/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 04:43:56,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 04:43:56,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 04:43:56,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 04:43:56,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 04:43:56,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 04:43:56,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 04:43:56,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 04:43:56,517 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 04:43:56,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 04:43:56,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 04:43:56,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 04:43:56,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 04:43:56,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 04:43:56,527 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 04:43:56,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 04:43:56,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 04:43:56,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 04:43:56,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 04:43:56,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 04:43:56,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 04:43:56,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 04:43:56,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 04:43:56,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 04:43:56,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 04:43:56,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 04:43:56,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 04:43:56,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 04:43:56,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 04:43:56,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 04:43:56,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 04:43:56,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 04:43:56,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 04:43:56,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 04:43:56,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 04:43:56,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 04:43:56,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 04:43:56,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 04:43:56,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 04:43:56,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 04:43:56,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 04:43:56,548 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-VariableLbe.epf [2019-12-27 04:43:56,561 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 04:43:56,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 04:43:56,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 04:43:56,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 04:43:56,563 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 04:43:56,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 04:43:56,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 04:43:56,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 04:43:56,565 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 04:43:56,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 04:43:56,565 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 04:43:56,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 04:43:56,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 04:43:56,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 04:43:56,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 04:43:56,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 04:43:56,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 04:43:56,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 04:43:56,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 04:43:56,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 04:43:56,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 04:43:56,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 04:43:56,568 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 04:43:56,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 04:43:56,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 04:43:56,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 04:43:56,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 04:43:56,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 04:43:56,860 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 04:43:56,860 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 04:43:56,861 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2019-12-27 04:43:56,938 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d0ee032/188be466af5d4e65b3a72c9d28cae0d4/FLAGcf01c6091 [2019-12-27 04:43:57,506 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 04:43:57,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2019-12-27 04:43:57,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d0ee032/188be466af5d4e65b3a72c9d28cae0d4/FLAGcf01c6091 [2019-12-27 04:43:57,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79d0ee032/188be466af5d4e65b3a72c9d28cae0d4 [2019-12-27 04:43:57,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 04:43:57,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 04:43:57,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 04:43:57,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 04:43:57,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 04:43:57,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:43:57" (1/1) ... [2019-12-27 04:43:57,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ffcb37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:57, skipping insertion in model container [2019-12-27 04:43:57,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 04:43:57" (1/1) ... [2019-12-27 04:43:57,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 04:43:57,863 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 04:43:58,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:43:58,489 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 04:43:58,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 04:43:58,676 INFO L208 MainTranslator]: Completed translation [2019-12-27 04:43:58,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58 WrapperNode [2019-12-27 04:43:58,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 04:43:58,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 04:43:58,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 04:43:58,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 04:43:58,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 04:43:58,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 04:43:58,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 04:43:58,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 04:43:58,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (1/1) ... [2019-12-27 04:43:58,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 04:43:58,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 04:43:58,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 04:43:58,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 04:43:58,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (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 04:43:58,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 04:43:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 04:43:58,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 04:43:58,849 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-27 04:43:58,850 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-27 04:43:58,851 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-12-27 04:43:58,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-12-27 04:43:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 04:43:58,852 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 04:43:58,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 04:43:58,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 04:43:58,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 04:43:58,856 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 04:43:59,353 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 04:43:59,354 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 04:43:59,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:43:59 BoogieIcfgContainer [2019-12-27 04:43:59,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 04:43:59,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 04:43:59,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 04:43:59,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 04:43:59,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 04:43:57" (1/3) ... [2019-12-27 04:43:59,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50290096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:43:59, skipping insertion in model container [2019-12-27 04:43:59,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 04:43:58" (2/3) ... [2019-12-27 04:43:59,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50290096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 04:43:59, skipping insertion in model container [2019-12-27 04:43:59,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 04:43:59" (3/3) ... [2019-12-27 04:43:59,364 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2019-12-27 04:43:59,374 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 04:43:59,374 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 04:43:59,381 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 04:43:59,382 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 04:43:59,408 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,410 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,410 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,410 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,410 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,411 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,411 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,411 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,412 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,412 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,412 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,413 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,413 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,413 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,413 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,413 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,414 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,414 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,414 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,414 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,415 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,415 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,415 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,416 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,416 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,416 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,420 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,420 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,421 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,421 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,421 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,421 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,422 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,429 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,429 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,429 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,429 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,430 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,430 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,430 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 04:43:59,456 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 04:43:59,476 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 04:43:59,477 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 04:43:59,477 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 04:43:59,477 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 04:43:59,477 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 04:43:59,477 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 04:43:59,478 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 04:43:59,478 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 04:43:59,493 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions [2019-12-27 04:43:59,495 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 04:43:59,567 INFO L132 PetriNetUnfolder]: 6/91 cut-off events. [2019-12-27 04:43:59,567 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 04:43:59,574 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2019-12-27 04:43:59,577 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions [2019-12-27 04:43:59,605 INFO L132 PetriNetUnfolder]: 6/91 cut-off events. [2019-12-27 04:43:59,605 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 04:43:59,607 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 91 events. 6/91 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs. 0/85 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2019-12-27 04:43:59,610 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 840 [2019-12-27 04:43:59,611 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 04:44:01,346 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-12-27 04:44:01,735 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-12-27 04:44:01,941 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-12-27 04:44:02,612 WARN L192 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 147 [2019-12-27 04:44:02,897 WARN L192 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-12-27 04:44:02,906 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2947 [2019-12-27 04:44:02,907 INFO L214 etLargeBlockEncoding]: Total number of compositions: 64 [2019-12-27 04:44:02,910 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 34 transitions [2019-12-27 04:44:02,928 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2019-12-27 04:44:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2019-12-27 04:44:02,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 04:44:02,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:02,943 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 04:44:02,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:44:02,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:02,950 INFO L82 PathProgramCache]: Analyzing trace with hash -809629055, now seen corresponding path program 1 times [2019-12-27 04:44:02,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:02,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384189729] [2019-12-27 04:44:02,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:03,154 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 04:44:03,155 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384189729] [2019-12-27 04:44:03,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:03,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:44:03,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983051759] [2019-12-27 04:44:03,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 04:44:03,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:03,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 04:44:03,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 04:44:03,179 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2019-12-27 04:44:03,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:03,211 INFO L93 Difference]: Finished difference Result 198 states and 455 transitions. [2019-12-27 04:44:03,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 04:44:03,212 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-12-27 04:44:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:03,245 INFO L225 Difference]: With dead ends: 198 [2019-12-27 04:44:03,245 INFO L226 Difference]: Without dead ends: 197 [2019-12-27 04:44:03,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 04:44:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-12-27 04:44:03,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2019-12-27 04:44:03,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-12-27 04:44:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 454 transitions. [2019-12-27 04:44:03,299 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 454 transitions. Word has length 17 [2019-12-27 04:44:03,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:03,300 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 454 transitions. [2019-12-27 04:44:03,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 04:44:03,300 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 454 transitions. [2019-12-27 04:44:03,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-27 04:44:03,302 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:03,303 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] [2019-12-27 04:44:03,303 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:44:03,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:03,303 INFO L82 PathProgramCache]: Analyzing trace with hash -354172755, now seen corresponding path program 1 times [2019-12-27 04:44:03,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:03,304 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379955504] [2019-12-27 04:44:03,304 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:03,419 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 04:44:03,420 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379955504] [2019-12-27 04:44:03,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:03,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 04:44:03,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008231260] [2019-12-27 04:44:03,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 04:44:03,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:03,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 04:44:03,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 04:44:03,423 INFO L87 Difference]: Start difference. First operand 197 states and 454 transitions. Second operand 3 states. [2019-12-27 04:44:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:03,476 INFO L93 Difference]: Finished difference Result 107 states and 223 transitions. [2019-12-27 04:44:03,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 04:44:03,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-12-27 04:44:03,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:03,478 INFO L225 Difference]: With dead ends: 107 [2019-12-27 04:44:03,478 INFO L226 Difference]: Without dead ends: 107 [2019-12-27 04:44:03,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 04:44:03,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-12-27 04:44:03,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-12-27 04:44:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-12-27 04:44:03,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 223 transitions. [2019-12-27 04:44:03,498 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 223 transitions. Word has length 21 [2019-12-27 04:44:03,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:03,500 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 223 transitions. [2019-12-27 04:44:03,501 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 04:44:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 223 transitions. [2019-12-27 04:44:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-27 04:44:03,502 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:03,502 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] [2019-12-27 04:44:03,502 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:44:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:03,504 INFO L82 PathProgramCache]: Analyzing trace with hash 443096617, now seen corresponding path program 2 times [2019-12-27 04:44:03,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:03,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370934549] [2019-12-27 04:44:03,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:03,655 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 04:44:03,655 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370934549] [2019-12-27 04:44:03,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:03,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 04:44:03,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086492781] [2019-12-27 04:44:03,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 04:44:03,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:03,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 04:44:03,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 04:44:03,658 INFO L87 Difference]: Start difference. First operand 107 states and 223 transitions. Second operand 5 states. [2019-12-27 04:44:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:03,772 INFO L93 Difference]: Finished difference Result 80 states and 137 transitions. [2019-12-27 04:44:03,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 04:44:03,772 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-12-27 04:44:03,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:03,773 INFO L225 Difference]: With dead ends: 80 [2019-12-27 04:44:03,773 INFO L226 Difference]: Without dead ends: 80 [2019-12-27 04:44:03,774 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 04:44:03,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-27 04:44:03,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-12-27 04:44:03,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-27 04:44:03,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 137 transitions. [2019-12-27 04:44:03,781 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 137 transitions. Word has length 21 [2019-12-27 04:44:03,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:03,781 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 137 transitions. [2019-12-27 04:44:03,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 04:44:03,782 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 137 transitions. [2019-12-27 04:44:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-27 04:44:03,783 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:03,783 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] [2019-12-27 04:44:03,783 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:44:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:03,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1479825885, now seen corresponding path program 3 times [2019-12-27 04:44:03,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:03,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805019649] [2019-12-27 04:44:03,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:03,870 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 04:44:03,870 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805019649] [2019-12-27 04:44:03,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:03,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 04:44:03,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312377296] [2019-12-27 04:44:03,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 04:44:03,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:03,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 04:44:03,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 04:44:03,873 INFO L87 Difference]: Start difference. First operand 80 states and 137 transitions. Second operand 7 states. [2019-12-27 04:44:03,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:03,965 INFO L93 Difference]: Finished difference Result 80 states and 136 transitions. [2019-12-27 04:44:03,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 04:44:03,965 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-12-27 04:44:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:03,966 INFO L225 Difference]: With dead ends: 80 [2019-12-27 04:44:03,966 INFO L226 Difference]: Without dead ends: 56 [2019-12-27 04:44:03,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-12-27 04:44:03,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-27 04:44:03,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-27 04:44:03,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-27 04:44:03,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 88 transitions. [2019-12-27 04:44:03,972 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 88 transitions. Word has length 21 [2019-12-27 04:44:03,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:03,972 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 88 transitions. [2019-12-27 04:44:03,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 04:44:03,973 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 88 transitions. [2019-12-27 04:44:03,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-27 04:44:03,973 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 04:44:03,973 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] [2019-12-27 04:44:03,974 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 04:44:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 04:44:03,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1140471321, now seen corresponding path program 1 times [2019-12-27 04:44:03,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 04:44:03,975 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416291857] [2019-12-27 04:44:03,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 04:44:04,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 04:44:04,073 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 04:44:04,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416291857] [2019-12-27 04:44:04,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 04:44:04,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 04:44:04,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854876643] [2019-12-27 04:44:04,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 04:44:04,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 04:44:04,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 04:44:04,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-27 04:44:04,076 INFO L87 Difference]: Start difference. First operand 56 states and 88 transitions. Second operand 7 states. [2019-12-27 04:44:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 04:44:04,172 INFO L93 Difference]: Finished difference Result 53 states and 82 transitions. [2019-12-27 04:44:04,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 04:44:04,173 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2019-12-27 04:44:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 04:44:04,174 INFO L225 Difference]: With dead ends: 53 [2019-12-27 04:44:04,174 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 04:44:04,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-27 04:44:04,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 04:44:04,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 04:44:04,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 04:44:04,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 04:44:04,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-12-27 04:44:04,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 04:44:04,177 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 04:44:04,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 04:44:04,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 04:44:04,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 04:44:04,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 04:44:04 BasicIcfg [2019-12-27 04:44:04,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 04:44:04,187 INFO L168 Benchmark]: Toolchain (without parser) took 6409.34 ms. Allocated memory was 138.9 MB in the beginning and 277.3 MB in the end (delta: 138.4 MB). Free memory was 102.5 MB in the beginning and 111.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 129.8 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,188 INFO L168 Benchmark]: CDTParser took 1.40 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 900.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 138.5 MB in the end (delta: -36.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.97 ms. Allocated memory is still 202.9 MB. Free memory was 138.5 MB in the beginning and 135.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,197 INFO L168 Benchmark]: Boogie Preprocessor took 39.20 ms. Allocated memory is still 202.9 MB. Free memory was 135.8 MB in the beginning and 133.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,198 INFO L168 Benchmark]: RCFGBuilder took 570.80 ms. Allocated memory is still 202.9 MB. Free memory was 133.8 MB in the beginning and 107.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,199 INFO L168 Benchmark]: TraceAbstraction took 4826.29 ms. Allocated memory was 202.9 MB in the beginning and 277.3 MB in the end (delta: 74.4 MB). Free memory was 107.2 MB in the beginning and 111.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. [2019-12-27 04:44:04,213 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 900.30 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.1 MB in the beginning and 138.5 MB in the end (delta: -36.5 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 66.97 ms. Allocated memory is still 202.9 MB. Free memory was 138.5 MB in the beginning and 135.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.20 ms. Allocated memory is still 202.9 MB. Free memory was 135.8 MB in the beginning and 133.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 570.80 ms. Allocated memory is still 202.9 MB. Free memory was 133.8 MB in the beginning and 107.9 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4826.29 ms. Allocated memory was 202.9 MB in the beginning and 277.3 MB in the end (delta: 74.4 MB). Free memory was 107.2 MB in the beginning and 111.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 70.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.4s, 91 ProgramPointsBefore, 34 ProgramPointsAfterwards, 91 TransitionsBefore, 34 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 406 VarBasedMoverChecksPositive, 25 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2947 CheckedPairsTotal, 64 TotalNumberOfCompositions - PositiveResult [Line: 947]: 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, 85 locations, 1 error locations. Result: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 130 SDtfs, 112 SDslu, 159 SDs, 0 SdLazy, 121 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5936 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...