/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-18 00:05:50,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-18 00:05:50,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-18 00:05:50,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-18 00:05:50,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-18 00:05:50,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-18 00:05:50,855 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-18 00:05:50,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-18 00:05:50,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-18 00:05:50,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-18 00:05:50,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-18 00:05:50,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-18 00:05:50,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-18 00:05:50,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-18 00:05:50,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-18 00:05:50,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-18 00:05:50,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-18 00:05:50,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-18 00:05:50,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-18 00:05:50,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-18 00:05:50,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-18 00:05:50,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-18 00:05:50,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-18 00:05:50,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-18 00:05:50,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-18 00:05:50,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-18 00:05:50,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-18 00:05:50,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-18 00:05:50,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-18 00:05:50,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-18 00:05:50,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-18 00:05:50,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-18 00:05:50,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-18 00:05:50,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-18 00:05:50,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-18 00:05:50,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-18 00:05:50,895 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-18 00:05:50,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-18 00:05:50,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-18 00:05:50,925 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-18 00:05:50,925 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-18 00:05:50,926 INFO L138 SettingsManager]: * Use SBE=true [2020-09-18 00:05:50,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-18 00:05:50,926 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-18 00:05:50,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-18 00:05:50,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-18 00:05:50,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-18 00:05:50,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-18 00:05:50,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-18 00:05:50,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-18 00:05:50,928 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-18 00:05:50,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-18 00:05:50,928 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-18 00:05:50,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-18 00:05:50,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-18 00:05:50,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-18 00:05:50,929 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-18 00:05:50,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-18 00:05:50,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:05:50,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-18 00:05:50,930 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-18 00:05:50,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-18 00:05:50,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-18 00:05:50,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-18 00:05:50,931 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-18 00:05:50,931 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-18 00:05:50,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-18 00:05:50,931 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-18 00:05:51,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-18 00:05:51,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-18 00:05:51,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-18 00:05:51,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-18 00:05:51,487 INFO L275 PluginConnector]: CDTParser initialized [2020-09-18 00:05:51,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-18 00:05:51,570 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d3c8d49/0aabfccc5cc54d8484041223e2453bd0/FLAG952be546b [2020-09-18 00:05:52,264 INFO L306 CDTParser]: Found 1 translation units. [2020-09-18 00:05:52,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-09-18 00:05:52,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d3c8d49/0aabfccc5cc54d8484041223e2453bd0/FLAG952be546b [2020-09-18 00:05:52,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d3c8d49/0aabfccc5cc54d8484041223e2453bd0 [2020-09-18 00:05:52,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-18 00:05:52,440 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-18 00:05:52,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-18 00:05:52,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-18 00:05:52,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-18 00:05:52,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:05:52" (1/1) ... [2020-09-18 00:05:52,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52697317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:52, skipping insertion in model container [2020-09-18 00:05:52,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:05:52" (1/1) ... [2020-09-18 00:05:52,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-18 00:05:52,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-18 00:05:53,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:05:53,077 INFO L203 MainTranslator]: Completed pre-run [2020-09-18 00:05:53,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-18 00:05:53,244 INFO L208 MainTranslator]: Completed translation [2020-09-18 00:05:53,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53 WrapperNode [2020-09-18 00:05:53,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-18 00:05:53,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-18 00:05:53,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-18 00:05:53,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-18 00:05:53,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-18 00:05:53,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-18 00:05:53,309 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-18 00:05:53,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-18 00:05:53,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... [2020-09-18 00:05:53,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-18 00:05:53,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-18 00:05:53,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-18 00:05:53,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-18 00:05:53,355 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-18 00:05:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-18 00:05:53,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-18 00:05:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-18 00:05:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-18 00:05:53,435 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-18 00:05:53,435 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-18 00:05:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-18 00:05:53,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-18 00:05:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-18 00:05:53,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-18 00:05:53,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-18 00:05:53,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-18 00:05:53,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-18 00:05:53,440 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-18 00:05:53,834 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-18 00:05:53,835 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-18 00:05:53,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:05:53 BoogieIcfgContainer [2020-09-18 00:05:53,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-18 00:05:53,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-18 00:05:53,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-18 00:05:53,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-18 00:05:53,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:05:52" (1/3) ... [2020-09-18 00:05:53,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e29ff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:05:53, skipping insertion in model container [2020-09-18 00:05:53,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:05:53" (2/3) ... [2020-09-18 00:05:53,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e29ff06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:05:53, skipping insertion in model container [2020-09-18 00:05:53,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:05:53" (3/3) ... [2020-09-18 00:05:53,851 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-09-18 00:05:53,864 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-18 00:05:53,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-18 00:05:53,875 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-18 00:05:53,876 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-18 00:05:53,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,909 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,910 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,911 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,912 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,912 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,913 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,914 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,914 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,914 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,930 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,930 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,934 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,934 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,934 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-18 00:05:53,961 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-18 00:05:53,990 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-18 00:05:53,990 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-18 00:05:53,990 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-18 00:05:53,990 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-18 00:05:53,991 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-18 00:05:53,991 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-18 00:05:53,991 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-18 00:05:53,991 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-18 00:05:54,015 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-09-18 00:05:54,017 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:05:54,070 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:05:54,071 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:05:54,082 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:05:54,085 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-09-18 00:05:54,115 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-09-18 00:05:54,116 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-18 00:05:54,116 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-09-18 00:05:54,119 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-09-18 00:05:54,120 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-18 00:05:55,556 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-09-18 00:05:55,719 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-09-18 00:05:55,763 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-09-18 00:05:55,764 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-09-18 00:05:55,768 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-09-18 00:05:55,798 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-09-18 00:05:55,800 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-09-18 00:05:55,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-18 00:05:55,811 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:55,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:55,812 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:55,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:55,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-09-18 00:05:55,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:55,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928892742] [2020-09-18 00:05:55,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:56,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:56,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928892742] [2020-09-18 00:05:56,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:56,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-18 00:05:56,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [901333168] [2020-09-18 00:05:56,127 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:56,132 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:56,153 INFO L274 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-09-18 00:05:56,154 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:56,156 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:56,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:05:56,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:56,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:05:56,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:05:56,183 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-09-18 00:05:56,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:56,223 INFO L93 Difference]: Finished difference Result 266 states and 752 transitions. [2020-09-18 00:05:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:05:56,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-09-18 00:05:56,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:56,246 INFO L225 Difference]: With dead ends: 266 [2020-09-18 00:05:56,246 INFO L226 Difference]: Without dead ends: 202 [2020-09-18 00:05:56,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:05:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-09-18 00:05:56,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-09-18 00:05:56,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-18 00:05:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-09-18 00:05:56,327 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 8 [2020-09-18 00:05:56,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:56,329 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-09-18 00:05:56,329 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:05:56,329 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-09-18 00:05:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-18 00:05:56,331 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:56,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:56,332 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-18 00:05:56,332 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:56,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:56,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1613616234, now seen corresponding path program 1 times [2020-09-18 00:05:56,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:56,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238441990] [2020-09-18 00:05:56,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:56,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238441990] [2020-09-18 00:05:56,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:56,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:05:56,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1782441631] [2020-09-18 00:05:56,431 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:56,433 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:56,438 INFO L274 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-09-18 00:05:56,438 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:56,451 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:56,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:05:56,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:56,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:05:56,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:05:56,456 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 4 states. [2020-09-18 00:05:56,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:56,489 INFO L93 Difference]: Finished difference Result 254 states and 666 transitions. [2020-09-18 00:05:56,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:05:56,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-18 00:05:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:56,492 INFO L225 Difference]: With dead ends: 254 [2020-09-18 00:05:56,492 INFO L226 Difference]: Without dead ends: 190 [2020-09-18 00:05:56,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:05:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-09-18 00:05:56,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2020-09-18 00:05:56,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-09-18 00:05:56,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 502 transitions. [2020-09-18 00:05:56,511 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 502 transitions. Word has length 10 [2020-09-18 00:05:56,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:56,511 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 502 transitions. [2020-09-18 00:05:56,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:05:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 502 transitions. [2020-09-18 00:05:56,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-18 00:05:56,513 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:56,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:56,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-18 00:05:56,514 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:56,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:56,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1111108671, now seen corresponding path program 1 times [2020-09-18 00:05:56,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:56,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144049347] [2020-09-18 00:05:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:56,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144049347] [2020-09-18 00:05:56,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:56,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-18 00:05:56,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [719465623] [2020-09-18 00:05:56,603 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:56,605 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:56,606 INFO L274 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-09-18 00:05:56,607 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:56,652 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:56,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:05:56,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:56,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:05:56,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:05:56,654 INFO L87 Difference]: Start difference. First operand 190 states and 502 transitions. Second operand 4 states. [2020-09-18 00:05:56,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:56,689 INFO L93 Difference]: Finished difference Result 286 states and 722 transitions. [2020-09-18 00:05:56,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-18 00:05:56,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-18 00:05:56,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:56,691 INFO L225 Difference]: With dead ends: 286 [2020-09-18 00:05:56,691 INFO L226 Difference]: Without dead ends: 178 [2020-09-18 00:05:56,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:05:56,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-09-18 00:05:56,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2020-09-18 00:05:56,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-18 00:05:56,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 376 transitions. [2020-09-18 00:05:56,704 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 376 transitions. Word has length 11 [2020-09-18 00:05:56,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:56,704 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 376 transitions. [2020-09-18 00:05:56,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:05:56,704 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 376 transitions. [2020-09-18 00:05:56,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:05:56,706 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:56,706 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:56,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-18 00:05:56,707 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:56,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:56,707 INFO L82 PathProgramCache]: Analyzing trace with hash -143018253, now seen corresponding path program 1 times [2020-09-18 00:05:56,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:56,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332009214] [2020-09-18 00:05:56,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:56,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:56,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332009214] [2020-09-18 00:05:56,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:56,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:05:56,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2051335230] [2020-09-18 00:05:56,780 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:56,781 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:56,783 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 29 transitions. [2020-09-18 00:05:56,784 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:56,818 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:56,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:05:56,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:56,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:05:56,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:05:56,819 INFO L87 Difference]: Start difference. First operand 154 states and 376 transitions. Second operand 4 states. [2020-09-18 00:05:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:56,842 INFO L93 Difference]: Finished difference Result 214 states and 514 transitions. [2020-09-18 00:05:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:05:56,843 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-18 00:05:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:56,844 INFO L225 Difference]: With dead ends: 214 [2020-09-18 00:05:56,844 INFO L226 Difference]: Without dead ends: 150 [2020-09-18 00:05:56,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:05:56,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-09-18 00:05:56,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-09-18 00:05:56,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-09-18 00:05:56,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 362 transitions. [2020-09-18 00:05:56,853 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 362 transitions. Word has length 12 [2020-09-18 00:05:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:56,854 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 362 transitions. [2020-09-18 00:05:56,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:05:56,854 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 362 transitions. [2020-09-18 00:05:56,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-18 00:05:56,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:56,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:56,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-18 00:05:56,856 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:56,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:56,857 INFO L82 PathProgramCache]: Analyzing trace with hash -178767453, now seen corresponding path program 2 times [2020-09-18 00:05:56,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:56,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743588372] [2020-09-18 00:05:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:56,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743588372] [2020-09-18 00:05:56,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:56,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:05:56,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1602573788] [2020-09-18 00:05:56,955 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:56,956 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:56,958 INFO L274 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-09-18 00:05:56,959 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:56,976 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:56,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-18 00:05:56,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:56,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-18 00:05:56,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:05:56,978 INFO L87 Difference]: Start difference. First operand 150 states and 362 transitions. Second operand 3 states. [2020-09-18 00:05:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:56,992 INFO L93 Difference]: Finished difference Result 170 states and 402 transitions. [2020-09-18 00:05:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-18 00:05:56,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-09-18 00:05:56,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:56,994 INFO L225 Difference]: With dead ends: 170 [2020-09-18 00:05:56,994 INFO L226 Difference]: Without dead ends: 68 [2020-09-18 00:05:56,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-18 00:05:56,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-18 00:05:56,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-18 00:05:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-18 00:05:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-09-18 00:05:56,998 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-09-18 00:05:56,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:56,999 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-09-18 00:05:56,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-18 00:05:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-09-18 00:05:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-18 00:05:57,000 INFO L414 BasicCegarLoop]: Found error trace [2020-09-18 00:05:57,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-18 00:05:57,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-18 00:05:57,000 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-18 00:05:57,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-18 00:05:57,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-09-18 00:05:57,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-18 00:05:57,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189421477] [2020-09-18 00:05:57,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-18 00:05:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-18 00:05:57,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-18 00:05:57,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189421477] [2020-09-18 00:05:57,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-18 00:05:57,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-18 00:05:57,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1271420854] [2020-09-18 00:05:57,054 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-18 00:05:57,056 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-18 00:05:57,060 INFO L274 McrAutomatonBuilder]: Finished intersection with 33 states and 53 transitions. [2020-09-18 00:05:57,060 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-18 00:05:57,088 INFO L409 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-18 00:05:57,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-18 00:05:57,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-18 00:05:57,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-18 00:05:57,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-18 00:05:57,089 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-09-18 00:05:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-18 00:05:57,105 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-09-18 00:05:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-18 00:05:57,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-18 00:05:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-18 00:05:57,106 INFO L225 Difference]: With dead ends: 56 [2020-09-18 00:05:57,106 INFO L226 Difference]: Without dead ends: 0 [2020-09-18 00:05:57,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-18 00:05:57,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-18 00:05:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-18 00:05:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-18 00:05:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-18 00:05:57,108 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-09-18 00:05:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-18 00:05:57,108 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-18 00:05:57,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-18 00:05:57,108 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-18 00:05:57,108 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-18 00:05:57,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-18 00:05:57,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:05:57 BasicIcfg [2020-09-18 00:05:57,114 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-18 00:05:57,117 INFO L168 Benchmark]: Toolchain (without parser) took 4681.51 ms. Allocated memory was 141.0 MB in the beginning and 246.9 MB in the end (delta: 105.9 MB). Free memory was 102.8 MB in the beginning and 185.1 MB in the end (delta: -82.2 MB). Peak memory consumption was 23.7 MB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,118 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.40 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 161.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.99 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,126 INFO L168 Benchmark]: Boogie Preprocessor took 41.01 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,127 INFO L168 Benchmark]: RCFGBuilder took 490.74 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 135.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2020-09-18 00:05:57,128 INFO L168 Benchmark]: TraceAbstraction took 3271.73 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.2 MB in the beginning and 185.1 MB in the end (delta: -49.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-18 00:05:57,141 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 804.40 ms. Allocated memory was 141.0 MB in the beginning and 203.9 MB in the end (delta: 62.9 MB). Free memory was 102.2 MB in the beginning and 161.5 MB in the end (delta: -59.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.99 ms. Allocated memory is still 203.9 MB. Free memory was 161.5 MB in the beginning and 159.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.01 ms. Allocated memory is still 203.9 MB. Free memory was 159.5 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.74 ms. Allocated memory is still 203.9 MB. Free memory was 157.6 MB in the beginning and 135.9 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3271.73 ms. Allocated memory was 203.9 MB in the beginning and 246.9 MB in the end (delta: 43.0 MB). Free memory was 135.2 MB in the beginning and 185.1 MB in the end (delta: -49.8 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: 1.7s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 653 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 117 SDtfs, 82 SDslu, 101 SDs, 0 SdLazy, 44 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 24 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1654 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...