/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 16:41:49,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 16:41:49,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 16:41:49,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 16:41:49,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 16:41:49,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 16:41:49,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 16:41:49,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 16:41:49,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 16:41:49,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 16:41:49,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 16:41:49,307 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 16:41:49,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 16:41:49,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 16:41:49,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 16:41:49,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 16:41:49,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 16:41:49,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 16:41:49,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 16:41:49,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 16:41:49,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 16:41:49,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 16:41:49,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 16:41:49,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 16:41:49,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 16:41:49,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 16:41:49,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 16:41:49,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 16:41:49,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 16:41:49,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 16:41:49,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 16:41:49,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 16:41:49,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 16:41:49,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 16:41:49,329 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 16:41:49,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 16:41:49,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 16:41:49,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 16:41:49,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 16:41:49,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 16:41:49,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 16:41:49,333 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 [2020-10-15 16:41:49,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 16:41:49,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 16:41:49,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 16:41:49,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 16:41:49,382 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 16:41:49,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 16:41:49,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 16:41:49,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 16:41:49,384 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 16:41:49,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 16:41:49,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 16:41:49,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 16:41:49,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 16:41:49,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 16:41:49,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 16:41:49,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 16:41:49,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:41:49,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 16:41:49,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 16:41:49,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 16:41:49,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 16:41:49,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 16:41:49,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 16:41:49,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 16:41:49,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 16:41:49,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 16:41:49,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 16:41:49,725 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 16:41:49,726 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 16:41:49,727 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 16:41:49,728 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-15 16:41:49,798 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7a9a2ba/dabf630820764ec4bcd4e655d07fff37/FLAGff07cff70 [2020-10-15 16:41:50,335 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 16:41:50,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-15 16:41:50,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7a9a2ba/dabf630820764ec4bcd4e655d07fff37/FLAGff07cff70 [2020-10-15 16:41:50,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe7a9a2ba/dabf630820764ec4bcd4e655d07fff37 [2020-10-15 16:41:50,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 16:41:50,679 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 16:41:50,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 16:41:50,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 16:41:50,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 16:41:50,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:50" (1/1) ... [2020-10-15 16:41:50,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ce3e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:50, skipping insertion in model container [2020-10-15 16:41:50,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:41:50" (1/1) ... [2020-10-15 16:41:50,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 16:41:50,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 16:41:51,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:41:51,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 16:41:51,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 16:41:51,321 INFO L208 MainTranslator]: Completed translation [2020-10-15 16:41:51,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51 WrapperNode [2020-10-15 16:41:51,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 16:41:51,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 16:41:51,323 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 16:41:51,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 16:41:51,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 16:41:51,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 16:41:51,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 16:41:51,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 16:41:51,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... [2020-10-15 16:41:51,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 16:41:51,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 16:41:51,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 16:41:51,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 16:41:51,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 16:41:51,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 16:41:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-15 16:41:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-15 16:41:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-15 16:41:51,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-15 16:41:51,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 16:41:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-15 16:41:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 16:41:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 16:41:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 16:41:51,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 16:41:51,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 16:41:51,477 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 16:41:51,917 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 16:41:51,918 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-15 16:41:51,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:51 BoogieIcfgContainer [2020-10-15 16:41:51,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 16:41:51,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 16:41:51,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 16:41:51,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 16:41:51,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:41:50" (1/3) ... [2020-10-15 16:41:51,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b0dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:51, skipping insertion in model container [2020-10-15 16:41:51,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:41:51" (2/3) ... [2020-10-15 16:41:51,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b0dd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:41:51, skipping insertion in model container [2020-10-15 16:41:51,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:41:51" (3/3) ... [2020-10-15 16:41:51,928 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-10-15 16:41:51,940 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 16:41:51,940 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 16:41:51,948 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 16:41:51,950 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 16:41:51,977 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,978 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,978 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,982 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,983 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,983 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,983 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,984 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,985 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,989 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,990 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,990 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:51,991 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,001 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,001 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,001 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,002 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 16:41:52,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-15 16:41:52,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 16:41:52,041 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 16:41:52,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 16:41:52,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 16:41:52,041 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 16:41:52,041 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 16:41:52,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 16:41:52,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 16:41:52,053 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 16:41:52,055 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-15 16:41:52,058 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-15 16:41:52,059 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-10-15 16:41:52,108 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-15 16:41:52,108 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-15 16:41:52,112 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 78 events. 2/78 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 48 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2020-10-15 16:41:52,115 INFO L117 LiptonReduction]: Number of co-enabled transitions 680 [2020-10-15 16:41:53,636 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-15 16:41:54,113 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-15 16:41:54,271 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-15 16:41:54,287 INFO L132 LiptonReduction]: Checked pairs total: 2757 [2020-10-15 16:41:54,287 INFO L134 LiptonReduction]: Total number of compositions: 53 [2020-10-15 16:41:54,294 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-10-15 16:41:54,314 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-15 16:41:54,316 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-15 16:41:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 16:41:54,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:54,329 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:54,329 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:54,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:54,335 INFO L82 PathProgramCache]: Analyzing trace with hash 535203952, now seen corresponding path program 1 times [2020-10-15 16:41:54,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:54,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070719208] [2020-10-15 16:41:54,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:54,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070719208] [2020-10-15 16:41:54,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:54,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 16:41:54,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314741368] [2020-10-15 16:41:54,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 16:41:54,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:54,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 16:41:54,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:54,627 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-10-15 16:41:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:54,688 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2020-10-15 16:41:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 16:41:54,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-15 16:41:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:54,703 INFO L225 Difference]: With dead ends: 150 [2020-10-15 16:41:54,703 INFO L226 Difference]: Without dead ends: 149 [2020-10-15 16:41:54,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 16:41:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-15 16:41:54,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-15 16:41:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-15 16:41:54,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2020-10-15 16:41:54,759 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2020-10-15 16:41:54,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:54,759 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2020-10-15 16:41:54,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 16:41:54,759 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2020-10-15 16:41:54,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 16:41:54,762 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:54,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:54,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 16:41:54,763 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:54,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:54,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1346228208, now seen corresponding path program 2 times [2020-10-15 16:41:54,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:54,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386983866] [2020-10-15 16:41:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:54,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386983866] [2020-10-15 16:41:54,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:54,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 16:41:54,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213355832] [2020-10-15 16:41:54,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 16:41:54,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:54,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 16:41:54,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 16:41:54,902 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 5 states. [2020-10-15 16:41:54,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:54,940 INFO L93 Difference]: Finished difference Result 149 states and 252 transitions. [2020-10-15 16:41:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 16:41:54,941 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-15 16:41:54,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:54,943 INFO L225 Difference]: With dead ends: 149 [2020-10-15 16:41:54,943 INFO L226 Difference]: Without dead ends: 122 [2020-10-15 16:41:54,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:41:54,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-15 16:41:54,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-15 16:41:54,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-15 16:41:54,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2020-10-15 16:41:54,955 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2020-10-15 16:41:54,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:54,955 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2020-10-15 16:41:54,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 16:41:54,956 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2020-10-15 16:41:54,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 16:41:54,957 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:54,957 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:54,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 16:41:54,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:54,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:54,962 INFO L82 PathProgramCache]: Analyzing trace with hash 352163958, now seen corresponding path program 1 times [2020-10-15 16:41:54,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:54,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457619120] [2020-10-15 16:41:54,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:55,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:55,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457619120] [2020-10-15 16:41:55,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:55,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 16:41:55,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514473758] [2020-10-15 16:41:55,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:41:55,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:55,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:41:55,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:41:55,122 INFO L87 Difference]: Start difference. First operand 122 states and 201 transitions. Second operand 6 states. [2020-10-15 16:41:55,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:55,170 INFO L93 Difference]: Finished difference Result 164 states and 266 transitions. [2020-10-15 16:41:55,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:41:55,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-15 16:41:55,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:55,171 INFO L225 Difference]: With dead ends: 164 [2020-10-15 16:41:55,172 INFO L226 Difference]: Without dead ends: 98 [2020-10-15 16:41:55,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:41:55,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-15 16:41:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-15 16:41:55,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-15 16:41:55,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 161 transitions. [2020-10-15 16:41:55,181 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 161 transitions. Word has length 25 [2020-10-15 16:41:55,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:55,181 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 161 transitions. [2020-10-15 16:41:55,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:41:55,182 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 161 transitions. [2020-10-15 16:41:55,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 16:41:55,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 16:41:55,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 16:41:55,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 16:41:55,183 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 16:41:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 16:41:55,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1213192784, now seen corresponding path program 2 times [2020-10-15 16:41:55,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 16:41:55,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751396771] [2020-10-15 16:41:55,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 16:41:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 16:41:55,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 16:41:55,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751396771] [2020-10-15 16:41:55,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 16:41:55,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-15 16:41:55,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687751362] [2020-10-15 16:41:55,326 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 16:41:55,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 16:41:55,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 16:41:55,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-15 16:41:55,327 INFO L87 Difference]: Start difference. First operand 98 states and 161 transitions. Second operand 6 states. [2020-10-15 16:41:55,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 16:41:55,366 INFO L93 Difference]: Finished difference Result 97 states and 160 transitions. [2020-10-15 16:41:55,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 16:41:55,367 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-15 16:41:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 16:41:55,368 INFO L225 Difference]: With dead ends: 97 [2020-10-15 16:41:55,368 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 16:41:55,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-15 16:41:55,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 16:41:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 16:41:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 16:41:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 16:41:55,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-15 16:41:55,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 16:41:55,369 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 16:41:55,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 16:41:55,370 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 16:41:55,370 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 16:41:55,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 16:41:55,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:41:55 BasicIcfg [2020-10-15 16:41:55,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 16:41:55,376 INFO L168 Benchmark]: Toolchain (without parser) took 4697.52 ms. Allocated memory was 252.2 MB in the beginning and 372.2 MB in the end (delta: 120.1 MB). Free memory was 206.7 MB in the beginning and 223.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 103.7 MB. Max. memory is 14.2 GB. [2020-10-15 16:41:55,377 INFO L168 Benchmark]: CDTParser took 1.52 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:41:55,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 641.24 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 206.7 MB in the beginning and 272.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. [2020-10-15 16:41:55,380 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.43 ms. Allocated memory is still 317.2 MB. Free memory was 272.8 MB in the beginning and 270.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 16:41:55,382 INFO L168 Benchmark]: Boogie Preprocessor took 25.96 ms. Allocated memory is still 317.2 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 16:41:55,387 INFO L168 Benchmark]: RCFGBuilder took 519.77 ms. Allocated memory is still 317.2 MB. Free memory was 267.8 MB in the beginning and 243.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-15 16:41:55,388 INFO L168 Benchmark]: TraceAbstraction took 3453.28 ms. Allocated memory was 317.2 MB in the beginning and 372.2 MB in the end (delta: 55.1 MB). Free memory was 243.4 MB in the beginning and 223.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 14.2 GB. [2020-10-15 16:41:55,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.52 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 641.24 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 206.7 MB in the beginning and 272.8 MB in the end (delta: -66.1 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.43 ms. Allocated memory is still 317.2 MB. Free memory was 272.8 MB in the beginning and 270.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.96 ms. Allocated memory is still 317.2 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 519.77 ms. Allocated memory is still 317.2 MB. Free memory was 267.8 MB in the beginning and 243.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3453.28 ms. Allocated memory was 317.2 MB in the beginning and 372.2 MB in the end (delta: 55.1 MB). Free memory was 243.4 MB in the beginning and 223.1 MB in the end (delta: 20.3 MB). Peak memory consumption was 75.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 450 VarBasedMoverChecksPositive, 46 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 34 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 178 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.2s, 82 PlacesBefore, 35 PlacesAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 2757 MoverChecksTotal - PositiveResult [Line: 708]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 148 SDtfs, 80 SDslu, 267 SDs, 0 SdLazy, 60 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 12048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...