/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread/stateful01-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:47:05,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:47:05,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:47:05,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:47:05,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:47:05,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:47:05,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:47:05,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:47:05,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:47:05,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:47:05,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:47:05,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:47:05,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:47:05,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:47:05,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:47:05,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:47:05,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:47:05,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:47:05,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:47:05,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:47:05,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:47:05,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:47:05,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:47:05,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:47:05,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:47:05,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:47:05,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:47:05,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:47:05,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:47:05,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:47:05,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:47:05,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:47:05,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:47:05,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:47:05,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:47:05,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:47:05,826 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 00:47:05,841 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:47:05,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:47:05,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:47:05,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:47:05,843 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:47:05,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:47:05,843 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:47:05,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:47:05,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:47:05,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:47:05,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:47:05,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:47:05,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:47:05,845 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:47:05,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:47:05,845 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:47:05,845 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:47:05,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:47:05,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:47:05,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:47:05,846 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:47:05,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:47:05,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:47:05,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:47:05,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:47:05,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:47:05,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:47:05,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:47:05,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:47:06,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:47:06,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:47:06,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:47:06,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:47:06,212 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:47:06,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-2.i [2019-12-27 00:47:06,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc1634a4/6378f31a96fa4190bf2d1260657e895f/FLAGc9be896ba [2019-12-27 00:47:06,868 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:47:06,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-2.i [2019-12-27 00:47:06,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc1634a4/6378f31a96fa4190bf2d1260657e895f/FLAGc9be896ba [2019-12-27 00:47:07,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc1634a4/6378f31a96fa4190bf2d1260657e895f [2019-12-27 00:47:07,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:47:07,202 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:47:07,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:47:07,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:47:07,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:47:07,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:07,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac2450c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07, skipping insertion in model container [2019-12-27 00:47:07,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:07,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:47:07,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:47:07,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:47:07,799 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:47:07,855 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:47:07,936 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:47:07,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07 WrapperNode [2019-12-27 00:47:07,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:47:07,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:47:07,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:47:07,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:47:07,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:07,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:07,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:47:07,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:47:07,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:47:07,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:47:07,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:07,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (1/1) ... [2019-12-27 00:47:08,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:47:08,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:47:08,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:47:08,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:47:08,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (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 [2019-12-27 00:47:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 00:47:08,093 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-27 00:47:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-27 00:47:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-12-27 00:47:08,094 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-12-27 00:47:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:47:08,094 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 00:47:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:47:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:47:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 00:47:08,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:47:08,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:47:08,097 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:47:08,560 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:47:08,561 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-27 00:47:08,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:47:08 BoogieIcfgContainer [2019-12-27 00:47:08,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:47:08,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:47:08,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:47:08,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:47:08,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:47:07" (1/3) ... [2019-12-27 00:47:08,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214be3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:47:08, skipping insertion in model container [2019-12-27 00:47:08,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:07" (2/3) ... [2019-12-27 00:47:08,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@214be3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:47:08, skipping insertion in model container [2019-12-27 00:47:08,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:47:08" (3/3) ... [2019-12-27 00:47:08,576 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2019-12-27 00:47:08,584 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:47:08,585 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:47:08,592 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:47:08,594 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:47:08,624 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,624 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,625 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,625 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,625 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,626 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,626 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,626 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,626 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,627 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,627 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,628 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,628 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,628 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,628 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,629 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,629 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,629 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,630 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,630 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,630 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,631 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,631 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,631 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,632 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,632 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,636 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,637 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,637 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,637 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,638 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,638 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,638 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,638 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,644 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,644 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,644 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,645 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,645 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,645 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:47:08,671 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 00:47:08,693 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:47:08,693 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:47:08,693 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:47:08,693 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:47:08,693 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:47:08,694 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:47:08,694 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:47:08,694 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:47:08,709 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions [2019-12-27 00:47:08,712 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions [2019-12-27 00:47:08,766 INFO L132 PetriNetUnfolder]: 2/78 cut-off events. [2019-12-27 00:47:08,766 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 00:47:08,772 INFO L76 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. 0/76 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2019-12-27 00:47:08,776 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions [2019-12-27 00:47:08,804 INFO L132 PetriNetUnfolder]: 2/78 cut-off events. [2019-12-27 00:47:08,804 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 00:47:08,806 INFO L76 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. 0/76 useless extension candidates. Maximal degree in co-relation 46. Up to 3 conditions per place. [2019-12-27 00:47:08,808 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 680 [2019-12-27 00:47:08,809 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:47:10,512 WARN L192 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-12-27 00:47:11,090 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-12-27 00:47:11,279 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-12-27 00:47:11,289 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1930 [2019-12-27 00:47:11,289 INFO L214 etLargeBlockEncoding]: Total number of compositions: 51 [2019-12-27 00:47:11,296 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions [2019-12-27 00:47:11,315 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2019-12-27 00:47:11,317 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-27 00:47:11,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 00:47:11,331 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:47:11,333 INFO L411 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] [2019-12-27 00:47:11,334 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:47:11,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:47:11,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1542005391, now seen corresponding path program 1 times [2019-12-27 00:47:11,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:47:11,353 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922945341] [2019-12-27 00:47:11,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:47:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:47:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:47:11,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922945341] [2019-12-27 00:47:11,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:47:11,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:47:11,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498358860] [2019-12-27 00:47:11,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:47:11,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:47:11,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:47:11,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:47:11,617 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 3 states. [2019-12-27 00:47:11,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:47:11,683 INFO L93 Difference]: Finished difference Result 150 states and 254 transitions. [2019-12-27 00:47:11,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:47:11,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-27 00:47:11,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:47:11,698 INFO L225 Difference]: With dead ends: 150 [2019-12-27 00:47:11,698 INFO L226 Difference]: Without dead ends: 149 [2019-12-27 00:47:11,700 INFO L631 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 [2019-12-27 00:47:11,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-12-27 00:47:11,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-12-27 00:47:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-12-27 00:47:11,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 253 transitions. [2019-12-27 00:47:11,764 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 253 transitions. Word has length 25 [2019-12-27 00:47:11,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:47:11,764 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 253 transitions. [2019-12-27 00:47:11,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:47:11,765 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2019-12-27 00:47:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 00:47:11,767 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:47:11,767 INFO L411 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] [2019-12-27 00:47:11,767 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:47:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:47:11,768 INFO L82 PathProgramCache]: Analyzing trace with hash -730981135, now seen corresponding path program 2 times [2019-12-27 00:47:11,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:47:11,769 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315046297] [2019-12-27 00:47:11,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:47:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:47:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:47:11,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315046297] [2019-12-27 00:47:11,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:47:11,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 00:47:11,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895750613] [2019-12-27 00:47:11,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:47:11,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:47:11,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:47:11,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:47:11,876 INFO L87 Difference]: Start difference. First operand 149 states and 253 transitions. Second operand 5 states. [2019-12-27 00:47:11,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:47:11,920 INFO L93 Difference]: Finished difference Result 149 states and 252 transitions. [2019-12-27 00:47:11,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:47:11,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-27 00:47:11,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:47:11,922 INFO L225 Difference]: With dead ends: 149 [2019-12-27 00:47:11,922 INFO L226 Difference]: Without dead ends: 122 [2019-12-27 00:47:11,923 INFO L631 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 [2019-12-27 00:47:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-12-27 00:47:11,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-12-27 00:47:11,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-12-27 00:47:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 201 transitions. [2019-12-27 00:47:11,941 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 201 transitions. Word has length 25 [2019-12-27 00:47:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:47:11,944 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 201 transitions. [2019-12-27 00:47:11,945 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:47:11,945 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 201 transitions. [2019-12-27 00:47:11,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 00:47:11,948 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:47:11,948 INFO L411 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] [2019-12-27 00:47:11,948 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:47:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:47:11,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1725045385, now seen corresponding path program 1 times [2019-12-27 00:47:11,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:47:11,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830263401] [2019-12-27 00:47:11,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:47:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:47:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:47:12,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830263401] [2019-12-27 00:47:12,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:47:12,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:47:12,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489289387] [2019-12-27 00:47:12,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:47:12,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:47:12,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:47:12,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:47:12,087 INFO L87 Difference]: Start difference. First operand 122 states and 201 transitions. Second operand 6 states. [2019-12-27 00:47:12,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:47:12,140 INFO L93 Difference]: Finished difference Result 164 states and 266 transitions. [2019-12-27 00:47:12,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:47:12,140 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 00:47:12,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:47:12,142 INFO L225 Difference]: With dead ends: 164 [2019-12-27 00:47:12,142 INFO L226 Difference]: Without dead ends: 98 [2019-12-27 00:47:12,142 INFO L631 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 [2019-12-27 00:47:12,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-12-27 00:47:12,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2019-12-27 00:47:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-12-27 00:47:12,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 161 transitions. [2019-12-27 00:47:12,150 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 161 transitions. Word has length 25 [2019-12-27 00:47:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:47:12,150 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 161 transitions. [2019-12-27 00:47:12,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:47:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 161 transitions. [2019-12-27 00:47:12,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 00:47:12,152 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:47:12,152 INFO L411 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] [2019-12-27 00:47:12,152 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:47:12,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:47:12,152 INFO L82 PathProgramCache]: Analyzing trace with hash -864016559, now seen corresponding path program 2 times [2019-12-27 00:47:12,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:47:12,153 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162293461] [2019-12-27 00:47:12,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:47:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:47:12,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:47:12,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162293461] [2019-12-27 00:47:12,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:47:12,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:47:12,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438326999] [2019-12-27 00:47:12,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 00:47:12,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:47:12,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 00:47:12,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-27 00:47:12,287 INFO L87 Difference]: Start difference. First operand 98 states and 161 transitions. Second operand 6 states. [2019-12-27 00:47:12,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:47:12,325 INFO L93 Difference]: Finished difference Result 97 states and 160 transitions. [2019-12-27 00:47:12,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 00:47:12,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-27 00:47:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:47:12,328 INFO L225 Difference]: With dead ends: 97 [2019-12-27 00:47:12,328 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:47:12,328 INFO L631 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 [2019-12-27 00:47:12,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:47:12,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:47:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:47:12,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:47:12,329 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2019-12-27 00:47:12,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:47:12,330 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:47:12,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 00:47:12,330 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:47:12,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:47:12,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:47:12 BasicIcfg [2019-12-27 00:47:12,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:47:12,337 INFO L168 Benchmark]: Toolchain (without parser) took 5134.98 ms. Allocated memory was 143.7 MB in the beginning and 252.2 MB in the end (delta: 108.5 MB). Free memory was 100.1 MB in the beginning and 160.1 MB in the end (delta: -60.0 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,339 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.48 ms. Allocated memory was 143.7 MB in the beginning and 198.7 MB in the end (delta: 55.1 MB). Free memory was 99.7 MB in the beginning and 155.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.94 ms. Allocated memory is still 198.7 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,348 INFO L168 Benchmark]: Boogie Preprocessor took 42.99 ms. Allocated memory is still 198.7 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,349 INFO L168 Benchmark]: RCFGBuilder took 532.22 ms. Allocated memory is still 198.7 MB. Free memory was 151.9 MB in the beginning and 128.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,350 INFO L168 Benchmark]: TraceAbstraction took 3770.99 ms. Allocated memory was 198.7 MB in the beginning and 252.2 MB in the end (delta: 53.5 MB). Free memory was 127.4 MB in the beginning and 160.1 MB in the end (delta: -32.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 00:47:12,358 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.48 ms. Allocated memory was 143.7 MB in the beginning and 198.7 MB in the end (delta: 55.1 MB). Free memory was 99.7 MB in the beginning and 155.4 MB in the end (delta: -55.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.94 ms. Allocated memory is still 198.7 MB. Free memory was 155.4 MB in the beginning and 153.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.99 ms. Allocated memory is still 198.7 MB. Free memory was 153.3 MB in the beginning and 151.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 532.22 ms. Allocated memory is still 198.7 MB. Free memory was 151.9 MB in the beginning and 128.1 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3770.99 ms. Allocated memory was 198.7 MB in the beginning and 252.2 MB in the end (delta: 53.5 MB). Free memory was 127.4 MB in the beginning and 160.1 MB in the end (delta: -32.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 82 ProgramPointsBefore, 34 ProgramPointsAfterwards, 78 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 289 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 33 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1930 CheckedPairsTotal, 51 TotalNumberOfCompositions - 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. Result: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, 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, 0.3s 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...