/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:19:41,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:19:41,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:19:41,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:19:41,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:19:41,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:19:41,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:19:41,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:19:41,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:19:41,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:19:41,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:19:41,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:19:41,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:19:41,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:19:41,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:19:41,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:19:41,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:19:41,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:19:41,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:19:41,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:19:41,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:19:41,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:19:41,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:19:41,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:19:41,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 22:19:41,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 22:19:41,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 22:19:41,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 22:19:41,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 22:19:41,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 22:19:41,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:19:41,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:19:41,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:19:41,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:19:41,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:19:41,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:19:41,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:19:41,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:19:41,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:19:41,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:19:41,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:19:41,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-10-15 22:19:41,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:19:41,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:19:41,471 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:19:41,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:19:41,471 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:19:41,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:19:41,472 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:19:41,472 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:19:41,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:19:41,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:19:41,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:19:41,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:19:41,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:19:41,474 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:19:41,474 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:19:41,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:19:41,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:41,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:19:41,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:19:41,475 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:19:41,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:19:41,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:19:41,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:19:41,476 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:19:41,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:19:41,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:19:41,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:19:41,826 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:19:41,827 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:19:41,827 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-15 22:19:41,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b4ddc77/df54e99823954f95b70f054ce6ef5ec5/FLAG61a67d785 [2020-10-15 22:19:42,470 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:19:42,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2020-10-15 22:19:42,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b4ddc77/df54e99823954f95b70f054ce6ef5ec5/FLAG61a67d785 [2020-10-15 22:19:42,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02b4ddc77/df54e99823954f95b70f054ce6ef5ec5 [2020-10-15 22:19:42,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:19:42,743 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:19:42,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:42,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:19:42,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:19:42,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:42" (1/1) ... [2020-10-15 22:19:42,757 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c99476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:42, skipping insertion in model container [2020-10-15 22:19:42,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:19:42" (1/1) ... [2020-10-15 22:19:42,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:19:42,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:19:43,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:43,426 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:19:43,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:19:43,623 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:19:43,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43 WrapperNode [2020-10-15 22:19:43,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:19:43,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:43,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:19:43,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:19:43,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:19:43,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:19:43,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:19:43,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:19:43,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... [2020-10-15 22:19:43,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:19:43,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:19:43,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:19:43,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:19:43,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:19:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:19:43,798 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-10-15 22:19:43,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-10-15 22:19:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:19:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:19:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:19:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:19:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 22:19:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:19:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:19:43,802 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:19:44,232 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:19:44,233 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-10-15 22:19:44,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:44 BoogieIcfgContainer [2020-10-15 22:19:44,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:19:44,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:19:44,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:19:44,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:19:44,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:19:42" (1/3) ... [2020-10-15 22:19:44,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59531dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:44, skipping insertion in model container [2020-10-15 22:19:44,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:19:43" (2/3) ... [2020-10-15 22:19:44,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59531dbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:19:44, skipping insertion in model container [2020-10-15 22:19:44,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:19:44" (3/3) ... [2020-10-15 22:19:44,245 INFO L111 eAbstractionObserver]: Analyzing ICFG sssc12.i [2020-10-15 22:19:44,257 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:19:44,257 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:19:44,265 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:19:44,266 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:19:44,290 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,291 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,291 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,291 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,292 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,292 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,292 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,292 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,293 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,293 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,293 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,294 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,294 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,294 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,295 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,295 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,295 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,295 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,296 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,296 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,296 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,296 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,297 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,297 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,297 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,297 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,298 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,298 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,298 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,299 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,299 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,303 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,303 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,303 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,303 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,304 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,304 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,304 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,304 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,305 WARN L313 ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,305 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:44,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 22:19:44,342 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:44,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:44,343 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:44,343 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:44,343 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:44,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:44,343 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:44,344 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:44,357 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:44,360 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 61 transitions, 127 flow [2020-10-15 22:19:44,363 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 61 transitions, 127 flow [2020-10-15 22:19:44,365 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 61 transitions, 127 flow [2020-10-15 22:19:44,409 INFO L129 PetriNetUnfolder]: 7/70 cut-off events. [2020-10-15 22:19:44,409 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:19:44,414 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 7/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2020-10-15 22:19:44,417 INFO L117 LiptonReduction]: Number of co-enabled transitions 572 [2020-10-15 22:19:45,733 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-10-15 22:19:45,892 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-10-15 22:19:46,188 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-15 22:19:46,259 INFO L132 LiptonReduction]: Checked pairs total: 458 [2020-10-15 22:19:46,259 INFO L134 LiptonReduction]: Total number of compositions: 64 [2020-10-15 22:19:46,265 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-15 22:19:46,276 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-15 22:19:46,278 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-15 22:19:46,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-15 22:19:46,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:46,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-15 22:19:46,286 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:46,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:46,292 INFO L82 PathProgramCache]: Analyzing trace with hash 293090759, now seen corresponding path program 1 times [2020-10-15 22:19:46,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:46,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538032724] [2020-10-15 22:19:46,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:46,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538032724] [2020-10-15 22:19:46,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:46,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:46,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628717522] [2020-10-15 22:19:46,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:46,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:46,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:46,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:46,589 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-15 22:19:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:46,636 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2020-10-15 22:19:46,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:19:46,638 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-15 22:19:46,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:46,651 INFO L225 Difference]: With dead ends: 27 [2020-10-15 22:19:46,651 INFO L226 Difference]: Without dead ends: 27 [2020-10-15 22:19:46,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:46,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-15 22:19:46,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2020-10-15 22:19:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-15 22:19:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 42 transitions. [2020-10-15 22:19:46,696 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 42 transitions. Word has length 5 [2020-10-15 22:19:46,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:46,696 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 42 transitions. [2020-10-15 22:19:46,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:46,696 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 42 transitions. [2020-10-15 22:19:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 22:19:46,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:46,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-15 22:19:46,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:19:46,697 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:46,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:46,698 INFO L82 PathProgramCache]: Analyzing trace with hash 495879514, now seen corresponding path program 1 times [2020-10-15 22:19:46,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:46,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798930890] [2020-10-15 22:19:46,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:46,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798930890] [2020-10-15 22:19:46,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148265942] [2020-10-15 22:19:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:46,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-15 22:19:46,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:46,914 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term [2020-10-15 22:19:46,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-15 22:19:46,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:46,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:46,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-15 22:19:46,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360776506] [2020-10-15 22:19:46,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 22:19:46,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:46,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 22:19:46,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:46,940 INFO L87 Difference]: Start difference. First operand 23 states and 42 transitions. Second operand 7 states. [2020-10-15 22:19:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:47,067 INFO L93 Difference]: Finished difference Result 31 states and 52 transitions. [2020-10-15 22:19:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:47,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 6 [2020-10-15 22:19:47,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:47,069 INFO L225 Difference]: With dead ends: 31 [2020-10-15 22:19:47,069 INFO L226 Difference]: Without dead ends: 31 [2020-10-15 22:19:47,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-15 22:19:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 15. [2020-10-15 22:19:47,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-15 22:19:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-10-15 22:19:47,074 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6 [2020-10-15 22:19:47,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:47,075 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-10-15 22:19:47,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 22:19:47,075 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-10-15 22:19:47,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-15 22:19:47,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:47,076 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-15 22:19:47,289 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-15 22:19:47,290 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:47,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:47,291 INFO L82 PathProgramCache]: Analyzing trace with hash 495744146, now seen corresponding path program 1 times [2020-10-15 22:19:47,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:47,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574388668] [2020-10-15 22:19:47,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:47,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:47,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:47,339 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:47,339 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:47,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:47,340 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 22:19:47,341 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:47,341 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-15 22:19:47,348 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,349 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,349 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,349 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,349 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,349 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,350 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,350 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,350 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,350 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,351 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,352 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,352 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,352 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,352 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,353 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,353 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,353 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,353 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,354 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,354 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,354 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,354 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,354 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,355 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,355 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,355 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,356 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,356 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,356 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,356 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,356 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,357 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,357 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,357 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,357 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,358 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,359 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,359 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,359 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,360 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,361 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,361 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,361 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,361 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,362 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,362 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,362 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,362 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,362 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,363 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,363 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,363 WARN L313 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,365 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,365 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,365 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,365 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,365 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,366 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,366 WARN L313 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,366 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:47,368 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:19:47,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:47,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:47,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:47,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:47,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:47,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:47,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:47,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:47,372 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:47,372 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 88 transitions, 188 flow [2020-10-15 22:19:47,372 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 88 transitions, 188 flow [2020-10-15 22:19:47,373 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 83 places, 88 transitions, 188 flow [2020-10-15 22:19:47,399 INFO L129 PetriNetUnfolder]: 12/107 cut-off events. [2020-10-15 22:19:47,399 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-15 22:19:47,401 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 12/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. [2020-10-15 22:19:47,404 INFO L117 LiptonReduction]: Number of co-enabled transitions 2548 [2020-10-15 22:19:49,245 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-10-15 22:19:49,324 INFO L132 LiptonReduction]: Checked pairs total: 5928 [2020-10-15 22:19:49,324 INFO L134 LiptonReduction]: Total number of compositions: 79 [2020-10-15 22:19:49,325 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 66 flow [2020-10-15 22:19:49,348 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 445 states. [2020-10-15 22:19:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states. [2020-10-15 22:19:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:19:49,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:49,350 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:49,350 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:49,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash -345168823, now seen corresponding path program 1 times [2020-10-15 22:19:49,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:49,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901506793] [2020-10-15 22:19:49,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:49,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901506793] [2020-10-15 22:19:49,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:49,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:49,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068292745] [2020-10-15 22:19:49,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:49,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:49,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:49,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:49,395 INFO L87 Difference]: Start difference. First operand 445 states. Second operand 3 states. [2020-10-15 22:19:49,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:49,433 INFO L93 Difference]: Finished difference Result 471 states and 1311 transitions. [2020-10-15 22:19:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:49,434 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-15 22:19:49,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:49,444 INFO L225 Difference]: With dead ends: 471 [2020-10-15 22:19:49,445 INFO L226 Difference]: Without dead ends: 471 [2020-10-15 22:19:49,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:49,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2020-10-15 22:19:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 432. [2020-10-15 22:19:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-15 22:19:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 1241 transitions. [2020-10-15 22:19:49,521 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 1241 transitions. Word has length 7 [2020-10-15 22:19:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:49,522 INFO L481 AbstractCegarLoop]: Abstraction has 432 states and 1241 transitions. [2020-10-15 22:19:49,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 1241 transitions. [2020-10-15 22:19:49,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:19:49,523 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:49,523 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-15 22:19:49,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:49,524 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:49,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1481361204, now seen corresponding path program 1 times [2020-10-15 22:19:49,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:49,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23528085] [2020-10-15 22:19:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:49,540 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:49,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:49,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:49,563 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:49,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:49,564 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 22:19:49,564 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:49,569 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-15 22:19:49,577 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,577 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,578 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,579 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,579 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,579 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,579 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,579 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,580 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,581 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,582 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,582 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,582 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,582 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,582 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,583 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,583 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,583 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,583 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,584 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,585 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,585 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,585 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,585 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,585 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,586 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,587 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,588 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,588 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,588 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,588 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,589 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,590 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,591 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,592 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,593 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,594 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,594 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,594 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,594 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,595 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,596 WARN L313 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,597 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,597 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,597 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,597 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,598 WARN L313 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,599 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,600 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,601 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,601 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,601 WARN L313 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:49,602 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-15 22:19:49,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:49,602 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:49,602 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:49,603 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:49,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:49,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:49,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:49,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:49,605 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:49,605 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 115 transitions, 251 flow [2020-10-15 22:19:49,605 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 115 transitions, 251 flow [2020-10-15 22:19:49,606 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 108 places, 115 transitions, 251 flow [2020-10-15 22:19:49,631 INFO L129 PetriNetUnfolder]: 17/144 cut-off events. [2020-10-15 22:19:49,631 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-15 22:19:49,633 INFO L80 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 144 events. 17/144 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 374 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2020-10-15 22:19:49,639 INFO L117 LiptonReduction]: Number of co-enabled transitions 5928 [2020-10-15 22:19:51,739 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 22:19:51,823 INFO L132 LiptonReduction]: Checked pairs total: 14612 [2020-10-15 22:19:51,823 INFO L134 LiptonReduction]: Total number of compositions: 102 [2020-10-15 22:19:51,824 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 38 transitions, 97 flow [2020-10-15 22:19:52,061 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4009 states. [2020-10-15 22:19:52,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4009 states. [2020-10-15 22:19:52,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:19:52,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:52,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:52,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:52,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:52,064 INFO L82 PathProgramCache]: Analyzing trace with hash 349546925, now seen corresponding path program 1 times [2020-10-15 22:19:52,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:52,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499510178] [2020-10-15 22:19:52,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:52,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499510178] [2020-10-15 22:19:52,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:52,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:52,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739391528] [2020-10-15 22:19:52,148 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:52,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:52,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:52,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:52,149 INFO L87 Difference]: Start difference. First operand 4009 states. Second operand 3 states. [2020-10-15 22:19:52,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:52,230 INFO L93 Difference]: Finished difference Result 3897 states and 15504 transitions. [2020-10-15 22:19:52,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:52,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-15 22:19:52,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:52,278 INFO L225 Difference]: With dead ends: 3897 [2020-10-15 22:19:52,279 INFO L226 Difference]: Without dead ends: 3897 [2020-10-15 22:19:52,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2020-10-15 22:19:52,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3897. [2020-10-15 22:19:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3897 states. [2020-10-15 22:19:52,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 15504 transitions. [2020-10-15 22:19:52,538 INFO L78 Accepts]: Start accepts. Automaton has 3897 states and 15504 transitions. Word has length 7 [2020-10-15 22:19:52,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:52,538 INFO L481 AbstractCegarLoop]: Abstraction has 3897 states and 15504 transitions. [2020-10-15 22:19:52,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:52,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3897 states and 15504 transitions. [2020-10-15 22:19:52,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:19:52,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:52,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:52,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 22:19:52,541 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:52,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:52,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1977084772, now seen corresponding path program 1 times [2020-10-15 22:19:52,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:52,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953833262] [2020-10-15 22:19:52,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:52,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953833262] [2020-10-15 22:19:52,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:52,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:52,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329431464] [2020-10-15 22:19:52,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:52,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:52,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:52,597 INFO L87 Difference]: Start difference. First operand 3897 states and 15504 transitions. Second operand 5 states. [2020-10-15 22:19:52,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:52,829 INFO L93 Difference]: Finished difference Result 8641 states and 33335 transitions. [2020-10-15 22:19:52,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:52,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:19:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:52,913 INFO L225 Difference]: With dead ends: 8641 [2020-10-15 22:19:52,913 INFO L226 Difference]: Without dead ends: 8641 [2020-10-15 22:19:52,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:19:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8641 states. [2020-10-15 22:19:53,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8641 to 5901. [2020-10-15 22:19:53,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5901 states. [2020-10-15 22:19:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5901 states to 5901 states and 23253 transitions. [2020-10-15 22:19:53,209 INFO L78 Accepts]: Start accepts. Automaton has 5901 states and 23253 transitions. Word has length 10 [2020-10-15 22:19:53,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:53,210 INFO L481 AbstractCegarLoop]: Abstraction has 5901 states and 23253 transitions. [2020-10-15 22:19:53,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:53,210 INFO L276 IsEmpty]: Start isEmpty. Operand 5901 states and 23253 transitions. [2020-10-15 22:19:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:19:53,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:53,211 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:53,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 22:19:53,212 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:53,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:53,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1526629100, now seen corresponding path program 1 times [2020-10-15 22:19:53,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:53,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655893577] [2020-10-15 22:19:53,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:19:53,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655893577] [2020-10-15 22:19:53,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:53,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:53,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18661816] [2020-10-15 22:19:53,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:19:53,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:53,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:19:53,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:53,250 INFO L87 Difference]: Start difference. First operand 5901 states and 23253 transitions. Second operand 3 states. [2020-10-15 22:19:53,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:53,317 INFO L93 Difference]: Finished difference Result 6612 states and 25891 transitions. [2020-10-15 22:19:53,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:19:53,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:19:53,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:53,347 INFO L225 Difference]: With dead ends: 6612 [2020-10-15 22:19:53,347 INFO L226 Difference]: Without dead ends: 6612 [2020-10-15 22:19:53,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:19:53,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2020-10-15 22:19:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 6612. [2020-10-15 22:19:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6612 states. [2020-10-15 22:19:53,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6612 states to 6612 states and 25891 transitions. [2020-10-15 22:19:53,703 INFO L78 Accepts]: Start accepts. Automaton has 6612 states and 25891 transitions. Word has length 10 [2020-10-15 22:19:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:53,704 INFO L481 AbstractCegarLoop]: Abstraction has 6612 states and 25891 transitions. [2020-10-15 22:19:53,705 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:19:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 6612 states and 25891 transitions. [2020-10-15 22:19:53,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:19:53,711 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:53,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:53,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 22:19:53,712 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:53,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:53,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1160084803, now seen corresponding path program 1 times [2020-10-15 22:19:53,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:53,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510953861] [2020-10-15 22:19:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:53,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510953861] [2020-10-15 22:19:53,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346362694] [2020-10-15 22:19:53,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:53,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:19:53,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:53,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:53,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:53,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-15 22:19:53,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603474959] [2020-10-15 22:19:53,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:53,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:53,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:53,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:53,862 INFO L87 Difference]: Start difference. First operand 6612 states and 25891 transitions. Second operand 5 states. [2020-10-15 22:19:54,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:54,160 INFO L93 Difference]: Finished difference Result 12596 states and 48378 transitions. [2020-10-15 22:19:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:19:54,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-15 22:19:54,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:54,214 INFO L225 Difference]: With dead ends: 12596 [2020-10-15 22:19:54,214 INFO L226 Difference]: Without dead ends: 12596 [2020-10-15 22:19:54,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:19:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12596 states. [2020-10-15 22:19:54,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12596 to 8836. [2020-10-15 22:19:54,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8836 states. [2020-10-15 22:19:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8836 states to 8836 states and 35424 transitions. [2020-10-15 22:19:54,629 INFO L78 Accepts]: Start accepts. Automaton has 8836 states and 35424 transitions. Word has length 11 [2020-10-15 22:19:54,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:54,629 INFO L481 AbstractCegarLoop]: Abstraction has 8836 states and 35424 transitions. [2020-10-15 22:19:54,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:54,629 INFO L276 IsEmpty]: Start isEmpty. Operand 8836 states and 35424 transitions. [2020-10-15 22:19:54,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:19:54,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:54,630 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:54,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:54,844 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:54,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:54,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1602889540, now seen corresponding path program 2 times [2020-10-15 22:19:54,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:54,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829870669] [2020-10-15 22:19:54,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:54,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:54,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829870669] [2020-10-15 22:19:54,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555124224] [2020-10-15 22:19:54,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:19:54,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:19:54,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:19:54,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:19:54,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:19:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:54,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:19:54,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 22:19:54,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80889179] [2020-10-15 22:19:54,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:19:54,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:54,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:19:54,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:19:54,950 INFO L87 Difference]: Start difference. First operand 8836 states and 35424 transitions. Second operand 6 states. [2020-10-15 22:19:55,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:55,519 INFO L93 Difference]: Finished difference Result 13804 states and 53080 transitions. [2020-10-15 22:19:55,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 22:19:55,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-15 22:19:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:55,575 INFO L225 Difference]: With dead ends: 13804 [2020-10-15 22:19:55,575 INFO L226 Difference]: Without dead ends: 13804 [2020-10-15 22:19:55,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:19:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13804 states. [2020-10-15 22:19:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13804 to 9325. [2020-10-15 22:19:55,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9325 states. [2020-10-15 22:19:55,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9325 states to 9325 states and 37793 transitions. [2020-10-15 22:19:55,905 INFO L78 Accepts]: Start accepts. Automaton has 9325 states and 37793 transitions. Word has length 12 [2020-10-15 22:19:55,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:55,906 INFO L481 AbstractCegarLoop]: Abstraction has 9325 states and 37793 transitions. [2020-10-15 22:19:55,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:19:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 9325 states and 37793 transitions. [2020-10-15 22:19:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:19:55,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:55,908 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-15 22:19:56,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-15 22:19:56,123 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:56,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:56,124 INFO L82 PathProgramCache]: Analyzing trace with hash 562791573, now seen corresponding path program 1 times [2020-10-15 22:19:56,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:56,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17530901] [2020-10-15 22:19:56,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:56,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:19:56,146 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:19:56,151 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:19:56,151 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:19:56,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 22:19:56,152 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 22:19:56,152 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:19:56,153 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-15 22:19:56,161 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,161 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,161 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,161 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,162 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,163 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,163 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,163 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,163 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,163 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,164 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,165 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,166 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,166 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,166 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,166 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,166 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,167 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,168 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,169 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,170 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,171 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,172 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,173 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,174 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,175 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,176 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,177 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,178 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,179 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,180 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,180 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,180 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,181 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,182 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,183 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,184 WARN L313 ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,184 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,185 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,185 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,185 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,185 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,186 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,186 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,186 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,186 WARN L313 ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,186 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,187 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,187 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,187 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,188 WARN L313 ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:19:56,190 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-15 22:19:56,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:19:56,190 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:19:56,190 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:19:56,190 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:19:56,190 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:19:56,191 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:19:56,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:19:56,191 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:19:56,193 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:19:56,193 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 142 transitions, 316 flow [2020-10-15 22:19:56,193 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 142 transitions, 316 flow [2020-10-15 22:19:56,193 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 133 places, 142 transitions, 316 flow [2020-10-15 22:19:56,221 INFO L129 PetriNetUnfolder]: 22/181 cut-off events. [2020-10-15 22:19:56,222 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-15 22:19:56,225 INFO L80 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 181 events. 22/181 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 556 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 152. Up to 10 conditions per place. [2020-10-15 22:19:56,236 INFO L117 LiptonReduction]: Number of co-enabled transitions 10712 [2020-10-15 22:19:56,683 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-10-15 22:19:58,860 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-10-15 22:19:58,923 INFO L132 LiptonReduction]: Checked pairs total: 28741 [2020-10-15 22:19:58,923 INFO L134 LiptonReduction]: Total number of compositions: 128 [2020-10-15 22:19:58,923 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 49 transitions, 130 flow [2020-10-15 22:20:04,731 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36085 states. [2020-10-15 22:20:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 36085 states. [2020-10-15 22:20:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:20:04,731 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:04,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:04,732 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:04,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:04,733 INFO L82 PathProgramCache]: Analyzing trace with hash 885326645, now seen corresponding path program 1 times [2020-10-15 22:20:04,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:04,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648842317] [2020-10-15 22:20:04,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:04,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:04,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648842317] [2020-10-15 22:20:04,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:04,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:20:04,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141565180] [2020-10-15 22:20:04,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:20:04,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:20:04,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:20:04,765 INFO L87 Difference]: Start difference. First operand 36085 states. Second operand 4 states. [2020-10-15 22:20:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:05,084 INFO L93 Difference]: Finished difference Result 38271 states and 194460 transitions. [2020-10-15 22:20:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:20:05,085 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-15 22:20:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:05,290 INFO L225 Difference]: With dead ends: 38271 [2020-10-15 22:20:05,290 INFO L226 Difference]: Without dead ends: 38271 [2020-10-15 22:20:05,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:20:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38271 states. [2020-10-15 22:20:06,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 35082. [2020-10-15 22:20:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35082 states. [2020-10-15 22:20:07,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35082 states to 35082 states and 181710 transitions. [2020-10-15 22:20:07,087 INFO L78 Accepts]: Start accepts. Automaton has 35082 states and 181710 transitions. Word has length 7 [2020-10-15 22:20:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:07,087 INFO L481 AbstractCegarLoop]: Abstraction has 35082 states and 181710 transitions. [2020-10-15 22:20:07,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:20:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 35082 states and 181710 transitions. [2020-10-15 22:20:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:20:07,088 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:07,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:07,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 22:20:07,088 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:07,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:07,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1675324038, now seen corresponding path program 1 times [2020-10-15 22:20:07,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:07,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583662056] [2020-10-15 22:20:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:07,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583662056] [2020-10-15 22:20:07,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:07,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:07,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885776355] [2020-10-15 22:20:07,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:20:07,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:07,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:20:07,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:07,110 INFO L87 Difference]: Start difference. First operand 35082 states and 181710 transitions. Second operand 3 states. [2020-10-15 22:20:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:07,346 INFO L93 Difference]: Finished difference Result 38271 states and 191271 transitions. [2020-10-15 22:20:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:20:07,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 22:20:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:09,782 INFO L225 Difference]: With dead ends: 38271 [2020-10-15 22:20:09,783 INFO L226 Difference]: Without dead ends: 38271 [2020-10-15 22:20:09,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:10,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38271 states. [2020-10-15 22:20:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 35082. [2020-10-15 22:20:10,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35082 states. [2020-10-15 22:20:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35082 states to 35082 states and 178521 transitions. [2020-10-15 22:20:11,325 INFO L78 Accepts]: Start accepts. Automaton has 35082 states and 178521 transitions. Word has length 8 [2020-10-15 22:20:11,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:11,325 INFO L481 AbstractCegarLoop]: Abstraction has 35082 states and 178521 transitions. [2020-10-15 22:20:11,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:20:11,325 INFO L276 IsEmpty]: Start isEmpty. Operand 35082 states and 178521 transitions. [2020-10-15 22:20:11,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:20:11,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:11,326 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:11,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 22:20:11,326 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:11,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1680450871, now seen corresponding path program 1 times [2020-10-15 22:20:11,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:11,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585350161] [2020-10-15 22:20:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:20:11,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585350161] [2020-10-15 22:20:11,347 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:11,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:20:11,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083663683] [2020-10-15 22:20:11,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:20:11,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:11,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:20:11,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:11,349 INFO L87 Difference]: Start difference. First operand 35082 states and 178521 transitions. Second operand 3 states. [2020-10-15 22:20:11,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:11,818 INFO L93 Difference]: Finished difference Result 46764 states and 232812 transitions. [2020-10-15 22:20:11,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:20:11,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:20:11,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:12,077 INFO L225 Difference]: With dead ends: 46764 [2020-10-15 22:20:12,077 INFO L226 Difference]: Without dead ends: 46764 [2020-10-15 22:20:12,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:20:12,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46764 states. [2020-10-15 22:20:13,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46764 to 42870. [2020-10-15 22:20:13,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42870 states. [2020-10-15 22:20:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42870 states to 42870 states and 217311 transitions. [2020-10-15 22:20:14,138 INFO L78 Accepts]: Start accepts. Automaton has 42870 states and 217311 transitions. Word has length 10 [2020-10-15 22:20:14,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:14,138 INFO L481 AbstractCegarLoop]: Abstraction has 42870 states and 217311 transitions. [2020-10-15 22:20:14,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:20:14,138 INFO L276 IsEmpty]: Start isEmpty. Operand 42870 states and 217311 transitions. [2020-10-15 22:20:14,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:20:14,139 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:14,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:14,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 22:20:14,139 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:14,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:14,139 INFO L82 PathProgramCache]: Analyzing trace with hash -662629176, now seen corresponding path program 1 times [2020-10-15 22:20:14,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:14,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108618523] [2020-10-15 22:20:14,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:14,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108618523] [2020-10-15 22:20:14,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:14,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:14,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353876913] [2020-10-15 22:20:14,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:14,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:14,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:14,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:14,182 INFO L87 Difference]: Start difference. First operand 42870 states and 217311 transitions. Second operand 5 states. [2020-10-15 22:20:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:18,142 INFO L93 Difference]: Finished difference Result 141044 states and 692287 transitions. [2020-10-15 22:20:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:20:18,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:20:18,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:18,636 INFO L225 Difference]: With dead ends: 141044 [2020-10-15 22:20:18,637 INFO L226 Difference]: Without dead ends: 141044 [2020-10-15 22:20:18,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:19,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141044 states. [2020-10-15 22:20:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141044 to 76855. [2020-10-15 22:20:22,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76855 states. [2020-10-15 22:20:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76855 states to 76855 states and 386073 transitions. [2020-10-15 22:20:22,517 INFO L78 Accepts]: Start accepts. Automaton has 76855 states and 386073 transitions. Word has length 10 [2020-10-15 22:20:22,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:22,518 INFO L481 AbstractCegarLoop]: Abstraction has 76855 states and 386073 transitions. [2020-10-15 22:20:22,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:22,518 INFO L276 IsEmpty]: Start isEmpty. Operand 76855 states and 386073 transitions. [2020-10-15 22:20:22,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 22:20:22,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:22,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:22,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 22:20:22,519 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:22,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:22,519 INFO L82 PathProgramCache]: Analyzing trace with hash 933333843, now seen corresponding path program 1 times [2020-10-15 22:20:22,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:22,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501729811] [2020-10-15 22:20:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:22,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:22,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501729811] [2020-10-15 22:20:22,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707246263] [2020-10-15 22:20:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:22,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:20:22,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:22,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:22,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-15 22:20:22,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171614997] [2020-10-15 22:20:22,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:22,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:22,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:22,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:22,626 INFO L87 Difference]: Start difference. First operand 76855 states and 386073 transitions. Second operand 5 states. [2020-10-15 22:20:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:23,880 INFO L93 Difference]: Finished difference Result 156575 states and 767493 transitions. [2020-10-15 22:20:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:20:23,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-15 22:20:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:29,392 INFO L225 Difference]: With dead ends: 156575 [2020-10-15 22:20:29,392 INFO L226 Difference]: Without dead ends: 156575 [2020-10-15 22:20:29,392 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:20:30,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156575 states. [2020-10-15 22:20:32,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156575 to 106668. [2020-10-15 22:20:32,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106668 states. [2020-10-15 22:20:33,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106668 states to 106668 states and 541606 transitions. [2020-10-15 22:20:33,164 INFO L78 Accepts]: Start accepts. Automaton has 106668 states and 541606 transitions. Word has length 11 [2020-10-15 22:20:33,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:33,164 INFO L481 AbstractCegarLoop]: Abstraction has 106668 states and 541606 transitions. [2020-10-15 22:20:33,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:20:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 106668 states and 541606 transitions. [2020-10-15 22:20:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:20:33,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:33,166 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:33,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:33,380 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:33,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:33,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1131420120, now seen corresponding path program 2 times [2020-10-15 22:20:33,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:33,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786218646] [2020-10-15 22:20:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:33,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786218646] [2020-10-15 22:20:33,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466478524] [2020-10-15 22:20:33,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:20:33,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-15 22:20:33,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:20:33,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-15 22:20:33,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:20:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:20:33,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:20:33,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-10-15 22:20:33,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701341654] [2020-10-15 22:20:33,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 22:20:33,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:33,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 22:20:33,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 22:20:33,498 INFO L87 Difference]: Start difference. First operand 106668 states and 541606 transitions. Second operand 6 states. [2020-10-15 22:20:35,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:35,924 INFO L93 Difference]: Finished difference Result 159236 states and 782186 transitions. [2020-10-15 22:20:35,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 22:20:35,925 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-15 22:20:35,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:36,467 INFO L225 Difference]: With dead ends: 159236 [2020-10-15 22:20:36,467 INFO L226 Difference]: Without dead ends: 159236 [2020-10-15 22:20:36,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:20:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159236 states. [2020-10-15 22:20:45,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159236 to 111759. [2020-10-15 22:20:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111759 states. [2020-10-15 22:20:47,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111759 states to 111759 states and 571639 transitions. [2020-10-15 22:20:47,018 INFO L78 Accepts]: Start accepts. Automaton has 111759 states and 571639 transitions. Word has length 12 [2020-10-15 22:20:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:47,019 INFO L481 AbstractCegarLoop]: Abstraction has 111759 states and 571639 transitions. [2020-10-15 22:20:47,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 22:20:47,019 INFO L276 IsEmpty]: Start isEmpty. Operand 111759 states and 571639 transitions. [2020-10-15 22:20:47,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:20:47,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:47,020 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:47,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-10-15 22:20:47,221 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:47,222 INFO L82 PathProgramCache]: Analyzing trace with hash 527017072, now seen corresponding path program 1 times [2020-10-15 22:20:47,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:47,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084473352] [2020-10-15 22:20:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:47,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:47,261 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 22:20:47,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084473352] [2020-10-15 22:20:47,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:47,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:20:47,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809449068] [2020-10-15 22:20:47,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:20:47,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:47,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:20:47,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:20:47,263 INFO L87 Difference]: Start difference. First operand 111759 states and 571639 transitions. Second operand 4 states. [2020-10-15 22:20:48,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:20:48,238 INFO L93 Difference]: Finished difference Result 140498 states and 717820 transitions. [2020-10-15 22:20:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 22:20:48,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 22:20:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:20:48,735 INFO L225 Difference]: With dead ends: 140498 [2020-10-15 22:20:48,735 INFO L226 Difference]: Without dead ends: 140498 [2020-10-15 22:20:48,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:20:49,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140498 states. [2020-10-15 22:20:58,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140498 to 130613. [2020-10-15 22:20:58,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130613 states. [2020-10-15 22:20:58,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130613 states to 130613 states and 677480 transitions. [2020-10-15 22:20:58,615 INFO L78 Accepts]: Start accepts. Automaton has 130613 states and 677480 transitions. Word has length 13 [2020-10-15 22:20:58,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:20:58,615 INFO L481 AbstractCegarLoop]: Abstraction has 130613 states and 677480 transitions. [2020-10-15 22:20:58,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:20:58,615 INFO L276 IsEmpty]: Start isEmpty. Operand 130613 states and 677480 transitions. [2020-10-15 22:20:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:20:58,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:20:58,617 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:20:58,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 22:20:58,618 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:20:58,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:20:58,618 INFO L82 PathProgramCache]: Analyzing trace with hash -207198542, now seen corresponding path program 1 times [2020-10-15 22:20:58,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:20:58,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66348633] [2020-10-15 22:20:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:20:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:20:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:20:58,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66348633] [2020-10-15 22:20:58,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:20:58,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:20:58,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409141729] [2020-10-15 22:20:58,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:20:58,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:20:58,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:20:58,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:20:58,658 INFO L87 Difference]: Start difference. First operand 130613 states and 677480 transitions. Second operand 5 states. [2020-10-15 22:21:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:02,296 INFO L93 Difference]: Finished difference Result 339201 states and 1759962 transitions. [2020-10-15 22:21:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:21:02,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:21:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:03,554 INFO L225 Difference]: With dead ends: 339201 [2020-10-15 22:21:03,555 INFO L226 Difference]: Without dead ends: 339201 [2020-10-15 22:21:03,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:21:15,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339201 states. [2020-10-15 22:21:20,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339201 to 187241. [2020-10-15 22:21:20,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187241 states. [2020-10-15 22:21:21,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187241 states to 187241 states and 988529 transitions. [2020-10-15 22:21:21,504 INFO L78 Accepts]: Start accepts. Automaton has 187241 states and 988529 transitions. Word has length 13 [2020-10-15 22:21:21,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:21,504 INFO L481 AbstractCegarLoop]: Abstraction has 187241 states and 988529 transitions. [2020-10-15 22:21:21,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:21:21,504 INFO L276 IsEmpty]: Start isEmpty. Operand 187241 states and 988529 transitions. [2020-10-15 22:21:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 22:21:21,513 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:21,513 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:21,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 22:21:21,513 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:21,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:21,513 INFO L82 PathProgramCache]: Analyzing trace with hash -714283533, now seen corresponding path program 3 times [2020-10-15 22:21:21,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:21,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457977632] [2020-10-15 22:21:21,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:21:21,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457977632] [2020-10-15 22:21:21,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670815176] [2020-10-15 22:21:21,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:21,634 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2020-10-15 22:21:21,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-15 22:21:21,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:21:21,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:21:21,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-15 22:21:21,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-15 22:21:21,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2020-10-15 22:21:21,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741324104] [2020-10-15 22:21:21,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:21:21,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:21,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:21:21,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-15 22:21:21,666 INFO L87 Difference]: Start difference. First operand 187241 states and 988529 transitions. Second operand 5 states. [2020-10-15 22:21:26,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:26,596 INFO L93 Difference]: Finished difference Result 324012 states and 1699504 transitions. [2020-10-15 22:21:26,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:21:26,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 22:21:26,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:27,911 INFO L225 Difference]: With dead ends: 324012 [2020-10-15 22:21:27,911 INFO L226 Difference]: Without dead ends: 324012 [2020-10-15 22:21:27,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-15 22:21:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324012 states. [2020-10-15 22:21:46,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324012 to 203980. [2020-10-15 22:21:46,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203980 states. [2020-10-15 22:21:47,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203980 states to 203980 states and 1071758 transitions. [2020-10-15 22:21:47,581 INFO L78 Accepts]: Start accepts. Automaton has 203980 states and 1071758 transitions. Word has length 13 [2020-10-15 22:21:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:21:47,581 INFO L481 AbstractCegarLoop]: Abstraction has 203980 states and 1071758 transitions. [2020-10-15 22:21:47,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:21:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 203980 states and 1071758 transitions. [2020-10-15 22:21:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:21:47,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:21:47,583 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:21:47,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:21:47,784 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:21:47,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:21:47,785 INFO L82 PathProgramCache]: Analyzing trace with hash -842338344, now seen corresponding path program 1 times [2020-10-15 22:21:47,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:21:47,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438976778] [2020-10-15 22:21:47,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:21:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:21:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 22:21:47,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438976778] [2020-10-15 22:21:47,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:21:47,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:21:47,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000233400] [2020-10-15 22:21:47,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:21:47,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:21:47,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:21:47,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:21:47,817 INFO L87 Difference]: Start difference. First operand 203980 states and 1071758 transitions. Second operand 3 states. [2020-10-15 22:21:51,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:21:51,390 INFO L93 Difference]: Finished difference Result 214092 states and 1094877 transitions. [2020-10-15 22:21:51,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:21:51,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2020-10-15 22:21:51,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:21:52,214 INFO L225 Difference]: With dead ends: 214092 [2020-10-15 22:21:52,214 INFO L226 Difference]: Without dead ends: 214092 [2020-10-15 22:21:52,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:21:53,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214092 states. [2020-10-15 22:22:11,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214092 to 200826. [2020-10-15 22:22:11,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200826 states. [2020-10-15 22:22:11,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200826 states to 200826 states and 1039664 transitions. [2020-10-15 22:22:11,916 INFO L78 Accepts]: Start accepts. Automaton has 200826 states and 1039664 transitions. Word has length 14 [2020-10-15 22:22:11,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:11,916 INFO L481 AbstractCegarLoop]: Abstraction has 200826 states and 1039664 transitions. [2020-10-15 22:22:11,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:22:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 200826 states and 1039664 transitions. [2020-10-15 22:22:11,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:22:11,919 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:11,919 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:11,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 22:22:11,919 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:11,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:11,920 INFO L82 PathProgramCache]: Analyzing trace with hash -2128185923, now seen corresponding path program 1 times [2020-10-15 22:22:11,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:11,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993897520] [2020-10-15 22:22:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:22:11,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993897520] [2020-10-15 22:22:11,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443429390] [2020-10-15 22:22:11,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:22:12,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-15 22:22:12,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-15 22:22:12,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:22:12,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-15 22:22:12,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2020-10-15 22:22:12,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625441824] [2020-10-15 22:22:12,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:22:12,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:22:12,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:22:12,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:22:12,017 INFO L87 Difference]: Start difference. First operand 200826 states and 1039664 transitions. Second operand 5 states. [2020-10-15 22:22:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:22:16,022 INFO L93 Difference]: Finished difference Result 345997 states and 1776480 transitions. [2020-10-15 22:22:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 22:22:16,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:22:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:22:17,363 INFO L225 Difference]: With dead ends: 345997 [2020-10-15 22:22:17,363 INFO L226 Difference]: Without dead ends: 345997 [2020-10-15 22:22:17,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-15 22:22:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345997 states. [2020-10-15 22:22:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345997 to 250906. [2020-10-15 22:22:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250906 states. [2020-10-15 22:22:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250906 states to 250906 states and 1328200 transitions. [2020-10-15 22:22:37,115 INFO L78 Accepts]: Start accepts. Automaton has 250906 states and 1328200 transitions. Word has length 14 [2020-10-15 22:22:37,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:22:37,116 INFO L481 AbstractCegarLoop]: Abstraction has 250906 states and 1328200 transitions. [2020-10-15 22:22:37,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:22:37,116 INFO L276 IsEmpty]: Start isEmpty. Operand 250906 states and 1328200 transitions. [2020-10-15 22:22:37,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-15 22:22:37,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:22:37,120 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-15 22:22:37,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-15 22:22:37,334 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:22:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:22:37,334 INFO L82 PathProgramCache]: Analyzing trace with hash 615477270, now seen corresponding path program 1 times [2020-10-15 22:22:37,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:22:37,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254071307] [2020-10-15 22:22:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:22:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:22:37,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:22:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 22:22:37,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-15 22:22:37,357 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-15 22:22:37,357 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 22:22:37,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-15 22:22:37,358 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-15 22:22:37,358 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-15 22:22:37,358 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-15 22:22:37,369 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,369 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,369 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,369 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,370 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,371 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,372 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,373 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,374 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,375 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,376 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,377 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,378 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,379 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,380 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,381 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,382 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,383 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,384 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,385 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,386 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,387 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,388 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,389 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,390 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,391 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,392 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,392 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,392 WARN L313 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,392 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,392 WARN L313 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,393 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,394 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,395 WARN L313 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,395 WARN L313 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,396 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,396 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,396 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,396 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,397 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,397 WARN L313 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,397 WARN L313 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,398 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,398 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,399 WARN L313 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,400 WARN L313 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,401 WARN L313 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,402 WARN L313 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:22:37,403 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-15 22:22:37,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:22:37,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:22:37,404 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:22:37,404 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:22:37,404 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:22:37,404 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:22:37,404 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:22:37,404 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:22:37,406 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:22:37,407 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 169 transitions, 383 flow [2020-10-15 22:22:37,407 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 169 transitions, 383 flow [2020-10-15 22:22:37,407 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 158 places, 169 transitions, 383 flow [2020-10-15 22:22:37,437 INFO L129 PetriNetUnfolder]: 27/218 cut-off events. [2020-10-15 22:22:37,438 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-15 22:22:37,442 INFO L80 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 218 events. 27/218 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 715 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 194. Up to 12 conditions per place. [2020-10-15 22:22:37,458 INFO L117 LiptonReduction]: Number of co-enabled transitions 16900 [2020-10-15 22:22:41,137 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 21 [2020-10-15 22:22:42,215 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-10-15 22:22:42,418 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2020-10-15 22:22:42,489 INFO L132 LiptonReduction]: Checked pairs total: 42664 [2020-10-15 22:22:42,489 INFO L134 LiptonReduction]: Total number of compositions: 146 [2020-10-15 22:22:42,489 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 60 transitions, 165 flow [2020-10-15 22:26:10,294 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 324769 states. [2020-10-15 22:26:10,294 INFO L276 IsEmpty]: Start isEmpty. Operand 324769 states. [2020-10-15 22:26:10,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-15 22:26:10,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:26:10,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:26:10,295 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:26:10,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:26:10,295 INFO L82 PathProgramCache]: Analyzing trace with hash 892908758, now seen corresponding path program 1 times [2020-10-15 22:26:10,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:26:10,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618913559] [2020-10-15 22:26:10,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:26:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:26:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:26:10,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618913559] [2020-10-15 22:26:10,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:26:10,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:26:10,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243878534] [2020-10-15 22:26:10,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:26:10,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:26:10,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:26:10,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:26:10,324 INFO L87 Difference]: Start difference. First operand 324769 states. Second operand 3 states. [2020-10-15 22:26:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:26:14,974 INFO L93 Difference]: Finished difference Result 344451 states and 2104167 transitions. [2020-10-15 22:26:14,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:26:14,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-15 22:26:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:26:16,576 INFO L225 Difference]: With dead ends: 344451 [2020-10-15 22:26:16,576 INFO L226 Difference]: Without dead ends: 344451 [2020-10-15 22:26:16,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:26:37,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344451 states. [2020-10-15 22:26:49,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344451 to 315747. [2020-10-15 22:26:49,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315747 states. [2020-10-15 22:27:17,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315747 states to 315747 states and 1957524 transitions. [2020-10-15 22:27:17,027 INFO L78 Accepts]: Start accepts. Automaton has 315747 states and 1957524 transitions. Word has length 7 [2020-10-15 22:27:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:27:17,027 INFO L481 AbstractCegarLoop]: Abstraction has 315747 states and 1957524 transitions. [2020-10-15 22:27:17,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:27:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 315747 states and 1957524 transitions. [2020-10-15 22:27:17,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:27:17,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:27:17,028 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:27:17,028 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-15 22:27:17,028 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:27:17,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:27:17,029 INFO L82 PathProgramCache]: Analyzing trace with hash 297146216, now seen corresponding path program 1 times [2020-10-15 22:27:17,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:27:17,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128891764] [2020-10-15 22:27:17,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:27:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:27:17,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 22:27:17,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128891764] [2020-10-15 22:27:17,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:27:17,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:27:17,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736436771] [2020-10-15 22:27:17,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 22:27:17,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:27:17,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 22:27:17,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:27:17,049 INFO L87 Difference]: Start difference. First operand 315747 states and 1957524 transitions. Second operand 3 states. [2020-10-15 22:27:36,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:27:36,437 INFO L93 Difference]: Finished difference Result 420984 states and 2563236 transitions. [2020-10-15 22:27:36,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 22:27:36,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-15 22:27:36,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:27:38,316 INFO L225 Difference]: With dead ends: 420984 [2020-10-15 22:27:38,316 INFO L226 Difference]: Without dead ends: 420984 [2020-10-15 22:27:38,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 22:27:57,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420984 states. [2020-10-15 22:28:07,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420984 to 385905. [2020-10-15 22:28:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385905 states. [2020-10-15 22:28:30,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385905 states to 385905 states and 2384718 transitions. [2020-10-15 22:28:30,495 INFO L78 Accepts]: Start accepts. Automaton has 385905 states and 2384718 transitions. Word has length 10 [2020-10-15 22:28:30,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:28:30,495 INFO L481 AbstractCegarLoop]: Abstraction has 385905 states and 2384718 transitions. [2020-10-15 22:28:30,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 22:28:30,495 INFO L276 IsEmpty]: Start isEmpty. Operand 385905 states and 2384718 transitions. [2020-10-15 22:28:30,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:28:30,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:28:30,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:28:30,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-15 22:28:30,496 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:28:30,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:28:30,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1877729312, now seen corresponding path program 1 times [2020-10-15 22:28:30,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:28:30,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75546015] [2020-10-15 22:28:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:28:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:28:30,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:28:30,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75546015] [2020-10-15 22:28:30,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:28:30,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:28:30,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359843462] [2020-10-15 22:28:30,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:28:30,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:28:30,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:28:30,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:28:30,535 INFO L87 Difference]: Start difference. First operand 385905 states and 2384718 transitions. Second operand 4 states. [2020-10-15 22:29:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:29:00,372 INFO L93 Difference]: Finished difference Result 847607 states and 5191877 transitions. [2020-10-15 22:29:00,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:29:00,372 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-15 22:29:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:29:04,434 INFO L225 Difference]: With dead ends: 847607 [2020-10-15 22:29:04,435 INFO L226 Difference]: Without dead ends: 847607 [2020-10-15 22:29:04,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:29:43,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847607 states. [2020-10-15 22:30:01,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847607 to 577854. [2020-10-15 22:30:01,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577854 states.