/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-18 00:20:18,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-18 00:20:18,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-18 00:20:18,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-18 00:20:18,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-18 00:20:18,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-18 00:20:18,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-18 00:20:18,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-18 00:20:18,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-18 00:20:18,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-18 00:20:18,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-18 00:20:18,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-18 00:20:18,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-18 00:20:18,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-18 00:20:18,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-18 00:20:18,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-18 00:20:18,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-18 00:20:18,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-18 00:20:18,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-18 00:20:18,699 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-18 00:20:18,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-18 00:20:18,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-18 00:20:18,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-18 00:20:18,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-18 00:20:18,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-18 00:20:18,713 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-18 00:20:18,714 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-18 00:20:18,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-18 00:20:18,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-18 00:20:18,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-18 00:20:18,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-18 00:20:18,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-18 00:20:18,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-18 00:20:18,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-18 00:20:18,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-18 00:20:18,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-18 00:20:18,723 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-NoLbe-keepdead.epf [2020-12-18 00:20:18,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-18 00:20:18,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-18 00:20:18,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-18 00:20:18,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-18 00:20:18,752 INFO L138 SettingsManager]: * Use SBE=true [2020-12-18 00:20:18,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-18 00:20:18,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-18 00:20:18,752 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-18 00:20:18,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-18 00:20:18,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-18 00:20:18,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-18 00:20:18,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-18 00:20:18,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-18 00:20:18,754 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-18 00:20:18,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-18 00:20:18,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-18 00:20:18,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-18 00:20:18,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-18 00:20:18,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-18 00:20:18,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-18 00:20:18,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-18 00:20:18,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:20:18,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-18 00:20:18,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-18 00:20:18,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-18 00:20:18,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-18 00:20:18,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-18 00:20:18,760 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-18 00:20:18,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-18 00:20:18,760 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-18 00:20:18,760 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-18 00:20:18,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-18 00:20:19,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-18 00:20:19,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-18 00:20:19,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-18 00:20:19,164 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-18 00:20:19,166 INFO L275 PluginConnector]: CDTParser initialized [2020-12-18 00:20:19,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-12-18 00:20:19,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9b6efc/118e5c6b2d6f43cbaacee0697f8f1c25/FLAG079ec4a5c [2020-12-18 00:20:20,097 INFO L306 CDTParser]: Found 1 translation units. [2020-12-18 00:20:20,101 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-12-18 00:20:20,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9b6efc/118e5c6b2d6f43cbaacee0697f8f1c25/FLAG079ec4a5c [2020-12-18 00:20:20,156 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff9b6efc/118e5c6b2d6f43cbaacee0697f8f1c25 [2020-12-18 00:20:20,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-18 00:20:20,163 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-18 00:20:20,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-18 00:20:20,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-18 00:20:20,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-18 00:20:20,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:20:20" (1/1) ... [2020-12-18 00:20:20,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbd2abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:20, skipping insertion in model container [2020-12-18 00:20:20,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 12:20:20" (1/1) ... [2020-12-18 00:20:20,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-18 00:20:20,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-18 00:20:21,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:20:21,040 INFO L203 MainTranslator]: Completed pre-run [2020-12-18 00:20:21,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-18 00:20:21,631 INFO L208 MainTranslator]: Completed translation [2020-12-18 00:20:21,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21 WrapperNode [2020-12-18 00:20:21,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-18 00:20:21,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-18 00:20:21,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-18 00:20:21,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-18 00:20:21,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-18 00:20:21,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-18 00:20:21,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-18 00:20:21,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-18 00:20:21,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... [2020-12-18 00:20:21,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-18 00:20:21,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-18 00:20:21,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-18 00:20:21,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-18 00:20:21,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-18 00:20:21,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-18 00:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-18 00:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-18 00:20:21,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-18 00:20:21,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-18 00:20:21,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-18 00:20:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-18 00:20:21,935 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-18 00:20:21,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-18 00:20:21,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-18 00:20:21,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-18 00:20:21,939 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-18 00:20:22,757 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-18 00:20:22,757 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-18 00:20:22,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:20:22 BoogieIcfgContainer [2020-12-18 00:20:22,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-18 00:20:22,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-18 00:20:22,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-18 00:20:22,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-18 00:20:22,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 12:20:20" (1/3) ... [2020-12-18 00:20:22,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b2c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:20:22, skipping insertion in model container [2020-12-18 00:20:22,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 12:20:21" (2/3) ... [2020-12-18 00:20:22,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b2c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 12:20:22, skipping insertion in model container [2020-12-18 00:20:22,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 12:20:22" (3/3) ... [2020-12-18 00:20:22,769 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-12-18 00:20:22,786 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-18 00:20:22,787 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-18 00:20:22,791 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-18 00:20:22,792 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-18 00:20:22,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,826 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,827 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,827 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,828 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,828 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,829 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,829 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,830 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,830 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,830 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,830 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,830 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,831 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,831 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,831 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,831 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,831 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,832 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,833 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,834 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,836 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,837 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,837 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,837 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,837 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,838 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,838 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,838 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_reach_error_#t~nondet32.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,838 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-18 00:20:22,851 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-12-18 00:20:22,864 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-18 00:20:22,888 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-18 00:20:22,888 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-18 00:20:22,888 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-18 00:20:22,888 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-18 00:20:22,889 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-18 00:20:22,889 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-18 00:20:22,889 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-18 00:20:22,889 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-18 00:20:22,905 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 108 transitions, 224 flow [2020-12-18 00:20:22,967 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-18 00:20:22,987 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:20:22,988 INFO L504 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, 1, 1, 1, 1] [2020-12-18 00:20:22,988 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:20:22,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:20:22,994 INFO L82 PathProgramCache]: Analyzing trace with hash 523940374, now seen corresponding path program 1 times [2020-12-18 00:20:23,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:20:23,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645562284] [2020-12-18 00:20:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:20:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:20:23,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:20:23,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645562284] [2020-12-18 00:20:23,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:20:23,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-18 00:20:23,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907055851] [2020-12-18 00:20:23,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-18 00:20:23,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:20:23,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-18 00:20:23,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-18 00:20:23,533 INFO L87 Difference]: Start difference. First operand has 349 states, 341 states have (on average 1.8269794721407624) internal successors, (623), 348 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:20:23,698 INFO L93 Difference]: Finished difference Result 309 states and 519 transitions. [2020-12-18 00:20:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-18 00:20:23,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2020-12-18 00:20:23,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:20:23,702 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:20:23,702 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 519 transitions. Word has length 29 [2020-12-18 00:20:23,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:20:23,704 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 519 transitions. [2020-12-18 00:20:23,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 519 transitions. [2020-12-18 00:20:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-18 00:20:23,706 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:20:23,706 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:20:23,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-18 00:20:23,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:20:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:20:23,707 INFO L82 PathProgramCache]: Analyzing trace with hash 300800235, now seen corresponding path program 1 times [2020-12-18 00:20:23,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:20:23,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757247605] [2020-12-18 00:20:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:20:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:20:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:20:23,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757247605] [2020-12-18 00:20:23,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:20:23,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-18 00:20:23,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440578634] [2020-12-18 00:20:23,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-18 00:20:23,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:20:23,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-18 00:20:23,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-18 00:20:23,945 INFO L87 Difference]: Start difference. First operand 309 states and 519 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:20:24,015 INFO L93 Difference]: Finished difference Result 309 states and 518 transitions. [2020-12-18 00:20:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-18 00:20:24,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2020-12-18 00:20:24,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:20:24,017 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:20:24,017 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 518 transitions. Word has length 37 [2020-12-18 00:20:24,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:20:24,018 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 518 transitions. [2020-12-18 00:20:24,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,018 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 518 transitions. [2020-12-18 00:20:24,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-18 00:20:24,021 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:20:24,021 INFO L504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:20:24,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-18 00:20:24,022 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:20:24,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:20:24,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1781250169, now seen corresponding path program 1 times [2020-12-18 00:20:24,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:20:24,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80831600] [2020-12-18 00:20:24,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:20:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:20:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:20:24,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80831600] [2020-12-18 00:20:24,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:20:24,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-18 00:20:24,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581869437] [2020-12-18 00:20:24,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-18 00:20:24,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:20:24,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-18 00:20:24,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-18 00:20:24,166 INFO L87 Difference]: Start difference. First operand 309 states and 518 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:20:24,225 INFO L93 Difference]: Finished difference Result 249 states and 402 transitions. [2020-12-18 00:20:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-18 00:20:24,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-12-18 00:20:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:20:24,226 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:20:24,227 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 402 transitions. Word has length 42 [2020-12-18 00:20:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:20:24,227 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 402 transitions. [2020-12-18 00:20:24,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 402 transitions. [2020-12-18 00:20:24,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-18 00:20:24,231 INFO L496 BasicCegarLoop]: Found error trace [2020-12-18 00:20:24,231 INFO L504 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-18 00:20:24,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-18 00:20:24,232 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-18 00:20:24,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-18 00:20:24,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1292805432, now seen corresponding path program 1 times [2020-12-18 00:20:24,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-18 00:20:24,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815345470] [2020-12-18 00:20:24,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-18 00:20:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-18 00:20:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-18 00:20:24,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815345470] [2020-12-18 00:20:24,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-18 00:20:24,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-18 00:20:24,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25698561] [2020-12-18 00:20:24,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-18 00:20:24,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-18 00:20:24,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-18 00:20:24,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-18 00:20:24,358 INFO L87 Difference]: Start difference. First operand 249 states and 402 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-18 00:20:24,418 INFO L93 Difference]: Finished difference Result 245 states and 398 transitions. [2020-12-18 00:20:24,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-18 00:20:24,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2020-12-18 00:20:24,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-18 00:20:24,419 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-18 00:20:24,420 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 398 transitions. Word has length 63 [2020-12-18 00:20:24,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-18 00:20:24,420 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 398 transitions. [2020-12-18 00:20:24,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-18 00:20:24,421 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 398 transitions. [2020-12-18 00:20:24,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-18 00:20:24,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-18 00:20:24,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 12:20:24 BasicIcfg [2020-12-18 00:20:24,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-18 00:20:24,434 INFO L168 Benchmark]: Toolchain (without parser) took 4270.22 ms. Allocated memory is still 306.2 MB. Free memory was 277.9 MB in the beginning and 162.4 MB in the end (delta: 115.5 MB). Peak memory consumption was 116.7 MB. Max. memory is 16.0 GB. [2020-12-18 00:20:24,435 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 306.2 MB. Free memory was 277.2 MB in the beginning and 277.1 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:20:24,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1465.92 ms. Allocated memory is still 306.2 MB. Free memory was 277.7 MB in the beginning and 166.1 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.0 MB. Max. memory is 16.0 GB. [2020-12-18 00:20:24,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.54 ms. Allocated memory is still 306.2 MB. Free memory was 166.1 MB in the beginning and 162.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2020-12-18 00:20:24,440 INFO L168 Benchmark]: Boogie Preprocessor took 66.26 ms. Allocated memory is still 306.2 MB. Free memory was 162.9 MB in the beginning and 160.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-18 00:20:24,446 INFO L168 Benchmark]: RCFGBuilder took 922.71 ms. Allocated memory is still 306.2 MB. Free memory was 160.8 MB in the beginning and 118.9 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. [2020-12-18 00:20:24,447 INFO L168 Benchmark]: TraceAbstraction took 1666.60 ms. Allocated memory is still 306.2 MB. Free memory was 118.9 MB in the beginning and 162.4 MB in the end (delta: -43.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-18 00:20:24,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 306.2 MB. Free memory was 277.2 MB in the beginning and 277.1 MB in the end (delta: 136.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1465.92 ms. Allocated memory is still 306.2 MB. Free memory was 277.7 MB in the beginning and 166.1 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 134.54 ms. Allocated memory is still 306.2 MB. Free memory was 166.1 MB in the beginning and 162.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.26 ms. Allocated memory is still 306.2 MB. Free memory was 162.9 MB in the beginning and 160.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 922.71 ms. Allocated memory is still 306.2 MB. Free memory was 160.8 MB in the beginning and 118.9 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1666.60 ms. Allocated memory is still 306.2 MB. Free memory was 118.9 MB in the beginning and 162.4 MB in the end (delta: -43.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 99 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 369 SDtfs, 386 SDslu, 690 SDs, 0 SdLazy, 75 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 171 NumberOfCodeBlocks, 171 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 167 ConstructedInterpolants, 0 QuantifiedInterpolants, 9442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...