/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/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:34:42,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:34:42,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:34:42,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:34:42,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:34:42,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:34:42,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:34:42,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:34:42,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:34:42,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:34:42,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:34:42,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:34:42,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:34:42,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:34:42,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:34:42,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:34:42,930 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:34:42,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:34:42,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:34:42,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:34:42,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:34:42,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:34:42,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:34:42,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:34:42,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:34:42,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:34:42,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:34:42,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:34:42,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:34:42,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:34:42,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:34:42,962 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:34:42,962 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:34:42,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:34:42,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:34:42,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:34:42,966 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 00:34:43,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:34:43,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:34:43,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:34:43,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:34:43,022 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:34:43,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:34:43,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:34:43,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:34:43,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:34:43,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:34:43,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:34:43,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:34:43,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:34:43,025 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:34:43,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:34:43,025 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:34:43,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:34:43,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:34:43,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:34:43,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:34:43,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:34:43,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:34:43,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:34:43,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:34:43,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:34:43,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:34:43,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:34:43,028 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:34:43,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:34:43,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:34:43,029 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:34:43,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:34:43,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:34:43,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:34:43,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:34:43,483 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:34:43,484 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-09-18 00:34:43,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c60bde3/cd4ad8bc96ba47ada30a3c2af4b5ce47/FLAGb128b6b18 [2020-09-18 00:34:44,195 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:34:44,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-09-18 00:34:44,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c60bde3/cd4ad8bc96ba47ada30a3c2af4b5ce47/FLAGb128b6b18 [2020-09-18 00:34:44,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c60bde3/cd4ad8bc96ba47ada30a3c2af4b5ce47 [2020-09-18 00:34:44,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:34:44,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:34:44,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:34:44,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:34:44,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:34:44,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:34:44" (1/1) ... [2020-09-18 00:34:44,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462e4a5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:44, skipping insertion in model container [2020-09-18 00:34:44,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:34:44" (1/1) ... [2020-09-18 00:34:44,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:34:44,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:34:45,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:34:45,030 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:34:45,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:34:45,166 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:34:45,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45 WrapperNode [2020-09-18 00:34:45,166 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:34:45,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:34:45,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:34:45,168 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:34:45,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:34:45,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:34:45,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:34:45,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:34:45,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (1/1) ... [2020-09-18 00:34:45,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:34:45,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:34:45,254 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:34:45,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:34:45,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (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 00:34:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:34:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:34:45,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:34:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:34:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:34:45,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:34:45,340 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:34:45,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:34:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:34:45,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:34:45,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:34:45,344 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 00:34:45,661 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:34:45,662 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:34:45,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:34:45 BoogieIcfgContainer [2020-09-18 00:34:45,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:34:45,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:34:45,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:34:45,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:34:45,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:34:44" (1/3) ... [2020-09-18 00:34:45,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b3f1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:34:45, skipping insertion in model container [2020-09-18 00:34:45,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:34:45" (2/3) ... [2020-09-18 00:34:45,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b3f1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:34:45, skipping insertion in model container [2020-09-18 00:34:45,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:34:45" (3/3) ... [2020-09-18 00:34:45,679 INFO L109 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-09-18 00:34:45,691 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:34:45,691 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:34:45,702 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:34:45,703 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:34:45,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,734 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,734 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,735 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,736 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,736 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,737 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,742 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:34:45,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-09-18 00:34:45,802 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:34:45,803 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:34:45,803 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:34:45,803 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:34:45,803 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:34:45,804 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:34:45,804 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:34:45,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:34:45,822 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-09-18 00:34:45,825 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-18 00:34:45,877 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-18 00:34:45,877 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:34:45,882 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-18 00:34:45,885 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-09-18 00:34:45,903 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-09-18 00:34:45,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:34:45,904 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-09-18 00:34:45,906 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 672 [2020-09-18 00:34:45,907 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:34:47,138 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1251 [2020-09-18 00:34:47,139 INFO L214 etLargeBlockEncoding]: Total number of compositions: 49 [2020-09-18 00:34:47,143 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-09-18 00:34:47,159 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-09-18 00:34:47,162 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-09-18 00:34:47,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-18 00:34:47,171 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:34:47,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-09-18 00:34:47,172 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:34:47,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:34:47,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1814584925, now seen corresponding path program 1 times [2020-09-18 00:34:47,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:34:47,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855220652] [2020-09-18 00:34:47,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:34:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:34:47,467 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 00:34:47,468 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855220652] [2020-09-18 00:34:47,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:34:47,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:34:47,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1516701168] [2020-09-18 00:34:47,474 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:34:47,480 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:34:47,509 INFO L274 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-09-18 00:34:47,509 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:34:47,514 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:34:47,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:34:47,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:34:47,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:34:47,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:34:47,537 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-09-18 00:34:47,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:34:47,569 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-09-18 00:34:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:34:47,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-09-18 00:34:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:34:47,589 INFO L225 Difference]: With dead ends: 72 [2020-09-18 00:34:47,590 INFO L226 Difference]: Without dead ends: 56 [2020-09-18 00:34:47,593 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 00:34:47,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-09-18 00:34:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-09-18 00:34:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-09-18 00:34:47,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-09-18 00:34:47,646 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-09-18 00:34:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:34:47,646 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-09-18 00:34:47,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:34:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-09-18 00:34:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-18 00:34:47,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:34:47,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:34:47,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:34:47,648 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:34:47,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:34:47,649 INFO L82 PathProgramCache]: Analyzing trace with hash 417556795, now seen corresponding path program 1 times [2020-09-18 00:34:47,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:34:47,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249560635] [2020-09-18 00:34:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:34:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:34:47,718 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 00:34:47,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249560635] [2020-09-18 00:34:47,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:34:47,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:34:47,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1760307385] [2020-09-18 00:34:47,720 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:34:47,720 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:34:47,724 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 13 transitions. [2020-09-18 00:34:47,724 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:34:47,755 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:34:47,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:34:47,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:34:47,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:34:47,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:34:47,758 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 3 states. [2020-09-18 00:34:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:34:47,765 INFO L93 Difference]: Finished difference Result 53 states and 106 transitions. [2020-09-18 00:34:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:34:47,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-18 00:34:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:34:47,767 INFO L225 Difference]: With dead ends: 53 [2020-09-18 00:34:47,767 INFO L226 Difference]: Without dead ends: 53 [2020-09-18 00:34:47,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 00:34:47,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-18 00:34:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-18 00:34:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-18 00:34:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 106 transitions. [2020-09-18 00:34:47,777 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 106 transitions. Word has length 7 [2020-09-18 00:34:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:34:47,778 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 106 transitions. [2020-09-18 00:34:47,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:34:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 106 transitions. [2020-09-18 00:34:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 00:34:47,779 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:34:47,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:34:47,779 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:34:47,780 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:34:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:34:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash 58787852, now seen corresponding path program 1 times [2020-09-18 00:34:47,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:34:47,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025904908] [2020-09-18 00:34:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:34:47,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:34:47,878 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 00:34:47,878 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025904908] [2020-09-18 00:34:47,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:34:47,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:34:47,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1275867940] [2020-09-18 00:34:47,879 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:34:47,880 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:34:47,883 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 21 transitions. [2020-09-18 00:34:47,883 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:34:47,919 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:34:47,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:34:47,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:34:47,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:34:47,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:34:47,921 INFO L87 Difference]: Start difference. First operand 53 states and 106 transitions. Second operand 4 states. [2020-09-18 00:34:47,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:34:47,946 INFO L93 Difference]: Finished difference Result 60 states and 113 transitions. [2020-09-18 00:34:47,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:34:47,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-09-18 00:34:47,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:34:47,947 INFO L225 Difference]: With dead ends: 60 [2020-09-18 00:34:47,948 INFO L226 Difference]: Without dead ends: 36 [2020-09-18 00:34:47,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 00:34:47,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-09-18 00:34:47,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-09-18 00:34:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-18 00:34:47,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2020-09-18 00:34:47,954 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2020-09-18 00:34:47,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:34:47,955 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2020-09-18 00:34:47,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:34:47,955 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2020-09-18 00:34:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 00:34:47,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:34:47,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:34:47,956 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:34:47,956 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:34:47,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:34:47,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1840071362, now seen corresponding path program 1 times [2020-09-18 00:34:47,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:34:47,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606448960] [2020-09-18 00:34:47,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:34:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:34:48,067 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 00:34:48,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606448960] [2020-09-18 00:34:48,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:34:48,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:34:48,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [717301963] [2020-09-18 00:34:48,069 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:34:48,071 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:34:48,077 INFO L274 McrAutomatonBuilder]: Finished intersection with 17 states and 23 transitions. [2020-09-18 00:34:48,077 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:34:48,104 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:34:48,125 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:34:48,142 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 00:34:48,150 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:34:48,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:34:48,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:34:48,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:34:48,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:34:48,152 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand 4 states. [2020-09-18 00:34:48,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:34:48,188 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2020-09-18 00:34:48,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:34:48,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 00:34:48,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:34:48,189 INFO L225 Difference]: With dead ends: 30 [2020-09-18 00:34:48,189 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:34:48,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 00:34:48,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:34:48,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:34:48,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:34:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:34:48,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-09-18 00:34:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:34:48,191 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:34:48,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:34:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:34:48,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:34:48,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:34:48,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:34:48 BasicIcfg [2020-09-18 00:34:48,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:34:48,200 INFO L168 Benchmark]: Toolchain (without parser) took 3780.44 ms. Allocated memory was 140.0 MB in the beginning and 247.5 MB in the end (delta: 107.5 MB). Free memory was 101.7 MB in the beginning and 168.3 MB in the end (delta: -66.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,201 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.83 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 161.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.03 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,204 INFO L168 Benchmark]: Boogie Preprocessor took 27.99 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,204 INFO L168 Benchmark]: RCFGBuilder took 414.34 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 138.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,206 INFO L168 Benchmark]: TraceAbstraction took 2527.03 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 137.9 MB in the beginning and 168.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-18 00:34:48,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.83 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 161.8 MB in the end (delta: -60.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.03 ms. Allocated memory is still 203.9 MB. Free memory was 161.8 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.99 ms. Allocated memory is still 203.9 MB. Free memory was 159.9 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.34 ms. Allocated memory is still 203.9 MB. Free memory was 158.5 MB in the beginning and 138.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2527.03 ms. Allocated memory was 203.9 MB in the beginning and 247.5 MB in the end (delta: 43.5 MB). Free memory was 137.9 MB in the beginning and 168.3 MB in the end (delta: -30.4 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 60 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 7 FixpointIterations, 12 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 371 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1251 CheckedPairsTotal, 49 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, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 47 SDtfs, 26 SDslu, 38 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 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, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 522 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...