/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-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:02:57,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:02:57,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:02:57,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:02:57,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:02:57,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:02:57,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:02:57,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:02:57,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:02:57,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:02:57,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:02:57,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:02:57,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:02:57,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:02:57,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:02:57,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:02:57,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:02:57,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:02:57,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:02:57,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:02:57,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:02:57,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:02:57,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:02:57,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:02:57,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 05:02:57,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 05:02:57,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 05:02:57,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 05:02:57,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 05:02:57,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 05:02:57,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:02:57,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:02:57,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:02:57,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:02:57,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:02:57,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:02:57,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:02:57,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:02:57,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:02:57,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:02:57,459 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:02:57,460 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-SemanticLooper.epf [2020-10-16 05:02:57,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:02:57,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:02:57,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:02:57,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:02:57,496 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:02:57,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:02:57,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:02:57,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:02:57,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:02:57,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:02:57,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:02:57,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:02:57,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:02:57,498 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:02:57,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:02:57,499 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:02:57,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:02:57,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:02:57,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:02:57,499 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:02:57,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:02:57,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:02:57,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:02:57,500 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:02:57,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:02:57,501 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:02:57,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:02:57,501 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:02:57,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:02:57,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:02:57,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:02:57,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:02:57,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:02:57,799 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:02:57,800 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-10-16 05:02:57,883 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83111697f/41a196cfd00b4810b4a444ba88c76025/FLAG6d50a67d9 [2020-10-16 05:02:58,404 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:02:58,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.oepc.i [2020-10-16 05:02:58,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83111697f/41a196cfd00b4810b4a444ba88c76025/FLAG6d50a67d9 [2020-10-16 05:02:58,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83111697f/41a196cfd00b4810b4a444ba88c76025 [2020-10-16 05:02:58,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:02:58,703 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:02:58,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:02:58,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:02:58,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:02:58,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:02:58" (1/1) ... [2020-10-16 05:02:58,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533a647f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:58, skipping insertion in model container [2020-10-16 05:02:58,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:02:58" (1/1) ... [2020-10-16 05:02:58,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:02:58,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:02:59,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:02:59,264 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:02:59,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:02:59,414 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:02:59,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59 WrapperNode [2020-10-16 05:02:59,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:02:59,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:02:59,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:02:59,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:02:59,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:02:59,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:02:59,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:02:59,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:02:59,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (1/1) ... [2020-10-16 05:02:59,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:02:59,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:02:59,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:02:59,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:02:59,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (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 05:02:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 05:02:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 05:02:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 05:02:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 05:02:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:02:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:02:59,564 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 05:02:59,925 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:02:59,925 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 05:02:59,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:02:59 BoogieIcfgContainer [2020-10-16 05:02:59,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:02:59,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:02:59,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:02:59,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:02:59,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:02:58" (1/3) ... [2020-10-16 05:02:59,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0abffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:02:59, skipping insertion in model container [2020-10-16 05:02:59,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:59" (2/3) ... [2020-10-16 05:02:59,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0abffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:02:59, skipping insertion in model container [2020-10-16 05:02:59,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:02:59" (3/3) ... [2020-10-16 05:02:59,939 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.oepc.i [2020-10-16 05:02:59,951 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:02:59,959 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 05:02:59,960 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:02:59,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,988 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,988 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,989 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,989 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,990 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,990 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,990 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,991 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,991 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,992 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,993 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:02:59,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,008 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,010 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,011 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:03:00,029 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 05:03:00,051 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:03:00,051 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:03:00,051 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:03:00,051 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:03:00,051 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:03:00,051 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:03:00,052 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:03:00,052 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:03:00,063 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:03:00,102 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-16 05:03:00,103 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:00,108 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. [2020-10-16 05:03:00,109 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 70 transitions, 155 flow [2020-10-16 05:03:00,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:00,117 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:03:00,120 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:00,122 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:00,123 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 65 places, 56 transitions, 121 flow [2020-10-16 05:03:00,141 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-16 05:03:00,142 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:00,143 INFO L80 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 56 events. 1/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2020-10-16 05:03:00,145 INFO L117 LiptonReduction]: Number of co-enabled transitions 864 [2020-10-16 05:03:01,532 INFO L132 LiptonReduction]: Checked pairs total: 1693 [2020-10-16 05:03:01,532 INFO L134 LiptonReduction]: Total number of compositions: 43 [2020-10-16 05:03:01,535 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1420 [2020-10-16 05:03:01,543 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2020-10-16 05:03:01,543 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:01,544 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:01,545 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:01,545 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:01,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:01,551 INFO L82 PathProgramCache]: Analyzing trace with hash 158172579, now seen corresponding path program 1 times [2020-10-16 05:03:01,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:01,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318988001] [2020-10-16 05:03:01,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:01,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:01,775 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 05:03:01,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318988001] [2020-10-16 05:03:01,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:01,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:03:01,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580347926] [2020-10-16 05:03:01,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:01,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:01,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:01,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:01,809 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 113 [2020-10-16 05:03:01,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states. [2020-10-16 05:03:01,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:01,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 113 [2020-10-16 05:03:01,813 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:01,837 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:03:01,837 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:03:01,837 INFO L80 FinitePrefix]: Finished finitePrefix Result has 31 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 3/20 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:03:01,839 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 05:03:01,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 17 transitions, 49 flow [2020-10-16 05:03:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2020-10-16 05:03:01,857 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8849557522123894 [2020-10-16 05:03:01,858 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 300 transitions. [2020-10-16 05:03:01,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 300 transitions. [2020-10-16 05:03:01,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:01,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 300 transitions. [2020-10-16 05:03:01,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:01,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:01,876 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:01,878 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 300 transitions. [2020-10-16 05:03:01,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 17 transitions, 49 flow [2020-10-16 05:03:01,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 17 transitions, 46 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 05:03:01,886 INFO L241 Difference]: Finished difference. Result has 27 places, 17 transitions, 48 flow [2020-10-16 05:03:01,888 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=27, PETRI_TRANSITIONS=17} [2020-10-16 05:03:01,889 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2020-10-16 05:03:01,890 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 17 transitions, 48 flow [2020-10-16 05:03:01,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:01,890 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:01,890 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:01,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:03:01,891 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:01,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:01,891 INFO L82 PathProgramCache]: Analyzing trace with hash 607157492, now seen corresponding path program 1 times [2020-10-16 05:03:01,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:01,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026226551] [2020-10-16 05:03:01,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:01,979 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 05:03:01,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026226551] [2020-10-16 05:03:01,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:01,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:01,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341387455] [2020-10-16 05:03:01,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:01,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:01,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:01,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:01,985 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 113 [2020-10-16 05:03:01,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states. [2020-10-16 05:03:01,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:01,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 113 [2020-10-16 05:03:01,986 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,017 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:03:02,018 INFO L130 PetriNetUnfolder]: For 5/12 co-relation queries the response was YES. [2020-10-16 05:03:02,018 INFO L80 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 22 events. 0/22 cut-off events. For 5/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:03:02,019 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 05:03:02,019 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 18 transitions, 63 flow [2020-10-16 05:03:02,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:03:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:03:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2020-10-16 05:03:02,023 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8296460176991151 [2020-10-16 05:03:02,024 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 375 transitions. [2020-10-16 05:03:02,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 375 transitions. [2020-10-16 05:03:02,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,025 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 375 transitions. [2020-10-16 05:03:02,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:03:02,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:03:02,029 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:03:02,029 INFO L185 Difference]: Start difference. First operand has 27 places, 17 transitions, 48 flow. Second operand 4 states and 375 transitions. [2020-10-16 05:03:02,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 18 transitions, 63 flow [2020-10-16 05:03:02,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 18 transitions, 57 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:02,031 INFO L241 Difference]: Finished difference. Result has 30 places, 17 transitions, 58 flow [2020-10-16 05:03:02,031 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=30, PETRI_TRANSITIONS=17} [2020-10-16 05:03:02,032 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 3 predicate places. [2020-10-16 05:03:02,032 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 17 transitions, 58 flow [2020-10-16 05:03:02,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:02,033 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,033 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 05:03:02,033 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,034 INFO L82 PathProgramCache]: Analyzing trace with hash 539312677, now seen corresponding path program 1 times [2020-10-16 05:03:02,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781817034] [2020-10-16 05:03:02,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,108 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 05:03:02,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781817034] [2020-10-16 05:03:02,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 05:03:02,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346947669] [2020-10-16 05:03:02,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:02,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:02,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:02,114 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 113 [2020-10-16 05:03:02,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states. [2020-10-16 05:03:02,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 113 [2020-10-16 05:03:02,115 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,129 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 05:03:02,129 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2020-10-16 05:03:02,129 INFO L80 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 17 events. 0/17 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 05:03:02,130 INFO L132 encePairwiseOnDemand]: 110/113 looper letters, 1 selfloop transitions, 2 changer transitions 0/17 dead transitions. [2020-10-16 05:03:02,130 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:02,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:02,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2020-10-16 05:03:02,133 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8613569321533924 [2020-10-16 05:03:02,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2020-10-16 05:03:02,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2020-10-16 05:03:02,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2020-10-16 05:03:02,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:02,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:02,136 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:02,137 INFO L185 Difference]: Start difference. First operand has 30 places, 17 transitions, 58 flow. Second operand 3 states and 292 transitions. [2020-10-16 05:03:02,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:02,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 17 transitions, 52 flow, removed 2 selfloop flow, removed 4 redundant places. [2020-10-16 05:03:02,139 INFO L241 Difference]: Finished difference. Result has 29 places, 17 transitions, 54 flow [2020-10-16 05:03:02,139 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=29, PETRI_TRANSITIONS=17} [2020-10-16 05:03:02,139 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 2 predicate places. [2020-10-16 05:03:02,139 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 17 transitions, 54 flow [2020-10-16 05:03:02,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:02,140 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,140 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 05:03:02,140 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,141 INFO L82 PathProgramCache]: Analyzing trace with hash 658078901, now seen corresponding path program 1 times [2020-10-16 05:03:02,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70680268] [2020-10-16 05:03:02,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,202 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 05:03:02,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70680268] [2020-10-16 05:03:02,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:02,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672400393] [2020-10-16 05:03:02,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:02,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:02,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:02,207 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2020-10-16 05:03:02,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states. [2020-10-16 05:03:02,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2020-10-16 05:03:02,208 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,250 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2020-10-16 05:03:02,251 INFO L130 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2020-10-16 05:03:02,251 INFO L80 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 0/22 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2020-10-16 05:03:02,251 INFO L132 encePairwiseOnDemand]: 109/113 looper letters, 1 selfloop transitions, 3 changer transitions 1/18 dead transitions. [2020-10-16 05:03:02,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 18 transitions, 69 flow [2020-10-16 05:03:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 05:03:02,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 05:03:02,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 371 transitions. [2020-10-16 05:03:02,254 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8207964601769911 [2020-10-16 05:03:02,254 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 371 transitions. [2020-10-16 05:03:02,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 371 transitions. [2020-10-16 05:03:02,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 371 transitions. [2020-10-16 05:03:02,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 05:03:02,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 05:03:02,257 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 05:03:02,258 INFO L185 Difference]: Start difference. First operand has 29 places, 17 transitions, 54 flow. Second operand 4 states and 371 transitions. [2020-10-16 05:03:02,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 18 transitions, 69 flow [2020-10-16 05:03:02,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 18 transitions, 63 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:02,259 INFO L241 Difference]: Finished difference. Result has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:02,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=64, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2020-10-16 05:03:02,260 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2020-10-16 05:03:02,260 INFO L481 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 64 flow [2020-10-16 05:03:02,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:02,260 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,260 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 05:03:02,261 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,261 INFO L82 PathProgramCache]: Analyzing trace with hash 461677915, now seen corresponding path program 1 times [2020-10-16 05:03:02,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743287291] [2020-10-16 05:03:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,352 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 05:03:02,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743287291] [2020-10-16 05:03:02,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:02,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416745694] [2020-10-16 05:03:02,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 05:03:02,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 05:03:02,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 05:03:02,356 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:02,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 64 flow. Second operand 4 states. [2020-10-16 05:03:02,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:02,357 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,405 INFO L129 PetriNetUnfolder]: 28/69 cut-off events. [2020-10-16 05:03:02,405 INFO L130 PetriNetUnfolder]: For 131/142 co-relation queries the response was YES. [2020-10-16 05:03:02,406 INFO L80 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 69 events. 28/69 cut-off events. For 131/142 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 205 event pairs, 12 based on Foata normal form. 9/73 useless extension candidates. Maximal degree in co-relation 163. Up to 45 conditions per place. [2020-10-16 05:03:02,407 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 4 changer transitions 7/27 dead transitions. [2020-10-16 05:03:02,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 116 flow [2020-10-16 05:03:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 05:03:02,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 05:03:02,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 423 transitions. [2020-10-16 05:03:02,410 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7486725663716814 [2020-10-16 05:03:02,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 423 transitions. [2020-10-16 05:03:02,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 423 transitions. [2020-10-16 05:03:02,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,411 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 423 transitions. [2020-10-16 05:03:02,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 05:03:02,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 05:03:02,413 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 05:03:02,413 INFO L185 Difference]: Start difference. First operand has 32 places, 17 transitions, 64 flow. Second operand 5 states and 423 transitions. [2020-10-16 05:03:02,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 116 flow [2020-10-16 05:03:02,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 100 flow, removed 3 selfloop flow, removed 5 redundant places. [2020-10-16 05:03:02,416 INFO L241 Difference]: Finished difference. Result has 34 places, 20 transitions, 84 flow [2020-10-16 05:03:02,416 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2020-10-16 05:03:02,416 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 7 predicate places. [2020-10-16 05:03:02,416 INFO L481 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 84 flow [2020-10-16 05:03:02,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 05:03:02,417 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,417 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 05:03:02,417 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1107418127, now seen corresponding path program 1 times [2020-10-16 05:03:02,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270291083] [2020-10-16 05:03:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,494 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 05:03:02,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270291083] [2020-10-16 05:03:02,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 05:03:02,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016621272] [2020-10-16 05:03:02,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 05:03:02,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 05:03:02,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 05:03:02,498 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:02,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 84 flow. Second operand 5 states. [2020-10-16 05:03:02,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:02,498 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,556 INFO L129 PetriNetUnfolder]: 16/50 cut-off events. [2020-10-16 05:03:02,556 INFO L130 PetriNetUnfolder]: For 71/114 co-relation queries the response was YES. [2020-10-16 05:03:02,557 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 50 events. 16/50 cut-off events. For 71/114 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 2 based on Foata normal form. 17/65 useless extension candidates. Maximal degree in co-relation 166. Up to 35 conditions per place. [2020-10-16 05:03:02,557 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 5 selfloop transitions, 7 changer transitions 7/30 dead transitions. [2020-10-16 05:03:02,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 180 flow [2020-10-16 05:03:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 05:03:02,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 05:03:02,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2020-10-16 05:03:02,560 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7477876106194691 [2020-10-16 05:03:02,560 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 507 transitions. [2020-10-16 05:03:02,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 507 transitions. [2020-10-16 05:03:02,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 507 transitions. [2020-10-16 05:03:02,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 05:03:02,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 05:03:02,564 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 05:03:02,564 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 84 flow. Second operand 6 states and 507 transitions. [2020-10-16 05:03:02,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 180 flow [2020-10-16 05:03:02,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 174 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 05:03:02,567 INFO L241 Difference]: Finished difference. Result has 38 places, 23 transitions, 134 flow [2020-10-16 05:03:02,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2020-10-16 05:03:02,567 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2020-10-16 05:03:02,567 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 134 flow [2020-10-16 05:03:02,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 05:03:02,568 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,568 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 05:03:02,568 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1334626881, now seen corresponding path program 1 times [2020-10-16 05:03:02,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335840072] [2020-10-16 05:03:02,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,640 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 05:03:02,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335840072] [2020-10-16 05:03:02,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 05:03:02,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528847954] [2020-10-16 05:03:02,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 05:03:02,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 05:03:02,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 05:03:02,645 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 113 [2020-10-16 05:03:02,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 134 flow. Second operand 6 states. [2020-10-16 05:03:02,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 113 [2020-10-16 05:03:02,646 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,710 INFO L129 PetriNetUnfolder]: 7/32 cut-off events. [2020-10-16 05:03:02,710 INFO L130 PetriNetUnfolder]: For 90/124 co-relation queries the response was YES. [2020-10-16 05:03:02,710 INFO L80 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 32 events. 7/32 cut-off events. For 90/124 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 16/47 useless extension candidates. Maximal degree in co-relation 124. Up to 20 conditions per place. [2020-10-16 05:03:02,711 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 2 selfloop transitions, 10 changer transitions 4/27 dead transitions. [2020-10-16 05:03:02,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 202 flow [2020-10-16 05:03:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 05:03:02,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 05:03:02,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2020-10-16 05:03:02,714 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7395701643489254 [2020-10-16 05:03:02,714 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 585 transitions. [2020-10-16 05:03:02,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 585 transitions. [2020-10-16 05:03:02,715 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 585 transitions. [2020-10-16 05:03:02,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 05:03:02,718 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 05:03:02,718 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 05:03:02,718 INFO L185 Difference]: Start difference. First operand has 38 places, 23 transitions, 134 flow. Second operand 7 states and 585 transitions. [2020-10-16 05:03:02,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 202 flow [2020-10-16 05:03:02,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 166 flow, removed 14 selfloop flow, removed 4 redundant places. [2020-10-16 05:03:02,721 INFO L241 Difference]: Finished difference. Result has 41 places, 23 transitions, 136 flow [2020-10-16 05:03:02,722 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=41, PETRI_TRANSITIONS=23} [2020-10-16 05:03:02,722 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2020-10-16 05:03:02,722 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 23 transitions, 136 flow [2020-10-16 05:03:02,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 05:03:02,722 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:03:02,723 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 05:03:02,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 05:03:02,723 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:03:02,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:03:02,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1041895041, now seen corresponding path program 1 times [2020-10-16 05:03:02,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:03:02,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107375441] [2020-10-16 05:03:02,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:03:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:03:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:03:02,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107375441] [2020-10-16 05:03:02,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:03:02,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 05:03:02,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915556023] [2020-10-16 05:03:02,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 05:03:02,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:03:02,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 05:03:02,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 05:03:02,755 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 113 [2020-10-16 05:03:02,755 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states. [2020-10-16 05:03:02,755 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:03:02,755 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 113 [2020-10-16 05:03:02,755 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:03:02,764 INFO L129 PetriNetUnfolder]: 5/25 cut-off events. [2020-10-16 05:03:02,764 INFO L130 PetriNetUnfolder]: For 46/53 co-relation queries the response was YES. [2020-10-16 05:03:02,765 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 25 events. 5/25 cut-off events. For 46/53 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 2/26 useless extension candidates. Maximal degree in co-relation 78. Up to 11 conditions per place. [2020-10-16 05:03:02,765 INFO L132 encePairwiseOnDemand]: 111/113 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2020-10-16 05:03:02,765 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 22 transitions, 132 flow [2020-10-16 05:03:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 05:03:02,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 05:03:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2020-10-16 05:03:02,767 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8525073746312685 [2020-10-16 05:03:02,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 289 transitions. [2020-10-16 05:03:02,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 289 transitions. [2020-10-16 05:03:02,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:03:02,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 289 transitions. [2020-10-16 05:03:02,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 05:03:02,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 05:03:02,770 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 05:03:02,770 INFO L185 Difference]: Start difference. First operand has 41 places, 23 transitions, 136 flow. Second operand 3 states and 289 transitions. [2020-10-16 05:03:02,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 22 transitions, 132 flow [2020-10-16 05:03:02,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 98 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-16 05:03:02,772 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2020-10-16 05:03:02,772 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2020-10-16 05:03:02,772 INFO L342 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2020-10-16 05:03:02,772 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2020-10-16 05:03:02,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 05:03:02,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 05:03:02,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:03:02 BasicIcfg [2020-10-16 05:03:02,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:03:02,780 INFO L168 Benchmark]: Toolchain (without parser) took 4076.38 ms. Allocated memory was 250.1 MB in the beginning and 367.5 MB in the end (delta: 117.4 MB). Free memory was 202.9 MB in the beginning and 256.0 MB in the end (delta: -53.0 MB). Peak memory consumption was 64.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,781 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 250.1 MB. Free memory is still 223.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:03:02,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.22 ms. Allocated memory was 250.1 MB in the beginning and 309.9 MB in the end (delta: 59.8 MB). Free memory was 202.9 MB in the beginning and 265.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.60 ms. Allocated memory is still 309.9 MB. Free memory was 265.1 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,783 INFO L168 Benchmark]: Boogie Preprocessor took 24.66 ms. Allocated memory is still 309.9 MB. Free memory was 262.6 MB in the beginning and 260.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,784 INFO L168 Benchmark]: RCFGBuilder took 435.12 ms. Allocated memory is still 309.9 MB. Free memory was 260.1 MB in the beginning and 238.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,785 INFO L168 Benchmark]: TraceAbstraction took 2848.13 ms. Allocated memory was 309.9 MB in the beginning and 367.5 MB in the end (delta: 57.7 MB). Free memory was 238.2 MB in the beginning and 256.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 14.2 GB. [2020-10-16 05:03:02,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 250.1 MB. Free memory is still 223.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 710.22 ms. Allocated memory was 250.1 MB in the beginning and 309.9 MB in the end (delta: 59.8 MB). Free memory was 202.9 MB in the beginning and 265.1 MB in the end (delta: -62.2 MB). Peak memory consumption was 30.6 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 52.60 ms. Allocated memory is still 309.9 MB. Free memory was 265.1 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.66 ms. Allocated memory is still 309.9 MB. Free memory was 262.6 MB in the beginning and 260.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 435.12 ms. Allocated memory is still 309.9 MB. Free memory was 260.1 MB in the beginning and 238.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2848.13 ms. Allocated memory was 309.9 MB in the beginning and 367.5 MB in the end (delta: 57.7 MB). Free memory was 238.2 MB in the beginning and 256.0 MB in the end (delta: -17.7 MB). Peak memory consumption was 39.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 609 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 65 PlacesBefore, 27 PlacesAfterwards, 56 TransitionsBefore, 18 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, 1693 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, 69 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: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 24 SDtfs, 11 SDslu, 13 SDs, 0 SdLazy, 101 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred 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, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3037 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...