/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/chl-chromosome-opt-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-c503be2 [2021-10-13 19:03:27,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 19:03:27,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 19:03:27,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 19:03:27,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 19:03:27,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 19:03:27,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 19:03:27,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 19:03:27,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 19:03:27,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 19:03:27,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 19:03:27,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 19:03:27,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 19:03:27,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 19:03:27,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 19:03:27,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 19:03:27,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 19:03:27,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 19:03:27,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 19:03:27,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 19:03:27,550 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 19:03:27,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 19:03:27,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 19:03:27,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 19:03:27,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 19:03:27,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 19:03:27,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 19:03:27,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 19:03:27,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 19:03:27,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 19:03:27,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 19:03:27,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 19:03:27,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 19:03:27,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 19:03:27,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 19:03:27,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 19:03:27,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 19:03:27,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 19:03:27,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 19:03:27,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 19:03:27,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 19:03:27,573 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-10-13 19:03:27,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 19:03:27,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 19:03:27,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 19:03:27,605 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 19:03:27,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 19:03:27,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 19:03:27,607 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 19:03:27,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 19:03:27,608 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 19:03:27,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 19:03:27,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 19:03:27,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 19:03:27,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 19:03:27,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 19:03:27,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 19:03:27,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 19:03:27,610 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 19:03:27,610 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 19:03:27,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 19:03:27,610 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 19:03:27,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 19:03:27,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 19:03:27,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 19:03:27,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 19:03:27,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:03:27,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 19:03:27,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 19:03:27,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 19:03:27,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 19:03:27,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 19:03:27,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 19:03:27,613 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 19:03:27,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 19:03:28,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 19:03:28,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 19:03:28,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 19:03:28,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 19:03:28,102 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 19:03:28,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-10-13 19:03:28,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30b8d5474/e120301e74494ce6a0b7642605033206/FLAGd986a5f9a [2021-10-13 19:03:28,882 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 19:03:28,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2021-10-13 19:03:28,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30b8d5474/e120301e74494ce6a0b7642605033206/FLAGd986a5f9a [2021-10-13 19:03:29,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30b8d5474/e120301e74494ce6a0b7642605033206 [2021-10-13 19:03:29,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 19:03:29,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 19:03:29,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 19:03:29,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 19:03:29,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 19:03:29,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e51778d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29, skipping insertion in model container [2021-10-13 19:03:29,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 19:03:29,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 19:03:29,647 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/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-10-13 19:03:29,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:03:29,680 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 19:03:29,735 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/chl-chromosome-opt-symm.wvr.c[2566,2579] [2021-10-13 19:03:29,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 19:03:29,755 INFO L208 MainTranslator]: Completed translation [2021-10-13 19:03:29,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29 WrapperNode [2021-10-13 19:03:29,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 19:03:29,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 19:03:29,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 19:03:29,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 19:03:29,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,777 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 19:03:29,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 19:03:29,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 19:03:29,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 19:03:29,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 19:03:29,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 19:03:29,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 19:03:29,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 19:03:29,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (1/1) ... [2021-10-13 19:03:29,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 19:03:29,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:29,948 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) [2021-10-13 19:03:29,974 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 [2021-10-13 19:03:30,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 19:03:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 19:03:30,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-13 19:03:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-13 19:03:30,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 19:03:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 19:03:30,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 19:03:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 19:03:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 19:03:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 19:03:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 19:03:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 19:03:30,030 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 19:03:30,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 19:03:30,661 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-13 19:03:30,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:03:30 BoogieIcfgContainer [2021-10-13 19:03:30,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 19:03:30,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 19:03:30,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 19:03:30,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 19:03:30,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:03:29" (1/3) ... [2021-10-13 19:03:30,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba4b3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:03:30, skipping insertion in model container [2021-10-13 19:03:30,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:03:29" (2/3) ... [2021-10-13 19:03:30,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba4b3a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:03:30, skipping insertion in model container [2021-10-13 19:03:30,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:03:30" (3/3) ... [2021-10-13 19:03:30,674 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2021-10-13 19:03:30,688 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 19:03:30,689 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 19:03:30,689 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-10-13 19:03:30,689 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 19:03:30,746 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,747 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,748 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,748 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,749 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,749 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,750 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,750 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,750 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,750 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,751 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,751 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,752 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,752 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,753 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,753 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,754 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,755 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,756 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,756 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,757 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,757 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,758 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,758 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,759 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,760 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,761 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,762 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,763 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,764 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,764 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,765 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,768 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,769 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,770 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,771 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,772 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,772 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,773 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,773 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,774 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,775 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,776 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,776 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,777 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,778 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,778 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,780 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,781 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,781 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,781 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,782 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,782 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,783 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,783 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,784 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,785 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,786 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,787 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,790 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,791 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,792 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,793 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,793 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,794 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,795 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,796 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,796 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,800 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,801 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~comp~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,801 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,802 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,802 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,803 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,808 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,809 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,809 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,810 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~comp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,810 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,811 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 19:03:30,818 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 19:03:30,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 19:03:30,882 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 19:03:30,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-13 19:03:30,904 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 19:03:30,917 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 205 places, 219 transitions, 454 flow [2021-10-13 19:03:30,921 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 205 places, 219 transitions, 454 flow [2021-10-13 19:03:30,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 205 places, 219 transitions, 454 flow [2021-10-13 19:03:31,034 INFO L129 PetriNetUnfolder]: 21/217 cut-off events. [2021-10-13 19:03:31,035 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-13 19:03:31,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 217 events. 21/217 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 312 event pairs, 0 based on Foata normal form. 0/186 useless extension candidates. Maximal degree in co-relation 150. Up to 3 conditions per place. [2021-10-13 19:03:31,056 INFO L116 LiptonReduction]: Number of co-enabled transitions 4788 [2021-10-13 19:03:40,014 INFO L131 LiptonReduction]: Checked pairs total: 5627 [2021-10-13 19:03:40,015 INFO L133 LiptonReduction]: Total number of compositions: 248 [2021-10-13 19:03:40,029 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 37 transitions, 90 flow [2021-10-13 19:03:40,068 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 129 states, 115 states have (on average 2.765217391304348) internal successors, (318), 128 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 115 states have (on average 2.765217391304348) internal successors, (318), 128 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 19:03:40,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:40,077 INFO L512 BasicCegarLoop]: trace histogram [1, 1] [2021-10-13 19:03:40,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:40,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:40,083 INFO L82 PathProgramCache]: Analyzing trace with hash 28468, now seen corresponding path program 1 times [2021-10-13 19:03:40,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:40,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549389559] [2021-10-13 19:03:40,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:40,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:40,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:40,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:40,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549389559] [2021-10-13 19:03:40,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549389559] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:40,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:40,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 19:03:40,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259580615] [2021-10-13 19:03:40,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:40,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:40,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:40,336 INFO L87 Difference]: Start difference. First operand has 129 states, 115 states have (on average 2.765217391304348) internal successors, (318), 128 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:40,404 INFO L93 Difference]: Finished difference Result 213 states and 525 transitions. [2021-10-13 19:03:40,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:40,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-10-13 19:03:40,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:40,422 INFO L225 Difference]: With dead ends: 213 [2021-10-13 19:03:40,422 INFO L226 Difference]: Without dead ends: 213 [2021-10-13 19:03:40,424 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-13 19:03:40,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 111. [2021-10-13 19:03:40,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 2.69) internal successors, (269), 110 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 269 transitions. [2021-10-13 19:03:40,481 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 269 transitions. Word has length 2 [2021-10-13 19:03:40,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:40,481 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 269 transitions. [2021-10-13 19:03:40,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,482 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 269 transitions. [2021-10-13 19:03:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:03:40,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:40,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:03:40,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 19:03:40,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:40,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:40,484 INFO L82 PathProgramCache]: Analyzing trace with hash 883820, now seen corresponding path program 1 times [2021-10-13 19:03:40,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:40,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89642387] [2021-10-13 19:03:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:40,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:40,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:40,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89642387] [2021-10-13 19:03:40,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89642387] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:40,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566646152] [2021-10-13 19:03:40,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:40,547 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:40,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:40,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:40,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 19:03:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:40,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:03:40,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:40,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566646152] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:40,754 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:03:40,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 3 [2021-10-13 19:03:40,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841392211] [2021-10-13 19:03:40,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 19:03:40,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 19:03:40,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:03:40,758 INFO L87 Difference]: Start difference. First operand 111 states and 269 transitions. Second operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:40,823 INFO L93 Difference]: Finished difference Result 317 states and 787 transitions. [2021-10-13 19:03:40,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:03:40,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:03:40,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:40,829 INFO L225 Difference]: With dead ends: 317 [2021-10-13 19:03:40,829 INFO L226 Difference]: Without dead ends: 317 [2021-10-13 19:03:40,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:03:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-13 19:03:40,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 113. [2021-10-13 19:03:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 102 states have (on average 2.696078431372549) internal successors, (275), 112 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 275 transitions. [2021-10-13 19:03:40,849 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 275 transitions. Word has length 3 [2021-10-13 19:03:40,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:40,850 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 275 transitions. [2021-10-13 19:03:40,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:40,850 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 275 transitions. [2021-10-13 19:03:40,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 19:03:40,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:40,851 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-13 19:03:40,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:41,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:41,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:41,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:41,067 INFO L82 PathProgramCache]: Analyzing trace with hash 883837, now seen corresponding path program 1 times [2021-10-13 19:03:41,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:41,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934419996] [2021-10-13 19:03:41,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:41,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:41,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:41,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934419996] [2021-10-13 19:03:41,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934419996] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:41,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276439621] [2021-10-13 19:03:41,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:41,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:41,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:41,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:41,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 19:03:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:41,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:03:41,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:41,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276439621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:41,245 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:41,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2021-10-13 19:03:41,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844900754] [2021-10-13 19:03:41,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:41,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:41,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:41,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:03:41,248 INFO L87 Difference]: Start difference. First operand 113 states and 275 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:41,310 INFO L93 Difference]: Finished difference Result 213 states and 527 transitions. [2021-10-13 19:03:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-10-13 19:03:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:41,314 INFO L225 Difference]: With dead ends: 213 [2021-10-13 19:03:41,315 INFO L226 Difference]: Without dead ends: 213 [2021-10-13 19:03:41,318 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 19:03:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2021-10-13 19:03:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 111. [2021-10-13 19:03:41,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 102 states have (on average 2.656862745098039) internal successors, (271), 110 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 271 transitions. [2021-10-13 19:03:41,342 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 271 transitions. Word has length 3 [2021-10-13 19:03:41,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:41,343 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 271 transitions. [2021-10-13 19:03:41,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 271 transitions. [2021-10-13 19:03:41,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 19:03:41,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:41,344 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1] [2021-10-13 19:03:41,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:41,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:41,560 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash 27399732, now seen corresponding path program 2 times [2021-10-13 19:03:41,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:41,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231390687] [2021-10-13 19:03:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:41,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:41,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:41,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231390687] [2021-10-13 19:03:41,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231390687] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:41,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1037984946] [2021-10-13 19:03:41,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:03:41,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:41,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:41,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:41,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 19:03:41,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:03:41,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:41,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:03:41,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:03:41,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1037984946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:41,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:41,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2021-10-13 19:03:41,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836501694] [2021-10-13 19:03:41,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:41,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:41,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:03:41,782 INFO L87 Difference]: Start difference. First operand 111 states and 271 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:41,796 INFO L93 Difference]: Finished difference Result 109 states and 269 transitions. [2021-10-13 19:03:41,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:41,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 19:03:41,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:41,802 INFO L225 Difference]: With dead ends: 109 [2021-10-13 19:03:41,803 INFO L226 Difference]: Without dead ends: 109 [2021-10-13 19:03:41,803 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:03:41,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-13 19:03:41,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2021-10-13 19:03:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 98 states have (on average 2.663265306122449) internal successors, (261), 104 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 261 transitions. [2021-10-13 19:03:41,832 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 261 transitions. Word has length 4 [2021-10-13 19:03:41,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:41,833 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 261 transitions. [2021-10-13 19:03:41,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:41,833 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 261 transitions. [2021-10-13 19:03:41,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 19:03:41,834 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:41,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:41,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:42,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:42,035 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,036 INFO L82 PathProgramCache]: Analyzing trace with hash 432411712, now seen corresponding path program 1 times [2021-10-13 19:03:42,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372868621] [2021-10-13 19:03:42,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 19:03:42,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372868621] [2021-10-13 19:03:42,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372868621] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:42,111 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:42,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:03:42,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802751] [2021-10-13 19:03:42,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:42,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,115 INFO L87 Difference]: Start difference. First operand 105 states and 261 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,134 INFO L93 Difference]: Finished difference Result 107 states and 263 transitions. [2021-10-13 19:03:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:42,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 19:03:42,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,143 INFO L225 Difference]: With dead ends: 107 [2021-10-13 19:03:42,143 INFO L226 Difference]: Without dead ends: 107 [2021-10-13 19:03:42,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-13 19:03:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-13 19:03:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 100 states have (on average 2.63) internal successors, (263), 106 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 263 transitions. [2021-10-13 19:03:42,157 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 263 transitions. Word has length 8 [2021-10-13 19:03:42,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,158 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 263 transitions. [2021-10-13 19:03:42,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,158 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 263 transitions. [2021-10-13 19:03:42,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:03:42,162 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,162 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 19:03:42,163 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,163 INFO L82 PathProgramCache]: Analyzing trace with hash 217535517, now seen corresponding path program 1 times [2021-10-13 19:03:42,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107832844] [2021-10-13 19:03:42,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:03:42,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107832844] [2021-10-13 19:03:42,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107832844] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:42,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:42,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:42,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942746675] [2021-10-13 19:03:42,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:42,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:42,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,267 INFO L87 Difference]: Start difference. First operand 107 states and 263 transitions. Second operand has 3 states, 2 states have (on average 5.0) 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) [2021-10-13 19:03:42,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,288 INFO L93 Difference]: Finished difference Result 150 states and 372 transitions. [2021-10-13 19:03:42,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:42,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) 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 [2021-10-13 19:03:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,291 INFO L225 Difference]: With dead ends: 150 [2021-10-13 19:03:42,291 INFO L226 Difference]: Without dead ends: 150 [2021-10-13 19:03:42,292 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-10-13 19:03:42,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 127. [2021-10-13 19:03:42,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 120 states have (on average 2.8) internal successors, (336), 126 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 336 transitions. [2021-10-13 19:03:42,308 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 336 transitions. Word has length 10 [2021-10-13 19:03:42,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,311 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 336 transitions. [2021-10-13 19:03:42,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) 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) [2021-10-13 19:03:42,312 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 336 transitions. [2021-10-13 19:03:42,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 19:03:42,313 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 19:03:42,313 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,314 INFO L82 PathProgramCache]: Analyzing trace with hash 217668603, now seen corresponding path program 1 times [2021-10-13 19:03:42,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330782451] [2021-10-13 19:03:42,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:03:42,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330782451] [2021-10-13 19:03:42,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330782451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:42,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:42,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:42,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035297869] [2021-10-13 19:03:42,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:42,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:42,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,379 INFO L87 Difference]: Start difference. First operand 127 states and 336 transitions. Second operand has 3 states, 2 states have (on average 5.0) 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) [2021-10-13 19:03:42,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,404 INFO L93 Difference]: Finished difference Result 212 states and 571 transitions. [2021-10-13 19:03:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:42,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) 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 [2021-10-13 19:03:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,407 INFO L225 Difference]: With dead ends: 212 [2021-10-13 19:03:42,407 INFO L226 Difference]: Without dead ends: 212 [2021-10-13 19:03:42,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-13 19:03:42,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 187. [2021-10-13 19:03:42,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 180 states have (on average 2.9277777777777776) internal successors, (527), 186 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 527 transitions. [2021-10-13 19:03:42,418 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 527 transitions. Word has length 10 [2021-10-13 19:03:42,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,419 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 527 transitions. [2021-10-13 19:03:42,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) 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) [2021-10-13 19:03:42,419 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 527 transitions. [2021-10-13 19:03:42,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 19:03:42,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,420 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 19:03:42,421 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1846332738, now seen corresponding path program 1 times [2021-10-13 19:03:42,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88263252] [2021-10-13 19:03:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:03:42,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88263252] [2021-10-13 19:03:42,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88263252] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:42,462 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:42,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:42,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579679635] [2021-10-13 19:03:42,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:42,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,463 INFO L87 Difference]: Start difference. First operand 187 states and 527 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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) [2021-10-13 19:03:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,472 INFO L93 Difference]: Finished difference Result 157 states and 443 transitions. [2021-10-13 19:03:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:42,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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 [2021-10-13 19:03:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,475 INFO L225 Difference]: With dead ends: 157 [2021-10-13 19:03:42,475 INFO L226 Difference]: Without dead ends: 157 [2021-10-13 19:03:42,475 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-13 19:03:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 127. [2021-10-13 19:03:42,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 123 states have (on average 2.6747967479674797) internal successors, (329), 126 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 329 transitions. [2021-10-13 19:03:42,485 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 329 transitions. Word has length 11 [2021-10-13 19:03:42,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,485 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 329 transitions. [2021-10-13 19:03:42,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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) [2021-10-13 19:03:42,486 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 329 transitions. [2021-10-13 19:03:42,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 19:03:42,488 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,488 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 19:03:42,489 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,490 INFO L82 PathProgramCache]: Analyzing trace with hash -832316801, now seen corresponding path program 1 times [2021-10-13 19:03:42,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783442044] [2021-10-13 19:03:42,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 19:03:42,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783442044] [2021-10-13 19:03:42,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783442044] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:42,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:42,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 19:03:42,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005664042] [2021-10-13 19:03:42,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:42,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:42,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,565 INFO L87 Difference]: Start difference. First operand 127 states and 329 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,581 INFO L93 Difference]: Finished difference Result 160 states and 393 transitions. [2021-10-13 19:03:42,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:42,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 19:03:42,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,583 INFO L225 Difference]: With dead ends: 160 [2021-10-13 19:03:42,583 INFO L226 Difference]: Without dead ends: 160 [2021-10-13 19:03:42,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-10-13 19:03:42,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 135. [2021-10-13 19:03:42,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 2.6564885496183206) internal successors, (348), 134 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 348 transitions. [2021-10-13 19:03:42,590 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 348 transitions. Word has length 13 [2021-10-13 19:03:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,590 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 348 transitions. [2021-10-13 19:03:42,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 348 transitions. [2021-10-13 19:03:42,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 19:03:42,592 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 19:03:42,593 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:42,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:42,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1879193868, now seen corresponding path program 1 times [2021-10-13 19:03:42,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:42,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168750104] [2021-10-13 19:03:42,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:03:42,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:42,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168750104] [2021-10-13 19:03:42,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168750104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:42,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619606839] [2021-10-13 19:03:42,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:42,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:42,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:42,651 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:42,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-13 19:03:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:42,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 19:03:42,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 19:03:42,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619606839] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:42,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:03:42,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2021-10-13 19:03:42,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323978942] [2021-10-13 19:03:42,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 19:03:42,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:42,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 19:03:42,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:03:42,881 INFO L87 Difference]: Start difference. First operand 135 states and 348 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) [2021-10-13 19:03:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:42,906 INFO L93 Difference]: Finished difference Result 137 states and 350 transitions. [2021-10-13 19:03:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:42,907 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 17 [2021-10-13 19:03:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:42,909 INFO L225 Difference]: With dead ends: 137 [2021-10-13 19:03:42,910 INFO L226 Difference]: Without dead ends: 137 [2021-10-13 19:03:42,911 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 19:03:42,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-13 19:03:42,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-13 19:03:42,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 2.6315789473684212) internal successors, (350), 136 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:42,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 350 transitions. [2021-10-13 19:03:42,918 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 350 transitions. Word has length 17 [2021-10-13 19:03:42,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:42,919 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 350 transitions. [2021-10-13 19:03:42,919 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) [2021-10-13 19:03:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 350 transitions. [2021-10-13 19:03:42,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:03:42,924 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:42,924 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:42,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:43,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-13 19:03:43,140 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:43,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:43,140 INFO L82 PathProgramCache]: Analyzing trace with hash -765305367, now seen corresponding path program 2 times [2021-10-13 19:03:43,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:43,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909606418] [2021-10-13 19:03:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:43,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:43,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:03:43,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:43,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909606418] [2021-10-13 19:03:43,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909606418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:43,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953319511] [2021-10-13 19:03:43,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:03:43,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:43,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:43,258 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:43,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 19:03:43,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-10-13 19:03:43,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:43,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:03:43,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:03:43,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953319511] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:43,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:43,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-13 19:03:43,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411958720] [2021-10-13 19:03:43,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:43,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:43,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:43,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:03:43,491 INFO L87 Difference]: Start difference. First operand 137 states and 350 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) [2021-10-13 19:03:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:43,536 INFO L93 Difference]: Finished difference Result 178 states and 444 transitions. [2021-10-13 19:03:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:43,536 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 19 [2021-10-13 19:03:43,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:43,538 INFO L225 Difference]: With dead ends: 178 [2021-10-13 19:03:43,538 INFO L226 Difference]: Without dead ends: 178 [2021-10-13 19:03:43,539 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:03:43,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-10-13 19:03:43,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 141. [2021-10-13 19:03:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 137 states have (on average 2.627737226277372) internal successors, (360), 140 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 360 transitions. [2021-10-13 19:03:43,545 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 360 transitions. Word has length 19 [2021-10-13 19:03:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:43,546 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 360 transitions. [2021-10-13 19:03:43,546 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) [2021-10-13 19:03:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 360 transitions. [2021-10-13 19:03:43,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:03:43,547 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:43,547 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:43,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:43,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:43,761 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:43,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:43,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1694348125, now seen corresponding path program 3 times [2021-10-13 19:03:43,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:43,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325608677] [2021-10-13 19:03:43,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:43,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:03:43,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:43,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325608677] [2021-10-13 19:03:43,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325608677] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:43,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726885570] [2021-10-13 19:03:43,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:03:43,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:43,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:43,867 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:43,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-13 19:03:43,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-13 19:03:43,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:43,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:03:43,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:03:44,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726885570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:44,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:44,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-13 19:03:44,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395215179] [2021-10-13 19:03:44,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:44,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:44,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:44,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:03:44,059 INFO L87 Difference]: Start difference. First operand 141 states and 360 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) [2021-10-13 19:03:44,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:44,099 INFO L93 Difference]: Finished difference Result 176 states and 416 transitions. [2021-10-13 19:03:44,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:44,099 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 19 [2021-10-13 19:03:44,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:44,101 INFO L225 Difference]: With dead ends: 176 [2021-10-13 19:03:44,101 INFO L226 Difference]: Without dead ends: 176 [2021-10-13 19:03:44,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:03:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-13 19:03:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 137. [2021-10-13 19:03:44,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 2.601503759398496) internal successors, (346), 136 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 346 transitions. [2021-10-13 19:03:44,110 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 346 transitions. Word has length 19 [2021-10-13 19:03:44,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:44,110 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 346 transitions. [2021-10-13 19:03:44,110 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) [2021-10-13 19:03:44,111 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 346 transitions. [2021-10-13 19:03:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:03:44,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:44,112 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:44,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:44,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-13 19:03:44,328 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:44,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -579581819, now seen corresponding path program 4 times [2021-10-13 19:03:44,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:44,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981260599] [2021-10-13 19:03:44,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:44,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:44,392 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 19:03:44,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:44,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981260599] [2021-10-13 19:03:44,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981260599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:44,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793011946] [2021-10-13 19:03:44,393 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-13 19:03:44,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:44,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:44,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:44,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 19:03:44,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-13 19:03:44,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:44,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:03:44,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-13 19:03:44,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793011946] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:44,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:44,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-13 19:03:44,536 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851974239] [2021-10-13 19:03:44,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:44,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:44,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:44,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 19:03:44,538 INFO L87 Difference]: Start difference. First operand 137 states and 346 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) [2021-10-13 19:03:44,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:44,576 INFO L93 Difference]: Finished difference Result 168 states and 396 transitions. [2021-10-13 19:03:44,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:03:44,577 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 19 [2021-10-13 19:03:44,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:44,578 INFO L225 Difference]: With dead ends: 168 [2021-10-13 19:03:44,578 INFO L226 Difference]: Without dead ends: 162 [2021-10-13 19:03:44,579 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.7ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:03:44,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-10-13 19:03:44,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 137. [2021-10-13 19:03:44,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 2.5714285714285716) internal successors, (342), 136 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 342 transitions. [2021-10-13 19:03:44,586 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 342 transitions. Word has length 19 [2021-10-13 19:03:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:44,586 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 342 transitions. [2021-10-13 19:03:44,586 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) [2021-10-13 19:03:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 342 transitions. [2021-10-13 19:03:44,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 19:03:44,587 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:44,587 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:44,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:44,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-13 19:03:44,802 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:44,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:44,803 INFO L82 PathProgramCache]: Analyzing trace with hash -119321476, now seen corresponding path program 1 times [2021-10-13 19:03:44,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:44,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996154328] [2021-10-13 19:03:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:44,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:44,861 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 19:03:44,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:44,861 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996154328] [2021-10-13 19:03:44,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996154328] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:44,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78741374] [2021-10-13 19:03:44,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:44,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:44,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:44,863 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:44,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-13 19:03:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:44,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 19:03:44,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:45,039 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 19:03:45,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78741374] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:45,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:03:45,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-10-13 19:03:45,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017240465] [2021-10-13 19:03:45,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 19:03:45,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:45,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 19:03:45,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:03:45,042 INFO L87 Difference]: Start difference. First operand 137 states and 342 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:45,065 INFO L93 Difference]: Finished difference Result 139 states and 344 transitions. [2021-10-13 19:03:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 19:03:45,066 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 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 19 [2021-10-13 19:03:45,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:45,068 INFO L225 Difference]: With dead ends: 139 [2021-10-13 19:03:45,068 INFO L226 Difference]: Without dead ends: 139 [2021-10-13 19:03:45,068 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.9ms TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-10-13 19:03:45,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-13 19:03:45,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-13 19:03:45,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 2.5481481481481483) internal successors, (344), 138 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 344 transitions. [2021-10-13 19:03:45,075 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 344 transitions. Word has length 19 [2021-10-13 19:03:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:45,076 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 344 transitions. [2021-10-13 19:03:45,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 344 transitions. [2021-10-13 19:03:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 19:03:45,077 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:45,077 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:45,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:45,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-13 19:03:45,291 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:45,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:45,292 INFO L82 PathProgramCache]: Analyzing trace with hash -233482945, now seen corresponding path program 2 times [2021-10-13 19:03:45,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:45,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755763886] [2021-10-13 19:03:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:45,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 19:03:45,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:45,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755763886] [2021-10-13 19:03:45,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755763886] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:45,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187271946] [2021-10-13 19:03:45,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 19:03:45,367 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:45,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:45,368 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:45,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 19:03:45,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 19:03:45,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:45,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 19:03:45,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 19:03:45,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187271946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:45,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:03:45,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-10-13 19:03:45,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294334252] [2021-10-13 19:03:45,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 19:03:45,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 19:03:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:03:45,578 INFO L87 Difference]: Start difference. First operand 139 states and 344 transitions. Second operand has 10 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) [2021-10-13 19:03:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:45,607 INFO L93 Difference]: Finished difference Result 141 states and 346 transitions. [2021-10-13 19:03:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 19:03:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 10 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 21 [2021-10-13 19:03:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:45,609 INFO L225 Difference]: With dead ends: 141 [2021-10-13 19:03:45,609 INFO L226 Difference]: Without dead ends: 141 [2021-10-13 19:03:45,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 56.8ms TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-10-13 19:03:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-13 19:03:45,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-13 19:03:45,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 137 states have (on average 2.5255474452554743) internal successors, (346), 140 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:45,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 346 transitions. [2021-10-13 19:03:45,630 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 346 transitions. Word has length 21 [2021-10-13 19:03:45,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:45,631 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 346 transitions. [2021-10-13 19:03:45,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 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) [2021-10-13 19:03:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 346 transitions. [2021-10-13 19:03:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:03:45,632 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:45,632 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:45,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-13 19:03:45,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:45,847 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:45,848 INFO L82 PathProgramCache]: Analyzing trace with hash -2120911140, now seen corresponding path program 3 times [2021-10-13 19:03:45,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:45,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481927260] [2021-10-13 19:03:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:45,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:45,936 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 19:03:45,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:45,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481927260] [2021-10-13 19:03:45,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481927260] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:45,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926338135] [2021-10-13 19:03:45,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-13 19:03:45,937 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:45,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:45,942 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:45,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 19:03:46,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-13 19:03:46,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 19:03:46,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 19:03:46,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:46,132 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 19:03:46,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926338135] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:46,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 19:03:46,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-10-13 19:03:46,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535367648] [2021-10-13 19:03:46,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:46,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:46,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:46,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:03:46,139 INFO L87 Difference]: Start difference. First operand 141 states and 346 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) 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) [2021-10-13 19:03:46,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:46,161 INFO L93 Difference]: Finished difference Result 158 states and 372 transitions. [2021-10-13 19:03:46,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:46,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) 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 23 [2021-10-13 19:03:46,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:46,163 INFO L225 Difference]: With dead ends: 158 [2021-10-13 19:03:46,163 INFO L226 Difference]: Without dead ends: 158 [2021-10-13 19:03:46,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-10-13 19:03:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-13 19:03:46,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 133. [2021-10-13 19:03:46,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 2.5153846153846153) internal successors, (327), 132 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 327 transitions. [2021-10-13 19:03:46,170 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 327 transitions. Word has length 23 [2021-10-13 19:03:46,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 327 transitions. [2021-10-13 19:03:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) 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) [2021-10-13 19:03:46,172 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 327 transitions. [2021-10-13 19:03:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 19:03:46,172 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:46,173 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:46,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:46,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-13 19:03:46,389 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:46,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:46,390 INFO L82 PathProgramCache]: Analyzing trace with hash -2120911142, now seen corresponding path program 1 times [2021-10-13 19:03:46,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:46,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261590872] [2021-10-13 19:03:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:46,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:46,441 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 19:03:46,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:46,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261590872] [2021-10-13 19:03:46,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261590872] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:46,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:46,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:46,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842370845] [2021-10-13 19:03:46,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 19:03:46,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:46,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 19:03:46,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:46,444 INFO L87 Difference]: Start difference. First operand 133 states and 327 transitions. Second operand has 3 states, 2 states have (on average 8.5) 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) [2021-10-13 19:03:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:46,456 INFO L93 Difference]: Finished difference Result 142 states and 334 transitions. [2021-10-13 19:03:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 19:03:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) 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 23 [2021-10-13 19:03:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:46,459 INFO L225 Difference]: With dead ends: 142 [2021-10-13 19:03:46,459 INFO L226 Difference]: Without dead ends: 142 [2021-10-13 19:03:46,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 19:03:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-10-13 19:03:46,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 93. [2021-10-13 19:03:46,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 2.3736263736263736) internal successors, (216), 92 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 216 transitions. [2021-10-13 19:03:46,464 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 216 transitions. Word has length 23 [2021-10-13 19:03:46,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:46,464 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 216 transitions. [2021-10-13 19:03:46,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) 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) [2021-10-13 19:03:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 216 transitions. [2021-10-13 19:03:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 19:03:46,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:46,468 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:46,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 19:03:46,469 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1109832600, now seen corresponding path program 1 times [2021-10-13 19:03:46,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:46,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801293448] [2021-10-13 19:03:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:46,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:03:46,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:46,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801293448] [2021-10-13 19:03:46,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801293448] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:46,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109200679] [2021-10-13 19:03:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:46,561 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 19:03:46,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 19:03:46,562 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 19:03:46,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-13 19:03:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:46,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 19:03:46,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 19:03:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-13 19:03:46,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109200679] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 19:03:46,799 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 19:03:46,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2021-10-13 19:03:46,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931678721] [2021-10-13 19:03:46,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 19:03:46,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 19:03:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:03:46,801 INFO L87 Difference]: Start difference. First operand 93 states and 216 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:46,832 INFO L93 Difference]: Finished difference Result 95 states and 218 transitions. [2021-10-13 19:03:46,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 19:03:46,833 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 19:03:46,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:46,834 INFO L225 Difference]: With dead ends: 95 [2021-10-13 19:03:46,834 INFO L226 Difference]: Without dead ends: 95 [2021-10-13 19:03:46,835 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 67.6ms TimeCoverageRelationStatistics Valid=56, Invalid=76, Unknown=0, NotChecked=0, Total=132 [2021-10-13 19:03:46,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-13 19:03:46,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-10-13 19:03:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 93 states have (on average 2.3440860215053765) internal successors, (218), 94 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:46,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 218 transitions. [2021-10-13 19:03:46,839 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 218 transitions. Word has length 25 [2021-10-13 19:03:46,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:46,839 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 218 transitions. [2021-10-13 19:03:46,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:46,840 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 218 transitions. [2021-10-13 19:03:46,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:03:46,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:46,840 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:46,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-13 19:03:47,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-13 19:03:47,056 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:47,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:47,056 INFO L82 PathProgramCache]: Analyzing trace with hash -851903573, now seen corresponding path program 2 times [2021-10-13 19:03:47,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:47,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406453386] [2021-10-13 19:03:47,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:47,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:03:47,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:47,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406453386] [2021-10-13 19:03:47,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406453386] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:47,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:47,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:47,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978901586] [2021-10-13 19:03:47,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:47,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:47,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:47,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:03:47,232 INFO L87 Difference]: Start difference. First operand 95 states and 218 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-13 19:03:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:47,241 INFO L93 Difference]: Finished difference Result 94 states and 217 transitions. [2021-10-13 19:03:47,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 27 [2021-10-13 19:03:47,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:47,242 INFO L225 Difference]: With dead ends: 94 [2021-10-13 19:03:47,242 INFO L226 Difference]: Without dead ends: 94 [2021-10-13 19:03:47,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:03:47,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-10-13 19:03:47,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-10-13 19:03:47,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 2.3333333333333335) internal successors, (217), 93 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:47,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 217 transitions. [2021-10-13 19:03:47,247 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 217 transitions. Word has length 27 [2021-10-13 19:03:47,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:47,247 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 217 transitions. [2021-10-13 19:03:47,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-13 19:03:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 217 transitions. [2021-10-13 19:03:47,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 19:03:47,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 19:03:47,248 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 19:03:47,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 19:03:47,249 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2021-10-13 19:03:47,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 19:03:47,249 INFO L82 PathProgramCache]: Analyzing trace with hash -851903630, now seen corresponding path program 1 times [2021-10-13 19:03:47,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 19:03:47,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968741054] [2021-10-13 19:03:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 19:03:47,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 19:03:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 19:03:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 19:03:47,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 19:03:47,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968741054] [2021-10-13 19:03:47,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968741054] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 19:03:47,313 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 19:03:47,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 19:03:47,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077923308] [2021-10-13 19:03:47,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 19:03:47,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 19:03:47,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 19:03:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:03:47,315 INFO L87 Difference]: Start difference. First operand 94 states and 217 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-13 19:03:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 19:03:47,322 INFO L93 Difference]: Finished difference Result 93 states and 216 transitions. [2021-10-13 19:03:47,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 19:03:47,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 27 [2021-10-13 19:03:47,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 19:03:47,323 INFO L225 Difference]: With dead ends: 93 [2021-10-13 19:03:47,323 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 19:03:47,324 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 19:03:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 19:03:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 19:03:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 19:03:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 19:03:47,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-10-13 19:03:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 19:03:47,325 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 19:03:47,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2021-10-13 19:03:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 19:03:47,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 19:03:47,328 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,329 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 19:03:47,330 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,331 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-10-13 19:03:47,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 19:03:47,339 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 19:03:47,339 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 19:03:47,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:03:47 BasicIcfg [2021-10-13 19:03:47,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 19:03:47,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 19:03:47,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 19:03:47,343 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 19:03:47,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:03:30" (3/4) ... [2021-10-13 19:03:47,346 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 19:03:47,353 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2021-10-13 19:03:47,353 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2021-10-13 19:03:47,360 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2021-10-13 19:03:47,360 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 19:03:47,360 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:03:47,361 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 19:03:47,405 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/weaver/chl-chromosome-opt-symm.wvr.c-witness.graphml [2021-10-13 19:03:47,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 19:03:47,407 INFO L168 Benchmark]: Toolchain (without parser) took 18172.79 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 125.6 MB in the beginning and 56.8 MB in the end (delta: 68.8 MB). Peak memory consumption was 101.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,407 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 19:03:47,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.86 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 114.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.05 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 112.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,408 INFO L168 Benchmark]: Boogie Preprocessor took 79.39 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 110.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,409 INFO L168 Benchmark]: RCFGBuilder took 768.68 ms. Allocated memory is still 151.0 MB. Free memory was 110.8 MB in the beginning and 126.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,409 INFO L168 Benchmark]: TraceAbstraction took 16675.39 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 125.9 MB in the beginning and 60.5 MB in the end (delta: 65.4 MB). Peak memory consumption was 96.3 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,410 INFO L168 Benchmark]: Witness Printer took 62.72 ms. Allocated memory is still 182.5 MB. Free memory was 60.5 MB in the beginning and 56.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-10-13 19:03:47,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 497.86 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 114.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 57.05 ms. Allocated memory is still 151.0 MB. Free memory was 114.5 MB in the beginning and 112.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 79.39 ms. Allocated memory is still 151.0 MB. Free memory was 112.4 MB in the beginning and 110.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 768.68 ms. Allocated memory is still 151.0 MB. Free memory was 110.8 MB in the beginning and 126.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 16675.39 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 125.9 MB in the beginning and 60.5 MB in the end (delta: 65.4 MB). Peak memory consumption was 96.3 MB. Max. memory is 8.0 GB. * Witness Printer took 62.72 ms. Allocated memory is still 182.5 MB. Free memory was 60.5 MB in the beginning and 56.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9094.5ms, 205 PlacesBefore, 38 PlacesAfterwards, 219 TransitionsBefore, 37 TransitionsAfterwards, 4788 CoEnabledTransitionPairs, 7 FixpointIterations, 115 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 21 TrivialYvCompositions, 20 ConcurrentYvCompositions, 15 ChoiceCompositions, 248 TotalNumberOfCompositions, 5627 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4720, positive: 4639, positive conditional: 0, positive unconditional: 4639, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3387, positive: 3352, positive conditional: 0, positive unconditional: 3352, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3387, positive: 3352, positive conditional: 0, positive unconditional: 3352, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 158, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 158, negative conditional: 0, negative unconditional: 158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4720, positive: 1287, positive conditional: 0, positive unconditional: 1287, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 3387, unknown conditional: 0, unknown unconditional: 3387] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 86, Positive conditional cache size: 0, Positive unconditional cache size: 86, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 275 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 16463.5ms, OverallIterations: 20, TraceHistogramMax: 5, EmptinessCheckTime: 33.3ms, AutomataDifference: 726.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9186.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 625 SDtfs, 430 SDslu, 653 SDs, 0 SdLazy, 274 SolverSat, 96 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 321.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 350.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=7, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 236.8ms AutomataMinimizationTime, 20 MinimizatonAttempts, 690 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 195.5ms SsaConstructionTime, 827.4ms SatisfiabilityAnalysisTime, 1885.4ms InterpolantComputationTime, 475 NumberOfCodeBlocks, 451 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 444 ConstructedInterpolants, 0 QuantifiedInterpolants, 919 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1570 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 31 InterpolantComputations, 15 PerfectInterpolantSequences, 228/293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 19:03:47,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...