/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 01:41:14,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 01:41:14,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 01:41:14,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 01:41:14,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 01:41:14,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 01:41:14,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 01:41:14,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 01:41:14,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 01:41:14,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 01:41:14,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 01:41:14,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 01:41:14,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 01:41:14,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 01:41:14,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 01:41:14,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 01:41:14,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 01:41:14,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 01:41:14,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 01:41:14,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 01:41:14,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 01:41:14,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 01:41:14,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 01:41:14,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 01:41:14,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 01:41:14,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 01:41:14,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 01:41:14,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 01:41:14,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 01:41:14,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 01:41:14,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 01:41:14,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 01:41:14,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 01:41:14,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 01:41:14,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 01:41:14,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 01:41:14,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 01:41:14,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 01:41:14,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 01:41:14,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 01:41:14,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 01:41:14,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-16 01:41:14,480 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 01:41:14,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 01:41:14,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 01:41:14,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 01:41:14,482 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 01:41:14,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 01:41:14,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 01:41:14,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 01:41:14,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 01:41:14,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 01:41:14,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 01:41:14,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 01:41:14,484 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 01:41:14,484 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 01:41:14,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 01:41:14,484 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 01:41:14,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 01:41:14,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 01:41:14,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 01:41:14,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 01:41:14,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 01:41:14,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 01:41:14,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 01:41:14,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 01:41:14,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 01:41:14,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 01:41:14,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 01:41:14,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 01:41:14,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 01:41:14,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 01:41:14,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 01:41:14,849 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 01:41:14,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 01:41:14,859 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 01:41:14,859 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-10-16 01:41:14,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1255e871/44055ed0b15b4d8ebef5dbdd150081d7/FLAG9371a2648 [2020-10-16 01:41:15,451 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 01:41:15,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_pso.opt.i [2020-10-16 01:41:15,466 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1255e871/44055ed0b15b4d8ebef5dbdd150081d7/FLAG9371a2648 [2020-10-16 01:41:15,774 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1255e871/44055ed0b15b4d8ebef5dbdd150081d7 [2020-10-16 01:41:15,785 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 01:41:15,787 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 01:41:15,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 01:41:15,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 01:41:15,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 01:41:15,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:41:15" (1/1) ... [2020-10-16 01:41:15,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3850d8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:15, skipping insertion in model container [2020-10-16 01:41:15,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:41:15" (1/1) ... [2020-10-16 01:41:15,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 01:41:15,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 01:41:16,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:41:16,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 01:41:16,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 01:41:16,487 INFO L208 MainTranslator]: Completed translation [2020-10-16 01:41:16,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16 WrapperNode [2020-10-16 01:41:16,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 01:41:16,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 01:41:16,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 01:41:16,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 01:41:16,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 01:41:16,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 01:41:16,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 01:41:16,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 01:41:16,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (1/1) ... [2020-10-16 01:41:16,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 01:41:16,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 01:41:16,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 01:41:16,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 01:41:16,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (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 [2020-10-16 01:41:16,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 01:41:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 01:41:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 01:41:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 01:41:16,630 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 01:41:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 01:41:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 01:41:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 01:41:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 01:41:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 01:41:16,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 01:41:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 01:41:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 01:41:16,633 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 01:41:16,965 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 01:41:16,965 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 01:41:16,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:41:16 BoogieIcfgContainer [2020-10-16 01:41:16,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 01:41:16,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 01:41:16,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 01:41:16,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 01:41:16,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:41:15" (1/3) ... [2020-10-16 01:41:16,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c29e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:41:16, skipping insertion in model container [2020-10-16 01:41:16,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:41:16" (2/3) ... [2020-10-16 01:41:16,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4c29e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:41:16, skipping insertion in model container [2020-10-16 01:41:16,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:41:16" (3/3) ... [2020-10-16 01:41:16,976 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_pso.opt.i [2020-10-16 01:41:16,987 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 01:41:16,994 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 01:41:16,995 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 01:41:17,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,043 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,043 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,044 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,045 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,045 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,046 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,046 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,047 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,048 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,048 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,049 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,053 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,053 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,054 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,060 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,060 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,063 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,064 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,066 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,067 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,067 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 01:41:17,088 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 01:41:17,109 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 01:41:17,110 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 01:41:17,110 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 01:41:17,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 01:41:17,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 01:41:17,110 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 01:41:17,111 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 01:41:17,111 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 01:41:17,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 01:41:17,168 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-10-16 01:41:17,169 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:41:17,174 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-16 01:41:17,174 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 69 transitions, 153 flow [2020-10-16 01:41:17,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 55 transitions, 119 flow [2020-10-16 01:41:17,182 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 01:41:17,185 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions, 119 flow [2020-10-16 01:41:17,188 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 55 transitions, 119 flow [2020-10-16 01:41:17,188 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 119 flow [2020-10-16 01:41:17,216 INFO L129 PetriNetUnfolder]: 1/55 cut-off events. [2020-10-16 01:41:17,217 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:41:17,220 INFO L80 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 1/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2020-10-16 01:41:17,222 INFO L117 LiptonReduction]: Number of co-enabled transitions 804 [2020-10-16 01:41:18,456 INFO L132 LiptonReduction]: Checked pairs total: 1380 [2020-10-16 01:41:18,457 INFO L134 LiptonReduction]: Total number of compositions: 41 [2020-10-16 01:41:18,460 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1280 [2020-10-16 01:41:18,468 INFO L129 PetriNetUnfolder]: 0/14 cut-off events. [2020-10-16 01:41:18,468 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:41:18,468 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:18,470 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:18,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:18,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:18,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1606569249, now seen corresponding path program 1 times [2020-10-16 01:41:18,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:18,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246229040] [2020-10-16 01:41:18,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:18,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:18,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246229040] [2020-10-16 01:41:18,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:18,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:41:18,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304413521] [2020-10-16 01:41:18,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:41:18,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:18,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:41:18,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:41:18,743 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 110 [2020-10-16 01:41:18,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states. [2020-10-16 01:41:18,746 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:18,746 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 110 [2020-10-16 01:41:18,747 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:18,768 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2020-10-16 01:41:18,768 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 01:41:18,769 INFO L80 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 16 events. 0/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:41:18,770 INFO L132 encePairwiseOnDemand]: 107/110 looper letters, 1 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2020-10-16 01:41:18,770 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 16 transitions, 47 flow [2020-10-16 01:41:18,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:41:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:41:18,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-10-16 01:41:18,787 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2020-10-16 01:41:18,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2020-10-16 01:41:18,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2020-10-16 01:41:18,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:18,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2020-10-16 01:41:18,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:41:18,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:41:18,805 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:41:18,808 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 41 flow. Second operand 3 states and 286 transitions. [2020-10-16 01:41:18,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 16 transitions, 47 flow [2020-10-16 01:41:18,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 16 transitions, 44 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 01:41:18,814 INFO L241 Difference]: Finished difference. Result has 26 places, 16 transitions, 46 flow [2020-10-16 01:41:18,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=16} [2020-10-16 01:41:18,817 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2020-10-16 01:41:18,818 INFO L481 AbstractCegarLoop]: Abstraction has has 26 places, 16 transitions, 46 flow [2020-10-16 01:41:18,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:41:18,818 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:18,818 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:18,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 01:41:18,819 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:18,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:18,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1735983877, now seen corresponding path program 1 times [2020-10-16 01:41:18,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:18,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444258165] [2020-10-16 01:41:18,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:18,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:18,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444258165] [2020-10-16 01:41:18,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:18,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:41:18,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120004157] [2020-10-16 01:41:18,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:41:18,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:18,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:41:18,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:41:18,917 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2020-10-16 01:41:18,917 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 16 transitions, 46 flow. Second operand 4 states. [2020-10-16 01:41:18,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:18,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2020-10-16 01:41:18,918 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:18,954 INFO L129 PetriNetUnfolder]: 5/36 cut-off events. [2020-10-16 01:41:18,955 INFO L130 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2020-10-16 01:41:18,955 INFO L80 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 36 events. 5/36 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 105 event pairs, 1 based on Foata normal form. 5/40 useless extension candidates. Maximal degree in co-relation 64. Up to 7 conditions per place. [2020-10-16 01:41:18,956 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 4 selfloop transitions, 3 changer transitions 1/19 dead transitions. [2020-10-16 01:41:18,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 19 transitions, 71 flow [2020-10-16 01:41:18,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:41:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:41:18,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 362 transitions. [2020-10-16 01:41:18,960 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8227272727272728 [2020-10-16 01:41:18,960 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 362 transitions. [2020-10-16 01:41:18,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 362 transitions. [2020-10-16 01:41:18,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:18,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 362 transitions. [2020-10-16 01:41:18,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:41:18,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:41:18,965 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:41:18,965 INFO L185 Difference]: Start difference. First operand has 26 places, 16 transitions, 46 flow. Second operand 4 states and 362 transitions. [2020-10-16 01:41:18,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 19 transitions, 71 flow [2020-10-16 01:41:18,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 65 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:41:18,966 INFO L241 Difference]: Finished difference. Result has 29 places, 16 transitions, 56 flow [2020-10-16 01:41:18,967 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=56, PETRI_PLACES=29, PETRI_TRANSITIONS=16} [2020-10-16 01:41:18,967 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 3 predicate places. [2020-10-16 01:41:18,968 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 16 transitions, 56 flow [2020-10-16 01:41:18,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:41:18,968 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:18,968 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:18,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 01:41:18,969 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:18,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2019773545, now seen corresponding path program 1 times [2020-10-16 01:41:18,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:18,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259541172] [2020-10-16 01:41:18,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259541172] [2020-10-16 01:41:19,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 01:41:19,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175447919] [2020-10-16 01:41:19,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 01:41:19,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 01:41:19,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 01:41:19,030 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 110 [2020-10-16 01:41:19,030 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 16 transitions, 56 flow. Second operand 3 states. [2020-10-16 01:41:19,030 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,030 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 110 [2020-10-16 01:41:19,031 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,043 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2020-10-16 01:41:19,043 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-16 01:41:19,044 INFO L80 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 16 events. 0/16 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 01:41:19,044 INFO L132 encePairwiseOnDemand]: 107/110 looper letters, 1 selfloop transitions, 2 changer transitions 0/16 dead transitions. [2020-10-16 01:41:19,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 16 transitions, 62 flow [2020-10-16 01:41:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 01:41:19,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 01:41:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2020-10-16 01:41:19,047 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2020-10-16 01:41:19,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2020-10-16 01:41:19,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2020-10-16 01:41:19,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,047 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2020-10-16 01:41:19,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 01:41:19,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 01:41:19,052 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 01:41:19,053 INFO L185 Difference]: Start difference. First operand has 29 places, 16 transitions, 56 flow. Second operand 3 states and 286 transitions. [2020-10-16 01:41:19,053 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 16 transitions, 62 flow [2020-10-16 01:41:19,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 50 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 01:41:19,056 INFO L241 Difference]: Finished difference. Result has 28 places, 16 transitions, 52 flow [2020-10-16 01:41:19,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2020-10-16 01:41:19,056 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2020-10-16 01:41:19,056 INFO L481 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 52 flow [2020-10-16 01:41:19,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 01:41:19,057 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:19,057 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:19,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 01:41:19,057 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:19,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:19,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1326651635, now seen corresponding path program 1 times [2020-10-16 01:41:19,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:19,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048570863] [2020-10-16 01:41:19,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048570863] [2020-10-16 01:41:19,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:41:19,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959236541] [2020-10-16 01:41:19,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:41:19,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:41:19,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:41:19,112 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 110 [2020-10-16 01:41:19,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 52 flow. Second operand 4 states. [2020-10-16 01:41:19,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 110 [2020-10-16 01:41:19,113 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,142 INFO L129 PetriNetUnfolder]: 0/21 cut-off events. [2020-10-16 01:41:19,143 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2020-10-16 01:41:19,143 INFO L80 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 21 events. 0/21 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 2/22 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 01:41:19,144 INFO L132 encePairwiseOnDemand]: 106/110 looper letters, 1 selfloop transitions, 3 changer transitions 1/17 dead transitions. [2020-10-16 01:41:19,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 17 transitions, 67 flow [2020-10-16 01:41:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:41:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:41:19,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 363 transitions. [2020-10-16 01:41:19,147 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.825 [2020-10-16 01:41:19,147 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 363 transitions. [2020-10-16 01:41:19,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 363 transitions. [2020-10-16 01:41:19,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 363 transitions. [2020-10-16 01:41:19,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:41:19,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:41:19,151 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:41:19,151 INFO L185 Difference]: Start difference. First operand has 28 places, 16 transitions, 52 flow. Second operand 4 states and 363 transitions. [2020-10-16 01:41:19,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 17 transitions, 67 flow [2020-10-16 01:41:19,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 17 transitions, 61 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 01:41:19,153 INFO L241 Difference]: Finished difference. Result has 31 places, 16 transitions, 62 flow [2020-10-16 01:41:19,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=62, PETRI_PLACES=31, PETRI_TRANSITIONS=16} [2020-10-16 01:41:19,154 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2020-10-16 01:41:19,154 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 62 flow [2020-10-16 01:41:19,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:41:19,154 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:19,154 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:19,155 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 01:41:19,155 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:19,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:19,155 INFO L82 PathProgramCache]: Analyzing trace with hash 1822825542, now seen corresponding path program 1 times [2020-10-16 01:41:19,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:19,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608927245] [2020-10-16 01:41:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608927245] [2020-10-16 01:41:19,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 01:41:19,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922620936] [2020-10-16 01:41:19,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:41:19,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:41:19,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:41:19,238 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2020-10-16 01:41:19,239 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 62 flow. Second operand 4 states. [2020-10-16 01:41:19,239 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,239 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2020-10-16 01:41:19,240 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,307 INFO L129 PetriNetUnfolder]: 28/68 cut-off events. [2020-10-16 01:41:19,307 INFO L130 PetriNetUnfolder]: For 125/132 co-relation queries the response was YES. [2020-10-16 01:41:19,308 INFO L80 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 68 events. 28/68 cut-off events. For 125/132 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 205 event pairs, 12 based on Foata normal form. 9/71 useless extension candidates. Maximal degree in co-relation 162. Up to 45 conditions per place. [2020-10-16 01:41:19,309 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 5 selfloop transitions, 4 changer transitions 7/26 dead transitions. [2020-10-16 01:41:19,309 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 114 flow [2020-10-16 01:41:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 01:41:19,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 01:41:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2020-10-16 01:41:19,312 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.769090909090909 [2020-10-16 01:41:19,312 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2020-10-16 01:41:19,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2020-10-16 01:41:19,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2020-10-16 01:41:19,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 01:41:19,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 01:41:19,315 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 01:41:19,315 INFO L185 Difference]: Start difference. First operand has 31 places, 16 transitions, 62 flow. Second operand 5 states and 423 transitions. [2020-10-16 01:41:19,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 114 flow [2020-10-16 01:41:19,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 96 flow, removed 3 selfloop flow, removed 6 redundant places. [2020-10-16 01:41:19,317 INFO L241 Difference]: Finished difference. Result has 32 places, 19 transitions, 80 flow [2020-10-16 01:41:19,318 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=80, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2020-10-16 01:41:19,318 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 6 predicate places. [2020-10-16 01:41:19,318 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 80 flow [2020-10-16 01:41:19,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:41:19,318 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:19,319 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:19,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 01:41:19,319 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:19,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:19,319 INFO L82 PathProgramCache]: Analyzing trace with hash 673012169, now seen corresponding path program 1 times [2020-10-16 01:41:19,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:19,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83019540] [2020-10-16 01:41:19,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83019540] [2020-10-16 01:41:19,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:41:19,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884901746] [2020-10-16 01:41:19,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 01:41:19,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 01:41:19,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 01:41:19,402 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2020-10-16 01:41:19,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 80 flow. Second operand 5 states. [2020-10-16 01:41:19,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2020-10-16 01:41:19,403 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,459 INFO L129 PetriNetUnfolder]: 16/49 cut-off events. [2020-10-16 01:41:19,460 INFO L130 PetriNetUnfolder]: For 72/115 co-relation queries the response was YES. [2020-10-16 01:41:19,460 INFO L80 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 49 events. 16/49 cut-off events. For 72/115 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 124 event pairs, 2 based on Foata normal form. 16/63 useless extension candidates. Maximal degree in co-relation 165. Up to 35 conditions per place. [2020-10-16 01:41:19,461 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 5 selfloop transitions, 7 changer transitions 7/29 dead transitions. [2020-10-16 01:41:19,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 29 transitions, 176 flow [2020-10-16 01:41:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 01:41:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 01:41:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2020-10-16 01:41:19,464 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7681818181818182 [2020-10-16 01:41:19,464 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2020-10-16 01:41:19,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2020-10-16 01:41:19,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2020-10-16 01:41:19,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 01:41:19,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 01:41:19,467 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 01:41:19,467 INFO L185 Difference]: Start difference. First operand has 32 places, 19 transitions, 80 flow. Second operand 6 states and 507 transitions. [2020-10-16 01:41:19,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 29 transitions, 176 flow [2020-10-16 01:41:19,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 170 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 01:41:19,470 INFO L241 Difference]: Finished difference. Result has 36 places, 22 transitions, 130 flow [2020-10-16 01:41:19,470 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=130, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2020-10-16 01:41:19,471 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 10 predicate places. [2020-10-16 01:41:19,471 INFO L481 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 130 flow [2020-10-16 01:41:19,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 01:41:19,471 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:19,471 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:19,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 01:41:19,472 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:19,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:19,472 INFO L82 PathProgramCache]: Analyzing trace with hash -625288368, now seen corresponding path program 1 times [2020-10-16 01:41:19,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:19,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650411820] [2020-10-16 01:41:19,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650411820] [2020-10-16 01:41:19,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 01:41:19,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856418505] [2020-10-16 01:41:19,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 01:41:19,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 01:41:19,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 01:41:19,582 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 110 [2020-10-16 01:41:19,582 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 130 flow. Second operand 6 states. [2020-10-16 01:41:19,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 110 [2020-10-16 01:41:19,583 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,683 INFO L129 PetriNetUnfolder]: 7/31 cut-off events. [2020-10-16 01:41:19,683 INFO L130 PetriNetUnfolder]: For 89/121 co-relation queries the response was YES. [2020-10-16 01:41:19,690 INFO L80 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 31 events. 7/31 cut-off events. For 89/121 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 43 event pairs, 0 based on Foata normal form. 14/44 useless extension candidates. Maximal degree in co-relation 122. Up to 20 conditions per place. [2020-10-16 01:41:19,691 INFO L132 encePairwiseOnDemand]: 104/110 looper letters, 2 selfloop transitions, 10 changer transitions 4/26 dead transitions. [2020-10-16 01:41:19,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 26 transitions, 198 flow [2020-10-16 01:41:19,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 01:41:19,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 01:41:19,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2020-10-16 01:41:19,698 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7597402597402597 [2020-10-16 01:41:19,699 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 585 transitions. [2020-10-16 01:41:19,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 585 transitions. [2020-10-16 01:41:19,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 585 transitions. [2020-10-16 01:41:19,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 01:41:19,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 01:41:19,705 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 01:41:19,706 INFO L185 Difference]: Start difference. First operand has 36 places, 22 transitions, 130 flow. Second operand 7 states and 585 transitions. [2020-10-16 01:41:19,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 26 transitions, 198 flow [2020-10-16 01:41:19,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 162 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-16 01:41:19,713 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 132 flow [2020-10-16 01:41:19,713 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=132, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2020-10-16 01:41:19,713 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2020-10-16 01:41:19,714 INFO L481 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 132 flow [2020-10-16 01:41:19,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 01:41:19,714 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 01:41:19,714 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 01:41:19,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 01:41:19,715 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 01:41:19,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 01:41:19,715 INFO L82 PathProgramCache]: Analyzing trace with hash -971568297, now seen corresponding path program 1 times [2020-10-16 01:41:19,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 01:41:19,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444711684] [2020-10-16 01:41:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 01:41:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 01:41:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 01:41:19,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444711684] [2020-10-16 01:41:19,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 01:41:19,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 01:41:19,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399295753] [2020-10-16 01:41:19,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 01:41:19,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 01:41:19,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 01:41:19,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 01:41:19,802 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2020-10-16 01:41:19,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 22 transitions, 132 flow. Second operand 4 states. [2020-10-16 01:41:19,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 01:41:19,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2020-10-16 01:41:19,804 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 01:41:19,833 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2020-10-16 01:41:19,833 INFO L130 PetriNetUnfolder]: For 46/52 co-relation queries the response was YES. [2020-10-16 01:41:19,834 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 24 events. 5/24 cut-off events. For 46/52 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 22 event pairs, 0 based on Foata normal form. 2/25 useless extension candidates. Maximal degree in co-relation 77. Up to 11 conditions per place. [2020-10-16 01:41:19,834 INFO L132 encePairwiseOnDemand]: 107/110 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2020-10-16 01:41:19,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 21 transitions, 130 flow [2020-10-16 01:41:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 01:41:19,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 01:41:19,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 357 transitions. [2020-10-16 01:41:19,838 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8113636363636364 [2020-10-16 01:41:19,838 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 357 transitions. [2020-10-16 01:41:19,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 357 transitions. [2020-10-16 01:41:19,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 01:41:19,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 357 transitions. [2020-10-16 01:41:19,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 01:41:19,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 01:41:19,843 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 01:41:19,843 INFO L185 Difference]: Start difference. First operand has 39 places, 22 transitions, 132 flow. Second operand 4 states and 357 transitions. [2020-10-16 01:41:19,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 21 transitions, 130 flow [2020-10-16 01:41:19,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 21 transitions, 96 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-16 01:41:19,846 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2020-10-16 01:41:19,846 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2020-10-16 01:41:19,846 INFO L342 CegarLoopForPetriNet]: 26 programPoint places, 8 predicate places. [2020-10-16 01:41:19,847 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2020-10-16 01:41:19,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 01:41:19,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 01:41:19,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:41:19 BasicIcfg [2020-10-16 01:41:19,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 01:41:19,856 INFO L168 Benchmark]: Toolchain (without parser) took 4067.96 ms. Allocated memory was 258.5 MB in the beginning and 372.8 MB in the end (delta: 114.3 MB). Free memory was 213.6 MB in the beginning and 274.9 MB in the end (delta: -61.3 MB). Peak memory consumption was 53.0 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,857 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 258.5 MB. Free memory is still 234.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 01:41:19,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.81 ms. Allocated memory was 258.5 MB in the beginning and 330.8 MB in the end (delta: 72.4 MB). Free memory was 213.6 MB in the beginning and 286.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 330.8 MB. Free memory was 286.1 MB in the beginning and 283.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,868 INFO L168 Benchmark]: Boogie Preprocessor took 27.88 ms. Allocated memory is still 330.8 MB. Free memory was 283.6 MB in the beginning and 281.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,869 INFO L168 Benchmark]: RCFGBuilder took 402.18 ms. Allocated memory is still 330.8 MB. Free memory was 281.1 MB in the beginning and 259.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,870 INFO L168 Benchmark]: TraceAbstraction took 2883.45 ms. Allocated memory was 330.8 MB in the beginning and 372.8 MB in the end (delta: 41.9 MB). Free memory was 259.1 MB in the beginning and 274.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 14.2 GB. [2020-10-16 01:41:19,883 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 258.5 MB. Free memory is still 234.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 697.81 ms. Allocated memory was 258.5 MB in the beginning and 330.8 MB in the end (delta: 72.4 MB). Free memory was 213.6 MB in the beginning and 286.1 MB in the end (delta: -72.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 330.8 MB. Free memory was 286.1 MB in the beginning and 283.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.88 ms. Allocated memory is still 330.8 MB. Free memory was 283.6 MB in the beginning and 281.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 402.18 ms. Allocated memory is still 330.8 MB. Free memory was 281.1 MB in the beginning and 259.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2883.45 ms. Allocated memory was 330.8 MB in the beginning and 372.8 MB in the end (delta: 41.9 MB). Free memory was 259.1 MB in the beginning and 274.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 492 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 64 PlacesBefore, 26 PlacesAfterwards, 55 TransitionsBefore, 16 TransitionsAfterwards, 804 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1380 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 21 SDtfs, 15 SDslu, 15 SDs, 0 SdLazy, 105 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 2831 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...