/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-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:26:12,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:26:12,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:26:12,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:26:12,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:26:12,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:26:12,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:26:12,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:26:12,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:26:12,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:26:12,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:26:12,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:26:12,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:26:12,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:26:12,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:26:12,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:26:12,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:26:12,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:26:12,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:26:12,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:26:12,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:26:12,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:26:12,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:26:12,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:26:12,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-18 01:26:12,908 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-18 01:26:12,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-18 01:26:12,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-18 01:26:12,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-18 01:26:12,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-18 01:26:12,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:26:12,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:26:12,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:26:12,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:26:12,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:26:12,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:26:12,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:26:12,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:26:12,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:26:12,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:26:12,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:26:12,930 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-McrAutomaton-WP.epf [2020-09-18 01:26:12,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:26:12,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:26:12,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:26:12,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:26:12,977 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:26:12,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:26:12,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:26:12,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:26:12,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:26:12,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:26:12,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:26:12,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:26:12,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:26:12,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:26:12,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:26:12,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:26:12,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:26:12,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:26:12,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:26:12,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:26:12,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:26:12,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:26:12,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:26:12,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:26:12,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:26:12,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:26:12,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:26:12,983 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:26:12,983 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:26:12,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:26:12,984 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:26:13,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:26:13,453 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:26:13,460 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:26:13,462 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:26:13,462 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:26:13,464 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-09-18 01:26:13,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105ec2180/fe87a4491c794ef9a754b65caeede411/FLAG64d29835a [2020-09-18 01:26:14,287 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:26:14,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2020-09-18 01:26:14,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105ec2180/fe87a4491c794ef9a754b65caeede411/FLAG64d29835a [2020-09-18 01:26:14,435 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/105ec2180/fe87a4491c794ef9a754b65caeede411 [2020-09-18 01:26:14,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:26:14,453 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:26:14,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:26:14,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:26:14,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:26:14,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:26:14" (1/1) ... [2020-09-18 01:26:14,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320ef81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:14, skipping insertion in model container [2020-09-18 01:26:14,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:26:14" (1/1) ... [2020-09-18 01:26:14,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:26:14,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:26:15,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:26:15,108 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:26:15,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:26:15,240 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:26:15,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15 WrapperNode [2020-09-18 01:26:15,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:26:15,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:26:15,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:26:15,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:26:15,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:26:15,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:26:15,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:26:15,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:26:15,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (1/1) ... [2020-09-18 01:26:15,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:26:15,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:26:15,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:26:15,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:26:15,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (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 [2020-09-18 01:26:15,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:26:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:26:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:26:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:26:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:26:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:26:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:26:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:26:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:26:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:26:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:26:15,443 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:26:15,786 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:26:15,787 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:26:15,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:26:15 BoogieIcfgContainer [2020-09-18 01:26:15,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:26:15,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:26:15,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:26:15,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:26:15,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:26:14" (1/3) ... [2020-09-18 01:26:15,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965b047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:26:15, skipping insertion in model container [2020-09-18 01:26:15,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:26:15" (2/3) ... [2020-09-18 01:26:15,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965b047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:26:15, skipping insertion in model container [2020-09-18 01:26:15,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:26:15" (3/3) ... [2020-09-18 01:26:15,804 INFO L109 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2020-09-18 01:26:15,816 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:26:15,816 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:26:15,826 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:26:15,827 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:26:15,857 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,858 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,858 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,859 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,860 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,860 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,860 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,860 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,861 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,866 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,866 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,867 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,874 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,874 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,875 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,875 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:26:15,902 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-18 01:26:15,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:26:15,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:26:15,927 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:26:15,927 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:26:15,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:26:15,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:26:15,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:26:15,927 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:26:15,945 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 56 transitions, 122 flow [2020-09-18 01:26:15,947 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-18 01:26:15,993 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-18 01:26:15,994 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:26:16,000 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-18 01:26:16,002 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 61 places, 56 transitions, 122 flow [2020-09-18 01:26:16,024 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2020-09-18 01:26:16,025 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:26:16,026 INFO L80 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 54 events. 2/54 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-18 01:26:16,028 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-18 01:26:16,029 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:26:17,284 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1165 [2020-09-18 01:26:17,284 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2020-09-18 01:26:17,290 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-18 01:26:17,307 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-18 01:26:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-18 01:26:17,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-18 01:26:17,320 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:26:17,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-18 01:26:17,322 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:26:17,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:26:17,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1988358065, now seen corresponding path program 1 times [2020-09-18 01:26:17,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:26:17,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988499010] [2020-09-18 01:26:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:26:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:26:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:26:17,618 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988499010] [2020-09-18 01:26:17,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:26:17,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:26:17,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1282494450] [2020-09-18 01:26:17,622 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:26:17,626 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:26:17,641 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-18 01:26:17,641 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:26:17,644 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:26:17,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:26:17,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:26:17,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:26:17,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:26:17,680 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-18 01:26:17,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:26:17,717 INFO L93 Difference]: Finished difference Result 70 states and 149 transitions. [2020-09-18 01:26:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:26:17,719 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-18 01:26:17,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:26:17,735 INFO L225 Difference]: With dead ends: 70 [2020-09-18 01:26:17,735 INFO L226 Difference]: Without dead ends: 54 [2020-09-18 01:26:17,740 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 [2020-09-18 01:26:17,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-18 01:26:17,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-18 01:26:17,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-18 01:26:17,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2020-09-18 01:26:17,807 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2020-09-18 01:26:17,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:26:17,808 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2020-09-18 01:26:17,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:26:17,809 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2020-09-18 01:26:17,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-18 01:26:17,810 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:26:17,810 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:26:17,811 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:26:17,811 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:26:17,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:26:17,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1509525162, now seen corresponding path program 1 times [2020-09-18 01:26:17,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:26:17,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59733261] [2020-09-18 01:26:17,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:26:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:26:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:26:17,951 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59733261] [2020-09-18 01:26:17,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:26:17,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:26:17,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1991294851] [2020-09-18 01:26:17,952 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:26:17,953 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:26:17,955 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 9 transitions. [2020-09-18 01:26:17,955 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:26:17,973 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:26:17,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:26:17,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:26:17,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:26:17,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:26:17,976 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand 4 states. [2020-09-18 01:26:17,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:26:18,000 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-09-18 01:26:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:26:18,000 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-09-18 01:26:18,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:26:18,001 INFO L225 Difference]: With dead ends: 60 [2020-09-18 01:26:18,002 INFO L226 Difference]: Without dead ends: 36 [2020-09-18 01:26:18,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:26:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-18 01:26:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-18 01:26:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-18 01:26:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-09-18 01:26:18,009 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 7 [2020-09-18 01:26:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:26:18,009 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-09-18 01:26:18,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:26:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-09-18 01:26:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 01:26:18,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:26:18,010 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:26:18,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:26:18,011 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:26:18,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:26:18,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1014872071, now seen corresponding path program 1 times [2020-09-18 01:26:18,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:26:18,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656995076] [2020-09-18 01:26:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:26:18,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:26:18,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:26:18,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656995076] [2020-09-18 01:26:18,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:26:18,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:26:18,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [10907271] [2020-09-18 01:26:18,135 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:26:18,136 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:26:18,139 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-09-18 01:26:18,139 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:26:18,171 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:26:18,202 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:26:18,222 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:26:18,248 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [535#(not (= 2 ~__unbuffered_cnt~0))] [2020-09-18 01:26:18,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:26:18,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:26:18,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:26:18,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:26:18,250 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 5 states. [2020-09-18 01:26:18,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:26:18,305 INFO L93 Difference]: Finished difference Result 32 states and 51 transitions. [2020-09-18 01:26:18,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:26:18,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-18 01:26:18,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:26:18,307 INFO L225 Difference]: With dead ends: 32 [2020-09-18 01:26:18,307 INFO L226 Difference]: Without dead ends: 22 [2020-09-18 01:26:18,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:26:18,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-18 01:26:18,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-18 01:26:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-18 01:26:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 30 transitions. [2020-09-18 01:26:18,311 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 30 transitions. Word has length 9 [2020-09-18 01:26:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:26:18,312 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 30 transitions. [2020-09-18 01:26:18,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:26:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2020-09-18 01:26:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 01:26:18,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:26:18,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:26:18,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:26:18,313 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:26:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:26:18,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1799382783, now seen corresponding path program 1 times [2020-09-18 01:26:18,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:26:18,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756504592] [2020-09-18 01:26:18,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:26:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:26:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:26:18,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756504592] [2020-09-18 01:26:18,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:26:18,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:26:18,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [831644002] [2020-09-18 01:26:18,387 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:26:18,388 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:26:18,390 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-18 01:26:18,391 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:26:18,428 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:26:18,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:26:18,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:26:18,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:26:18,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:26:18,435 INFO L87 Difference]: Start difference. First operand 22 states and 30 transitions. Second operand 4 states. [2020-09-18 01:26:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:26:18,448 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2020-09-18 01:26:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:26:18,449 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 01:26:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:26:18,449 INFO L225 Difference]: With dead ends: 21 [2020-09-18 01:26:18,449 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:26:18,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:26:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:26:18,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:26:18,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:26:18,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:26:18,451 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-09-18 01:26:18,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:26:18,451 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:26:18,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:26:18,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:26:18,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:26:18,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:26:18,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:26:18 BasicIcfg [2020-09-18 01:26:18,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:26:18,461 INFO L168 Benchmark]: Toolchain (without parser) took 4009.52 ms. Allocated memory was 139.5 MB in the beginning and 251.1 MB in the end (delta: 111.7 MB). Free memory was 100.0 MB in the beginning and 163.9 MB in the end (delta: -63.9 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,462 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,463 INFO L168 Benchmark]: CACSL2BoogieTranslator took 787.86 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 161.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 203.4 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,464 INFO L168 Benchmark]: Boogie Preprocessor took 43.82 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,465 INFO L168 Benchmark]: RCFGBuilder took 437.47 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 137.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,466 INFO L168 Benchmark]: TraceAbstraction took 2662.13 ms. Allocated memory was 203.4 MB in the beginning and 251.1 MB in the end (delta: 47.7 MB). Free memory was 137.6 MB in the beginning and 163.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-09-18 01:26:18,471 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 139.5 MB. Free memory was 119.8 MB in the beginning and 119.4 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 787.86 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 161.4 MB in the end (delta: -61.7 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 68.33 ms. Allocated memory is still 203.4 MB. Free memory was 161.4 MB in the beginning and 159.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.82 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.47 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 137.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2662.13 ms. Allocated memory was 203.4 MB in the beginning and 251.1 MB in the end (delta: 47.7 MB). Free memory was 137.6 MB in the beginning and 163.9 MB in the end (delta: -26.3 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 61 ProgramPointsBefore, 22 ProgramPointsAfterwards, 56 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 350 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1165 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 49 SDtfs, 32 SDslu, 45 SDs, 0 SdLazy, 31 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 778 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...