/usr/bin/java -Xmx8000000000 -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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread/stack_longest-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:11:41,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:11:41,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:11:41,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:11:41,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:11:41,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:11:41,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:11:41,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:11:41,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:11:41,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:11:41,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:11:41,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:11:41,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:11:41,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:11:41,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:11:41,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:11:41,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:11:41,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:11:41,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:11:41,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:11:41,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:11:41,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:11:41,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:11:41,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:11:41,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:11:41,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-05 23:11:41,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-05 23:11:41,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-05 23:11:41,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-05 23:11:41,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-05 23:11:41,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-05 23:11:41,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-05 23:11:41,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-05 23:11:41,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:11:41,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:11:41,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:11:41,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:11:41,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:11:41,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:11:41,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:11:41,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:11:41,402 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:11:41,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:11:41,403 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:11:41,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:11:41,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:11:41,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:11:41,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:11:41,405 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:11:41,405 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:11:41,406 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:11:41,406 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:11:41,406 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:11:41,406 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:11:41,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:11:41,407 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:11:41,407 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:11:41,407 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:11:41,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:11:41,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:11:41,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:11:41,736 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:11:41,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:11:41,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:11:41,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:11:41,752 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:11:41,753 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-05 23:11:41,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6781f8fe/79a16aabe7384ee8892c21b1d4ad3b95/FLAG75a47445e [2020-10-05 23:11:42,488 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:11:42,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longest-1.i [2020-10-05 23:11:42,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6781f8fe/79a16aabe7384ee8892c21b1d4ad3b95/FLAG75a47445e [2020-10-05 23:11:42,685 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6781f8fe/79a16aabe7384ee8892c21b1d4ad3b95 [2020-10-05 23:11:42,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:11:42,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:11:42,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:11:42,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:11:42,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:11:42,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:11:42" (1/1) ... [2020-10-05 23:11:42,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f3c4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:42, skipping insertion in model container [2020-10-05 23:11:42,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:11:42" (1/1) ... [2020-10-05 23:11:42,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:11:42,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:11:43,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:11:43,321 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:11:43,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:11:43,557 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:11:43,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43 WrapperNode [2020-10-05 23:11:43,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:11:43,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:11:43,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:11:43,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:11:43,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:11:43,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:11:43,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:11:43,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:11:43,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (1/1) ... [2020-10-05 23:11:43,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:11:43,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:11:43,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:11:43,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:11:43,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (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 [2020-10-05 23:11:43,756 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-05 23:11:43,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-05 23:11:43,757 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-05 23:11:43,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-05 23:11:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:11:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:11:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-05 23:11:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:11:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-05 23:11:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-05 23:11:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:11:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:11:43,764 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:11:44,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:11:44,284 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-05 23:11:44,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:11:44 BoogieIcfgContainer [2020-10-05 23:11:44,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:11:44,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:11:44,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:11:44,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:11:44,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:11:42" (1/3) ... [2020-10-05 23:11:44,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5405da68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:11:44, skipping insertion in model container [2020-10-05 23:11:44,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:11:43" (2/3) ... [2020-10-05 23:11:44,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5405da68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:11:44, skipping insertion in model container [2020-10-05 23:11:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:11:44" (3/3) ... [2020-10-05 23:11:44,297 INFO L109 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-10-05 23:11:44,308 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:11:44,309 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:11:44,317 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 23:11:44,319 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:11:44,360 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,360 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,361 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,362 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,362 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,362 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,363 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,363 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,363 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,363 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,364 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,364 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,364 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,365 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,365 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,365 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,366 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,366 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,366 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,367 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,368 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,368 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,368 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,369 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,369 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,369 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,370 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,370 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,370 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,371 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,372 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,392 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,392 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,392 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,393 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,393 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,393 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,393 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,394 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,394 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,394 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,395 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,395 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,395 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,396 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,396 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,396 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,397 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,397 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,398 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,401 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,401 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,402 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,402 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,402 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,403 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,403 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,404 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,405 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,405 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,406 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,407 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,407 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,407 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,407 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,407 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,408 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,408 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,409 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,409 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,409 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,410 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,410 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,411 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,411 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,411 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,411 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,412 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,412 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,412 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,413 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,414 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,415 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,416 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,420 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,420 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,420 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,422 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,429 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,430 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,431 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,431 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,432 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,433 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,434 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,435 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,435 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,435 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,436 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,440 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,441 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,441 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,442 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,442 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,443 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,443 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,444 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post41| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,444 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,451 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,452 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,452 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,453 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,454 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,454 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,455 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,455 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,455 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:11:44,479 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-05 23:11:44,502 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:11:44,502 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:11:44,502 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:11:44,502 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:11:44,503 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:11:44,503 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:11:44,503 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:11:44,503 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:11:44,526 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 145 transitions, 312 flow [2020-10-05 23:11:44,528 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-05 23:11:44,636 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-05 23:11:44,636 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:11:44,645 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-05 23:11:44,653 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 140 places, 145 transitions, 312 flow [2020-10-05 23:11:44,688 INFO L129 PetriNetUnfolder]: 11/145 cut-off events. [2020-10-05 23:11:44,689 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-05 23:11:44,691 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 145 events. 11/145 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 385 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 113. Up to 3 conditions per place. [2020-10-05 23:11:44,697 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6532 [2020-10-05 23:11:44,699 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:11:47,264 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-05 23:11:47,856 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-10-05 23:11:48,067 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-10-05 23:11:48,082 INFO L206 etLargeBlockEncoding]: Checked pairs total: 7651 [2020-10-05 23:11:48,082 INFO L214 etLargeBlockEncoding]: Total number of compositions: 122 [2020-10-05 23:11:48,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 104 flow [2020-10-05 23:11:48,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 360 states. [2020-10-05 23:11:48,117 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states. [2020-10-05 23:11:48,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-05 23:11:48,125 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:48,126 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-05 23:11:48,126 INFO L427 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:48,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:48,133 INFO L82 PathProgramCache]: Analyzing trace with hash 475986746, now seen corresponding path program 1 times [2020-10-05 23:11:48,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:48,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263300568] [2020-10-05 23:11:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:48,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263300568] [2020-10-05 23:11:48,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:48,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:11:48,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443427430] [2020-10-05 23:11:48,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:11:48,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:48,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:11:48,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:11:48,442 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 3 states. [2020-10-05 23:11:48,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:48,543 INFO L93 Difference]: Finished difference Result 652 states and 1665 transitions. [2020-10-05 23:11:48,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:11:48,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-05 23:11:48,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:48,569 INFO L225 Difference]: With dead ends: 652 [2020-10-05 23:11:48,569 INFO L226 Difference]: Without dead ends: 630 [2020-10-05 23:11:48,570 INFO L675 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 [2020-10-05 23:11:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2020-10-05 23:11:48,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 462. [2020-10-05 23:11:48,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-10-05 23:11:48,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1240 transitions. [2020-10-05 23:11:48,666 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1240 transitions. Word has length 6 [2020-10-05 23:11:48,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:48,666 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 1240 transitions. [2020-10-05 23:11:48,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:11:48,667 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1240 transitions. [2020-10-05 23:11:48,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:11:48,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:48,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:48,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:11:48,669 INFO L427 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:48,669 INFO L82 PathProgramCache]: Analyzing trace with hash 929097400, now seen corresponding path program 1 times [2020-10-05 23:11:48,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:48,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715114882] [2020-10-05 23:11:48,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:48,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:48,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715114882] [2020-10-05 23:11:48,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:48,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:11:48,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498838725] [2020-10-05 23:11:48,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:11:48,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:48,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:11:48,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:11:48,748 INFO L87 Difference]: Start difference. First operand 462 states and 1240 transitions. Second operand 3 states. [2020-10-05 23:11:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:48,765 INFO L93 Difference]: Finished difference Result 561 states and 1452 transitions. [2020-10-05 23:11:48,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:11:48,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-05 23:11:48,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:48,770 INFO L225 Difference]: With dead ends: 561 [2020-10-05 23:11:48,770 INFO L226 Difference]: Without dead ends: 539 [2020-10-05 23:11:48,771 INFO L675 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 [2020-10-05 23:11:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-05 23:11:48,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 499. [2020-10-05 23:11:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-10-05 23:11:48,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 1332 transitions. [2020-10-05 23:11:48,835 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 1332 transitions. Word has length 9 [2020-10-05 23:11:48,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:48,841 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 1332 transitions. [2020-10-05 23:11:48,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:11:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 1332 transitions. [2020-10-05 23:11:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-05 23:11:48,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:48,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:48,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:11:48,843 INFO L427 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:48,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:48,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1857688102, now seen corresponding path program 1 times [2020-10-05 23:11:48,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:48,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754170356] [2020-10-05 23:11:48,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:48,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:48,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754170356] [2020-10-05 23:11:48,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:48,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:11:48,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647110247] [2020-10-05 23:11:48,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:11:48,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:48,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:11:48,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:11:48,971 INFO L87 Difference]: Start difference. First operand 499 states and 1332 transitions. Second operand 3 states. [2020-10-05 23:11:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:48,988 INFO L93 Difference]: Finished difference Result 539 states and 1435 transitions. [2020-10-05 23:11:48,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:11:48,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-05 23:11:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:48,993 INFO L225 Difference]: With dead ends: 539 [2020-10-05 23:11:48,994 INFO L226 Difference]: Without dead ends: 539 [2020-10-05 23:11:48,994 INFO L675 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 [2020-10-05 23:11:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-05 23:11:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-05 23:11:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-05 23:11:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1435 transitions. [2020-10-05 23:11:49,016 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1435 transitions. Word has length 10 [2020-10-05 23:11:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:49,016 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 1435 transitions. [2020-10-05 23:11:49,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:11:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1435 transitions. [2020-10-05 23:11:49,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-05 23:11:49,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:49,018 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:49,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:11:49,019 INFO L427 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:49,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:49,019 INFO L82 PathProgramCache]: Analyzing trace with hash -2118228877, now seen corresponding path program 1 times [2020-10-05 23:11:49,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:49,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328151113] [2020-10-05 23:11:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:49,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:49,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:49,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328151113] [2020-10-05 23:11:49,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753354818] [2020-10-05 23:11:49,129 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 [2020-10-05 23:11:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:49,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-05 23:11:49,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-05 23:11:49,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:49,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-05 23:11:49,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-05 23:11:49,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639051991] [2020-10-05 23:11:49,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-05 23:11:49,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:49,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-05 23:11:49,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-05 23:11:49,319 INFO L87 Difference]: Start difference. First operand 539 states and 1435 transitions. Second operand 7 states. [2020-10-05 23:11:49,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:49,421 INFO L93 Difference]: Finished difference Result 1015 states and 2609 transitions. [2020-10-05 23:11:49,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-05 23:11:49,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-05 23:11:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:49,429 INFO L225 Difference]: With dead ends: 1015 [2020-10-05 23:11:49,429 INFO L226 Difference]: Without dead ends: 1015 [2020-10-05 23:11:49,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:11:49,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2020-10-05 23:11:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 739. [2020-10-05 23:11:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-05 23:11:49,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1976 transitions. [2020-10-05 23:11:49,462 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1976 transitions. Word has length 14 [2020-10-05 23:11:49,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:49,463 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1976 transitions. [2020-10-05 23:11:49,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-05 23:11:49,463 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1976 transitions. [2020-10-05 23:11:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-05 23:11:49,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:49,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:49,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-05 23:11:49,680 INFO L427 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:49,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:49,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1012308327, now seen corresponding path program 1 times [2020-10-05 23:11:49,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:49,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30320150] [2020-10-05 23:11:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:49,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:49,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30320150] [2020-10-05 23:11:49,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:49,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:11:49,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520859436] [2020-10-05 23:11:49,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:11:49,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:49,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:11:49,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:11:49,757 INFO L87 Difference]: Start difference. First operand 739 states and 1976 transitions. Second operand 4 states. [2020-10-05 23:11:49,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:49,808 INFO L93 Difference]: Finished difference Result 354 states and 799 transitions. [2020-10-05 23:11:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:11:49,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-05 23:11:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:49,811 INFO L225 Difference]: With dead ends: 354 [2020-10-05 23:11:49,812 INFO L226 Difference]: Without dead ends: 354 [2020-10-05 23:11:49,812 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:11:49,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2020-10-05 23:11:49,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 328. [2020-10-05 23:11:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-10-05 23:11:49,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 732 transitions. [2020-10-05 23:11:49,824 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 732 transitions. Word has length 17 [2020-10-05 23:11:49,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:49,825 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 732 transitions. [2020-10-05 23:11:49,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:11:49,825 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 732 transitions. [2020-10-05 23:11:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-05 23:11:49,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:49,827 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:49,827 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-05 23:11:49,827 INFO L427 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:49,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:49,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1241376286, now seen corresponding path program 1 times [2020-10-05 23:11:49,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:49,828 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121107794] [2020-10-05 23:11:49,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:49,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:49,901 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121107794] [2020-10-05 23:11:49,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:49,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:11:49,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247239255] [2020-10-05 23:11:49,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-05 23:11:49,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:49,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-05 23:11:49,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-05 23:11:49,903 INFO L87 Difference]: Start difference. First operand 328 states and 732 transitions. Second operand 5 states. [2020-10-05 23:11:50,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:50,006 INFO L93 Difference]: Finished difference Result 500 states and 1111 transitions. [2020-10-05 23:11:50,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-05 23:11:50,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-05 23:11:50,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:50,010 INFO L225 Difference]: With dead ends: 500 [2020-10-05 23:11:50,010 INFO L226 Difference]: Without dead ends: 500 [2020-10-05 23:11:50,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-05 23:11:50,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2020-10-05 23:11:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 373. [2020-10-05 23:11:50,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-05 23:11:50,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 837 transitions. [2020-10-05 23:11:50,023 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 837 transitions. Word has length 18 [2020-10-05 23:11:50,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:50,024 INFO L479 AbstractCegarLoop]: Abstraction has 373 states and 837 transitions. [2020-10-05 23:11:50,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-05 23:11:50,024 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 837 transitions. [2020-10-05 23:11:50,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 23:11:50,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:50,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:50,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-05 23:11:50,026 INFO L427 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:50,027 INFO L82 PathProgramCache]: Analyzing trace with hash 624388862, now seen corresponding path program 1 times [2020-10-05 23:11:50,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:50,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987972718] [2020-10-05 23:11:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:50,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:50,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987972718] [2020-10-05 23:11:50,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:50,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-05 23:11:50,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867647883] [2020-10-05 23:11:50,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-05 23:11:50,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:50,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-05 23:11:50,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-05 23:11:50,467 INFO L87 Difference]: Start difference. First operand 373 states and 837 transitions. Second operand 10 states. [2020-10-05 23:11:51,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:51,077 INFO L93 Difference]: Finished difference Result 698 states and 1547 transitions. [2020-10-05 23:11:51,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 23:11:51,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-05 23:11:51,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:51,083 INFO L225 Difference]: With dead ends: 698 [2020-10-05 23:11:51,084 INFO L226 Difference]: Without dead ends: 698 [2020-10-05 23:11:51,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2020-10-05 23:11:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2020-10-05 23:11:51,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 524. [2020-10-05 23:11:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 524 states. [2020-10-05 23:11:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1213 transitions. [2020-10-05 23:11:51,105 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1213 transitions. Word has length 22 [2020-10-05 23:11:51,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:51,106 INFO L479 AbstractCegarLoop]: Abstraction has 524 states and 1213 transitions. [2020-10-05 23:11:51,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-05 23:11:51,106 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1213 transitions. [2020-10-05 23:11:51,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 23:11:51,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:51,108 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-05 23:11:51,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-05 23:11:51,108 INFO L427 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:51,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:51,109 INFO L82 PathProgramCache]: Analyzing trace with hash 752977068, now seen corresponding path program 2 times [2020-10-05 23:11:51,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:51,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672299938] [2020-10-05 23:11:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:51,231 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:51,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672299938] [2020-10-05 23:11:51,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273637606] [2020-10-05 23:11:51,232 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 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 [2020-10-05 23:11:51,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-05 23:11:51,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-05 23:11:51,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-05 23:11:51,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-05 23:11:51,358 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:51,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-05 23:11:51,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-05 23:11:51,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059074286] [2020-10-05 23:11:51,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-05 23:11:51,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:51,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-05 23:11:51,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-05 23:11:51,360 INFO L87 Difference]: Start difference. First operand 524 states and 1213 transitions. Second operand 9 states. [2020-10-05 23:11:51,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:51,463 INFO L93 Difference]: Finished difference Result 866 states and 1943 transitions. [2020-10-05 23:11:51,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:11:51,464 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-05 23:11:51,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:51,469 INFO L225 Difference]: With dead ends: 866 [2020-10-05 23:11:51,469 INFO L226 Difference]: Without dead ends: 866 [2020-10-05 23:11:51,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-05 23:11:51,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-10-05 23:11:51,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 616. [2020-10-05 23:11:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2020-10-05 23:11:51,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 1417 transitions. [2020-10-05 23:11:51,490 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 1417 transitions. Word has length 22 [2020-10-05 23:11:51,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:51,490 INFO L479 AbstractCegarLoop]: Abstraction has 616 states and 1417 transitions. [2020-10-05 23:11:51,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-05 23:11:51,491 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 1417 transitions. [2020-10-05 23:11:51,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-05 23:11:51,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:51,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:51,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-05 23:11:51,706 INFO L427 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:51,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:51,707 INFO L82 PathProgramCache]: Analyzing trace with hash 434974922, now seen corresponding path program 2 times [2020-10-05 23:11:51,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:51,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205841082] [2020-10-05 23:11:51,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:52,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205841082] [2020-10-05 23:11:52,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:11:52,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-05 23:11:52,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739208894] [2020-10-05 23:11:52,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-05 23:11:52,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:52,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-05 23:11:52,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-05 23:11:52,122 INFO L87 Difference]: Start difference. First operand 616 states and 1417 transitions. Second operand 10 states. [2020-10-05 23:11:52,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:52,684 INFO L93 Difference]: Finished difference Result 931 states and 2095 transitions. [2020-10-05 23:11:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-05 23:11:52,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-10-05 23:11:52,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:52,691 INFO L225 Difference]: With dead ends: 931 [2020-10-05 23:11:52,691 INFO L226 Difference]: Without dead ends: 931 [2020-10-05 23:11:52,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-10-05 23:11:52,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-10-05 23:11:52,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 602. [2020-10-05 23:11:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2020-10-05 23:11:52,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1380 transitions. [2020-10-05 23:11:52,710 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1380 transitions. Word has length 22 [2020-10-05 23:11:52,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:52,711 INFO L479 AbstractCegarLoop]: Abstraction has 602 states and 1380 transitions. [2020-10-05 23:11:52,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-05 23:11:52,711 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1380 transitions. [2020-10-05 23:11:52,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-05 23:11:52,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:52,712 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:52,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-05 23:11:52,713 INFO L427 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:52,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:52,713 INFO L82 PathProgramCache]: Analyzing trace with hash -333091595, now seen corresponding path program 1 times [2020-10-05 23:11:52,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:52,714 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750494333] [2020-10-05 23:11:52,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:11:52,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750494333] [2020-10-05 23:11:52,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563303077] [2020-10-05 23:11:52,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-05 23:11:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:11:52,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-05 23:11:52,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-05 23:11:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-05 23:11:52,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-05 23:11:52,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-05 23:11:52,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178498276] [2020-10-05 23:11:52,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-05 23:11:52,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:11:52,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-05 23:11:52,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-05 23:11:52,962 INFO L87 Difference]: Start difference. First operand 602 states and 1380 transitions. Second operand 6 states. [2020-10-05 23:11:53,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:11:53,053 INFO L93 Difference]: Finished difference Result 834 states and 1865 transitions. [2020-10-05 23:11:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-05 23:11:53,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-05 23:11:53,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:11:53,059 INFO L225 Difference]: With dead ends: 834 [2020-10-05 23:11:53,060 INFO L226 Difference]: Without dead ends: 834 [2020-10-05 23:11:53,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-05 23:11:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-10-05 23:11:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 630. [2020-10-05 23:11:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-10-05 23:11:53,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 1456 transitions. [2020-10-05 23:11:53,079 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 1456 transitions. Word has length 25 [2020-10-05 23:11:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:11:53,080 INFO L479 AbstractCegarLoop]: Abstraction has 630 states and 1456 transitions. [2020-10-05 23:11:53,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-05 23:11:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 1456 transitions. [2020-10-05 23:11:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-05 23:11:53,081 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:11:53,082 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:11:53,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-05 23:11:53,296 INFO L427 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:11:53,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:11:53,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1736562886, now seen corresponding path program 1 times [2020-10-05 23:11:53,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:11:53,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998273558] [2020-10-05 23:11:53,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:11:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 23:11:53,332 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 23:11:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-05 23:11:53,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-05 23:11:53,397 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-05 23:11:53,397 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-05 23:11:53,397 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-05 23:11:53,398 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-05 23:11:53,398 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-05 23:11:53,399 WARN L633 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-05 23:11:53,405 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [557] [557] L3-->L977-1: Formula: (and (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out205799665 0)) (let ((.cse1 (mod t1Thread1of1ForFork0_~tmp~0_In205799665 4294967296))) (let ((.cse0 (<= .cse1 2147483647))) (or (and .cse0 (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out205799665|)) (and (not .cse0) (= (+ .cse1 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out205799665|))))) (= |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In205799665| t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out205799665) (= |~#arr~0.offset_In205799665| |t1Thread1of1ForFork0_push_#in~stack.offset_Out205799665|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out205799665| |~#arr~0.base_In205799665|)) InVars {~#arr~0.offset=|~#arr~0.offset_In205799665|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In205799665, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In205799665|, ~#arr~0.base=|~#arr~0.base_In205799665|} OutVars{~#arr~0.offset=|~#arr~0.offset_In205799665|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out205799665|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_Out205799665, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out205799665|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In205799665, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out205799665|, t1Thread1of1ForFork0_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork0_assume_abort_if_not_#in~cond_In205799665|, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out205799665|, ~#arr~0.base=|~#arr~0.base_In205799665|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_assume_abort_if_not_~cond, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset] because there is no mapped edge [2020-10-05 23:11:53,410 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [558] [558] L977-2-->L980: Formula: (and (<= 0 (+ |t1Thread1of1ForFork0_#t~ret44_In-1432492348| 2147483648)) (= ~flag~0_Out-1432492348 1) (<= |t1Thread1of1ForFork0_#t~ret44_In-1432492348| 2147483647) (not (= (- 1) |t1Thread1of1ForFork0_#t~ret44_In-1432492348|))) InVars {t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_In-1432492348|} OutVars{t1Thread1of1ForFork0_#t~ret44=|t1Thread1of1ForFork0_#t~ret44_Out-1432492348|, ~flag~0=~flag~0_Out-1432492348} AuxVars[] AssignedVars[t1Thread1of1ForFork0_#t~ret44, ~flag~0] because there is no mapped edge [2020-10-05 23:11:53,416 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [569] [569] L992-4-->L987-6: Formula: (and (not (= |t2Thread1of1ForFork1_#t~ret47_In785455435| (- 2))) (= t2Thread1of1ForFork1_~i~1_In785455435 (+ t2Thread1of1ForFork1_~i~1_Out785455435 (- 1))) (= |#pthreadsMutex_Out785455435| (store |#pthreadsMutex_In785455435| |~#m~0.base_In785455435| (store (select |#pthreadsMutex_In785455435| |~#m~0.base_In785455435|) |~#m~0.offset_In785455435| 0)))) InVars {#pthreadsMutex=|#pthreadsMutex_In785455435|, ~#m~0.base=|~#m~0.base_In785455435|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_In785455435|, ~#m~0.offset=|~#m~0.offset_In785455435|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In785455435} OutVars{#pthreadsMutex=|#pthreadsMutex_Out785455435|, t2Thread1of1ForFork1_#t~ret47=|t2Thread1of1ForFork1_#t~ret47_Out785455435|, ~#m~0.base=|~#m~0.base_In785455435|, ~#m~0.offset=|~#m~0.offset_In785455435|, t2Thread1of1ForFork1_#t~post45=|t2Thread1of1ForFork1_#t~post45_Out785455435|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out785455435} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_#t~ret47, t2Thread1of1ForFork1_#t~post45, t2Thread1of1ForFork1_~i~1] because there is no mapped edge [2020-10-05 23:11:53,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:11:53 BasicIcfg [2020-10-05 23:11:53,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:11:53,489 INFO L168 Benchmark]: Toolchain (without parser) took 10791.43 ms. Allocated memory was 137.9 MB in the beginning and 332.9 MB in the end (delta: 195.0 MB). Free memory was 98.8 MB in the beginning and 116.0 MB in the end (delta: -17.3 MB). Peak memory consumption was 177.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,495 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 862.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 133.2 MB in the end (delta: -34.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.08 ms. Allocated memory is still 202.4 MB. Free memory was 133.2 MB in the beginning and 130.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,499 INFO L168 Benchmark]: Boogie Preprocessor took 38.77 ms. Allocated memory is still 202.4 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,505 INFO L168 Benchmark]: RCFGBuilder took 618.41 ms. Allocated memory is still 202.4 MB. Free memory was 128.4 MB in the beginning and 95.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,507 INFO L168 Benchmark]: TraceAbstraction took 9197.46 ms. Allocated memory was 202.4 MB in the beginning and 332.9 MB in the end (delta: 130.5 MB). Free memory was 94.7 MB in the beginning and 116.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 109.2 MB. Max. memory is 7.1 GB. [2020-10-05 23:11:53,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 862.34 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 98.5 MB in the beginning and 133.2 MB in the end (delta: -34.6 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.08 ms. Allocated memory is still 202.4 MB. Free memory was 133.2 MB in the beginning and 130.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.77 ms. Allocated memory is still 202.4 MB. Free memory was 130.4 MB in the beginning and 128.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 618.41 ms. Allocated memory is still 202.4 MB. Free memory was 128.4 MB in the beginning and 95.3 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9197.46 ms. Allocated memory was 202.4 MB in the beginning and 332.9 MB in the end (delta: 130.5 MB). Free memory was 94.7 MB in the beginning and 116.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 109.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.5s, 140 ProgramPointsBefore, 41 ProgramPointsAfterwards, 145 TransitionsBefore, 41 TransitionsAfterwards, 6532 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 5 ChoiceCompositions, 3568 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 7651 CheckedPairsTotal, 122 TotalNumberOfCompositions - CounterExampleResult [Line: 922]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L916] 0 static int top=0; [L917] 0 static unsigned int arr[(800)]; [L918] 0 pthread_mutex_t m; [L919] 0 _Bool flag=(0); [L1001] 0 pthread_t id1, id2; [L1003] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L970] 1 int i; [L971] 1 unsigned int tmp; [L972] 1 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L972] COND TRUE 1 i<(800) [L975] 1 tmp = __VERIFIER_nondet_uint() [L942] COND FALSE 1 !(top==(800)) [L1004] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L986] 2 int i; [L987] 2 i=0 VAL [arr={9:0}, flag=0, m={3:0}, top=0] [L934] 1 return top; [L949] 1 stack[get_top()] = x [L926] 1 top++ [L952] 1 return 0; [L972] 1 i++ VAL [arr={9:0}, flag=1, m={3:0}, top=1] [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND FALSE 2 !(get_top()==0) [L930] 2 top-- [L934] 2 return top; VAL [arr={9:0}, flag=1, m={3:0}, top=0] [L964] EXPR 2 stack[get_top()] [L964] 2 return stack[get_top()]; [L987] COND TRUE 2 i<(800) [L990] COND TRUE 2 \read(flag) [L934] 2 return top; [L956] COND TRUE 2 get_top()==0 [L959] 2 return (-2); [L992] COND TRUE 2 !(pop(arr)!=(-2)) [L922] 2 __VERIFIER_error() VAL [arr={9:0}, flag=1, m={3:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 134 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.8s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 470 SDtfs, 688 SDslu, 1141 SDs, 0 SdLazy, 627 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 122 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=739occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1594 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 35176 SizeOfPredicates, 9 NumberOfNonLiveVariables, 517 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 10/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...