/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stack_longer-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 21:33:30,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 21:33:30,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 21:33:30,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 21:33:30,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 21:33:30,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 21:33:30,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 21:33:30,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 21:33:30,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 21:33:30,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 21:33:30,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 21:33:30,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 21:33:30,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 21:33:30,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 21:33:30,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 21:33:30,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 21:33:30,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 21:33:30,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 21:33:30,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 21:33:30,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 21:33:30,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 21:33:30,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 21:33:30,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 21:33:30,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 21:33:30,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-21 21:33:30,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 21:33:30,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 21:33:30,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 21:33:30,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 21:33:30,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 21:33:30,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 21:33:30,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 21:33:30,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 21:33:30,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 21:33:30,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 21:33:30,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 21:33:30,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-21 21:33:30,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 21:33:30,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 21:33:30,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 21:33:30,965 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 21:33:30,966 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 21:33:30,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 21:33:30,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 21:33:30,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 21:33:30,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 21:33:30,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 21:33:30,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 21:33:30,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 21:33:30,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 21:33:30,969 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 21:33:30,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 21:33:30,969 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 21:33:30,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 21:33:30,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 21:33:30,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 21:33:30,970 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 21:33:30,970 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 21:33:30,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 21:33:30,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 21:33:30,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 21:33:30,971 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 21:33:30,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 21:33:30,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 21:33:30,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 21:33:30,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 21:33:30,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 21:33:31,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 21:33:31,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 21:33:31,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 21:33:31,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 21:33:31,324 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 21:33:31,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-21 21:33:31,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf3eee47/32035b8986f94aa58bd32c3e7c0c04ce/FLAGffe17c0b6 [2020-10-21 21:33:32,048 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 21:33:32,049 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stack_longer-1.i [2020-10-21 21:33:32,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf3eee47/32035b8986f94aa58bd32c3e7c0c04ce/FLAGffe17c0b6 [2020-10-21 21:33:32,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecf3eee47/32035b8986f94aa58bd32c3e7c0c04ce [2020-10-21 21:33:32,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 21:33:32,297 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 21:33:32,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 21:33:32,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 21:33:32,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 21:33:32,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:33:32" (1/1) ... [2020-10-21 21:33:32,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0dc502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:32, skipping insertion in model container [2020-10-21 21:33:32,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 09:33:32" (1/1) ... [2020-10-21 21:33:32,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 21:33:32,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 21:33:32,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:33:33,006 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 21:33:33,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 21:33:33,265 INFO L208 MainTranslator]: Completed translation [2020-10-21 21:33:33,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33 WrapperNode [2020-10-21 21:33:33,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 21:33:33,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 21:33:33,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 21:33:33,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 21:33:33,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 21:33:33,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 21:33:33,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 21:33:33,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 21:33:33,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (1/1) ... [2020-10-21 21:33:33,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 21:33:33,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 21:33:33,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 21:33:33,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 21:33:33,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (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 [2020-10-21 21:33:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-10-21 21:33:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-10-21 21:33:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-10-21 21:33:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-10-21 21:33:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 21:33:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 21:33:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-21 21:33:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 21:33:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-21 21:33:33,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 21:33:33,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 21:33:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 21:33:33,634 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 21:33:34,402 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 21:33:34,402 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-10-21 21:33:34,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:33:34 BoogieIcfgContainer [2020-10-21 21:33:34,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 21:33:34,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 21:33:34,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 21:33:34,412 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 21:33:34,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 09:33:32" (1/3) ... [2020-10-21 21:33:34,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48120f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:33:34, skipping insertion in model container [2020-10-21 21:33:34,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 09:33:33" (2/3) ... [2020-10-21 21:33:34,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48120f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 09:33:34, skipping insertion in model container [2020-10-21 21:33:34,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 09:33:34" (3/3) ... [2020-10-21 21:33:34,417 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longer-1.i [2020-10-21 21:33:34,433 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 21:33:34,434 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 21:33:34,444 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-21 21:33:34,445 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 21:33:34,518 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,518 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,519 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,520 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,520 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,520 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,520 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,521 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,521 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,522 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,522 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,522 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,522 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,523 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,523 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,524 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,524 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,525 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,525 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,526 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,526 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,527 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,528 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,529 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,529 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,530 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,530 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,531 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,532 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,532 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,533 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,533 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,534 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,535 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,535 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,535 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,535 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,536 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,537 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,538 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,538 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,539 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,539 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,539 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,539 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,540 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,540 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,540 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,540 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,540 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,541 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,541 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,541 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,542 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,543 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,547 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,548 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,548 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,548 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,548 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,548 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,549 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,550 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,552 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,553 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,553 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,554 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,554 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,555 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,556 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,561 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,561 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,562 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,562 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,577 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,578 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,578 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,579 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,579 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,580 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,581 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,581 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,582 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,582 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,582 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,582 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 21:33:34,599 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-21 21:33:34,615 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-21 21:33:34,640 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 21:33:34,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 21:33:34,642 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 21:33:34,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 21:33:34,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 21:33:34,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 21:33:34,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 21:33:34,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 21:33:34,669 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 21:33:34,673 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:34,676 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:34,679 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 340 flow [2020-10-21 21:33:34,774 INFO L129 PetriNetUnfolder]: 13/159 cut-off events. [2020-10-21 21:33:34,775 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-21 21:33:34,784 INFO L80 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 159 events. 13/159 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 432 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-10-21 21:33:34,794 INFO L116 LiptonReduction]: Number of co-enabled transitions 7732 [2020-10-21 21:33:37,012 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-10-21 21:33:38,325 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2020-10-21 21:33:38,510 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-21 21:33:39,924 WARN L193 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130 [2020-10-21 21:33:40,305 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-10-21 21:33:40,818 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-21 21:33:41,251 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-21 21:33:41,282 INFO L131 LiptonReduction]: Checked pairs total: 12551 [2020-10-21 21:33:41,283 INFO L133 LiptonReduction]: Total number of compositions: 153 [2020-10-21 21:33:41,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-10-21 21:33:41,323 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-10-21 21:33:41,325 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-10-21 21:33:41,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 21:33:41,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:41,335 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 21:33:41,336 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:41,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1741433428, now seen corresponding path program 1 times [2020-10-21 21:33:41,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:41,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435268159] [2020-10-21 21:33:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:41,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435268159] [2020-10-21 21:33:41,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:41,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:41,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770883480] [2020-10-21 21:33:41,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:41,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:41,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:41,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:41,665 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-10-21 21:33:41,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:41,753 INFO L93 Difference]: Finished difference Result 529 states and 1334 transitions. [2020-10-21 21:33:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:41,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-21 21:33:41,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:41,779 INFO L225 Difference]: With dead ends: 529 [2020-10-21 21:33:41,779 INFO L226 Difference]: Without dead ends: 507 [2020-10-21 21:33:41,781 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:41,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2020-10-21 21:33:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 467. [2020-10-21 21:33:41,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-21 21:33:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1235 transitions. [2020-10-21 21:33:41,880 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 1235 transitions. Word has length 6 [2020-10-21 21:33:41,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:41,881 INFO L481 AbstractCegarLoop]: Abstraction has 467 states and 1235 transitions. [2020-10-21 21:33:41,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1235 transitions. [2020-10-21 21:33:41,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 21:33:41,883 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:41,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:41,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 21:33:41,884 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:41,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:41,884 INFO L82 PathProgramCache]: Analyzing trace with hash -497887655, now seen corresponding path program 1 times [2020-10-21 21:33:41,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:41,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542944440] [2020-10-21 21:33:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:42,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542944440] [2020-10-21 21:33:42,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:42,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:42,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287609125] [2020-10-21 21:33:42,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:42,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:42,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:42,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,004 INFO L87 Difference]: Start difference. First operand 467 states and 1235 transitions. Second operand 3 states. [2020-10-21 21:33:42,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:42,029 INFO L93 Difference]: Finished difference Result 574 states and 1482 transitions. [2020-10-21 21:33:42,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:42,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-21 21:33:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:42,036 INFO L225 Difference]: With dead ends: 574 [2020-10-21 21:33:42,036 INFO L226 Difference]: Without dead ends: 552 [2020-10-21 21:33:42,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2020-10-21 21:33:42,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 512. [2020-10-21 21:33:42,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 512 states. [2020-10-21 21:33:42,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 1362 transitions. [2020-10-21 21:33:42,071 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 1362 transitions. Word has length 8 [2020-10-21 21:33:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:42,072 INFO L481 AbstractCegarLoop]: Abstraction has 512 states and 1362 transitions. [2020-10-21 21:33:42,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 1362 transitions. [2020-10-21 21:33:42,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 21:33:42,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:42,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:42,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 21:33:42,075 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:42,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:42,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1329492756, now seen corresponding path program 1 times [2020-10-21 21:33:42,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:42,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311940371] [2020-10-21 21:33:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:42,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311940371] [2020-10-21 21:33:42,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:42,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 21:33:42,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662932908] [2020-10-21 21:33:42,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:42,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:42,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:42,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,183 INFO L87 Difference]: Start difference. First operand 512 states and 1362 transitions. Second operand 3 states. [2020-10-21 21:33:42,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:42,201 INFO L93 Difference]: Finished difference Result 544 states and 1443 transitions. [2020-10-21 21:33:42,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:42,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-21 21:33:42,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:42,209 INFO L225 Difference]: With dead ends: 544 [2020-10-21 21:33:42,210 INFO L226 Difference]: Without dead ends: 544 [2020-10-21 21:33:42,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-10-21 21:33:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2020-10-21 21:33:42,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2020-10-21 21:33:42,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1443 transitions. [2020-10-21 21:33:42,234 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1443 transitions. Word has length 10 [2020-10-21 21:33:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:42,235 INFO L481 AbstractCegarLoop]: Abstraction has 544 states and 1443 transitions. [2020-10-21 21:33:42,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:42,235 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1443 transitions. [2020-10-21 21:33:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 21:33:42,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:42,237 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:42,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 21:33:42,238 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:42,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:42,238 INFO L82 PathProgramCache]: Analyzing trace with hash 695772916, now seen corresponding path program 1 times [2020-10-21 21:33:42,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:42,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69607970] [2020-10-21 21:33:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:42,362 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:42,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69607970] [2020-10-21 21:33:42,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783593061] [2020-10-21 21:33:42,363 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 [2020-10-21 21:33:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:42,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-21 21:33:42,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:33:42,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:42,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:33:42,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-21 21:33:42,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305451287] [2020-10-21 21:33:42,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-21 21:33:42,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:42,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-21 21:33:42,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 21:33:42,514 INFO L87 Difference]: Start difference. First operand 544 states and 1443 transitions. Second operand 7 states. [2020-10-21 21:33:42,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:42,605 INFO L93 Difference]: Finished difference Result 821 states and 2103 transitions. [2020-10-21 21:33:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:33:42,606 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-21 21:33:42,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:42,612 INFO L225 Difference]: With dead ends: 821 [2020-10-21 21:33:42,613 INFO L226 Difference]: Without dead ends: 821 [2020-10-21 21:33:42,613 INFO L677 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 [2020-10-21 21:33:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2020-10-21 21:33:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 668. [2020-10-21 21:33:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 668 states. [2020-10-21 21:33:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1762 transitions. [2020-10-21 21:33:42,640 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1762 transitions. Word has length 14 [2020-10-21 21:33:42,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:42,640 INFO L481 AbstractCegarLoop]: Abstraction has 668 states and 1762 transitions. [2020-10-21 21:33:42,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-21 21:33:42,640 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1762 transitions. [2020-10-21 21:33:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 21:33:42,643 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:42,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:42,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:42,858 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:42,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:42,858 INFO L82 PathProgramCache]: Analyzing trace with hash -570661862, now seen corresponding path program 1 times [2020-10-21 21:33:42,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:42,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086822433] [2020-10-21 21:33:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:42,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086822433] [2020-10-21 21:33:42,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:42,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 21:33:42,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641494032] [2020-10-21 21:33:42,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-21 21:33:42,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:42,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-21 21:33:42,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,944 INFO L87 Difference]: Start difference. First operand 668 states and 1762 transitions. Second operand 3 states. [2020-10-21 21:33:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:42,979 INFO L93 Difference]: Finished difference Result 359 states and 809 transitions. [2020-10-21 21:33:42,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-21 21:33:42,980 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-21 21:33:42,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:42,982 INFO L225 Difference]: With dead ends: 359 [2020-10-21 21:33:42,982 INFO L226 Difference]: Without dead ends: 355 [2020-10-21 21:33:42,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-21 21:33:42,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2020-10-21 21:33:42,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 335. [2020-10-21 21:33:42,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-10-21 21:33:42,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 751 transitions. [2020-10-21 21:33:42,994 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 751 transitions. Word has length 16 [2020-10-21 21:33:42,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:42,994 INFO L481 AbstractCegarLoop]: Abstraction has 335 states and 751 transitions. [2020-10-21 21:33:42,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-21 21:33:42,994 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 751 transitions. [2020-10-21 21:33:42,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-21 21:33:42,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:42,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 21:33:42,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 21:33:42,999 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:43,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:43,000 INFO L82 PathProgramCache]: Analyzing trace with hash 911227048, now seen corresponding path program 1 times [2020-10-21 21:33:43,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:43,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727928969] [2020-10-21 21:33:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:43,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727928969] [2020-10-21 21:33:43,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:43,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 21:33:43,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673792746] [2020-10-21 21:33:43,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 21:33:43,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:43,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 21:33:43,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 21:33:43,112 INFO L87 Difference]: Start difference. First operand 335 states and 751 transitions. Second operand 5 states. [2020-10-21 21:33:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:43,182 INFO L93 Difference]: Finished difference Result 459 states and 1021 transitions. [2020-10-21 21:33:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 21:33:43,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-21 21:33:43,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:43,186 INFO L225 Difference]: With dead ends: 459 [2020-10-21 21:33:43,186 INFO L226 Difference]: Without dead ends: 459 [2020-10-21 21:33:43,187 INFO L677 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 [2020-10-21 21:33:43,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-10-21 21:33:43,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 373. [2020-10-21 21:33:43,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2020-10-21 21:33:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 842 transitions. [2020-10-21 21:33:43,199 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 842 transitions. Word has length 17 [2020-10-21 21:33:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:43,199 INFO L481 AbstractCegarLoop]: Abstraction has 373 states and 842 transitions. [2020-10-21 21:33:43,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 21:33:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 842 transitions. [2020-10-21 21:33:43,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 21:33:43,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:43,201 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] [2020-10-21 21:33:43,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 21:33:43,201 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:43,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:43,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1804502606, now seen corresponding path program 1 times [2020-10-21 21:33:43,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:43,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610146197] [2020-10-21 21:33:43,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:43,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:43,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610146197] [2020-10-21 21:33:43,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:43,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 21:33:43,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594488049] [2020-10-21 21:33:43,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:43,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:43,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:43,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:43,815 INFO L87 Difference]: Start difference. First operand 373 states and 842 transitions. Second operand 9 states. [2020-10-21 21:33:44,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:44,402 INFO L93 Difference]: Finished difference Result 692 states and 1542 transitions. [2020-10-21 21:33:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 21:33:44,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-21 21:33:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:44,408 INFO L225 Difference]: With dead ends: 692 [2020-10-21 21:33:44,408 INFO L226 Difference]: Without dead ends: 692 [2020-10-21 21:33:44,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-21 21:33:44,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2020-10-21 21:33:44,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 495. [2020-10-21 21:33:44,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-10-21 21:33:44,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 1143 transitions. [2020-10-21 21:33:44,455 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 1143 transitions. Word has length 21 [2020-10-21 21:33:44,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:44,456 INFO L481 AbstractCegarLoop]: Abstraction has 495 states and 1143 transitions. [2020-10-21 21:33:44,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:44,456 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 1143 transitions. [2020-10-21 21:33:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-21 21:33:44,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:44,458 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] [2020-10-21 21:33:44,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 21:33:44,458 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:44,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:44,460 INFO L82 PathProgramCache]: Analyzing trace with hash 2021627422, now seen corresponding path program 2 times [2020-10-21 21:33:44,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:44,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709380316] [2020-10-21 21:33:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:44,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:44,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709380316] [2020-10-21 21:33:44,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 21:33:44,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-21 21:33:44,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387565967] [2020-10-21 21:33:44,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:44,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:44,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:44,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:44,741 INFO L87 Difference]: Start difference. First operand 495 states and 1143 transitions. Second operand 9 states. [2020-10-21 21:33:45,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:45,094 INFO L93 Difference]: Finished difference Result 807 states and 1820 transitions. [2020-10-21 21:33:45,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 21:33:45,095 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-10-21 21:33:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:45,101 INFO L225 Difference]: With dead ends: 807 [2020-10-21 21:33:45,102 INFO L226 Difference]: Without dead ends: 807 [2020-10-21 21:33:45,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-21 21:33:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2020-10-21 21:33:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 481. [2020-10-21 21:33:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-21 21:33:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1106 transitions. [2020-10-21 21:33:45,123 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1106 transitions. Word has length 21 [2020-10-21 21:33:45,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:45,123 INFO L481 AbstractCegarLoop]: Abstraction has 481 states and 1106 transitions. [2020-10-21 21:33:45,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1106 transitions. [2020-10-21 21:33:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-21 21:33:45,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:45,125 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-21 21:33:45,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 21:33:45,125 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:45,126 INFO L82 PathProgramCache]: Analyzing trace with hash -929320900, now seen corresponding path program 2 times [2020-10-21 21:33:45,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:45,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678251410] [2020-10-21 21:33:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:45,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678251410] [2020-10-21 21:33:45,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287806448] [2020-10-21 21:33:45,199 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 [2020-10-21 21:33:45,291 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-21 21:33:45,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-21 21:33:45,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 21:33:45,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:33:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:45,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-21 21:33:45,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2020-10-21 21:33:45,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815809737] [2020-10-21 21:33:45,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-21 21:33:45,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:45,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-21 21:33:45,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-21 21:33:45,331 INFO L87 Difference]: Start difference. First operand 481 states and 1106 transitions. Second operand 9 states. [2020-10-21 21:33:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:45,437 INFO L93 Difference]: Finished difference Result 722 states and 1617 transitions. [2020-10-21 21:33:45,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:33:45,438 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-10-21 21:33:45,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:45,443 INFO L225 Difference]: With dead ends: 722 [2020-10-21 21:33:45,444 INFO L226 Difference]: Without dead ends: 722 [2020-10-21 21:33:45,444 INFO L677 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 [2020-10-21 21:33:45,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-10-21 21:33:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 571. [2020-10-21 21:33:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-10-21 21:33:45,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 1305 transitions. [2020-10-21 21:33:45,468 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 1305 transitions. Word has length 22 [2020-10-21 21:33:45,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:45,468 INFO L481 AbstractCegarLoop]: Abstraction has 571 states and 1305 transitions. [2020-10-21 21:33:45,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-21 21:33:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 1305 transitions. [2020-10-21 21:33:45,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-21 21:33:45,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:45,470 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] [2020-10-21 21:33:45,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-21 21:33:45,685 INFO L429 AbstractCegarLoop]: === Iteration 10 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:45,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:45,685 INFO L82 PathProgramCache]: Analyzing trace with hash -2124766916, now seen corresponding path program 1 times [2020-10-21 21:33:45,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:45,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223595730] [2020-10-21 21:33:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:45,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 21:33:45,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223595730] [2020-10-21 21:33:45,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178752350] [2020-10-21 21:33:45,797 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 [2020-10-21 21:33:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 21:33:45,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-21 21:33:45,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-21 21:33:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-21 21:33:45,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-21 21:33:45,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2020-10-21 21:33:45,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798661942] [2020-10-21 21:33:45,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 21:33:45,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 21:33:45,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 21:33:45,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-21 21:33:45,943 INFO L87 Difference]: Start difference. First operand 571 states and 1305 transitions. Second operand 6 states. [2020-10-21 21:33:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 21:33:46,045 INFO L93 Difference]: Finished difference Result 786 states and 1758 transitions. [2020-10-21 21:33:46,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 21:33:46,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-21 21:33:46,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 21:33:46,052 INFO L225 Difference]: With dead ends: 786 [2020-10-21 21:33:46,052 INFO L226 Difference]: Without dead ends: 786 [2020-10-21 21:33:46,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-10-21 21:33:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2020-10-21 21:33:46,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 597. [2020-10-21 21:33:46,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-21 21:33:46,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 1376 transitions. [2020-10-21 21:33:46,108 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 1376 transitions. Word has length 24 [2020-10-21 21:33:46,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 21:33:46,108 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 1376 transitions. [2020-10-21 21:33:46,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 21:33:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 1376 transitions. [2020-10-21 21:33:46,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-21 21:33:46,110 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 21:33:46,110 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] [2020-10-21 21:33:46,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-10-21 21:33:46,325 INFO L429 AbstractCegarLoop]: === Iteration 11 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 21:33:46,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 21:33:46,325 INFO L82 PathProgramCache]: Analyzing trace with hash -2124840144, now seen corresponding path program 1 times [2020-10-21 21:33:46,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 21:33:46,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208825584] [2020-10-21 21:33:46,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 21:33:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:33:46,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:33:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-21 21:33:46,504 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-21 21:33:46,557 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-21 21:33:46,558 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-21 21:33:46,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 21:33:46,559 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 21:33:46,560 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-21 21:33:46,570 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [623] [623] L15-->L950: Formula: (and (not (= t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1201742275 0)) (let ((.cse1 (mod t1Thread1of1ForFork0_~tmp~0_In1201742275 4294967296))) (let ((.cse0 (<= .cse1 2147483647))) (or (and (not .cse0) (= (+ .cse1 (- 4294967296)) |t1Thread1of1ForFork0_push_#in~x_Out1201742275|)) (and .cse0 (= .cse1 |t1Thread1of1ForFork0_push_#in~x_Out1201742275|))))) (= |t1Thread1of1ForFork0_push_#in~stack.offset_Out1201742275| |~#arr~0.offset_In1201742275|) (= |t1Thread1of1ForFork0_push_#in~stack.base_Out1201742275| |~#arr~0.base_In1201742275|)) InVars {~#arr~0.offset=|~#arr~0.offset_In1201742275|, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1201742275, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1201742275, ~#arr~0.base=|~#arr~0.base_In1201742275|} OutVars{~#arr~0.offset=|~#arr~0.offset_In1201742275|, t1Thread1of1ForFork0_push_#in~x=|t1Thread1of1ForFork0_push_#in~x_Out1201742275|, t1Thread1of1ForFork0_push_#t~nondet36=|t1Thread1of1ForFork0_push_#t~nondet36_Out1201742275|, t1Thread1of1ForFork0_push_~stack.offset=t1Thread1of1ForFork0_push_~stack.offset_Out1201742275, t1Thread1of1ForFork0_push_#res=|t1Thread1of1ForFork0_push_#res_Out1201742275|, t1Thread1of1ForFork0_push_#t~ret38=|t1Thread1of1ForFork0_push_#t~ret38_Out1201742275|, t1Thread1of1ForFork0_push_~stack.base=t1Thread1of1ForFork0_push_~stack.base_Out1201742275, t1Thread1of1ForFork0_assume_abort_if_not_~cond=t1Thread1of1ForFork0_assume_abort_if_not_~cond_In1201742275, t1Thread1of1ForFork0_push_#in~stack.base=|t1Thread1of1ForFork0_push_#in~stack.base_Out1201742275|, t1Thread1of1ForFork0_~tmp~0=t1Thread1of1ForFork0_~tmp~0_In1201742275, t1Thread1of1ForFork0_push_~x=t1Thread1of1ForFork0_push_~x_Out1201742275, t1Thread1of1ForFork0_push_#in~stack.offset=|t1Thread1of1ForFork0_push_#in~stack.offset_Out1201742275|, ~#arr~0.base=|~#arr~0.base_In1201742275|} AuxVars[] AssignedVars[t1Thread1of1ForFork0_push_#in~x, t1Thread1of1ForFork0_push_~stack.base, t1Thread1of1ForFork0_push_#in~stack.base, t1Thread1of1ForFork0_push_~x, t1Thread1of1ForFork0_push_#t~nondet36, t1Thread1of1ForFork0_push_~stack.offset, t1Thread1of1ForFork0_push_#res, t1Thread1of1ForFork0_push_#in~stack.offset, t1Thread1of1ForFork0_push_#t~ret38] because there is no mapped edge [2020-10-21 21:33:46,581 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [643] [643] L1002-3-->L997-6: Formula: (and (= (+ t2Thread1of1ForFork1_~i~1_In-240964159 1) t2Thread1of1ForFork1_~i~1_Out-240964159) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-240964159| |t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-240964159|) (<= |t2Thread1of1ForFork1_#t~ret50_In-240964159| 2147483647) (<= 0 (+ |t2Thread1of1ForFork1_#t~ret50_In-240964159| 2147483648)) (= (store |#pthreadsMutex_In-240964159| |~#m~0.base_In-240964159| (store (select |#pthreadsMutex_In-240964159| |~#m~0.base_In-240964159|) |~#m~0.offset_In-240964159| 0)) |#pthreadsMutex_Out-240964159|) (= |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-240964159| |t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-240964159|) (not (= (- 2) |t2Thread1of1ForFork1_#t~ret50_In-240964159|))) InVars {#pthreadsMutex=|#pthreadsMutex_In-240964159|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_In-240964159|, ~#m~0.base=|~#m~0.base_In-240964159|, ~#m~0.offset=|~#m~0.offset_In-240964159|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_In-240964159|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_In-240964159, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_In-240964159|} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-240964159|, t2Thread1of1ForFork1_reach_error_#t~nondet2.base=|t2Thread1of1ForFork1_reach_error_#t~nondet2.base_Out-240964159|, ~#m~0.base=|~#m~0.base_In-240964159|, ~#m~0.offset=|~#m~0.offset_In-240964159|, t2Thread1of1ForFork1_#t~post48=|t2Thread1of1ForFork1_#t~post48_Out-240964159|, t2Thread1of1ForFork1_#t~ret50=|t2Thread1of1ForFork1_#t~ret50_Out-240964159|, t2Thread1of1ForFork1_~i~1=t2Thread1of1ForFork1_~i~1_Out-240964159, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out-240964159|} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork1_reach_error_#t~nondet2.base, t2Thread1of1ForFork1_#t~post48, t2Thread1of1ForFork1_#t~ret50, t2Thread1of1ForFork1_~i~1, t2Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-10-21 21:33:46,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 09:33:46 BasicIcfg [2020-10-21 21:33:46,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 21:33:46,645 INFO L168 Benchmark]: Toolchain (without parser) took 14354.41 ms. Allocated memory was 139.5 MB in the beginning and 346.6 MB in the end (delta: 207.1 MB). Free memory was 98.9 MB in the beginning and 280.4 MB in the end (delta: -181.5 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,646 INFO L168 Benchmark]: CDTParser took 2.56 ms. Allocated memory is still 139.5 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.20 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 97.8 MB in the beginning and 133.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.45 ms. Allocated memory is still 203.9 MB. Free memory was 133.2 MB in the beginning and 130.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,648 INFO L168 Benchmark]: Boogie Preprocessor took 98.22 ms. Allocated memory is still 203.9 MB. Free memory was 130.5 MB in the beginning and 128.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,649 INFO L168 Benchmark]: RCFGBuilder took 931.05 ms. Allocated memory is still 203.9 MB. Free memory was 128.4 MB in the beginning and 93.2 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. [2020-10-21 21:33:46,650 INFO L168 Benchmark]: TraceAbstraction took 12236.52 ms. Allocated memory was 203.9 MB in the beginning and 346.6 MB in the end (delta: 142.6 MB). Free memory was 92.5 MB in the beginning and 280.4 MB in the end (delta: -187.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 21:33:46,653 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.56 ms. Allocated memory is still 139.5 MB. Free memory was 119.1 MB in the beginning and 118.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 966.20 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 97.8 MB in the beginning and 133.2 MB in the end (delta: -35.4 MB). Peak memory consumption was 34.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 108.45 ms. Allocated memory is still 203.9 MB. Free memory was 133.2 MB in the beginning and 130.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.22 ms. Allocated memory is still 203.9 MB. Free memory was 130.5 MB in the beginning and 128.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 931.05 ms. Allocated memory is still 203.9 MB. Free memory was 128.4 MB in the beginning and 93.2 MB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12236.52 ms. Allocated memory was 203.9 MB in the beginning and 346.6 MB in the end (delta: 142.6 MB). Free memory was 92.5 MB in the beginning and 280.4 MB in the end (delta: -187.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5603 VarBasedMoverChecksPositive, 123 VarBasedMoverChecksNegative, 54 SemBasedMoverChecksPositive, 69 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 334 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.6s, 152 PlacesBefore, 40 PlacesAfterwards, 159 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 89 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 28 ConcurrentYvCompositions, 6 ChoiceCompositions, 153 TotalNumberOfCompositions, 12551 MoverChecksTotal - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L927] 0 static int top=0; [L928] 0 static unsigned int arr[(400)]; [L929] 0 pthread_mutex_t m; [L930] 0 _Bool flag=(0); [L1011] 0 pthread_t id1, id2; [L1013] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L1014] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L980] 1 int i; [L981] 1 unsigned int tmp; [L982] 1 i=0 VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L982] COND TRUE 1 i<(400) [L985] 1 tmp = __VERIFIER_nondet_uint() [L952] COND FALSE 1 !(top==(400)) [L996] 2 int i; [L997] 2 i=0 VAL [arr={13:0}, flag=0, m={6:0}, top=0] [L944] 1 return top; [L959] 1 stack[get_top()] = x [L936] 1 top++ [L962] 1 return 0; [L987] COND FALSE 1 !(push(arr,tmp)==(-1)) [L989] 1 flag=(1) VAL [arr={13:0}, flag=1, m={6:0}, top=1] [L982] 1 i++ VAL [arr={13:0}, flag=1, m={6:0}, top=1] [L997] COND TRUE 2 i<(400) [L1000] COND TRUE 2 \read(flag) [L944] 2 return top; [L966] COND FALSE 2 !(get_top()==0) [L940] 2 top-- VAL [arr={13:0}, flag=1, m={6:0}, top=0] [L944] 2 return top; [L974] EXPR 2 stack[get_top()] [L974] 2 return stack[get_top()]; [L997] COND TRUE 2 i<(400) [L1000] COND TRUE 2 \read(flag) [L944] 2 return top; [L966] COND TRUE 2 get_top()==0 [L969] 2 return (-2); [L1002] COND TRUE 2 !(pop(arr)!=(-2)) [L12] COND FALSE 2 !(0) [L12] 2 __assert_fail ("0", "stack_longer-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={13:0}, flag=1, m={6:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 146 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 452 SDtfs, 524 SDslu, 953 SDs, 0 SdLazy, 471 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=668occurred 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 1202 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 41774 SizeOfPredicates, 8 NumberOfNonLiveVariables, 572 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...