/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/safe028_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 01:50:24,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 01:50:24,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 01:50:24,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 01:50:24,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 01:50:24,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 01:50:24,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 01:50:24,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 01:50:24,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 01:50:24,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 01:50:24,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 01:50:24,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 01:50:24,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 01:50:24,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 01:50:24,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 01:50:24,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 01:50:24,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 01:50:24,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 01:50:24,114 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 01:50:24,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 01:50:24,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 01:50:24,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 01:50:24,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 01:50:24,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 01:50:24,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 01:50:24,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 01:50:24,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 01:50:24,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 01:50:24,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 01:50:24,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 01:50:24,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 01:50:24,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 01:50:24,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 01:50:24,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 01:50:24,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 01:50:24,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 01:50:24,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 01:50:24,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 01:50:24,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 01:50:24,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 01:50:24,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 01:50:24,161 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 01:50:24,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 01:50:24,162 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 01:50:24,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 01:50:24,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 01:50:24,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 01:50:24,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 01:50:24,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 01:50:24,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 01:50:24,163 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 01:50:24,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 01:50:24,163 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 01:50:24,164 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 01:50:24,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 01:50:24,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 01:50:24,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 01:50:24,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 01:50:24,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:50:24,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 01:50:24,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 01:50:24,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 01:50:24,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 01:50:24,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 01:50:24,166 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 01:50:24,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 01:50:24,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 01:50:24,166 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 01:50:24,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 01:50:24,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 01:50:24,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 01:50:24,665 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 01:50:24,666 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 01:50:24,667 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-09-18 01:50:24,752 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c311b0/70dab66f86cb4a36bff959c30b0f68ec/FLAG0632fac7a [2020-09-18 01:50:25,434 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 01:50:25,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc.i [2020-09-18 01:50:25,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c311b0/70dab66f86cb4a36bff959c30b0f68ec/FLAG0632fac7a [2020-09-18 01:50:25,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e67c311b0/70dab66f86cb4a36bff959c30b0f68ec [2020-09-18 01:50:25,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 01:50:25,649 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 01:50:25,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 01:50:25,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 01:50:25,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 01:50:25,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:50:25" (1/1) ... [2020-09-18 01:50:25,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780b8553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:25, skipping insertion in model container [2020-09-18 01:50:25,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 01:50:25" (1/1) ... [2020-09-18 01:50:25,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 01:50:25,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 01:50:26,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:50:26,276 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 01:50:26,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 01:50:26,438 INFO L208 MainTranslator]: Completed translation [2020-09-18 01:50:26,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26 WrapperNode [2020-09-18 01:50:26,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 01:50:26,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 01:50:26,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 01:50:26,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 01:50:26,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 01:50:26,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 01:50:26,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 01:50:26,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 01:50:26,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... [2020-09-18 01:50:26,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 01:50:26,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 01:50:26,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 01:50:26,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 01:50:26,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 01:50:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 01:50:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 01:50:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 01:50:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 01:50:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 01:50:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 01:50:26,622 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 01:50:26,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 01:50:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 01:50:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 01:50:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 01:50:26,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 01:50:26,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 01:50:26,626 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 01:50:27,044 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 01:50:27,044 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 01:50:27,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:50:27 BoogieIcfgContainer [2020-09-18 01:50:27,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 01:50:27,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 01:50:27,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 01:50:27,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 01:50:27,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 01:50:25" (1/3) ... [2020-09-18 01:50:27,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8815b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:50:27, skipping insertion in model container [2020-09-18 01:50:27,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 01:50:26" (2/3) ... [2020-09-18 01:50:27,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8815b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 01:50:27, skipping insertion in model container [2020-09-18 01:50:27,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 01:50:27" (3/3) ... [2020-09-18 01:50:27,060 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc.i [2020-09-18 01:50:27,072 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 01:50:27,072 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 01:50:27,083 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 01:50:27,084 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 01:50:27,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,115 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,115 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,116 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,116 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,118 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,119 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,119 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,120 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,120 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,125 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,125 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,126 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,126 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,136 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,136 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,140 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 01:50:27,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 01:50:27,202 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 01:50:27,202 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 01:50:27,202 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 01:50:27,202 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 01:50:27,203 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 01:50:27,203 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 01:50:27,203 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 01:50:27,203 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 01:50:27,222 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:27,224 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:27,271 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 01:50:27,272 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:50:27,278 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-18 01:50:27,281 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-09-18 01:50:27,317 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-09-18 01:50:27,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 01:50:27,318 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-09-18 01:50:27,324 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-09-18 01:50:27,326 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 01:50:28,935 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-09-18 01:50:28,936 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-09-18 01:50:28,941 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-09-18 01:50:28,966 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-09-18 01:50:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-09-18 01:50:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 01:50:28,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:28,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:28,980 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:28,988 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-09-18 01:50:29,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:29,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16071644] [2020-09-18 01:50:29,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:29,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16071644] [2020-09-18 01:50:29,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:29,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 01:50:29,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [921234256] [2020-09-18 01:50:29,259 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:29,262 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:29,281 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 01:50:29,281 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:29,283 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:29,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 01:50:29,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:29,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 01:50:29,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:50:29,307 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-09-18 01:50:29,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:29,346 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-09-18 01:50:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 01:50:29,348 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 01:50:29,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:29,366 INFO L225 Difference]: With dead ends: 214 [2020-09-18 01:50:29,366 INFO L226 Difference]: Without dead ends: 166 [2020-09-18 01:50:29,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 01:50:29,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-09-18 01:50:29,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-09-18 01:50:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-18 01:50:29,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-09-18 01:50:29,435 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-09-18 01:50:29,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:29,436 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-09-18 01:50:29,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 01:50:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-09-18 01:50:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-18 01:50:29,437 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:29,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:29,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 01:50:29,438 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:29,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:29,439 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-09-18 01:50:29,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:29,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811749952] [2020-09-18 01:50:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:29,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:29,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811749952] [2020-09-18 01:50:29,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:29,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:50:29,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [592418611] [2020-09-18 01:50:29,576 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:29,577 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:29,579 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-09-18 01:50:29,579 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:29,597 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:29,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:29,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:29,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:29,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:29,599 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-09-18 01:50:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:29,631 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-09-18 01:50:29,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:29,631 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-09-18 01:50:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:29,633 INFO L225 Difference]: With dead ends: 202 [2020-09-18 01:50:29,633 INFO L226 Difference]: Without dead ends: 130 [2020-09-18 01:50:29,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-09-18 01:50:29,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-09-18 01:50:29,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-09-18 01:50:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-09-18 01:50:29,649 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-09-18 01:50:29,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:29,650 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-09-18 01:50:29,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:29,650 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-09-18 01:50:29,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 01:50:29,651 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:29,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:29,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 01:50:29,652 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:29,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:29,652 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-09-18 01:50:29,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:29,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753543505] [2020-09-18 01:50:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:29,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753543505] [2020-09-18 01:50:29,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:29,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 01:50:29,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1169584088] [2020-09-18 01:50:29,754 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:29,755 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:29,757 INFO L274 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-09-18 01:50:29,757 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:29,797 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:50:29,830 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-09-18 01:50:29,841 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1553#(not (= 3 ~__unbuffered_cnt~0))] [2020-09-18 01:50:29,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-18 01:50:29,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:29,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-18 01:50:29,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:29,843 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-09-18 01:50:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:29,933 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-09-18 01:50:29,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:50:29,935 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-09-18 01:50:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:29,936 INFO L225 Difference]: With dead ends: 121 [2020-09-18 01:50:29,936 INFO L226 Difference]: Without dead ends: 85 [2020-09-18 01:50:29,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:50:29,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-09-18 01:50:29,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-09-18 01:50:29,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-18 01:50:29,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-09-18 01:50:29,944 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-09-18 01:50:29,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:29,945 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-09-18 01:50:29,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-18 01:50:29,945 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-09-18 01:50:29,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 01:50:29,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:29,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:29,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 01:50:29,947 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:29,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:29,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-09-18 01:50:29,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:29,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144957685] [2020-09-18 01:50:29,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:30,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:30,043 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144957685] [2020-09-18 01:50:30,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:30,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-18 01:50:30,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [503857542] [2020-09-18 01:50:30,044 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:30,045 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:30,047 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 25 transitions. [2020-09-18 01:50:30,047 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:30,095 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1855#(<= ~__unbuffered_cnt~0 0)] [2020-09-18 01:50:30,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-18 01:50:30,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:30,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-18 01:50:30,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-18 01:50:30,096 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 7 states. [2020-09-18 01:50:30,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:30,165 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-09-18 01:50:30,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-18 01:50:30,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-09-18 01:50:30,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:30,167 INFO L225 Difference]: With dead ends: 80 [2020-09-18 01:50:30,167 INFO L226 Difference]: Without dead ends: 72 [2020-09-18 01:50:30,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-09-18 01:50:30,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-09-18 01:50:30,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-09-18 01:50:30,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-18 01:50:30,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-09-18 01:50:30,173 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-09-18 01:50:30,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:30,174 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-09-18 01:50:30,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-18 01:50:30,174 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-09-18 01:50:30,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 01:50:30,175 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:30,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:30,176 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 01:50:30,176 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:30,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:30,177 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-09-18 01:50:30,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:30,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585950274] [2020-09-18 01:50:30,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:30,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585950274] [2020-09-18 01:50:30,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:30,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:50:30,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [803190450] [2020-09-18 01:50:30,255 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:30,257 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:30,277 INFO L274 McrAutomatonBuilder]: Finished intersection with 25 states and 32 transitions. [2020-09-18 01:50:30,278 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:30,323 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:30,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:30,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:30,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:30,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:30,324 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-09-18 01:50:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:30,342 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-09-18 01:50:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:30,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-18 01:50:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:30,343 INFO L225 Difference]: With dead ends: 97 [2020-09-18 01:50:30,343 INFO L226 Difference]: Without dead ends: 48 [2020-09-18 01:50:30,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:30,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-18 01:50:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-18 01:50:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-18 01:50:30,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-09-18 01:50:30,347 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-09-18 01:50:30,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:30,348 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-09-18 01:50:30,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-09-18 01:50:30,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-18 01:50:30,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 01:50:30,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 01:50:30,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 01:50:30,349 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 01:50:30,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 01:50:30,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-09-18 01:50:30,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 01:50:30,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432209904] [2020-09-18 01:50:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 01:50:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 01:50:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 01:50:30,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432209904] [2020-09-18 01:50:30,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 01:50:30,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 01:50:30,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [978334895] [2020-09-18 01:50:30,430 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 01:50:30,432 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 01:50:30,437 INFO L274 McrAutomatonBuilder]: Finished intersection with 40 states and 64 transitions. [2020-09-18 01:50:30,437 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 01:50:30,535 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 01:50:30,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 01:50:30,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 01:50:30,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 01:50:30,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 01:50:30,536 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-09-18 01:50:30,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 01:50:30,548 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-09-18 01:50:30,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 01:50:30,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-09-18 01:50:30,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 01:50:30,549 INFO L225 Difference]: With dead ends: 47 [2020-09-18 01:50:30,549 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 01:50:30,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 01:50:30,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 01:50:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 01:50:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 01:50:30,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 01:50:30,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-18 01:50:30,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 01:50:30,551 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 01:50:30,551 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 01:50:30,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 01:50:30,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 01:50:30,552 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 01:50:30,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 01:50:30 BasicIcfg [2020-09-18 01:50:30,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 01:50:30,561 INFO L168 Benchmark]: Toolchain (without parser) took 4914.08 ms. Allocated memory was 146.3 MB in the beginning and 248.0 MB in the end (delta: 101.7 MB). Free memory was 101.0 MB in the beginning and 175.0 MB in the end (delta: -74.0 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,562 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.68 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 159.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.50 ms. Allocated memory is still 203.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,565 INFO L168 Benchmark]: Boogie Preprocessor took 35.56 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,565 INFO L168 Benchmark]: RCFGBuilder took 513.67 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 134.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,566 INFO L168 Benchmark]: TraceAbstraction took 3505.75 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.7 MB in the beginning and 175.0 MB in the end (delta: -41.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2020-09-18 01:50:30,571 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.3 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.68 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 100.3 MB in the beginning and 159.8 MB in the end (delta: -59.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.50 ms. Allocated memory is still 203.4 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.56 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 513.67 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 134.4 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3505.75 ms. Allocated memory was 203.4 MB in the beginning and 248.0 MB in the end (delta: 44.6 MB). Free memory was 133.7 MB in the beginning and 175.0 MB in the end (delta: -41.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 627 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 107 SDtfs, 117 SDslu, 151 SDs, 0 SdLazy, 85 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...