/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 22:30:10,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 22:30:10,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 22:30:10,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 22:30:10,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 22:30:10,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 22:30:10,073 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 22:30:10,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 22:30:10,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 22:30:10,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 22:30:10,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 22:30:10,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 22:30:10,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 22:30:10,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 22:30:10,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 22:30:10,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 22:30:10,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 22:30:10,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 22:30:10,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 22:30:10,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 22:30:10,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 22:30:10,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 22:30:10,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 22:30:10,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 22:30:10,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 22:30:10,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 22:30:10,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 22:30:10,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 22:30:10,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 22:30:10,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 22:30:10,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 22:30:10,120 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 22:30:10,120 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 22:30:10,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 22:30:10,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 22:30:10,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 22:30:10,125 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-18 22:30:10,146 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 22:30:10,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 22:30:10,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 22:30:10,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 22:30:10,148 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 22:30:10,148 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 22:30:10,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 22:30:10,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 22:30:10,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 22:30:10,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 22:30:10,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 22:30:10,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 22:30:10,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 22:30:10,150 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 22:30:10,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 22:30:10,150 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 22:30:10,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 22:30:10,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 22:30:10,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 22:30:10,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 22:30:10,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 22:30:10,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:30:10,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 22:30:10,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 22:30:10,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 22:30:10,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 22:30:10,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 22:30:10,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-18 22:30:10,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 22:30:10,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 22:30:10,420 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 22:30:10,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 22:30:10,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 22:30:10,451 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 22:30:10,451 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 22:30:10,452 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-18 22:30:10,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aec24778/d3b379b7fb6c48899586c8641e53653e/FLAGacf46d0b4 [2019-12-18 22:30:11,076 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 22:30:11,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.oepc.i [2019-12-18 22:30:11,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aec24778/d3b379b7fb6c48899586c8641e53653e/FLAGacf46d0b4 [2019-12-18 22:30:11,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aec24778/d3b379b7fb6c48899586c8641e53653e [2019-12-18 22:30:11,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 22:30:11,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 22:30:11,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 22:30:11,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 22:30:11,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 22:30:11,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:30:11" (1/1) ... [2019-12-18 22:30:11,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d5173bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:11, skipping insertion in model container [2019-12-18 22:30:11,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:30:11" (1/1) ... [2019-12-18 22:30:11,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 22:30:11,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 22:30:11,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:30:11,924 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 22:30:11,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 22:30:12,061 INFO L208 MainTranslator]: Completed translation [2019-12-18 22:30:12,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12 WrapperNode [2019-12-18 22:30:12,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 22:30:12,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 22:30:12,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 22:30:12,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 22:30:12,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 22:30:12,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 22:30:12,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 22:30:12,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 22:30:12,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... [2019-12-18 22:30:12,141 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 22:30:12,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 22:30:12,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 22:30:12,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 22:30:12,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 22:30:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 22:30:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 22:30:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 22:30:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 22:30:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 22:30:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 22:30:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 22:30:12,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 22:30:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 22:30:12,197 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 22:30:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 22:30:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 22:30:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 22:30:12,201 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 22:30:12,540 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 22:30:12,540 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 22:30:12,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:30:12 BoogieIcfgContainer [2019-12-18 22:30:12,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 22:30:12,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 22:30:12,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 22:30:12,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 22:30:12,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:30:11" (1/3) ... [2019-12-18 22:30:12,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115e9365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:30:12, skipping insertion in model container [2019-12-18 22:30:12,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:30:12" (2/3) ... [2019-12-18 22:30:12,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115e9365 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:30:12, skipping insertion in model container [2019-12-18 22:30:12,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:30:12" (3/3) ... [2019-12-18 22:30:12,550 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_pso.oepc.i [2019-12-18 22:30:12,559 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 22:30:12,559 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 22:30:12,565 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 22:30:12,566 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 22:30:12,593 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,594 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,594 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,594 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,595 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,595 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,596 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,596 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,596 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,596 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,597 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,597 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,597 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,598 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,598 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,599 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,602 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,603 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,603 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,603 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,610 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,610 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,610 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,611 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,619 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,619 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,619 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,619 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 22:30:12,635 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 22:30:12,656 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 22:30:12,656 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 22:30:12,656 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 22:30:12,657 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 22:30:12,657 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 22:30:12,657 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 22:30:12,657 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 22:30:12,657 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 22:30:12,670 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 22:30:12,672 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 22:30:12,712 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 22:30:12,712 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:30:12,720 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:30:12,725 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 22:30:12,744 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 22:30:12,744 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 22:30:12,746 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 22:30:12,748 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 22:30:12,749 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-18 22:30:14,068 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-18 22:30:14,068 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 22:30:14,072 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 22:30:14,083 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 22:30:14,086 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 22:30:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 22:30:14,093 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:14,094 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:14,094 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:14,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:14,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-18 22:30:14,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:14,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027615782] [2019-12-18 22:30:14,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:14,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027615782] [2019-12-18 22:30:14,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:14,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:30:14,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556783603] [2019-12-18 22:30:14,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:14,391 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:14,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:14,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:14,409 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 22:30:14,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:14,468 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-18 22:30:14,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:14,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 22:30:14,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:14,498 INFO L225 Difference]: With dead ends: 44 [2019-12-18 22:30:14,498 INFO L226 Difference]: Without dead ends: 36 [2019-12-18 22:30:14,503 INFO L631 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 [2019-12-18 22:30:14,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-18 22:30:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-18 22:30:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-18 22:30:14,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-18 22:30:14,547 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-18 22:30:14,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:14,549 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-18 22:30:14,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:14,549 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-18 22:30:14,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:30:14,550 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:14,550 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:14,551 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:14,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:14,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-18 22:30:14,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:14,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728922797] [2019-12-18 22:30:14,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:14,659 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728922797] [2019-12-18 22:30:14,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:14,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 22:30:14,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421071231] [2019-12-18 22:30:14,661 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:14,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:14,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:14,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:14,663 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-18 22:30:14,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:14,670 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-18 22:30:14,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:14,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:30:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:14,672 INFO L225 Difference]: With dead ends: 34 [2019-12-18 22:30:14,672 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 22:30:14,673 INFO L631 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 [2019-12-18 22:30:14,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 22:30:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 22:30:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 22:30:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 22:30:14,684 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-18 22:30:14,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:14,685 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 22:30:14,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 22:30:14,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 22:30:14,686 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:14,686 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:14,686 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:14,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:14,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-18 22:30:14,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:14,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733997658] [2019-12-18 22:30:14,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:14,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:14,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733997658] [2019-12-18 22:30:14,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:14,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:14,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283550919] [2019-12-18 22:30:14,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 22:30:14,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:14,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 22:30:14,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:14,766 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-18 22:30:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:14,783 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 22:30:14,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 22:30:14,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-18 22:30:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:14,786 INFO L225 Difference]: With dead ends: 36 [2019-12-18 22:30:14,786 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 22:30:14,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 22:30:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 22:30:14,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 22:30:14,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 22:30:14,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 22:30:14,791 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 22:30:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:14,791 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 22:30:14,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 22:30:14,792 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 22:30:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 22:30:14,792 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:14,793 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:14,793 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:14,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:14,793 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-18 22:30:14,793 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:14,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888391106] [2019-12-18 22:30:14,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:14,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888391106] [2019-12-18 22:30:14,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:14,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:14,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481327996] [2019-12-18 22:30:14,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:30:14,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:14,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:30:14,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:30:14,852 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-18 22:30:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:14,890 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-18 22:30:14,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:30:14,890 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 22:30:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:14,891 INFO L225 Difference]: With dead ends: 33 [2019-12-18 22:30:14,891 INFO L226 Difference]: Without dead ends: 21 [2019-12-18 22:30:14,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:30:14,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-18 22:30:14,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-18 22:30:14,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-18 22:30:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-18 22:30:14,897 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-18 22:30:14,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:14,897 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-18 22:30:14,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:30:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-18 22:30:14,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 22:30:14,899 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 22:30:14,899 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 22:30:14,900 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 22:30:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 22:30:14,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-18 22:30:14,901 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 22:30:14,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870907464] [2019-12-18 22:30:14,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 22:30:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 22:30:14,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 22:30:14,987 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870907464] [2019-12-18 22:30:14,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 22:30:14,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 22:30:14,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711949176] [2019-12-18 22:30:14,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 22:30:14,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 22:30:14,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 22:30:14,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 22:30:14,989 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 4 states. [2019-12-18 22:30:15,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 22:30:15,003 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-18 22:30:15,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 22:30:15,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 22:30:15,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 22:30:15,004 INFO L225 Difference]: With dead ends: 20 [2019-12-18 22:30:15,004 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 22:30:15,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 22:30:15,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 22:30:15,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 22:30:15,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 22:30:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 22:30:15,005 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 22:30:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 22:30:15,005 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 22:30:15,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 22:30:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 22:30:15,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 22:30:15,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 10:30:15 BasicIcfg [2019-12-18 22:30:15,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 22:30:15,012 INFO L168 Benchmark]: Toolchain (without parser) took 3616.91 ms. Allocated memory was 145.2 MB in the beginning and 247.5 MB in the end (delta: 102.2 MB). Free memory was 100.0 MB in the beginning and 179.9 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,013 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.24 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 159.2 MB in the end (delta: -59.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,016 INFO L168 Benchmark]: Boogie Preprocessor took 32.92 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,017 INFO L168 Benchmark]: RCFGBuilder took 400.01 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,018 INFO L168 Benchmark]: TraceAbstraction took 2466.16 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.9 MB in the beginning and 179.9 MB in the end (delta: -45.0 MB). Peak memory consumption was 107.3 kB. Max. memory is 7.1 GB. [2019-12-18 22:30:15,022 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 667.24 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.8 MB in the beginning and 159.2 MB in the end (delta: -59.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.98 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.92 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 400.01 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 135.5 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2466.16 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.9 MB in the beginning and 179.9 MB in the end (delta: -45.0 MB). Peak memory consumption was 107.3 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...