/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-05 23:17:01,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-05 23:17:01,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-05 23:17:01,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-05 23:17:01,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-05 23:17:01,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-05 23:17:01,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-05 23:17:01,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-05 23:17:01,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-05 23:17:01,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-05 23:17:01,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-05 23:17:01,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-05 23:17:01,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-05 23:17:01,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-05 23:17:01,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-05 23:17:01,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-05 23:17:01,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-05 23:17:01,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-05 23:17:01,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-05 23:17:01,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-05 23:17:01,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-05 23:17:01,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-05 23:17:01,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-05 23:17:01,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-05 23:17:01,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-05 23:17:01,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-05 23:17:01,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-05 23:17:01,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-05 23:17:01,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-05 23:17:01,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-05 23:17:01,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-05 23:17:01,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-05 23:17:01,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-05 23:17:01,848 INFO L138 SettingsManager]: * Use SBE=true [2020-10-05 23:17:01,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-05 23:17:01,848 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-05 23:17:01,848 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-05 23:17:01,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-05 23:17:01,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-05 23:17:01,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-05 23:17:01,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-05 23:17:01,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-05 23:17:01,849 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-05 23:17:01,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-05 23:17:01,850 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-05 23:17:01,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-05 23:17:01,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-05 23:17:01,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-05 23:17:01,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-05 23:17:01,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-05 23:17:01,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:17:01,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-05 23:17:01,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-05 23:17:02,157 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-05 23:17:02,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-05 23:17:02,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-05 23:17:02,175 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-05 23:17:02,176 INFO L275 PluginConnector]: CDTParser initialized [2020-10-05 23:17:02,176 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-10-05 23:17:02,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa82241a6/2657e72a35604ae7a59f5184c60b9084/FLAGa1130f4ad [2020-10-05 23:17:02,838 INFO L306 CDTParser]: Found 1 translation units. [2020-10-05 23:17:02,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-10-05 23:17:02,858 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa82241a6/2657e72a35604ae7a59f5184c60b9084/FLAGa1130f4ad [2020-10-05 23:17:03,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa82241a6/2657e72a35604ae7a59f5184c60b9084 [2020-10-05 23:17:03,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-05 23:17:03,142 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-05 23:17:03,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-05 23:17:03,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-05 23:17:03,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-05 23:17:03,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:03,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c90b9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03, skipping insertion in model container [2020-10-05 23:17:03,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:03,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-05 23:17:03,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-05 23:17:03,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:17:03,754 INFO L203 MainTranslator]: Completed pre-run [2020-10-05 23:17:03,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-05 23:17:03,936 INFO L208 MainTranslator]: Completed translation [2020-10-05 23:17:03,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03 WrapperNode [2020-10-05 23:17:03,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-05 23:17:03,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-05 23:17:03,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-05 23:17:03,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-05 23:17:03,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:03,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-05 23:17:04,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-05 23:17:04,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-05 23:17:04,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-05 23:17:04,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... [2020-10-05 23:17:04,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-05 23:17:04,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-05 23:17:04,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-05 23:17:04,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-05 23:17:04,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-05 23:17:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-05 23:17:04,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-05 23:17:04,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-05 23:17:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-05 23:17:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-05 23:17:04,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-05 23:17:04,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-05 23:17:04,160 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-05 23:17:04,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-05 23:17:04,786 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-05 23:17:04,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:17:04 BoogieIcfgContainer [2020-10-05 23:17:04,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-05 23:17:04,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-05 23:17:04,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-05 23:17:04,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-05 23:17:04,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.10 11:17:03" (1/3) ... [2020-10-05 23:17:04,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8a672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:17:04, skipping insertion in model container [2020-10-05 23:17:04,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.10 11:17:03" (2/3) ... [2020-10-05 23:17:04,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e8a672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.10 11:17:04, skipping insertion in model container [2020-10-05 23:17:04,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.10 11:17:04" (3/3) ... [2020-10-05 23:17:04,798 INFO L109 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2020-10-05 23:17:04,809 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-05 23:17:04,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-05 23:17:04,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-05 23:17:04,819 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-05 23:17:04,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,843 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,844 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,844 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-05 23:17:04,872 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-05 23:17:04,896 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-05 23:17:04,896 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-05 23:17:04,896 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-05 23:17:04,897 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-05 23:17:04,897 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-05 23:17:04,897 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-05 23:17:04,897 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-05 23:17:04,897 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-05 23:17:04,914 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 91 flow [2020-10-05 23:17:04,916 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-10-05 23:17:04,948 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-10-05 23:17:04,948 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:17:04,953 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-10-05 23:17:04,955 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-10-05 23:17:04,967 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-10-05 23:17:04,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-05 23:17:04,968 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-10-05 23:17:04,969 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 378 [2020-10-05 23:17:04,970 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-05 23:17:05,775 INFO L206 etLargeBlockEncoding]: Checked pairs total: 840 [2020-10-05 23:17:05,775 INFO L214 etLargeBlockEncoding]: Total number of compositions: 28 [2020-10-05 23:17:05,779 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 18 places, 16 transitions, 37 flow [2020-10-05 23:17:05,791 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 44 states. [2020-10-05 23:17:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-10-05 23:17:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-05 23:17:05,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:17:05,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-05 23:17:05,816 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:17:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:17:05,825 INFO L82 PathProgramCache]: Analyzing trace with hash 313153214, now seen corresponding path program 1 times [2020-10-05 23:17:05,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:17:05,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976882268] [2020-10-05 23:17:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:17:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:17:06,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:17:06,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976882268] [2020-10-05 23:17:06,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:17:06,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-05 23:17:06,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382242914] [2020-10-05 23:17:06,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:17:06,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:17:06,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:17:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:17:06,022 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 3 states. [2020-10-05 23:17:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:17:06,059 INFO L93 Difference]: Finished difference Result 34 states and 59 transitions. [2020-10-05 23:17:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:17:06,061 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-05 23:17:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:17:06,071 INFO L225 Difference]: With dead ends: 34 [2020-10-05 23:17:06,072 INFO L226 Difference]: Without dead ends: 32 [2020-10-05 23:17:06,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:17:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-05 23:17:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-05 23:17:06,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-05 23:17:06,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 56 transitions. [2020-10-05 23:17:06,110 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 56 transitions. Word has length 5 [2020-10-05 23:17:06,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:17:06,110 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 56 transitions. [2020-10-05 23:17:06,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:17:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 56 transitions. [2020-10-05 23:17:06,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-05 23:17:06,111 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:17:06,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:17:06,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-05 23:17:06,112 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:17:06,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:17:06,113 INFO L82 PathProgramCache]: Analyzing trace with hash 297773264, now seen corresponding path program 1 times [2020-10-05 23:17:06,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:17:06,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766557788] [2020-10-05 23:17:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:17:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:17:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:17:06,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766557788] [2020-10-05 23:17:06,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:17:06,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:17:06,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305775197] [2020-10-05 23:17:06,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-05 23:17:06,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:17:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-05 23:17:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:17:06,181 INFO L87 Difference]: Start difference. First operand 32 states and 56 transitions. Second operand 3 states. [2020-10-05 23:17:06,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:17:06,191 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2020-10-05 23:17:06,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-05 23:17:06,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-05 23:17:06,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:17:06,192 INFO L225 Difference]: With dead ends: 27 [2020-10-05 23:17:06,193 INFO L226 Difference]: Without dead ends: 24 [2020-10-05 23:17:06,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-05 23:17:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-05 23:17:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-05 23:17:06,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-05 23:17:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 37 transitions. [2020-10-05 23:17:06,199 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 37 transitions. Word has length 7 [2020-10-05 23:17:06,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:17:06,199 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 37 transitions. [2020-10-05 23:17:06,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-05 23:17:06,200 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2020-10-05 23:17:06,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-05 23:17:06,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:17:06,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:17:06,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-05 23:17:06,201 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:17:06,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:17:06,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1982953930, now seen corresponding path program 1 times [2020-10-05 23:17:06,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:17:06,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696889888] [2020-10-05 23:17:06,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:17:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:17:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:17:06,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696889888] [2020-10-05 23:17:06,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:17:06,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-05 23:17:06,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100852571] [2020-10-05 23:17:06,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:17:06,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:17:06,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:17:06,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:17:06,330 INFO L87 Difference]: Start difference. First operand 24 states and 37 transitions. Second operand 4 states. [2020-10-05 23:17:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:17:06,354 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2020-10-05 23:17:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:17:06,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-05 23:17:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:17:06,356 INFO L225 Difference]: With dead ends: 18 [2020-10-05 23:17:06,356 INFO L226 Difference]: Without dead ends: 18 [2020-10-05 23:17:06,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:17:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-05 23:17:06,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-05 23:17:06,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-05 23:17:06,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-10-05 23:17:06,361 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 25 transitions. Word has length 9 [2020-10-05 23:17:06,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:17:06,361 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-10-05 23:17:06,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:17:06,361 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-10-05 23:17:06,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-05 23:17:06,362 INFO L414 BasicCegarLoop]: Found error trace [2020-10-05 23:17:06,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-05 23:17:06,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-05 23:17:06,363 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-05 23:17:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-05 23:17:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash -970597882, now seen corresponding path program 1 times [2020-10-05 23:17:06,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-05 23:17:06,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460250563] [2020-10-05 23:17:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-05 23:17:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-05 23:17:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-05 23:17:06,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460250563] [2020-10-05 23:17:06,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-05 23:17:06,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-05 23:17:06,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425315166] [2020-10-05 23:17:06,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-05 23:17:06,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-05 23:17:06,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-05 23:17:06,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:17:06,444 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. Second operand 4 states. [2020-10-05 23:17:06,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-05 23:17:06,451 INFO L93 Difference]: Finished difference Result 17 states and 24 transitions. [2020-10-05 23:17:06,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-05 23:17:06,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-05 23:17:06,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-05 23:17:06,452 INFO L225 Difference]: With dead ends: 17 [2020-10-05 23:17:06,452 INFO L226 Difference]: Without dead ends: 0 [2020-10-05 23:17:06,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-05 23:17:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-05 23:17:06,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-05 23:17:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-05 23:17:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-05 23:17:06,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-05 23:17:06,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-05 23:17:06,454 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-05 23:17:06,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-05 23:17:06,455 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-05 23:17:06,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-05 23:17:06,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-05 23:17:06,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.10 11:17:06 BasicIcfg [2020-10-05 23:17:06,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-05 23:17:06,477 INFO L168 Benchmark]: Toolchain (without parser) took 3334.07 ms. Allocated memory was 137.4 MB in the beginning and 253.2 MB in the end (delta: 115.9 MB). Free memory was 97.6 MB in the beginning and 220.6 MB in the end (delta: -123.0 MB). Peak memory consumption was 116.8 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,478 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.61 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 97.2 MB in the beginning and 158.3 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.73 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 155.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,481 INFO L168 Benchmark]: Boogie Preprocessor took 62.16 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,482 INFO L168 Benchmark]: RCFGBuilder took 702.76 ms. Allocated memory is still 200.8 MB. Free memory was 154.3 MB in the beginning and 110.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,483 INFO L168 Benchmark]: TraceAbstraction took 1684.00 ms. Allocated memory was 200.8 MB in the beginning and 253.2 MB in the end (delta: 52.4 MB). Free memory was 110.3 MB in the beginning and 220.6 MB in the end (delta: -110.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2020-10-05 23:17:06,487 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 117.6 MB in the beginning and 117.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.61 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 97.2 MB in the beginning and 158.3 MB in the end (delta: -61.1 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 83.73 ms. Allocated memory is still 200.8 MB. Free memory was 158.3 MB in the beginning and 155.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.16 ms. Allocated memory is still 200.8 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 702.76 ms. Allocated memory is still 200.8 MB. Free memory was 154.3 MB in the beginning and 110.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1684.00 ms. Allocated memory was 200.8 MB in the beginning and 253.2 MB in the end (delta: 52.4 MB). Free memory was 110.3 MB in the beginning and 220.6 MB in the end (delta: -110.2 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.8s, 45 ProgramPointsBefore, 18 ProgramPointsAfterwards, 43 TransitionsBefore, 16 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 181 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 840 CheckedPairsTotal, 28 TotalNumberOfCompositions - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 710]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 46 SDtfs, 20 SDslu, 29 SDs, 0 SdLazy, 22 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 844 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...