/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/safe007_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:01:12,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:01:12,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:01:12,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:01:12,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:01:12,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:01:12,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:01:12,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:01:12,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:01:12,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:01:12,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:01:12,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:01:12,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:01:12,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:01:12,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:01:12,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:01:12,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:01:12,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:01:12,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:01:12,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:01:12,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:01:12,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:01:12,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:01:12,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:01:12,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 01:01:12,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:01:12,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:01:12,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:01:12,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:01:12,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:01:12,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:01:12,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:01:12,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:01:12,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:01:12,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:01:12,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:01:12,461 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 [2020-10-06 01:01:12,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:01:12,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:01:12,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:01:12,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:01:12,486 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:01:12,486 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:01:12,486 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:01:12,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:01:12,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:01:12,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:01:12,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:01:12,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:01:12,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:01:12,488 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:01:12,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:01:12,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:01:12,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:01:12,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:01:12,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:01:12,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:01:12,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:01:12,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:01:12,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:01:12,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:01:12,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:01:12,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:01:12,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:01:12,491 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:01:12,491 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:01:12,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:01:12,491 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:01:12,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:01:12,803 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:01:12,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:01:12,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:01:12,809 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:01:12,810 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-10-06 01:01:12,886 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce38224ee/95a1fe198c9c490b86dd7522cd9210b7/FLAG9083fc2fc [2020-10-06 01:01:13,359 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:01:13,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc.i [2020-10-06 01:01:13,374 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce38224ee/95a1fe198c9c490b86dd7522cd9210b7/FLAG9083fc2fc [2020-10-06 01:01:13,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce38224ee/95a1fe198c9c490b86dd7522cd9210b7 [2020-10-06 01:01:13,726 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:01:13,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:01:13,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:13,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:01:13,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:01:13,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:13" (1/1) ... [2020-10-06 01:01:13,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fc379b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:13, skipping insertion in model container [2020-10-06 01:01:13,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:01:13" (1/1) ... [2020-10-06 01:01:13,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:01:13,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:01:14,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:14,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:01:14,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:01:14,532 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:01:14,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14 WrapperNode [2020-10-06 01:01:14,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:01:14,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:14,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:01:14,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:01:14,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:01:14,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:01:14,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:01:14,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:01:14,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... [2020-10-06 01:01:14,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:01:14,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:01:14,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:01:14,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:01:14,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:01:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:01:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:01:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:01:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:01:14,725 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:01:14,725 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:01:14,726 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:01:14,726 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:01:14,727 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:01:14,727 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:01:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:01:14,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:01:14,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:01:14,730 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:01:15,090 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:01:15,090 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-06 01:01:15,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:15 BoogieIcfgContainer [2020-10-06 01:01:15,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:01:15,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:01:15,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:01:15,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:01:15,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:01:13" (1/3) ... [2020-10-06 01:01:15,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7da57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:15, skipping insertion in model container [2020-10-06 01:01:15,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:01:14" (2/3) ... [2020-10-06 01:01:15,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a7da57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:01:15, skipping insertion in model container [2020-10-06 01:01:15,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:01:15" (3/3) ... [2020-10-06 01:01:15,102 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc.i [2020-10-06 01:01:15,111 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:01:15,112 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:01:15,119 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-06 01:01:15,120 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:01:15,147 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,148 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,148 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,149 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,149 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,150 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,151 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,151 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,152 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,153 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,153 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,158 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,158 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,158 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,167 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,171 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,171 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:01:15,186 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-06 01:01:15,206 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:01:15,206 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:01:15,206 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:01:15,206 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:01:15,206 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:01:15,207 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:01:15,207 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:01:15,207 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:01:15,223 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:15,225 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:15,270 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-06 01:01:15,270 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:15,275 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:15,278 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-06 01:01:15,300 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-06 01:01:15,300 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:01:15,301 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-06 01:01:15,303 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-10-06 01:01:15,304 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:01:16,435 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-10-06 01:01:16,517 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2463 [2020-10-06 01:01:16,517 INFO L214 etLargeBlockEncoding]: Total number of compositions: 57 [2020-10-06 01:01:16,521 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-06 01:01:16,547 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-06 01:01:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-06 01:01:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-06 01:01:16,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:16,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:16,558 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:16,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:16,564 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-06 01:01:16,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:16,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069899937] [2020-10-06 01:01:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:16,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:16,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069899937] [2020-10-06 01:01:16,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:16,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:16,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [304335551] [2020-10-06 01:01:16,755 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:16,757 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:16,771 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-06 01:01:16,772 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:16,776 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:16,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-06 01:01:16,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:16,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-06 01:01:16,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:16,792 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-06 01:01:16,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:16,819 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-06 01:01:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-06 01:01:16,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-06 01:01:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:16,837 INFO L225 Difference]: With dead ends: 362 [2020-10-06 01:01:16,837 INFO L226 Difference]: Without dead ends: 298 [2020-10-06 01:01:16,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-06 01:01:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-06 01:01:16,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-06 01:01:16,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-06 01:01:16,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-06 01:01:16,918 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-06 01:01:16,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:16,919 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-06 01:01:16,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-06 01:01:16,920 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-06 01:01:16,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:01:16,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:16,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:16,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:01:16,922 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:16,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:16,923 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-06 01:01:16,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:16,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281900460] [2020-10-06 01:01:16,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:17,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:17,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281900460] [2020-10-06 01:01:17,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:17,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:17,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [252886218] [2020-10-06 01:01:17,055 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:17,056 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:17,058 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:01:17,058 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:17,058 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:17,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:17,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:17,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:17,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:17,061 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-06 01:01:17,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:17,109 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-06 01:01:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:17,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-06 01:01:17,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:17,113 INFO L225 Difference]: With dead ends: 330 [2020-10-06 01:01:17,113 INFO L226 Difference]: Without dead ends: 266 [2020-10-06 01:01:17,114 INFO L675 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 [2020-10-06 01:01:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-06 01:01:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-06 01:01:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-06 01:01:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-06 01:01:17,139 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-06 01:01:17,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:17,139 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-06 01:01:17,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-06 01:01:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:01:17,141 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:17,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:17,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:01:17,142 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:17,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:17,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1345064228, now seen corresponding path program 1 times [2020-10-06 01:01:17,144 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:17,144 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100052529] [2020-10-06 01:01:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:17,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100052529] [2020-10-06 01:01:17,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:17,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:01:17,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1508002836] [2020-10-06 01:01:17,218 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:17,219 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:17,220 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 12 transitions. [2020-10-06 01:01:17,220 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:17,229 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:17,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:01:17,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:17,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:01:17,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:01:17,231 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 4 states. [2020-10-06 01:01:17,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:17,256 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-06 01:01:17,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:01:17,257 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 01:01:17,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:17,259 INFO L225 Difference]: With dead ends: 290 [2020-10-06 01:01:17,259 INFO L226 Difference]: Without dead ends: 242 [2020-10-06 01:01:17,260 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 [2020-10-06 01:01:17,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-06 01:01:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-06 01:01:17,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-06 01:01:17,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-06 01:01:17,276 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-06 01:01:17,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:17,276 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-06 01:01:17,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:01:17,276 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-06 01:01:17,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:01:17,278 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:17,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:17,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:01:17,279 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:17,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:17,279 INFO L82 PathProgramCache]: Analyzing trace with hash -635370963, now seen corresponding path program 1 times [2020-10-06 01:01:17,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:17,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176608760] [2020-10-06 01:01:17,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:17,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:17,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176608760] [2020-10-06 01:01:17,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:17,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:17,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2130462728] [2020-10-06 01:01:17,387 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:17,389 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:17,391 INFO L258 McrAutomatonBuilder]: Finished intersection with 18 states and 24 transitions. [2020-10-06 01:01:17,391 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:17,440 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:17,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:17,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:17,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:17,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:17,441 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-10-06 01:01:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:17,487 INFO L93 Difference]: Finished difference Result 302 states and 803 transitions. [2020-10-06 01:01:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:17,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-06 01:01:17,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:17,489 INFO L225 Difference]: With dead ends: 302 [2020-10-06 01:01:17,489 INFO L226 Difference]: Without dead ends: 146 [2020-10-06 01:01:17,490 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:17,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-06 01:01:17,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-06 01:01:17,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-06 01:01:17,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-06 01:01:17,496 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 11 [2020-10-06 01:01:17,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:17,497 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-06 01:01:17,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:17,497 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-06 01:01:17,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:01:17,499 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:17,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:17,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:01:17,499 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:17,500 INFO L82 PathProgramCache]: Analyzing trace with hash 257080554, now seen corresponding path program 1 times [2020-10-06 01:01:17,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:17,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017117891] [2020-10-06 01:01:17,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:17,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017117891] [2020-10-06 01:01:17,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:17,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:17,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1552670938] [2020-10-06 01:01:17,562 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:17,563 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:17,567 INFO L258 McrAutomatonBuilder]: Finished intersection with 34 states and 56 transitions. [2020-10-06 01:01:17,568 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:17,656 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:17,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:17,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:17,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:17,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:17,658 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 5 states. [2020-10-06 01:01:17,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:17,732 INFO L93 Difference]: Finished difference Result 188 states and 451 transitions. [2020-10-06 01:01:17,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:17,733 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 01:01:17,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:17,734 INFO L225 Difference]: With dead ends: 188 [2020-10-06 01:01:17,734 INFO L226 Difference]: Without dead ends: 74 [2020-10-06 01:01:17,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-06 01:01:17,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-06 01:01:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-06 01:01:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-06 01:01:17,740 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 13 [2020-10-06 01:01:17,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:17,740 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-06 01:01:17,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:17,741 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-06 01:01:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:01:17,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:01:17,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:01:17,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:01:17,742 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:01:17,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:01:17,742 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-06 01:01:17,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:01:17,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785473976] [2020-10-06 01:01:17,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:01:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:01:17,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:01:17,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785473976] [2020-10-06 01:01:17,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:01:17,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:01:17,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1562028221] [2020-10-06 01:01:17,815 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:01:17,817 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:01:17,819 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 24 transitions. [2020-10-06 01:01:17,819 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:01:17,830 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:01:17,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 01:01:17,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:01:17,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 01:01:17,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:01:17,831 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-06 01:01:17,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:01:17,870 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-06 01:01:17,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-06 01:01:17,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-06 01:01:17,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:01:17,871 INFO L225 Difference]: With dead ends: 62 [2020-10-06 01:01:17,871 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:01:17,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-06 01:01:17,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:01:17,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:01:17,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:01:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:01:17,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 01:01:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:01:17,873 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:01:17,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 01:01:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:01:17,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:01:17,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:01:17,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:01:17 BasicIcfg [2020-10-06 01:01:17,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:01:17,880 INFO L168 Benchmark]: Toolchain (without parser) took 4152.17 ms. Allocated memory was 141.0 MB in the beginning and 244.8 MB in the end (delta: 103.8 MB). Free memory was 101.0 MB in the beginning and 183.1 MB in the end (delta: -82.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,881 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.92 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 162.3 MB in the end (delta: -61.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.41 ms. Allocated memory is still 206.6 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,884 INFO L168 Benchmark]: Boogie Preprocessor took 37.99 ms. Allocated memory is still 206.6 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,884 INFO L168 Benchmark]: RCFGBuilder took 436.65 ms. Allocated memory is still 206.6 MB. Free memory was 158.5 MB in the beginning and 135.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:01:17,885 INFO L168 Benchmark]: TraceAbstraction took 2783.82 ms. Allocated memory was 206.6 MB in the beginning and 244.8 MB in the end (delta: 38.3 MB). Free memory was 135.8 MB in the beginning and 183.1 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-06 01:01:17,889 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 805.92 ms. Allocated memory was 141.0 MB in the beginning and 206.6 MB in the end (delta: 65.5 MB). Free memory was 100.8 MB in the beginning and 162.3 MB in the end (delta: -61.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 82.41 ms. Allocated memory is still 206.6 MB. Free memory was 162.3 MB in the beginning and 159.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.99 ms. Allocated memory is still 206.6 MB. Free memory was 159.7 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 436.65 ms. Allocated memory is still 206.6 MB. Free memory was 158.5 MB in the beginning and 135.8 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2783.82 ms. Allocated memory was 206.6 MB in the beginning and 244.8 MB in the end (delta: 38.3 MB). Free memory was 135.8 MB in the beginning and 183.1 MB in the end (delta: -47.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 79 ProgramPointsBefore, 32 ProgramPointsAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 668 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2463 CheckedPairsTotal, 57 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, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 133 SDtfs, 127 SDslu, 171 SDs, 0 SdLazy, 40 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 2035 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...