/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/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 10:51:15,965 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 10:51:15,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 10:51:16,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 10:51:16,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 10:51:16,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 10:51:16,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 10:51:16,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 10:51:16,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 10:51:16,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 10:51:16,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 10:51:16,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 10:51:16,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 10:51:16,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 10:51:16,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 10:51:16,049 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 10:51:16,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 10:51:16,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 10:51:16,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 10:51:16,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 10:51:16,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 10:51:16,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 10:51:16,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 10:51:16,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 10:51:16,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 10:51:16,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 10:51:16,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 10:51:16,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 10:51:16,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 10:51:16,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 10:51:16,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 10:51:16,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 10:51:16,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 10:51:16,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 10:51:16,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 10:51:16,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 10:51:16,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 10:51:16,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 10:51:16,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 10:51:16,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 10:51:16,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 10:51:16,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-16 10:51:16,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 10:51:16,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 10:51:16,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 10:51:16,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 10:51:16,139 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 10:51:16,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 10:51:16,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 10:51:16,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 10:51:16,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 10:51:16,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 10:51:16,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 10:51:16,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 10:51:16,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 10:51:16,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 10:51:16,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 10:51:16,143 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 10:51:16,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 10:51:16,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 10:51:16,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 10:51:16,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 10:51:16,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 10:51:16,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 10:51:16,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 10:51:16,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-16 10:51:16,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 10:51:16,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 10:51:16,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 10:51:16,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 10:51:16,471 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 10:51:16,472 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 10:51:16,473 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-16 10:51:16,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/670106821/2619809db5994377b529dc7d70f361d1/FLAG9b7eb5131 [2020-10-16 10:51:17,053 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 10:51:17,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread/stateful01-2.i [2020-10-16 10:51:17,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/670106821/2619809db5994377b529dc7d70f361d1/FLAG9b7eb5131 [2020-10-16 10:51:17,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/670106821/2619809db5994377b529dc7d70f361d1 [2020-10-16 10:51:17,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 10:51:17,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 10:51:17,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 10:51:17,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 10:51:17,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 10:51:17,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:51:17" (1/1) ... [2020-10-16 10:51:17,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b883c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:17, skipping insertion in model container [2020-10-16 10:51:17,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:51:17" (1/1) ... [2020-10-16 10:51:17,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 10:51:17,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 10:51:17,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:51:17,972 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 10:51:18,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 10:51:18,156 INFO L208 MainTranslator]: Completed translation [2020-10-16 10:51:18,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18 WrapperNode [2020-10-16 10:51:18,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 10:51:18,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 10:51:18,159 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 10:51:18,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 10:51:18,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 10:51:18,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 10:51:18,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 10:51:18,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 10:51:18,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... [2020-10-16 10:51:18,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 10:51:18,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 10:51:18,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 10:51:18,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 10:51:18,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-16 10:51:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 10:51:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 10:51:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 10:51:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-16 10:51:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-16 10:51:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 10:51:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 10:51:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 10:51:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 10:51:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 10:51:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 10:51:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 10:51:18,350 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 10:51:18,775 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 10:51:18,775 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-16 10:51:18,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:51:18 BoogieIcfgContainer [2020-10-16 10:51:18,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 10:51:18,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 10:51:18,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 10:51:18,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 10:51:18,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:51:17" (1/3) ... [2020-10-16 10:51:18,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa9ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:51:18, skipping insertion in model container [2020-10-16 10:51:18,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:51:18" (2/3) ... [2020-10-16 10:51:18,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa9ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:51:18, skipping insertion in model container [2020-10-16 10:51:18,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:51:18" (3/3) ... [2020-10-16 10:51:18,787 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2020-10-16 10:51:18,800 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 10:51:18,800 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 10:51:18,809 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 10:51:18,810 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 10:51:18,841 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,842 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,842 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,843 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,843 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,843 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,844 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,844 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,844 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,845 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,846 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,847 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,848 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,848 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,849 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,850 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,855 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,855 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,856 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,856 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,856 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,856 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,857 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,857 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,865 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,865 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,866 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,866 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 10:51:18,878 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-16 10:51:18,894 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 10:51:18,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 10:51:18,918 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 10:51:18,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 10:51:18,918 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 10:51:18,919 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 10:51:18,919 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 10:51:18,919 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 10:51:18,919 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 10:51:18,936 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 10:51:18,939 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-16 10:51:18,942 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 178 flow [2020-10-16 10:51:18,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 178 flow [2020-10-16 10:51:18,997 INFO L129 PetriNetUnfolder]: 2/78 cut-off events. [2020-10-16 10:51:18,997 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 10:51:19,001 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. [2020-10-16 10:51:19,003 INFO L117 LiptonReduction]: Number of co-enabled transitions 680 [2020-10-16 10:51:20,571 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2020-10-16 10:51:21,052 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2020-10-16 10:51:21,235 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2020-10-16 10:51:21,253 INFO L132 LiptonReduction]: Checked pairs total: 2757 [2020-10-16 10:51:21,253 INFO L134 LiptonReduction]: Total number of compositions: 53 [2020-10-16 10:51:21,261 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-10-16 10:51:21,281 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-10-16 10:51:21,284 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-10-16 10:51:21,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 10:51:21,297 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:51:21,298 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] [2020-10-16 10:51:21,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:51:21,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:51:21,305 INFO L82 PathProgramCache]: Analyzing trace with hash 535203952, now seen corresponding path program 1 times [2020-10-16 10:51:21,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:51:21,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792333629] [2020-10-16 10:51:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:51:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:51:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:51:21,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792333629] [2020-10-16 10:51:21,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:51:21,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 10:51:21,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558750207] [2020-10-16 10:51:21,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 10:51:21,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:51:21,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 10:51:21,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 10:51:21,652 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2020-10-16 10:51:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:51:21,729 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2020-10-16 10:51:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 10:51:21,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-10-16 10:51:21,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:51:21,744 INFO L225 Difference]: With dead ends: 150 [2020-10-16 10:51:21,744 INFO L226 Difference]: Without dead ends: 149 [2020-10-16 10:51:21,746 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 [2020-10-16 10:51:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-16 10:51:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2020-10-16 10:51:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-16 10:51:21,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2020-10-16 10:51:21,799 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2020-10-16 10:51:21,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:51:21,800 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2020-10-16 10:51:21,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 10:51:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2020-10-16 10:51:21,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 10:51:21,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:51:21,803 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] [2020-10-16 10:51:21,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 10:51:21,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:51:21,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:51:21,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1346228208, now seen corresponding path program 2 times [2020-10-16 10:51:21,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:51:21,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205128702] [2020-10-16 10:51:21,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:51:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:51:21,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:51:21,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205128702] [2020-10-16 10:51:21,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:51:21,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 10:51:21,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332149062] [2020-10-16 10:51:21,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 10:51:21,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:51:21,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 10:51:21,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-16 10:51:21,917 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 5 states. [2020-10-16 10:51:21,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:51:21,966 INFO L93 Difference]: Finished difference Result 149 states and 252 transitions. [2020-10-16 10:51:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 10:51:21,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-16 10:51:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:51:21,968 INFO L225 Difference]: With dead ends: 149 [2020-10-16 10:51:21,968 INFO L226 Difference]: Without dead ends: 122 [2020-10-16 10:51:21,969 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 [2020-10-16 10:51:21,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-16 10:51:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-10-16 10:51:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-16 10:51:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2020-10-16 10:51:21,981 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2020-10-16 10:51:21,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:51:21,982 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2020-10-16 10:51:21,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 10:51:21,982 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2020-10-16 10:51:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 10:51:21,983 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:51:21,983 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] [2020-10-16 10:51:21,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 10:51:21,984 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:51:21,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:51:21,984 INFO L82 PathProgramCache]: Analyzing trace with hash 352163958, now seen corresponding path program 1 times [2020-10-16 10:51:21,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:51:21,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466172451] [2020-10-16 10:51:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:51:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:51:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:51:22,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466172451] [2020-10-16 10:51:22,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:51:22,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 10:51:22,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466821186] [2020-10-16 10:51:22,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:51:22,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:51:22,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:51:22,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:51:22,109 INFO L87 Difference]: Start difference. First operand 122 states and 201 transitions. Second operand 6 states. [2020-10-16 10:51:22,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:51:22,157 INFO L93 Difference]: Finished difference Result 164 states and 266 transitions. [2020-10-16 10:51:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:51:22,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-16 10:51:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:51:22,159 INFO L225 Difference]: With dead ends: 164 [2020-10-16 10:51:22,159 INFO L226 Difference]: Without dead ends: 98 [2020-10-16 10:51:22,159 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 [2020-10-16 10:51:22,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-16 10:51:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-16 10:51:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-16 10:51:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 161 transitions. [2020-10-16 10:51:22,167 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 161 transitions. Word has length 25 [2020-10-16 10:51:22,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:51:22,168 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 161 transitions. [2020-10-16 10:51:22,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:51:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 161 transitions. [2020-10-16 10:51:22,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-16 10:51:22,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 10:51:22,170 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] [2020-10-16 10:51:22,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 10:51:22,170 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 10:51:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 10:51:22,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1213192784, now seen corresponding path program 2 times [2020-10-16 10:51:22,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 10:51:22,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128668360] [2020-10-16 10:51:22,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 10:51:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 10:51:22,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 10:51:22,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128668360] [2020-10-16 10:51:22,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 10:51:22,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 10:51:22,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215781861] [2020-10-16 10:51:22,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 10:51:22,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 10:51:22,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 10:51:22,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-16 10:51:22,297 INFO L87 Difference]: Start difference. First operand 98 states and 161 transitions. Second operand 6 states. [2020-10-16 10:51:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 10:51:22,326 INFO L93 Difference]: Finished difference Result 97 states and 160 transitions. [2020-10-16 10:51:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 10:51:22,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-16 10:51:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 10:51:22,327 INFO L225 Difference]: With dead ends: 97 [2020-10-16 10:51:22,327 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 10:51:22,327 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 [2020-10-16 10:51:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 10:51:22,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 10:51:22,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 10:51:22,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 10:51:22,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2020-10-16 10:51:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 10:51:22,329 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 10:51:22,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 10:51:22,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 10:51:22,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 10:51:22,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 10:51:22,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 10:51:22 BasicIcfg [2020-10-16 10:51:22,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 10:51:22,335 INFO L168 Benchmark]: Toolchain (without parser) took 4985.63 ms. Allocated memory was 141.6 MB in the beginning and 245.9 MB in the end (delta: 104.3 MB). Free memory was 102.1 MB in the beginning and 131.5 MB in the end (delta: -29.4 MB). Peak memory consumption was 74.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,336 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,337 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.02 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 164.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.89 ms. Allocated memory is still 205.0 MB. Free memory was 164.7 MB in the beginning and 162.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,339 INFO L168 Benchmark]: Boogie Preprocessor took 25.42 ms. Allocated memory is still 205.0 MB. Free memory was 162.7 MB in the beginning and 160.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,340 INFO L168 Benchmark]: RCFGBuilder took 509.43 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 137.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,341 INFO L168 Benchmark]: TraceAbstraction took 3554.44 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 136.7 MB in the beginning and 131.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 GB. [2020-10-16 10:51:22,345 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.02 ms. Allocated memory was 141.6 MB in the beginning and 205.0 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 164.7 MB in the end (delta: -62.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 82.89 ms. Allocated memory is still 205.0 MB. Free memory was 164.7 MB in the beginning and 162.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.42 ms. Allocated memory is still 205.0 MB. Free memory was 162.7 MB in the beginning and 160.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 509.43 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 137.4 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3554.44 ms. Allocated memory was 205.0 MB in the beginning and 245.9 MB in the end (delta: 40.9 MB). Free memory was 136.7 MB in the beginning and 131.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 46.1 MB. Max. memory is 7.1 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: 2.3s, 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, 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...