231211 transitions. [2021-10-07 14:59:48,861 INFO L78 Accepts]: Start accepts. Automaton has 63696 states and 231211 transitions. Word has length 17 [2021-10-07 14:59:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:48,861 INFO L470 AbstractCegarLoop]: Abstraction has 63696 states and 231211 transitions. [2021-10-07 14:59:48,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-10-07 14:59:48,861 INFO L276 IsEmpty]: Start isEmpty. Operand 63696 states and 231211 transitions. [2021-10-07 14:59:48,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 14:59:48,873 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:48,874 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:48,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-07 14:59:48,874 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:48,875 INFO L82 PathProgramCache]: Analyzing trace with hash 994065366, now seen corresponding path program 2 times [2021-10-07 14:59:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:48,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363065246] [2021-10-07 14:59:48,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:48,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:48,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:48,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:48,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363065246] [2021-10-07 14:59:48,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363065246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:48,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:48,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 14:59:48,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846625067] [2021-10-07 14:59:48,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 14:59:48,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:48,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 14:59:48,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 14:59:48,938 INFO L87 Difference]: Start difference. First operand 63696 states and 231211 transitions. Second operand has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2021-10-07 14:59:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:51,105 INFO L93 Difference]: Finished difference Result 118866 states and 427167 transitions. [2021-10-07 14:59:51,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-07 14:59:51,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) Word has length 17 [2021-10-07 14:59:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 14:59:52,528 INFO L225 Difference]: With dead ends: 118866 [2021-10-07 14:59:52,528 INFO L226 Difference]: Without dead ends: 118866 [2021-10-07 14:59:52,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 227.3ms TimeCoverageRelationStatistics Valid=284, Invalid=976, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 14:59:52,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118866 states. [2021-10-07 14:59:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118866 to 63704. [2021-10-07 14:59:56,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63704 states, 63643 states have (on average 3.634759517935987) internal successors, (231327), 63703 states have internal predecessors, (231327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 14:59:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63704 states to 63704 states and 231327 transitions. [2021-10-07 14:59:56,419 INFO L78 Accepts]: Start accepts. Automaton has 63704 states and 231327 transitions. Word has length 17 [2021-10-07 14:59:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 14:59:56,419 INFO L470 AbstractCegarLoop]: Abstraction has 63704 states and 231327 transitions. [2021-10-07 14:59:56,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 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) [2021-10-07 14:59:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 63704 states and 231327 transitions. [2021-10-07 14:59:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 14:59:56,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 14:59:56,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 14:59:56,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-07 14:59:56,428 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 14:59:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 14:59:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1001036741, now seen corresponding path program 1 times [2021-10-07 14:59:56,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 14:59:56,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160785317] [2021-10-07 14:59:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 14:59:56,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 14:59:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 14:59:56,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 14:59:56,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 14:59:56,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160785317] [2021-10-07 14:59:56,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160785317] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 14:59:56,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 14:59:56,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 14:59:56,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988065314] [2021-10-07 14:59:56,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 14:59:56,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 14:59:56,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 14:59:56,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-07 14:59:56,486 INFO L87 Difference]: Start difference. First operand 63704 states and 231327 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-10-07 14:59:59,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 14:59:59,416 INFO L93 Difference]: Finished difference Result 105536 states and 378443 transitions. [2021-10-07 14:59:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-07 14:59:59,417 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) Word has length 17 [2021-10-07 14:59:59,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:00,100 INFO L225 Difference]: With dead ends: 105536 [2021-10-07 15:00:00,101 INFO L226 Difference]: Without dead ends: 105536 [2021-10-07 15:00:00,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 785 ImplicationChecksByTransitivity, 333.3ms TimeCoverageRelationStatistics Valid=407, Invalid=1945, Unknown=0, NotChecked=0, Total=2352 [2021-10-07 15:00:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105536 states. [2021-10-07 15:00:02,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105536 to 61886. [2021-10-07 15:00:02,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61886 states, 61825 states have (on average 3.630117266477962) internal successors, (224432), 61885 states have internal predecessors, (224432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61886 states to 61886 states and 224432 transitions. [2021-10-07 15:00:03,424 INFO L78 Accepts]: Start accepts. Automaton has 61886 states and 224432 transitions. Word has length 17 [2021-10-07 15:00:03,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:03,425 INFO L470 AbstractCegarLoop]: Abstraction has 61886 states and 224432 transitions. [2021-10-07 15:00:03,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-10-07 15:00:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 61886 states and 224432 transitions. [2021-10-07 15:00:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:03,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:03,445 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:03,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-07 15:00:03,446 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:03,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:03,446 INFO L82 PathProgramCache]: Analyzing trace with hash -395879966, now seen corresponding path program 1 times [2021-10-07 15:00:03,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:03,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691938516] [2021-10-07 15:00:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:03,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:03,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:03,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691938516] [2021-10-07 15:00:03,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691938516] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:03,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:03,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:00:03,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548372767] [2021-10-07 15:00:03,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:00:03,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:03,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:00:03,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:00:03,538 INFO L87 Difference]: Start difference. First operand 61886 states and 224432 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-10-07 15:00:06,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:06,331 INFO L93 Difference]: Finished difference Result 130128 states and 467654 transitions. [2021-10-07 15:00:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-07 15:00:06,332 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) Word has length 17 [2021-10-07 15:00:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:07,505 INFO L225 Difference]: With dead ends: 130128 [2021-10-07 15:00:07,506 INFO L226 Difference]: Without dead ends: 130128 [2021-10-07 15:00:07,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 432.3ms TimeCoverageRelationStatistics Valid=526, Invalid=2230, Unknown=0, NotChecked=0, Total=2756 [2021-10-07 15:00:07,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130128 states. [2021-10-07 15:00:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130128 to 59914. [2021-10-07 15:00:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59914 states, 59853 states have (on average 3.6220406662990996) internal successors, (216790), 59913 states have internal predecessors, (216790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:10,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59914 states to 59914 states and 216790 transitions. [2021-10-07 15:00:10,325 INFO L78 Accepts]: Start accepts. Automaton has 59914 states and 216790 transitions. Word has length 17 [2021-10-07 15:00:10,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:10,326 INFO L470 AbstractCegarLoop]: Abstraction has 59914 states and 216790 transitions. [2021-10-07 15:00:10,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 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) [2021-10-07 15:00:10,326 INFO L276 IsEmpty]: Start isEmpty. Operand 59914 states and 216790 transitions. [2021-10-07 15:00:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:10,336 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:10,337 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:10,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-07 15:00:10,337 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:10,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1112350704, now seen corresponding path program 1 times [2021-10-07 15:00:10,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:10,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445115226] [2021-10-07 15:00:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:10,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:10,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:10,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:10,387 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445115226] [2021-10-07 15:00:10,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445115226] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:10,387 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:10,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 15:00:10,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94081016] [2021-10-07 15:00:10,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:00:10,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:00:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:00:10,389 INFO L87 Difference]: Start difference. First operand 59914 states and 216790 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-10-07 15:00:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:11,699 INFO L93 Difference]: Finished difference Result 80260 states and 287759 transitions. [2021-10-07 15:00:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:00:11,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Word has length 17 [2021-10-07 15:00:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:12,613 INFO L225 Difference]: With dead ends: 80260 [2021-10-07 15:00:12,613 INFO L226 Difference]: Without dead ends: 80260 [2021-10-07 15:00:12,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 37.5ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:00:12,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80260 states. [2021-10-07 15:00:14,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80260 to 60830. [2021-10-07 15:00:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60830 states, 60773 states have (on average 3.624866305760782) internal successors, (220294), 60829 states have internal predecessors, (220294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60830 states to 60830 states and 220294 transitions. [2021-10-07 15:00:15,113 INFO L78 Accepts]: Start accepts. Automaton has 60830 states and 220294 transitions. Word has length 17 [2021-10-07 15:00:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:15,113 INFO L470 AbstractCegarLoop]: Abstraction has 60830 states and 220294 transitions. [2021-10-07 15:00:15,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2021-10-07 15:00:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 60830 states and 220294 transitions. [2021-10-07 15:00:15,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:15,126 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:15,126 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:15,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-07 15:00:15,126 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:15,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:15,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1173049005, now seen corresponding path program 1 times [2021-10-07 15:00:15,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:15,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554628006] [2021-10-07 15:00:15,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:15,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:15,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:15,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554628006] [2021-10-07 15:00:15,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554628006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:15,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:15,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 15:00:15,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567097740] [2021-10-07 15:00:15,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:00:15,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:15,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:00:15,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:00:15,175 INFO L87 Difference]: Start difference. First operand 60830 states and 220294 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2021-10-07 15:00:16,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:16,695 INFO L93 Difference]: Finished difference Result 84404 states and 303166 transitions. [2021-10-07 15:00:16,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:00:16,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) Word has length 17 [2021-10-07 15:00:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:17,189 INFO L225 Difference]: With dead ends: 84404 [2021-10-07 15:00:17,189 INFO L226 Difference]: Without dead ends: 84404 [2021-10-07 15:00:17,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 79.3ms TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:00:17,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84404 states. [2021-10-07 15:00:19,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84404 to 62388. [2021-10-07 15:00:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62388 states, 62331 states have (on average 3.6282106816832718) internal successors, (226150), 62387 states have internal predecessors, (226150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:20,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62388 states to 62388 states and 226150 transitions. [2021-10-07 15:00:20,231 INFO L78 Accepts]: Start accepts. Automaton has 62388 states and 226150 transitions. Word has length 17 [2021-10-07 15:00:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:20,231 INFO L470 AbstractCegarLoop]: Abstraction has 62388 states and 226150 transitions. [2021-10-07 15:00:20,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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) [2021-10-07 15:00:20,231 INFO L276 IsEmpty]: Start isEmpty. Operand 62388 states and 226150 transitions. [2021-10-07 15:00:20,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:20,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:20,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:20,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-07 15:00:20,248 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:20,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:20,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1280844165, now seen corresponding path program 1 times [2021-10-07 15:00:20,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:20,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054589389] [2021-10-07 15:00:20,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:20,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:20,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:20,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054589389] [2021-10-07 15:00:20,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054589389] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:20,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:20,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 15:00:20,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835515685] [2021-10-07 15:00:20,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:00:20,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:20,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:00:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:00:20,273 INFO L87 Difference]: Start difference. First operand 62388 states and 226150 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-10-07 15:00:20,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:20,861 INFO L93 Difference]: Finished difference Result 70514 states and 253008 transitions. [2021-10-07 15:00:20,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:00:20,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) Word has length 17 [2021-10-07 15:00:20,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:21,789 INFO L225 Difference]: With dead ends: 70514 [2021-10-07 15:00:21,790 INFO L226 Difference]: Without dead ends: 70514 [2021-10-07 15:00:21,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:00:21,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70514 states. [2021-10-07 15:00:23,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70514 to 59688. [2021-10-07 15:00:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59688 states, 59631 states have (on average 3.6154349247874427) internal successors, (215592), 59687 states have internal predecessors, (215592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:24,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59688 states to 59688 states and 215592 transitions. [2021-10-07 15:00:24,122 INFO L78 Accepts]: Start accepts. Automaton has 59688 states and 215592 transitions. Word has length 17 [2021-10-07 15:00:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:24,123 INFO L470 AbstractCegarLoop]: Abstraction has 59688 states and 215592 transitions. [2021-10-07 15:00:24,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2021-10-07 15:00:24,123 INFO L276 IsEmpty]: Start isEmpty. Operand 59688 states and 215592 transitions. [2021-10-07 15:00:24,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:24,134 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:24,134 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:24,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-07 15:00:24,135 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:24,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:24,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679336, now seen corresponding path program 1 times [2021-10-07 15:00:24,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:24,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28348478] [2021-10-07 15:00:24,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:24,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:24,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:24,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28348478] [2021-10-07 15:00:24,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28348478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:24,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:24,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:00:24,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083056267] [2021-10-07 15:00:24,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:00:24,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:24,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:00:24,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:00:24,175 INFO L87 Difference]: Start difference. First operand 59688 states and 215592 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-10-07 15:00:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:25,102 INFO L93 Difference]: Finished difference Result 59762 states and 215041 transitions. [2021-10-07 15:00:25,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:00:25,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) Word has length 17 [2021-10-07 15:00:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:25,460 INFO L225 Difference]: With dead ends: 59762 [2021-10-07 15:00:25,460 INFO L226 Difference]: Without dead ends: 59762 [2021-10-07 15:00:25,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:00:25,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59762 states. [2021-10-07 15:00:26,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59762 to 58894. [2021-10-07 15:00:27,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58894 states, 58837 states have (on average 3.6140183897887384) internal successors, (212638), 58893 states have internal predecessors, (212638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:27,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58894 states to 58894 states and 212638 transitions. [2021-10-07 15:00:27,666 INFO L78 Accepts]: Start accepts. Automaton has 58894 states and 212638 transitions. Word has length 17 [2021-10-07 15:00:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:27,666 INFO L470 AbstractCegarLoop]: Abstraction has 58894 states and 212638 transitions. [2021-10-07 15:00:27,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-10-07 15:00:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 58894 states and 212638 transitions. [2021-10-07 15:00:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-07 15:00:27,681 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:27,681 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:27,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-07 15:00:27,681 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:27,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1399679262, now seen corresponding path program 1 times [2021-10-07 15:00:27,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:27,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168125485] [2021-10-07 15:00:27,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:27,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:27,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:27,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168125485] [2021-10-07 15:00:27,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168125485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:27,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:27,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-07 15:00:27,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422323192] [2021-10-07 15:00:27,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:00:27,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:27,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:00:27,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:00:27,722 INFO L87 Difference]: Start difference. First operand 58894 states and 212638 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-10-07 15:00:28,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:28,823 INFO L93 Difference]: Finished difference Result 58936 states and 210623 transitions. [2021-10-07 15:00:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:00:28,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) Word has length 17 [2021-10-07 15:00:28,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:29,165 INFO L225 Difference]: With dead ends: 58936 [2021-10-07 15:00:29,166 INFO L226 Difference]: Without dead ends: 58910 [2021-10-07 15:00:29,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:00:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58910 states. [2021-10-07 15:00:30,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58910 to 57974. [2021-10-07 15:00:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57974 states, 57922 states have (on average 3.5918821863885917) internal successors, (208049), 57973 states have internal predecessors, (208049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57974 states to 57974 states and 208049 transitions. [2021-10-07 15:00:31,390 INFO L78 Accepts]: Start accepts. Automaton has 57974 states and 208049 transitions. Word has length 17 [2021-10-07 15:00:31,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:31,390 INFO L470 AbstractCegarLoop]: Abstraction has 57974 states and 208049 transitions. [2021-10-07 15:00:31,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 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) [2021-10-07 15:00:31,391 INFO L276 IsEmpty]: Start isEmpty. Operand 57974 states and 208049 transitions. [2021-10-07 15:00:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:31,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:31,410 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:31,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-07 15:00:31,411 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:31,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 278991862, now seen corresponding path program 1 times [2021-10-07 15:00:31,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:31,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880990303] [2021-10-07 15:00:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:31,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:31,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:31,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:31,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880990303] [2021-10-07 15:00:31,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880990303] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:31,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:31,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:00:31,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450749121] [2021-10-07 15:00:31,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:00:31,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:31,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:00:31,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:00:31,464 INFO L87 Difference]: Start difference. First operand 57974 states and 208049 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:33,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:33,331 INFO L93 Difference]: Finished difference Result 97476 states and 345184 transitions. [2021-10-07 15:00:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:00:33,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:33,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:34,278 INFO L225 Difference]: With dead ends: 97476 [2021-10-07 15:00:34,278 INFO L226 Difference]: Without dead ends: 97476 [2021-10-07 15:00:34,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:00:34,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97476 states. [2021-10-07 15:00:36,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97476 to 58124. [2021-10-07 15:00:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58124 states, 58072 states have (on average 3.591834274693484) internal successors, (208585), 58123 states have internal predecessors, (208585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:37,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58124 states to 58124 states and 208585 transitions. [2021-10-07 15:00:37,198 INFO L78 Accepts]: Start accepts. Automaton has 58124 states and 208585 transitions. Word has length 18 [2021-10-07 15:00:37,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:37,198 INFO L470 AbstractCegarLoop]: Abstraction has 58124 states and 208585 transitions. [2021-10-07 15:00:37,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 58124 states and 208585 transitions. [2021-10-07 15:00:37,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:37,209 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:37,210 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:37,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-07 15:00:37,210 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:37,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1535780810, now seen corresponding path program 2 times [2021-10-07 15:00:37,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:37,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294935061] [2021-10-07 15:00:37,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:37,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:37,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:37,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:37,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294935061] [2021-10-07 15:00:37,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294935061] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:37,251 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:37,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:00:37,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785944953] [2021-10-07 15:00:37,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:00:37,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:37,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:00:37,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:00:37,252 INFO L87 Difference]: Start difference. First operand 58124 states and 208585 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:00:39,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:39,051 INFO L93 Difference]: Finished difference Result 102536 states and 361845 transitions. [2021-10-07 15:00:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:00:39,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:39,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:40,293 INFO L225 Difference]: With dead ends: 102536 [2021-10-07 15:00:40,294 INFO L226 Difference]: Without dead ends: 102536 [2021-10-07 15:00:40,294 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 98.8ms TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-10-07 15:00:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102536 states. [2021-10-07 15:00:42,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102536 to 58146. [2021-10-07 15:00:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58146 states, 58094 states have (on average 3.58735841911385) internal successors, (208404), 58145 states have internal predecessors, (208404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:42,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58146 states to 58146 states and 208404 transitions. [2021-10-07 15:00:42,936 INFO L78 Accepts]: Start accepts. Automaton has 58146 states and 208404 transitions. Word has length 18 [2021-10-07 15:00:42,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:42,936 INFO L470 AbstractCegarLoop]: Abstraction has 58146 states and 208404 transitions. [2021-10-07 15:00:42,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:00:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 58146 states and 208404 transitions. [2021-10-07 15:00:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:42,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:42,949 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:42,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-07 15:00:42,949 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:42,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:42,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1067618634, now seen corresponding path program 3 times [2021-10-07 15:00:42,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:42,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947269767] [2021-10-07 15:00:42,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:42,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:42,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:42,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:42,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947269767] [2021-10-07 15:00:42,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947269767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:42,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:42,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:00:42,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690161536] [2021-10-07 15:00:42,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:00:42,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:42,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:00:42,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:00:42,994 INFO L87 Difference]: Start difference. First operand 58146 states and 208404 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:44,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:44,692 INFO L93 Difference]: Finished difference Result 80520 states and 290031 transitions. [2021-10-07 15:00:44,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-07 15:00:44,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:45,658 INFO L225 Difference]: With dead ends: 80520 [2021-10-07 15:00:45,658 INFO L226 Difference]: Without dead ends: 80520 [2021-10-07 15:00:45,658 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 41.0ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:00:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80520 states. [2021-10-07 15:00:47,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80520 to 57526. [2021-10-07 15:00:47,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57526 states, 57474 states have (on average 3.584786164178585) internal successors, (206032), 57525 states have internal predecessors, (206032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:48,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57526 states to 57526 states and 206032 transitions. [2021-10-07 15:00:48,171 INFO L78 Accepts]: Start accepts. Automaton has 57526 states and 206032 transitions. Word has length 18 [2021-10-07 15:00:48,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:48,171 INFO L470 AbstractCegarLoop]: Abstraction has 57526 states and 206032 transitions. [2021-10-07 15:00:48,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:48,172 INFO L276 IsEmpty]: Start isEmpty. Operand 57526 states and 206032 transitions. [2021-10-07 15:00:48,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:48,185 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:48,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:48,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-07 15:00:48,186 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:48,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1482637066, now seen corresponding path program 4 times [2021-10-07 15:00:48,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:48,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323974963] [2021-10-07 15:00:48,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:48,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:48,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:48,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:48,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323974963] [2021-10-07 15:00:48,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323974963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:48,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:48,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:00:48,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218747931] [2021-10-07 15:00:48,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:00:48,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:48,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:00:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:00:48,223 INFO L87 Difference]: Start difference. First operand 57526 states and 206032 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:49,697 INFO L93 Difference]: Finished difference Result 93882 states and 333047 transitions. [2021-10-07 15:00:49,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-07 15:00:49,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:49,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:50,289 INFO L225 Difference]: With dead ends: 93882 [2021-10-07 15:00:50,289 INFO L226 Difference]: Without dead ends: 93882 [2021-10-07 15:00:50,289 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 50.8ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-07 15:00:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93882 states. [2021-10-07 15:00:52,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93882 to 56946. [2021-10-07 15:00:52,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56946 states, 56894 states have (on average 3.5827152248040215) internal successors, (203835), 56945 states have internal predecessors, (203835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:53,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56946 states to 56946 states and 203835 transitions. [2021-10-07 15:00:53,199 INFO L78 Accepts]: Start accepts. Automaton has 56946 states and 203835 transitions. Word has length 18 [2021-10-07 15:00:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:53,200 INFO L470 AbstractCegarLoop]: Abstraction has 56946 states and 203835 transitions. [2021-10-07 15:00:53,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) [2021-10-07 15:00:53,202 INFO L276 IsEmpty]: Start isEmpty. Operand 56946 states and 203835 transitions. [2021-10-07 15:00:53,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:53,239 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:53,239 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:53,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-07 15:00:53,239 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:53,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:53,240 INFO L82 PathProgramCache]: Analyzing trace with hash 383674968, now seen corresponding path program 1 times [2021-10-07 15:00:53,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:53,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881654211] [2021-10-07 15:00:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:53,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:53,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:53,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:53,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881654211] [2021-10-07 15:00:53,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881654211] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:53,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:53,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:00:53,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952931918] [2021-10-07 15:00:53,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:00:53,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:53,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:00:53,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:00:53,346 INFO L87 Difference]: Start difference. First operand 56946 states and 203835 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:00:54,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:54,982 INFO L93 Difference]: Finished difference Result 88762 states and 314983 transitions. [2021-10-07 15:00:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:00:54,986 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:54,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:00:55,552 INFO L225 Difference]: With dead ends: 88762 [2021-10-07 15:00:55,553 INFO L226 Difference]: Without dead ends: 88762 [2021-10-07 15:00:55,553 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 97.6ms TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2021-10-07 15:00:55,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88762 states. [2021-10-07 15:00:57,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88762 to 61356. [2021-10-07 15:00:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61356 states, 61304 states have (on average 3.5858345295576144) internal successors, (219826), 61355 states have internal predecessors, (219826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:00:58,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61356 states to 61356 states and 219826 transitions. [2021-10-07 15:00:58,090 INFO L78 Accepts]: Start accepts. Automaton has 61356 states and 219826 transitions. Word has length 18 [2021-10-07 15:00:58,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:00:58,090 INFO L470 AbstractCegarLoop]: Abstraction has 61356 states and 219826 transitions. [2021-10-07 15:00:58,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:00:58,091 INFO L276 IsEmpty]: Start isEmpty. Operand 61356 states and 219826 transitions. [2021-10-07 15:00:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:00:58,108 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:00:58,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:00:58,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-07 15:00:58,109 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:00:58,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:00:58,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1372320922, now seen corresponding path program 1 times [2021-10-07 15:00:58,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:00:58,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445273794] [2021-10-07 15:00:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:00:58,109 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:00:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:00:58,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:00:58,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:00:58,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445273794] [2021-10-07 15:00:58,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445273794] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:00:58,148 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:00:58,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:00:58,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930366325] [2021-10-07 15:00:58,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-07 15:00:58,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:00:58,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-07 15:00:58,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-07 15:00:58,149 INFO L87 Difference]: Start difference. First operand 61356 states and 219826 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:00:59,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:00:59,839 INFO L93 Difference]: Finished difference Result 73238 states and 256481 transitions. [2021-10-07 15:00:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:00:59,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:00:59,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:00,161 INFO L225 Difference]: With dead ends: 73238 [2021-10-07 15:01:00,162 INFO L226 Difference]: Without dead ends: 73238 [2021-10-07 15:01:00,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 86.7ms TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:01:00,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73238 states. [2021-10-07 15:01:02,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73238 to 57944. [2021-10-07 15:01:02,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57944 states, 57892 states have (on average 3.54753679264838) internal successors, (205374), 57943 states have internal predecessors, (205374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57944 states to 57944 states and 205374 transitions. [2021-10-07 15:01:03,070 INFO L78 Accepts]: Start accepts. Automaton has 57944 states and 205374 transitions. Word has length 18 [2021-10-07 15:01:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:03,071 INFO L470 AbstractCegarLoop]: Abstraction has 57944 states and 205374 transitions. [2021-10-07 15:01:03,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:01:03,071 INFO L276 IsEmpty]: Start isEmpty. Operand 57944 states and 205374 transitions. [2021-10-07 15:01:03,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-07 15:01:03,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:03,090 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:03,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-07 15:01:03,091 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:03,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:03,092 INFO L82 PathProgramCache]: Analyzing trace with hash 88312379, now seen corresponding path program 1 times [2021-10-07 15:01:03,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:03,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819996377] [2021-10-07 15:01:03,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:03,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:03,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:03,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819996377] [2021-10-07 15:01:03,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819996377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:03,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:03,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:01:03,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284331073] [2021-10-07 15:01:03,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:01:03,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:03,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:01:03,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:01:03,194 INFO L87 Difference]: Start difference. First operand 57944 states and 205374 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:01:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:05,339 INFO L93 Difference]: Finished difference Result 88830 states and 312741 transitions. [2021-10-07 15:01:05,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:01:05,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-07 15:01:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:05,934 INFO L225 Difference]: With dead ends: 88830 [2021-10-07 15:01:05,934 INFO L226 Difference]: Without dead ends: 88830 [2021-10-07 15:01:05,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 122.1ms TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2021-10-07 15:01:06,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88830 states. [2021-10-07 15:01:08,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88830 to 52374. [2021-10-07 15:01:08,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52374 states, 52322 states have (on average 3.543404304116815) internal successors, (185398), 52373 states have internal predecessors, (185398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:08,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52374 states to 52374 states and 185398 transitions. [2021-10-07 15:01:08,328 INFO L78 Accepts]: Start accepts. Automaton has 52374 states and 185398 transitions. Word has length 18 [2021-10-07 15:01:08,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:08,328 INFO L470 AbstractCegarLoop]: Abstraction has 52374 states and 185398 transitions. [2021-10-07 15:01:08,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 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) [2021-10-07 15:01:08,328 INFO L276 IsEmpty]: Start isEmpty. Operand 52374 states and 185398 transitions. [2021-10-07 15:01:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-07 15:01:08,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:08,344 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:08,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-07 15:01:08,344 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:08,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:08,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1562292689, now seen corresponding path program 1 times [2021-10-07 15:01:08,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:08,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402087743] [2021-10-07 15:01:08,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:08,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:08,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:08,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:08,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402087743] [2021-10-07 15:01:08,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402087743] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:08,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:08,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:08,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671700204] [2021-10-07 15:01:08,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:08,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:08,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:08,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:08,418 INFO L87 Difference]: Start difference. First operand 52374 states and 185398 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:10,941 INFO L93 Difference]: Finished difference Result 101666 states and 354234 transitions. [2021-10-07 15:01:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-07 15:01:10,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-07 15:01:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:12,116 INFO L225 Difference]: With dead ends: 101666 [2021-10-07 15:01:12,116 INFO L226 Difference]: Without dead ends: 101666 [2021-10-07 15:01:12,117 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 301.8ms TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2021-10-07 15:01:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101666 states. [2021-10-07 15:01:14,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101666 to 55888. [2021-10-07 15:01:14,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55888 states, 55836 states have (on average 3.537269861737947) internal successors, (197507), 55887 states have internal predecessors, (197507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:14,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55888 states to 55888 states and 197507 transitions. [2021-10-07 15:01:14,724 INFO L78 Accepts]: Start accepts. Automaton has 55888 states and 197507 transitions. Word has length 19 [2021-10-07 15:01:14,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:14,724 INFO L470 AbstractCegarLoop]: Abstraction has 55888 states and 197507 transitions. [2021-10-07 15:01:14,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:14,725 INFO L276 IsEmpty]: Start isEmpty. Operand 55888 states and 197507 transitions. [2021-10-07 15:01:14,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-07 15:01:14,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:14,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:14,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-07 15:01:14,743 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:14,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:14,744 INFO L82 PathProgramCache]: Analyzing trace with hash 138101507, now seen corresponding path program 2 times [2021-10-07 15:01:14,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:14,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599954777] [2021-10-07 15:01:14,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:14,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:14,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:14,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:14,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:14,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599954777] [2021-10-07 15:01:14,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599954777] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:14,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:14,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:14,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91553960] [2021-10-07 15:01:14,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:14,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:14,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:14,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:14,819 INFO L87 Difference]: Start difference. First operand 55888 states and 197507 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:17,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:17,253 INFO L93 Difference]: Finished difference Result 109824 states and 381172 transitions. [2021-10-07 15:01:17,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-07 15:01:17,254 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-07 15:01:17,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:19,062 INFO L225 Difference]: With dead ends: 109824 [2021-10-07 15:01:19,062 INFO L226 Difference]: Without dead ends: 109824 [2021-10-07 15:01:19,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 263.2ms TimeCoverageRelationStatistics Valid=321, Invalid=939, Unknown=0, NotChecked=0, Total=1260 [2021-10-07 15:01:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109824 states. [2021-10-07 15:01:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109824 to 56020. [2021-10-07 15:01:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56020 states, 55968 states have (on average 3.5370390222984565) internal successors, (197961), 56019 states have internal predecessors, (197961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56020 states to 56020 states and 197961 transitions. [2021-10-07 15:01:22,421 INFO L78 Accepts]: Start accepts. Automaton has 56020 states and 197961 transitions. Word has length 19 [2021-10-07 15:01:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:22,421 INFO L470 AbstractCegarLoop]: Abstraction has 56020 states and 197961 transitions. [2021-10-07 15:01:22,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:22,421 INFO L276 IsEmpty]: Start isEmpty. Operand 56020 states and 197961 transitions. [2021-10-07 15:01:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-07 15:01:22,435 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:22,435 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:22,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-07 15:01:22,435 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:22,436 INFO L82 PathProgramCache]: Analyzing trace with hash 443853231, now seen corresponding path program 3 times [2021-10-07 15:01:22,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:22,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556810362] [2021-10-07 15:01:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:22,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:22,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:22,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556810362] [2021-10-07 15:01:22,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556810362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:22,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:22,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-07 15:01:22,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215524519] [2021-10-07 15:01:22,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-07 15:01:22,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-07 15:01:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:01:22,517 INFO L87 Difference]: Start difference. First operand 56020 states and 197961 transitions. Second operand has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:25,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:25,869 INFO L93 Difference]: Finished difference Result 116368 states and 404132 transitions. [2021-10-07 15:01:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-07 15:01:25,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-07 15:01:25,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:26,567 INFO L225 Difference]: With dead ends: 116368 [2021-10-07 15:01:26,567 INFO L226 Difference]: Without dead ends: 116368 [2021-10-07 15:01:26,567 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 404.1ms TimeCoverageRelationStatistics Valid=499, Invalid=1757, Unknown=0, NotChecked=0, Total=2256 [2021-10-07 15:01:26,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116368 states. [2021-10-07 15:01:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116368 to 55042. [2021-10-07 15:01:29,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55042 states, 54990 states have (on average 3.540643753409711) internal successors, (194700), 55041 states have internal predecessors, (194700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55042 states to 55042 states and 194700 transitions. [2021-10-07 15:01:29,795 INFO L78 Accepts]: Start accepts. Automaton has 55042 states and 194700 transitions. Word has length 19 [2021-10-07 15:01:29,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:29,795 INFO L470 AbstractCegarLoop]: Abstraction has 55042 states and 194700 transitions. [2021-10-07 15:01:29,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 55042 states and 194700 transitions. [2021-10-07 15:01:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-07 15:01:29,820 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:29,820 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:29,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-07 15:01:29,821 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:29,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:29,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1184272337, now seen corresponding path program 4 times [2021-10-07 15:01:29,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:29,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204444902] [2021-10-07 15:01:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:29,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:29,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:29,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204444902] [2021-10-07 15:01:29,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204444902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:29,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:29,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:29,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074638067] [2021-10-07 15:01:29,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:29,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:29,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:29,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:29,899 INFO L87 Difference]: Start difference. First operand 55042 states and 194700 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:32,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:32,021 INFO L93 Difference]: Finished difference Result 98076 states and 344246 transitions. [2021-10-07 15:01:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-07 15:01:32,022 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-07 15:01:32,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:32,559 INFO L225 Difference]: With dead ends: 98076 [2021-10-07 15:01:32,559 INFO L226 Difference]: Without dead ends: 98076 [2021-10-07 15:01:32,559 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 243.9ms TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-10-07 15:01:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98076 states. [2021-10-07 15:01:34,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98076 to 55306. [2021-10-07 15:01:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55306 states, 55254 states have (on average 3.540648640822384) internal successors, (195635), 55305 states have internal predecessors, (195635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55306 states to 55306 states and 195635 transitions. [2021-10-07 15:01:35,684 INFO L78 Accepts]: Start accepts. Automaton has 55306 states and 195635 transitions. Word has length 19 [2021-10-07 15:01:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:35,684 INFO L470 AbstractCegarLoop]: Abstraction has 55306 states and 195635 transitions. [2021-10-07 15:01:35,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 55306 states and 195635 transitions. [2021-10-07 15:01:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-07 15:01:35,705 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:35,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:35,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-07 15:01:35,705 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:35,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1362179587, now seen corresponding path program 5 times [2021-10-07 15:01:35,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:35,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932898484] [2021-10-07 15:01:35,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:35,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:35,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:35,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:35,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932898484] [2021-10-07 15:01:35,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932898484] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:35,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:35,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:35,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106951974] [2021-10-07 15:01:35,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:35,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:35,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:35,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:35,781 INFO L87 Difference]: Start difference. First operand 55306 states and 195635 transitions. Second operand has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:38,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:38,347 INFO L93 Difference]: Finished difference Result 125308 states and 437512 transitions. [2021-10-07 15:01:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-07 15:01:38,348 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-07 15:01:38,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:38,992 INFO L225 Difference]: With dead ends: 125308 [2021-10-07 15:01:38,992 INFO L226 Difference]: Without dead ends: 125308 [2021-10-07 15:01:38,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 727 ImplicationChecksByTransitivity, 333.7ms TimeCoverageRelationStatistics Valid=495, Invalid=1761, Unknown=0, NotChecked=0, Total=2256 [2021-10-07 15:01:39,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125308 states. [2021-10-07 15:01:41,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125308 to 51378. [2021-10-07 15:01:41,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51378 states, 51327 states have (on average 3.532857950006819) internal successors, (181331), 51377 states have internal predecessors, (181331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:42,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51378 states to 51378 states and 181331 transitions. [2021-10-07 15:01:42,182 INFO L78 Accepts]: Start accepts. Automaton has 51378 states and 181331 transitions. Word has length 19 [2021-10-07 15:01:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:42,183 INFO L470 AbstractCegarLoop]: Abstraction has 51378 states and 181331 transitions. [2021-10-07 15:01:42,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:42,183 INFO L276 IsEmpty]: Start isEmpty. Operand 51378 states and 181331 transitions. [2021-10-07 15:01:42,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-07 15:01:42,201 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:42,201 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:42,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-07 15:01:42,201 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:42,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:42,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1562687137, now seen corresponding path program 1 times [2021-10-07 15:01:42,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:42,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096638903] [2021-10-07 15:01:42,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:42,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:42,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:42,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096638903] [2021-10-07 15:01:42,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096638903] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:42,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:42,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 15:01:42,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575329620] [2021-10-07 15:01:42,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:01:42,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:01:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:01:42,233 INFO L87 Difference]: Start difference. First operand 51378 states and 181331 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2021-10-07 15:01:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:43,298 INFO L93 Difference]: Finished difference Result 56340 states and 198340 transitions. [2021-10-07 15:01:43,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-07 15:01:43,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 [2021-10-07 15:01:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:43,652 INFO L225 Difference]: With dead ends: 56340 [2021-10-07 15:01:43,653 INFO L226 Difference]: Without dead ends: 56340 [2021-10-07 15:01:43,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 22.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:01:43,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56340 states. [2021-10-07 15:01:44,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56340 to 42576. [2021-10-07 15:01:45,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42576 states, 42525 states have (on average 3.52994708994709) internal successors, (150111), 42575 states have internal predecessors, (150111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42576 states to 42576 states and 150111 transitions. [2021-10-07 15:01:45,626 INFO L78 Accepts]: Start accepts. Automaton has 42576 states and 150111 transitions. Word has length 20 [2021-10-07 15:01:45,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:45,626 INFO L470 AbstractCegarLoop]: Abstraction has 42576 states and 150111 transitions. [2021-10-07 15:01:45,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) [2021-10-07 15:01:45,627 INFO L276 IsEmpty]: Start isEmpty. Operand 42576 states and 150111 transitions. [2021-10-07 15:01:45,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-07 15:01:45,644 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:45,645 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:45,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-07 15:01:45,645 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:45,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:45,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1954710888, now seen corresponding path program 1 times [2021-10-07 15:01:45,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:45,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077977782] [2021-10-07 15:01:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:45,646 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:45,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:45,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:45,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077977782] [2021-10-07 15:01:45,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077977782] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:45,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:45,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:45,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089052343] [2021-10-07 15:01:45,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:45,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:45,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:45,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:45,762 INFO L87 Difference]: Start difference. First operand 42576 states and 150111 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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) [2021-10-07 15:01:48,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:48,127 INFO L93 Difference]: Finished difference Result 89202 states and 311493 transitions. [2021-10-07 15:01:48,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-07 15:01:48,128 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 [2021-10-07 15:01:48,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:48,622 INFO L225 Difference]: With dead ends: 89202 [2021-10-07 15:01:48,623 INFO L226 Difference]: Without dead ends: 89202 [2021-10-07 15:01:48,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 432.5ms TimeCoverageRelationStatistics Valid=631, Invalid=2449, Unknown=0, NotChecked=0, Total=3080 [2021-10-07 15:01:48,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89202 states. [2021-10-07 15:01:50,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89202 to 42874. [2021-10-07 15:01:50,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42874 states, 42823 states have (on average 3.529528524391098) internal successors, (151145), 42873 states have internal predecessors, (151145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:50,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42874 states to 42874 states and 151145 transitions. [2021-10-07 15:01:50,921 INFO L78 Accepts]: Start accepts. Automaton has 42874 states and 151145 transitions. Word has length 20 [2021-10-07 15:01:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:50,921 INFO L470 AbstractCegarLoop]: Abstraction has 42874 states and 151145 transitions. [2021-10-07 15:01:50,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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) [2021-10-07 15:01:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 42874 states and 151145 transitions. [2021-10-07 15:01:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-07 15:01:50,939 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:50,939 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:50,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-07 15:01:50,939 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:50,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:50,940 INFO L82 PathProgramCache]: Analyzing trace with hash 897594260, now seen corresponding path program 2 times [2021-10-07 15:01:50,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:50,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320298582] [2021-10-07 15:01:50,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:50,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:51,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:51,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:51,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320298582] [2021-10-07 15:01:51,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320298582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:51,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:51,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:01:51,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824025951] [2021-10-07 15:01:51,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:01:51,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:51,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:01:51,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:01:51,016 INFO L87 Difference]: Start difference. First operand 42874 states and 151145 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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) [2021-10-07 15:01:53,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:53,458 INFO L93 Difference]: Finished difference Result 103412 states and 360640 transitions. [2021-10-07 15:01:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-07 15:01:53,459 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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 [2021-10-07 15:01:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:54,475 INFO L225 Difference]: With dead ends: 103412 [2021-10-07 15:01:54,475 INFO L226 Difference]: Without dead ends: 103412 [2021-10-07 15:01:54,476 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 475.9ms TimeCoverageRelationStatistics Valid=776, Invalid=3130, Unknown=0, NotChecked=0, Total=3906 [2021-10-07 15:01:54,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103412 states. [2021-10-07 15:01:56,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103412 to 43742. [2021-10-07 15:01:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43742 states, 43691 states have (on average 3.531825776475704) internal successors, (154309), 43741 states have internal predecessors, (154309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43742 states to 43742 states and 154309 transitions. [2021-10-07 15:01:56,753 INFO L78 Accepts]: Start accepts. Automaton has 43742 states and 154309 transitions. Word has length 20 [2021-10-07 15:01:56,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:56,753 INFO L470 AbstractCegarLoop]: Abstraction has 43742 states and 154309 transitions. [2021-10-07 15:01:56,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 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) [2021-10-07 15:01:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 43742 states and 154309 transitions. [2021-10-07 15:01:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-07 15:01:56,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:56,780 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:56,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-07 15:01:56,780 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:56,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:56,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1717760441, now seen corresponding path program 1 times [2021-10-07 15:01:56,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:56,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915914453] [2021-10-07 15:01:56,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:56,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:01:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:01:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:01:56,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:01:56,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915914453] [2021-10-07 15:01:56,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915914453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:01:56,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:01:56,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:01:56,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442905572] [2021-10-07 15:01:56,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:01:56,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:01:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:01:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:01:56,847 INFO L87 Difference]: Start difference. First operand 43742 states and 154309 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-10-07 15:01:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:01:57,666 INFO L93 Difference]: Finished difference Result 67318 states and 233333 transitions. [2021-10-07 15:01:57,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-07 15:01:57,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) Word has length 21 [2021-10-07 15:01:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:01:58,470 INFO L225 Difference]: With dead ends: 67318 [2021-10-07 15:01:58,470 INFO L226 Difference]: Without dead ends: 67318 [2021-10-07 15:01:58,471 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-10-07 15:01:58,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67318 states. [2021-10-07 15:01:59,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67318 to 43560. [2021-10-07 15:01:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43560 states, 43509 states have (on average 3.528442391229401) internal successors, (153519), 43559 states have internal predecessors, (153519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:01:59,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43560 states to 43560 states and 153519 transitions. [2021-10-07 15:01:59,976 INFO L78 Accepts]: Start accepts. Automaton has 43560 states and 153519 transitions. Word has length 21 [2021-10-07 15:01:59,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:01:59,976 INFO L470 AbstractCegarLoop]: Abstraction has 43560 states and 153519 transitions. [2021-10-07 15:01:59,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-10-07 15:01:59,976 INFO L276 IsEmpty]: Start isEmpty. Operand 43560 states and 153519 transitions. [2021-10-07 15:01:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-07 15:01:59,996 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:01:59,996 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:01:59,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-07 15:01:59,997 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:01:59,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:01:59,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1720121859, now seen corresponding path program 1 times [2021-10-07 15:01:59,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:01:59,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528294938] [2021-10-07 15:01:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:01:59,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:00,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:00,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528294938] [2021-10-07 15:02:00,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528294938] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:00,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:00,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 15:02:00,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44897790] [2021-10-07 15:02:00,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:02:00,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:00,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:02:00,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:02:00,027 INFO L87 Difference]: Start difference. First operand 43560 states and 153519 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:01,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:01,153 INFO L93 Difference]: Finished difference Result 58956 states and 201522 transitions. [2021-10-07 15:02:01,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-07 15:02:01,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) Word has length 21 [2021-10-07 15:02:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:01,387 INFO L225 Difference]: With dead ends: 58956 [2021-10-07 15:02:01,387 INFO L226 Difference]: Without dead ends: 58956 [2021-10-07 15:02:01,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 22.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:02:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58956 states. [2021-10-07 15:02:03,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58956 to 38802. [2021-10-07 15:02:03,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38802 states, 38751 states have (on average 3.496322675543857) internal successors, (135486), 38801 states have internal predecessors, (135486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38802 states to 38802 states and 135486 transitions. [2021-10-07 15:02:03,308 INFO L78 Accepts]: Start accepts. Automaton has 38802 states and 135486 transitions. Word has length 21 [2021-10-07 15:02:03,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:03,309 INFO L470 AbstractCegarLoop]: Abstraction has 38802 states and 135486 transitions. [2021-10-07 15:02:03,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:03,309 INFO L276 IsEmpty]: Start isEmpty. Operand 38802 states and 135486 transitions. [2021-10-07 15:02:03,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-07 15:02:03,323 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:03,323 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:03,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-07 15:02:03,328 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:03,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:03,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2017451867, now seen corresponding path program 2 times [2021-10-07 15:02:03,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:03,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000449306] [2021-10-07 15:02:03,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:03,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:03,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:03,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:03,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000449306] [2021-10-07 15:02:03,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000449306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:03,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:03,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 15:02:03,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745748623] [2021-10-07 15:02:03,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:02:03,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:02:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:02:03,361 INFO L87 Difference]: Start difference. First operand 38802 states and 135486 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:03,919 INFO L93 Difference]: Finished difference Result 49898 states and 171801 transitions. [2021-10-07 15:02:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 15:02:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) Word has length 21 [2021-10-07 15:02:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:04,109 INFO L225 Difference]: With dead ends: 49898 [2021-10-07 15:02:04,110 INFO L226 Difference]: Without dead ends: 49898 [2021-10-07 15:02:04,110 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:02:04,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49898 states. [2021-10-07 15:02:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49898 to 39000. [2021-10-07 15:02:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39000 states, 38949 states have (on average 3.4936455364707695) internal successors, (136074), 38999 states have internal predecessors, (136074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39000 states to 39000 states and 136074 transitions. [2021-10-07 15:02:06,441 INFO L78 Accepts]: Start accepts. Automaton has 39000 states and 136074 transitions. Word has length 21 [2021-10-07 15:02:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:06,442 INFO L470 AbstractCegarLoop]: Abstraction has 39000 states and 136074 transitions. [2021-10-07 15:02:06,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 39000 states and 136074 transitions. [2021-10-07 15:02:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-07 15:02:06,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:06,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:06,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-07 15:02:06,468 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:06,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:06,470 INFO L82 PathProgramCache]: Analyzing trace with hash 347286813, now seen corresponding path program 3 times [2021-10-07 15:02:06,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:06,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076420312] [2021-10-07 15:02:06,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:06,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:06,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:06,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:06,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076420312] [2021-10-07 15:02:06,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076420312] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:06,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:06,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:02:06,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836550190] [2021-10-07 15:02:06,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:02:06,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:06,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:02:06,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:02:06,577 INFO L87 Difference]: Start difference. First operand 39000 states and 136074 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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) [2021-10-07 15:02:09,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:09,702 INFO L93 Difference]: Finished difference Result 129850 states and 451286 transitions. [2021-10-07 15:02:09,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-10-07 15:02:09,703 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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) Word has length 21 [2021-10-07 15:02:09,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:10,996 INFO L225 Difference]: With dead ends: 129850 [2021-10-07 15:02:10,997 INFO L226 Difference]: Without dead ends: 129850 [2021-10-07 15:02:10,997 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2360 ImplicationChecksByTransitivity, 669.3ms TimeCoverageRelationStatistics Valid=1123, Invalid=4729, Unknown=0, NotChecked=0, Total=5852 [2021-10-07 15:02:11,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129850 states. [2021-10-07 15:02:13,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129850 to 39726. [2021-10-07 15:02:13,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39726 states, 39675 states have (on average 3.4972904851921864) internal successors, (138755), 39725 states have internal predecessors, (138755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39726 states to 39726 states and 138755 transitions. [2021-10-07 15:02:13,589 INFO L78 Accepts]: Start accepts. Automaton has 39726 states and 138755 transitions. Word has length 21 [2021-10-07 15:02:13,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:13,589 INFO L470 AbstractCegarLoop]: Abstraction has 39726 states and 138755 transitions. [2021-10-07 15:02:13,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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) [2021-10-07 15:02:13,589 INFO L276 IsEmpty]: Start isEmpty. Operand 39726 states and 138755 transitions. [2021-10-07 15:02:13,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-07 15:02:13,606 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:13,606 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:13,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-07 15:02:13,606 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:13,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:13,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1175217407, now seen corresponding path program 1 times [2021-10-07 15:02:13,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:13,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903751094] [2021-10-07 15:02:13,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:13,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:13,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:13,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903751094] [2021-10-07 15:02:13,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903751094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:13,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:13,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-07 15:02:13,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913269885] [2021-10-07 15:02:13,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-07 15:02:13,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-07 15:02:13,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:02:13,636 INFO L87 Difference]: Start difference. First operand 39726 states and 138755 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:14,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:14,122 INFO L93 Difference]: Finished difference Result 42818 states and 148207 transitions. [2021-10-07 15:02:14,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-07 15:02:14,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) Word has length 21 [2021-10-07 15:02:14,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:14,849 INFO L225 Difference]: With dead ends: 42818 [2021-10-07 15:02:14,849 INFO L226 Difference]: Without dead ends: 42818 [2021-10-07 15:02:14,849 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:02:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42818 states. [2021-10-07 15:02:15,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42818 to 37480. [2021-10-07 15:02:15,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37480 states, 37429 states have (on average 3.477944909027759) internal successors, (130176), 37479 states have internal predecessors, (130176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:16,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37480 states to 37480 states and 130176 transitions. [2021-10-07 15:02:16,115 INFO L78 Accepts]: Start accepts. Automaton has 37480 states and 130176 transitions. Word has length 21 [2021-10-07 15:02:16,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:16,116 INFO L470 AbstractCegarLoop]: Abstraction has 37480 states and 130176 transitions. [2021-10-07 15:02:16,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 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) [2021-10-07 15:02:16,116 INFO L276 IsEmpty]: Start isEmpty. Operand 37480 states and 130176 transitions. [2021-10-07 15:02:16,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:16,133 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:16,133 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:16,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-10-07 15:02:16,134 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:16,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash 17527766, now seen corresponding path program 1 times [2021-10-07 15:02:16,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:16,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139675057] [2021-10-07 15:02:16,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:16,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:16,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:16,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139675057] [2021-10-07 15:02:16,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139675057] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:16,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:16,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:02:16,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446750631] [2021-10-07 15:02:16,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:02:16,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:16,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:02:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:02:16,202 INFO L87 Difference]: Start difference. First operand 37480 states and 130176 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:18,419 INFO L93 Difference]: Finished difference Result 77538 states and 266399 transitions. [2021-10-07 15:02:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-07 15:02:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:18,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:18,758 INFO L225 Difference]: With dead ends: 77538 [2021-10-07 15:02:18,759 INFO L226 Difference]: Without dead ends: 77538 [2021-10-07 15:02:18,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 383.2ms TimeCoverageRelationStatistics Valid=545, Invalid=1807, Unknown=0, NotChecked=0, Total=2352 [2021-10-07 15:02:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77538 states. [2021-10-07 15:02:20,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77538 to 37278. [2021-10-07 15:02:20,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37278 states, 37228 states have (on average 3.4774631997421297) internal successors, (129459), 37277 states have internal predecessors, (129459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37278 states to 37278 states and 129459 transitions. [2021-10-07 15:02:20,785 INFO L78 Accepts]: Start accepts. Automaton has 37278 states and 129459 transitions. Word has length 22 [2021-10-07 15:02:20,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:20,785 INFO L470 AbstractCegarLoop]: Abstraction has 37278 states and 129459 transitions. [2021-10-07 15:02:20,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:20,785 INFO L276 IsEmpty]: Start isEmpty. Operand 37278 states and 129459 transitions. [2021-10-07 15:02:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:20,803 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:20,803 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:20,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-10-07 15:02:20,804 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:20,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1657400557, now seen corresponding path program 1 times [2021-10-07 15:02:20,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:20,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339080809] [2021-10-07 15:02:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:20,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:20,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:20,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339080809] [2021-10-07 15:02:20,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339080809] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:20,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:20,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:02:20,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153363929] [2021-10-07 15:02:20,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:02:20,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:20,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:02:20,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:02:20,863 INFO L87 Difference]: Start difference. First operand 37278 states and 129459 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:22,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:22,783 INFO L93 Difference]: Finished difference Result 77392 states and 266693 transitions. [2021-10-07 15:02:22,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-07 15:02:22,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:22,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:23,179 INFO L225 Difference]: With dead ends: 77392 [2021-10-07 15:02:23,179 INFO L226 Difference]: Without dead ends: 77392 [2021-10-07 15:02:23,179 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 688.9ms TimeCoverageRelationStatistics Valid=401, Invalid=1491, Unknown=0, NotChecked=0, Total=1892 [2021-10-07 15:02:23,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77392 states. [2021-10-07 15:02:24,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77392 to 37222. [2021-10-07 15:02:25,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37222 states, 37172 states have (on average 3.477160228128699) internal successors, (129253), 37221 states have internal predecessors, (129253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:25,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37222 states to 37222 states and 129253 transitions. [2021-10-07 15:02:25,169 INFO L78 Accepts]: Start accepts. Automaton has 37222 states and 129253 transitions. Word has length 22 [2021-10-07 15:02:25,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:25,170 INFO L470 AbstractCegarLoop]: Abstraction has 37222 states and 129253 transitions. [2021-10-07 15:02:25,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:25,170 INFO L276 IsEmpty]: Start isEmpty. Operand 37222 states and 129253 transitions. [2021-10-07 15:02:25,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:25,187 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:25,187 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:25,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-10-07 15:02:25,187 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:25,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1871454831, now seen corresponding path program 1 times [2021-10-07 15:02:25,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:25,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531599384] [2021-10-07 15:02:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:25,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:25,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:25,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:25,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531599384] [2021-10-07 15:02:25,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531599384] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:25,233 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:25,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:25,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116758110] [2021-10-07 15:02:25,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:25,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:25,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:25,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:25,234 INFO L87 Difference]: Start difference. First operand 37222 states and 129253 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:26,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:26,029 INFO L93 Difference]: Finished difference Result 59646 states and 203112 transitions. [2021-10-07 15:02:26,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 15:02:26,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:26,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:26,813 INFO L225 Difference]: With dead ends: 59646 [2021-10-07 15:02:26,813 INFO L226 Difference]: Without dead ends: 59646 [2021-10-07 15:02:26,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 73.9ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:02:26,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59646 states. [2021-10-07 15:02:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59646 to 38122. [2021-10-07 15:02:28,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38122 states, 38072 states have (on average 3.4490439167892415) internal successors, (131312), 38121 states have internal predecessors, (131312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:28,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38122 states to 38122 states and 131312 transitions. [2021-10-07 15:02:28,249 INFO L78 Accepts]: Start accepts. Automaton has 38122 states and 131312 transitions. Word has length 22 [2021-10-07 15:02:28,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:28,250 INFO L470 AbstractCegarLoop]: Abstraction has 38122 states and 131312 transitions. [2021-10-07 15:02:28,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:28,250 INFO L276 IsEmpty]: Start isEmpty. Operand 38122 states and 131312 transitions. [2021-10-07 15:02:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:28,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:28,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:28,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-10-07 15:02:28,270 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:28,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:28,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1242456473, now seen corresponding path program 2 times [2021-10-07 15:02:28,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:28,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502627405] [2021-10-07 15:02:28,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:28,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:28,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:28,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502627405] [2021-10-07 15:02:28,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502627405] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:28,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:28,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:28,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242484842] [2021-10-07 15:02:28,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:28,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:28,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:28,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:28,306 INFO L87 Difference]: Start difference. First operand 38122 states and 131312 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:29,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:29,676 INFO L93 Difference]: Finished difference Result 49794 states and 171934 transitions. [2021-10-07 15:02:29,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 15:02:29,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:29,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:29,937 INFO L225 Difference]: With dead ends: 49794 [2021-10-07 15:02:29,937 INFO L226 Difference]: Without dead ends: 49794 [2021-10-07 15:02:29,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 75.5ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:02:30,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49794 states. [2021-10-07 15:02:31,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49794 to 38198. [2021-10-07 15:02:31,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38198 states, 38148 states have (on average 3.4485949459997904) internal successors, (131557), 38197 states have internal predecessors, (131557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38198 states to 38198 states and 131557 transitions. [2021-10-07 15:02:31,420 INFO L78 Accepts]: Start accepts. Automaton has 38198 states and 131557 transitions. Word has length 22 [2021-10-07 15:02:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:31,420 INFO L470 AbstractCegarLoop]: Abstraction has 38198 states and 131557 transitions. [2021-10-07 15:02:31,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 38198 states and 131557 transitions. [2021-10-07 15:02:31,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:31,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:31,442 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:31,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-10-07 15:02:31,442 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:31,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:31,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1556406803, now seen corresponding path program 3 times [2021-10-07 15:02:31,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:31,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76107956] [2021-10-07 15:02:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:31,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:31,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:31,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:31,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76107956] [2021-10-07 15:02:31,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76107956] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:31,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:31,479 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:31,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034407647] [2021-10-07 15:02:31,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:31,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:31,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:31,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:31,480 INFO L87 Difference]: Start difference. First operand 38198 states and 131557 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:33,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:33,051 INFO L93 Difference]: Finished difference Result 51288 states and 177495 transitions. [2021-10-07 15:02:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:02:33,051 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:33,286 INFO L225 Difference]: With dead ends: 51288 [2021-10-07 15:02:33,287 INFO L226 Difference]: Without dead ends: 51288 [2021-10-07 15:02:33,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 85.5ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:02:33,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51288 states. [2021-10-07 15:02:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51288 to 38350. [2021-10-07 15:02:34,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38350 states, 38300 states have (on average 3.4481201044386425) internal successors, (132063), 38349 states have internal predecessors, (132063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38350 states to 38350 states and 132063 transitions. [2021-10-07 15:02:35,175 INFO L78 Accepts]: Start accepts. Automaton has 38350 states and 132063 transitions. Word has length 22 [2021-10-07 15:02:35,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:35,175 INFO L470 AbstractCegarLoop]: Abstraction has 38350 states and 132063 transitions. [2021-10-07 15:02:35,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:35,175 INFO L276 IsEmpty]: Start isEmpty. Operand 38350 states and 132063 transitions. [2021-10-07 15:02:35,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:35,194 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:35,194 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:35,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-10-07 15:02:35,194 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:35,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:35,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1701501931, now seen corresponding path program 4 times [2021-10-07 15:02:35,194 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:35,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292244881] [2021-10-07 15:02:35,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:35,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:35,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:35,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292244881] [2021-10-07 15:02:35,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292244881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:35,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:35,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:35,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673680488] [2021-10-07 15:02:35,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:35,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:35,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:35,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:35,230 INFO L87 Difference]: Start difference. First operand 38350 states and 132063 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:35,894 INFO L93 Difference]: Finished difference Result 49770 states and 171498 transitions. [2021-10-07 15:02:35,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-07 15:02:35,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:35,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:36,100 INFO L225 Difference]: With dead ends: 49770 [2021-10-07 15:02:36,100 INFO L226 Difference]: Without dead ends: 49770 [2021-10-07 15:02:36,100 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 80.3ms TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-10-07 15:02:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49770 states. [2021-10-07 15:02:37,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49770 to 38258. [2021-10-07 15:02:37,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38258 states, 38208 states have (on average 3.4478119765494135) internal successors, (131734), 38257 states have internal predecessors, (131734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:37,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38258 states to 38258 states and 131734 transitions. [2021-10-07 15:02:37,771 INFO L78 Accepts]: Start accepts. Automaton has 38258 states and 131734 transitions. Word has length 22 [2021-10-07 15:02:37,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:37,771 INFO L470 AbstractCegarLoop]: Abstraction has 38258 states and 131734 transitions. [2021-10-07 15:02:37,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:37,772 INFO L276 IsEmpty]: Start isEmpty. Operand 38258 states and 131734 transitions. [2021-10-07 15:02:37,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:37,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:37,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:37,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-10-07 15:02:37,791 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:37,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:37,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1097361345, now seen corresponding path program 5 times [2021-10-07 15:02:37,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:37,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993098471] [2021-10-07 15:02:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:37,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:37,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:37,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:37,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993098471] [2021-10-07 15:02:37,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993098471] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:37,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:37,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:37,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944072623] [2021-10-07 15:02:37,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:37,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:37,826 INFO L87 Difference]: Start difference. First operand 38258 states and 131734 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:38,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:38,523 INFO L93 Difference]: Finished difference Result 50044 states and 172814 transitions. [2021-10-07 15:02:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 15:02:38,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:39,184 INFO L225 Difference]: With dead ends: 50044 [2021-10-07 15:02:39,184 INFO L226 Difference]: Without dead ends: 50044 [2021-10-07 15:02:39,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 87.3ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:02:39,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50044 states. [2021-10-07 15:02:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50044 to 38182. [2021-10-07 15:02:40,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38182 states, 38132 states have (on average 3.4482586803734394) internal successors, (131489), 38181 states have internal predecessors, (131489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38182 states to 38182 states and 131489 transitions. [2021-10-07 15:02:40,497 INFO L78 Accepts]: Start accepts. Automaton has 38182 states and 131489 transitions. Word has length 22 [2021-10-07 15:02:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:40,497 INFO L470 AbstractCegarLoop]: Abstraction has 38182 states and 131489 transitions. [2021-10-07 15:02:40,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 38182 states and 131489 transitions. [2021-10-07 15:02:40,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:40,515 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:40,515 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:40,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-10-07 15:02:40,516 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:40,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:40,516 INFO L82 PathProgramCache]: Analyzing trace with hash -245027921, now seen corresponding path program 6 times [2021-10-07 15:02:40,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:40,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77234333] [2021-10-07 15:02:40,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:40,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:40,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:40,554 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77234333] [2021-10-07 15:02:40,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77234333] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:40,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:40,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-07 15:02:40,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329590719] [2021-10-07 15:02:40,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-07 15:02:40,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:40,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-07 15:02:40,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-07 15:02:40,556 INFO L87 Difference]: Start difference. First operand 38182 states and 131489 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:41,870 INFO L93 Difference]: Finished difference Result 64534 states and 220522 transitions. [2021-10-07 15:02:41,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-07 15:02:41,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:42,204 INFO L225 Difference]: With dead ends: 64534 [2021-10-07 15:02:42,204 INFO L226 Difference]: Without dead ends: 64534 [2021-10-07 15:02:42,204 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-10-07 15:02:42,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64534 states. [2021-10-07 15:02:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64534 to 37866. [2021-10-07 15:02:43,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37866 states, 37816 states have (on average 3.4412946900782737) internal successors, (130136), 37865 states have internal predecessors, (130136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:44,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37866 states to 37866 states and 130136 transitions. [2021-10-07 15:02:44,006 INFO L78 Accepts]: Start accepts. Automaton has 37866 states and 130136 transitions. Word has length 22 [2021-10-07 15:02:44,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:44,007 INFO L470 AbstractCegarLoop]: Abstraction has 37866 states and 130136 transitions. [2021-10-07 15:02:44,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 37866 states and 130136 transitions. [2021-10-07 15:02:44,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:44,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:44,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:44,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-10-07 15:02:44,033 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:44,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:44,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2123522854, now seen corresponding path program 1 times [2021-10-07 15:02:44,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:44,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698123491] [2021-10-07 15:02:44,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:44,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:44,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:44,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:44,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698123491] [2021-10-07 15:02:44,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698123491] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:44,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:44,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:02:44,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836151215] [2021-10-07 15:02:44,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-07 15:02:44,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:44,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-07 15:02:44,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-10-07 15:02:44,114 INFO L87 Difference]: Start difference. First operand 37866 states and 130136 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:44,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:44,963 INFO L93 Difference]: Finished difference Result 44496 states and 152755 transitions. [2021-10-07 15:02:44,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-07 15:02:44,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:45,125 INFO L225 Difference]: With dead ends: 44496 [2021-10-07 15:02:45,125 INFO L226 Difference]: Without dead ends: 44496 [2021-10-07 15:02:45,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 188.4ms TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2021-10-07 15:02:45,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44496 states. [2021-10-07 15:02:46,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44496 to 32408. [2021-10-07 15:02:46,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32408 states, 32361 states have (on average 3.431630666543061) internal successors, (111051), 32407 states have internal predecessors, (111051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:46,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32408 states to 32408 states and 111051 transitions. [2021-10-07 15:02:46,721 INFO L78 Accepts]: Start accepts. Automaton has 32408 states and 111051 transitions. Word has length 22 [2021-10-07 15:02:46,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:46,722 INFO L470 AbstractCegarLoop]: Abstraction has 32408 states and 111051 transitions. [2021-10-07 15:02:46,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 32408 states and 111051 transitions. [2021-10-07 15:02:46,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:46,780 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:46,780 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:46,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-10-07 15:02:46,781 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:46,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:46,781 INFO L82 PathProgramCache]: Analyzing trace with hash 2123522798, now seen corresponding path program 1 times [2021-10-07 15:02:46,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:46,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657867043] [2021-10-07 15:02:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:46,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:46,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:46,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657867043] [2021-10-07 15:02:46,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657867043] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:46,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:46,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-07 15:02:46,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611681253] [2021-10-07 15:02:46,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-07 15:02:46,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:46,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-07 15:02:46,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:02:46,870 INFO L87 Difference]: Start difference. First operand 32408 states and 111051 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:49,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:49,077 INFO L93 Difference]: Finished difference Result 71172 states and 243668 transitions. [2021-10-07 15:02:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-07 15:02:49,077 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:49,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:49,798 INFO L225 Difference]: With dead ends: 71172 [2021-10-07 15:02:49,798 INFO L226 Difference]: Without dead ends: 71172 [2021-10-07 15:02:49,799 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1930 ImplicationChecksByTransitivity, 644.8ms TimeCoverageRelationStatistics Valid=898, Invalid=4214, Unknown=0, NotChecked=0, Total=5112 [2021-10-07 15:02:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71172 states. [2021-10-07 15:02:51,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71172 to 32568. [2021-10-07 15:02:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32568 states, 32521 states have (on average 3.4325512745610527) internal successors, (111630), 32567 states have internal predecessors, (111630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:51,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32568 states to 32568 states and 111630 transitions. [2021-10-07 15:02:51,199 INFO L78 Accepts]: Start accepts. Automaton has 32568 states and 111630 transitions. Word has length 22 [2021-10-07 15:02:51,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:51,199 INFO L470 AbstractCegarLoop]: Abstraction has 32568 states and 111630 transitions. [2021-10-07 15:02:51,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 32568 states and 111630 transitions. [2021-10-07 15:02:51,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:51,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:51,217 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:51,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-10-07 15:02:51,217 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:51,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:51,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1135300069, now seen corresponding path program 1 times [2021-10-07 15:02:51,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:51,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852509931] [2021-10-07 15:02:51,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:51,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:51,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:51,278 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:51,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852509931] [2021-10-07 15:02:51,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852509931] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:51,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:51,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:02:51,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639916269] [2021-10-07 15:02:51,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:02:51,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:02:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:02:51,280 INFO L87 Difference]: Start difference. First operand 32568 states and 111630 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:53,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:53,875 INFO L93 Difference]: Finished difference Result 71150 states and 243566 transitions. [2021-10-07 15:02:53,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-07 15:02:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:53,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:54,300 INFO L225 Difference]: With dead ends: 71150 [2021-10-07 15:02:54,300 INFO L226 Difference]: Without dead ends: 71150 [2021-10-07 15:02:54,301 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 428.3ms TimeCoverageRelationStatistics Valid=625, Invalid=2915, Unknown=0, NotChecked=0, Total=3540 [2021-10-07 15:02:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71150 states. [2021-10-07 15:02:55,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71150 to 31938. [2021-10-07 15:02:55,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31938 states, 31891 states have (on average 3.4302467780878616) internal successors, (109394), 31937 states have internal predecessors, (109394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31938 states to 31938 states and 109394 transitions. [2021-10-07 15:02:56,330 INFO L78 Accepts]: Start accepts. Automaton has 31938 states and 109394 transitions. Word has length 22 [2021-10-07 15:02:56,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:56,334 INFO L470 AbstractCegarLoop]: Abstraction has 31938 states and 109394 transitions. [2021-10-07 15:02:56,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 31938 states and 109394 transitions. [2021-10-07 15:02:56,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:56,360 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:56,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:56,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-10-07 15:02:56,364 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:56,365 INFO L82 PathProgramCache]: Analyzing trace with hash -2079981185, now seen corresponding path program 1 times [2021-10-07 15:02:56,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:56,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835068853] [2021-10-07 15:02:56,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:56,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:56,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:02:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:02:56,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:02:56,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835068853] [2021-10-07 15:02:56,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835068853] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:02:56,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:02:56,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-07 15:02:56,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198000744] [2021-10-07 15:02:56,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-07 15:02:56,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:02:56,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-07 15:02:56,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-10-07 15:02:56,478 INFO L87 Difference]: Start difference. First operand 31938 states and 109394 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:57,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:02:57,900 INFO L93 Difference]: Finished difference Result 65316 states and 223279 transitions. [2021-10-07 15:02:57,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-07 15:02:57,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:02:57,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:02:58,175 INFO L225 Difference]: With dead ends: 65316 [2021-10-07 15:02:58,175 INFO L226 Difference]: Without dead ends: 65316 [2021-10-07 15:02:58,176 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 303.3ms TimeCoverageRelationStatistics Valid=386, Invalid=1420, Unknown=0, NotChecked=0, Total=1806 [2021-10-07 15:02:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65316 states. [2021-10-07 15:02:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65316 to 31476. [2021-10-07 15:02:59,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31476 states, 31429 states have (on average 3.4253396544592576) internal successors, (107655), 31475 states have internal predecessors, (107655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31476 states to 31476 states and 107655 transitions. [2021-10-07 15:02:59,928 INFO L78 Accepts]: Start accepts. Automaton has 31476 states and 107655 transitions. Word has length 22 [2021-10-07 15:02:59,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:02:59,928 INFO L470 AbstractCegarLoop]: Abstraction has 31476 states and 107655 transitions. [2021-10-07 15:02:59,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:02:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 31476 states and 107655 transitions. [2021-10-07 15:02:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-07 15:02:59,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:02:59,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:02:59,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-10-07 15:02:59,947 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:02:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:02:59,947 INFO L82 PathProgramCache]: Analyzing trace with hash 262272322, now seen corresponding path program 2 times [2021-10-07 15:02:59,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:02:59,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304158151] [2021-10-07 15:02:59,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:02:59,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:02:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:00,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:00,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:00,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304158151] [2021-10-07 15:03:00,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304158151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:00,018 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:00,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-07 15:03:00,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706701097] [2021-10-07 15:03:00,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-07 15:03:00,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:00,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-07 15:03:00,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:03:00,019 INFO L87 Difference]: Start difference. First operand 31476 states and 107655 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:02,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:02,660 INFO L93 Difference]: Finished difference Result 77006 states and 262562 transitions. [2021-10-07 15:03:02,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-10-07 15:03:02,661 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-07 15:03:02,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:03,026 INFO L225 Difference]: With dead ends: 77006 [2021-10-07 15:03:03,026 INFO L226 Difference]: Without dead ends: 77006 [2021-10-07 15:03:03,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2596 ImplicationChecksByTransitivity, 686.7ms TimeCoverageRelationStatistics Valid=1130, Invalid=5512, Unknown=0, NotChecked=0, Total=6642 [2021-10-07 15:03:03,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77006 states. [2021-10-07 15:03:04,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77006 to 31760. [2021-10-07 15:03:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31760 states, 31713 states have (on average 3.4238009649039824) internal successors, (108579), 31759 states have internal predecessors, (108579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31760 states to 31760 states and 108579 transitions. [2021-10-07 15:03:04,912 INFO L78 Accepts]: Start accepts. Automaton has 31760 states and 108579 transitions. Word has length 22 [2021-10-07 15:03:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:04,913 INFO L470 AbstractCegarLoop]: Abstraction has 31760 states and 108579 transitions. [2021-10-07 15:03:04,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 31760 states and 108579 transitions. [2021-10-07 15:03:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-07 15:03:04,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:04,935 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:04,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-10-07 15:03:04,936 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:03:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:04,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1483643473, now seen corresponding path program 1 times [2021-10-07 15:03:04,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:04,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411837593] [2021-10-07 15:03:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:04,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:05,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:05,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411837593] [2021-10-07 15:03:05,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411837593] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:05,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:05,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-07 15:03:05,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913247361] [2021-10-07 15:03:05,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-07 15:03:05,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:05,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-07 15:03:05,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-07 15:03:05,003 INFO L87 Difference]: Start difference. First operand 31760 states and 108579 transitions. Second operand has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:08,226 INFO L93 Difference]: Finished difference Result 117952 states and 403738 transitions. [2021-10-07 15:03:08,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-10-07 15:03:08,227 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-07 15:03:08,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:09,318 INFO L225 Difference]: With dead ends: 117952 [2021-10-07 15:03:09,318 INFO L226 Difference]: Without dead ends: 117952 [2021-10-07 15:03:09,320 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3597 ImplicationChecksByTransitivity, 821.7ms TimeCoverageRelationStatistics Valid=1626, Invalid=6746, Unknown=0, NotChecked=0, Total=8372 [2021-10-07 15:03:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117952 states. [2021-10-07 15:03:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117952 to 31752. [2021-10-07 15:03:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31752 states, 31705 states have (on average 3.4237186563633495) internal successors, (108549), 31751 states have internal predecessors, (108549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:11,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31752 states to 31752 states and 108549 transitions. [2021-10-07 15:03:11,569 INFO L78 Accepts]: Start accepts. Automaton has 31752 states and 108549 transitions. Word has length 23 [2021-10-07 15:03:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:11,569 INFO L470 AbstractCegarLoop]: Abstraction has 31752 states and 108549 transitions. [2021-10-07 15:03:11,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:11,572 INFO L276 IsEmpty]: Start isEmpty. Operand 31752 states and 108549 transitions. [2021-10-07 15:03:11,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-07 15:03:11,597 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:11,598 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:11,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-10-07 15:03:11,598 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:03:11,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:11,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1497275243, now seen corresponding path program 1 times [2021-10-07 15:03:11,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:11,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937815068] [2021-10-07 15:03:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:11,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:11,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:11,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:11,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937815068] [2021-10-07 15:03:11,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937815068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:11,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:11,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-07 15:03:11,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812275973] [2021-10-07 15:03:11,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-07 15:03:11,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:11,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-07 15:03:11,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-07 15:03:11,626 INFO L87 Difference]: Start difference. First operand 31752 states and 108549 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:11,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:11,949 INFO L93 Difference]: Finished difference Result 32028 states and 107815 transitions. [2021-10-07 15:03:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-07 15:03:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-07 15:03:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:12,057 INFO L225 Difference]: With dead ends: 32028 [2021-10-07 15:03:12,057 INFO L226 Difference]: Without dead ends: 32028 [2021-10-07 15:03:12,058 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-07 15:03:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32028 states. [2021-10-07 15:03:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32028 to 25652. [2021-10-07 15:03:12,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25652 states, 25610 states have (on average 3.386372510737993) internal successors, (86725), 25651 states have internal predecessors, (86725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25652 states to 25652 states and 86725 transitions. [2021-10-07 15:03:13,088 INFO L78 Accepts]: Start accepts. Automaton has 25652 states and 86725 transitions. Word has length 23 [2021-10-07 15:03:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:13,088 INFO L470 AbstractCegarLoop]: Abstraction has 25652 states and 86725 transitions. [2021-10-07 15:03:13,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 25652 states and 86725 transitions. [2021-10-07 15:03:13,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-07 15:03:13,105 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:13,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:13,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-10-07 15:03:13,105 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:03:13,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:13,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1857834361, now seen corresponding path program 1 times [2021-10-07 15:03:13,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:13,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845397619] [2021-10-07 15:03:13,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:13,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:13,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:13,164 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845397619] [2021-10-07 15:03:13,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845397619] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:13,165 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:13,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:03:13,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376431058] [2021-10-07 15:03:13,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:03:13,165 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:03:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:03:13,166 INFO L87 Difference]: Start difference. First operand 25652 states and 86725 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:14,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:14,711 INFO L93 Difference]: Finished difference Result 41400 states and 138805 transitions. [2021-10-07 15:03:14,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-07 15:03:14,712 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-07 15:03:14,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:14,903 INFO L225 Difference]: With dead ends: 41400 [2021-10-07 15:03:14,903 INFO L226 Difference]: Without dead ends: 41400 [2021-10-07 15:03:14,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 263.9ms TimeCoverageRelationStatistics Valid=307, Invalid=1253, Unknown=0, NotChecked=0, Total=1560 [2021-10-07 15:03:14,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41400 states. [2021-10-07 15:03:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41400 to 25940. [2021-10-07 15:03:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25940 states, 25898 states have (on average 3.390802378562051) internal successors, (87815), 25939 states have internal predecessors, (87815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25940 states to 25940 states and 87815 transitions. [2021-10-07 15:03:15,931 INFO L78 Accepts]: Start accepts. Automaton has 25940 states and 87815 transitions. Word has length 23 [2021-10-07 15:03:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:15,931 INFO L470 AbstractCegarLoop]: Abstraction has 25940 states and 87815 transitions. [2021-10-07 15:03:15,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 25940 states and 87815 transitions. [2021-10-07 15:03:15,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-07 15:03:15,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:15,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:15,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-10-07 15:03:15,947 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:03:15,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:15,947 INFO L82 PathProgramCache]: Analyzing trace with hash 484876562, now seen corresponding path program 1 times [2021-10-07 15:03:15,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:15,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316674708] [2021-10-07 15:03:15,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:15,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:16,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:16,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316674708] [2021-10-07 15:03:16,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316674708] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:16,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:16,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-07 15:03:16,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128401903] [2021-10-07 15:03:16,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-07 15:03:16,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:16,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-07 15:03:16,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-10-07 15:03:16,006 INFO L87 Difference]: Start difference. First operand 25940 states and 87815 transitions. Second operand has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:18,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-07 15:03:18,029 INFO L93 Difference]: Finished difference Result 66732 states and 226669 transitions. [2021-10-07 15:03:18,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-10-07 15:03:18,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-07 15:03:18,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-07 15:03:18,308 INFO L225 Difference]: With dead ends: 66732 [2021-10-07 15:03:18,308 INFO L226 Difference]: Without dead ends: 66732 [2021-10-07 15:03:18,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 405.8ms TimeCoverageRelationStatistics Valid=658, Invalid=2648, Unknown=0, NotChecked=0, Total=3306 [2021-10-07 15:03:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66732 states. [2021-10-07 15:03:19,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66732 to 25360. [2021-10-07 15:03:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25360 states, 25318 states have (on average 3.3869578955683703) internal successors, (85751), 25359 states have internal predecessors, (85751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25360 states to 25360 states and 85751 transitions. [2021-10-07 15:03:19,583 INFO L78 Accepts]: Start accepts. Automaton has 25360 states and 85751 transitions. Word has length 23 [2021-10-07 15:03:19,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-07 15:03:19,583 INFO L470 AbstractCegarLoop]: Abstraction has 25360 states and 85751 transitions. [2021-10-07 15:03:19,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-07 15:03:19,583 INFO L276 IsEmpty]: Start isEmpty. Operand 25360 states and 85751 transitions. [2021-10-07 15:03:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-07 15:03:19,599 INFO L504 BasicCegarLoop]: Found error trace [2021-10-07 15:03:19,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-07 15:03:19,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-10-07 15:03:19,599 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2021-10-07 15:03:19,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-07 15:03:19,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1411593545, now seen corresponding path program 1 times [2021-10-07 15:03:19,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-07 15:03:19,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644676697] [2021-10-07 15:03:19,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-07 15:03:19,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-07 15:03:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-07 15:03:19,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-07 15:03:19,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-07 15:03:19,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644676697] [2021-10-07 15:03:19,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644676697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-07 15:03:19,685 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-07 15:03:19,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-07 15:03:19,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743406601] [2021-10-07 15:03:19,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-07 15:03:19,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-07 15:03:19,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-07 15:03:19,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-10-07 15:03:19,687 INFO L87 Difference]: Start difference. First operand 25360 states and 85751 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-10-07 15:03:21,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-07 15:03:21,395 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-10-07 15:03:21,397 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). [2021-10-07 15:03:21,399 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,410 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,410 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,410 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,411 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,411 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,411 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,412 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,412 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,417 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,417 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-07 15:03:21,417 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-07 15:03:21,418 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-07 15:03:21,418 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,420 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-07 15:03:21,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,422 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,423 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,423 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,425 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,425 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,425 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,426 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-07 15:03:21,443 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-07 15:03:21,444 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-07 15:03:21,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:03:21 BasicIcfg [2021-10-07 15:03:21,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-07 15:03:21,447 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.witnessprinter [2021-10-07 15:03:21,451 INFO L168 Benchmark]: Toolchain (without parser) took 548152.41 ms. Allocated memory was 152.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 127.3 MB in the beginning and 5.9 GB in the end (delta: -5.8 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,451 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-07 15:03:21,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.10 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 115.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 152.0 MB. Free memory was 115.8 MB in the beginning and 113.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,455 INFO L168 Benchmark]: Boogie Preprocessor took 32.60 ms. Allocated memory is still 152.0 MB. Free memory was 113.5 MB in the beginning and 112.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,455 INFO L168 Benchmark]: RCFGBuilder took 711.32 ms. Allocated memory is still 152.0 MB. Free memory was 111.9 MB in the beginning and 130.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,456 INFO L168 Benchmark]: TraceAbstraction took 546986.78 ms. Allocated memory was 152.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 129.6 MB in the beginning and 5.9 GB in the end (delta: -5.8 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. [2021-10-07 15:03:21,458 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 123.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 354.10 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 115.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 152.0 MB. Free memory was 115.8 MB in the beginning and 113.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.60 ms. Allocated memory is still 152.0 MB. Free memory was 113.5 MB in the beginning and 112.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 711.32 ms. Allocated memory is still 152.0 MB. Free memory was 111.9 MB in the beginning and 130.2 MB in the end (delta: -18.2 MB). Peak memory consumption was 17.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 546986.78 ms. Allocated memory was 152.0 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 129.6 MB in the beginning and 5.9 GB in the end (delta: -5.8 GB). Peak memory consumption was 2.0 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7211.5ms, 253 PlacesBefore, 86 PlacesAfterwards, 263 TransitionsBefore, 84 TransitionsAfterwards, 21384 CoEnabledTransitionPairs, 8 FixpointIterations, 73 TrivialSequentialCompositions, 120 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 39 ConcurrentYvCompositions, 12 ChoiceCompositions, 249 TotalNumberOfCompositions, 64020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30766, positive: 30034, positive conditional: 0, positive unconditional: 30034, negative: 732, negative conditional: 0, negative unconditional: 732, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15469, positive: 15295, positive conditional: 0, positive unconditional: 15295, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15469, positive: 15227, positive conditional: 0, positive unconditional: 15227, negative: 242, negative conditional: 0, negative unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 242, positive: 68, positive conditional: 0, positive unconditional: 68, negative: 174, negative conditional: 0, negative unconditional: 174, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 298, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 244, negative conditional: 0, negative unconditional: 244, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 30766, positive: 14739, positive conditional: 0, positive unconditional: 14739, negative: 558, negative conditional: 0, negative unconditional: 558, unknown: 15469, unknown conditional: 0, unknown unconditional: 15469] , Statistics on independence cache: Total cache size (in pairs): 1532, Positive cache size: 1452, Positive conditional cache size: 0, Positive unconditional cache size: 1452, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80 - 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 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that integer overflow can never occur Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 118]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 117]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (25360states) and FLOYD_HOARE automaton (currently 61 states, 12 states before enhancement),while ReachableStatesComputation was computing reachable states (7066 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 394 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 546771.2ms, OverallIterations: 89, TraceHistogramMax: 1, EmptinessCheckTime: 1801.0ms, AutomataDifference: 255934.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8219.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 17425 SDtfs, 54786 SDslu, 62409 SDs, 0 SdLazy, 47432 SolverSat, 7999 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 34123.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2204 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 2004 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29046 ImplicationChecksByTransitivity, 14969.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=85514occurred in iteration=32, InterpolantAutomatonStates: 1990, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 273806.9ms AutomataMinimizationTime, 88 MinimizatonAttempts, 3800030 StatesRemovedByMinimization, 88 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 758.9ms SsaConstructionTime, 1133.5ms SatisfiabilityAnalysisTime, 4084.7ms InterpolantComputationTime, 1476 NumberOfCodeBlocks, 1476 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 1387 ConstructedInterpolants, 0 QuantifiedInterpolants, 3697 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 89 InterpolantComputations, 89 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown