/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:35:32,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:35:32,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:35:32,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:35:32,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:35:32,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:35:32,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:35:32,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:35:32,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:35:32,411 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:35:32,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:35:32,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:35:32,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:35:32,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:35:32,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:35:32,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:35:32,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:35:32,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:35:32,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:35:32,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:35:32,432 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:35:32,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:35:32,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:35:32,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:35:32,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:35:32,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:35:32,450 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:35:32,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:35:32,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:35:32,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:35:32,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:35:32,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:35:32,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:35:32,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:35:32,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:35:32,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:35:32,460 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:35:32,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:35:32,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:35:32,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:35:32,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:35:32,511 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:35:32,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:35:32,511 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:35:32,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:35:32,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:35:32,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:35:32,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:35:32,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:35:32,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:35:32,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:35:32,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:35:32,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:35:32,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:35:32,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:35:32,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:35:32,515 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:35:32,515 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:35:32,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:35:32,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:35:32,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:35:32,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:35:32,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:35:32,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:35:32,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:35:32,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:35:32,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:35:32,518 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:35:32,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:35:32,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:35:32,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:35:32,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:35:32,925 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:35:32,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-04-28 23:35:33,015 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60221e17/148241fcafcd49789886b04ead07e2f2/FLAGe36eaca50 [2021-04-28 23:35:33,691 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:35:33,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i [2021-04-28 23:35:33,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60221e17/148241fcafcd49789886b04ead07e2f2/FLAGe36eaca50 [2021-04-28 23:35:33,954 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60221e17/148241fcafcd49789886b04ead07e2f2 [2021-04-28 23:35:33,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:35:34,015 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:35:34,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:35:34,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:35:34,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:35:34,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:35:33" (1/1) ... [2021-04-28 23:35:34,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@661f1528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34, skipping insertion in model container [2021-04-28 23:35:34,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:35:33" (1/1) ... [2021-04-28 23:35:34,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:35:34,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:35:34,348 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-04-28 23:35:34,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:35:34,561 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:35:34,576 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.opt.i[949,962] [2021-04-28 23:35:34,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:35:34,700 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:35:34,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34 WrapperNode [2021-04-28 23:35:34,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:35:34,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:35:34,702 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:35:34,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:35:34,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:35:34,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:35:34,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:35:34,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:35:34,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (1/1) ... [2021-04-28 23:35:34,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:35:34,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:35:34,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:35:34,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:35:34,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (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 [2021-04-28 23:35:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:35:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:35:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:35:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:35:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:35:34,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:35:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:35:34,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:35:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:35:34,946 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:35:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:35:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:35:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:35:34,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:35:34,948 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:35:35,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:35:35,414 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:35:35,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:35:35 BoogieIcfgContainer [2021-04-28 23:35:35,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:35:35,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:35:35,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:35:35,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:35:35,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:35:33" (1/3) ... [2021-04-28 23:35:35,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7186b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:35:35, skipping insertion in model container [2021-04-28 23:35:35,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:35:34" (2/3) ... [2021-04-28 23:35:35,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7186b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:35:35, skipping insertion in model container [2021-04-28 23:35:35,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:35:35" (3/3) ... [2021-04-28 23:35:35,424 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2021-04-28 23:35:35,431 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:35:35,436 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:35:35,437 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:35:35,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,465 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,466 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,468 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,469 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,470 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,471 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,471 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,471 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,472 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,474 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,475 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,479 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,480 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,480 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,482 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,482 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:35:35,484 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:35:35,506 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:35:35,528 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:35:35,528 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:35:35,528 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:35:35,528 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:35:35,528 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:35:35,529 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:35:35,529 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:35:35,529 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:35:35,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 76 transitions, 167 flow [2021-04-28 23:35:35,585 INFO L129 PetriNetUnfolder]: 2/73 cut-off events. [2021-04-28 23:35:35,586 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:35,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-28 23:35:35,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 76 transitions, 167 flow [2021-04-28 23:35:35,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 61 transitions, 131 flow [2021-04-28 23:35:35,597 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:35,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-28 23:35:35,616 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 61 transitions, 131 flow [2021-04-28 23:35:35,618 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 61 transitions, 131 flow [2021-04-28 23:35:35,640 INFO L129 PetriNetUnfolder]: 1/61 cut-off events. [2021-04-28 23:35:35,640 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:35,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 61 events. 1/61 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. 0/60 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-28 23:35:35,643 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-28 23:35:39,367 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:35:39,524 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-28 23:35:39,691 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-28 23:35:39,991 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:35:40,183 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:35:40,383 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:35:40,565 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:35:40,733 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:35:40,882 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:35:41,050 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:35:41,225 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:35:43,310 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-28 23:35:43,615 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2021-04-28 23:35:44,824 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-28 23:35:44,926 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 23:35:45,136 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2021-04-28 23:35:45,280 INFO L158 LiptonReduction]: Checked pairs total: 5406 [2021-04-28 23:35:45,280 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:35:45,288 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9693 [2021-04-28 23:35:45,324 INFO L129 PetriNetUnfolder]: 0/59 cut-off events. [2021-04-28 23:35:45,324 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:45,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:45,325 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:45,326 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:45,331 INFO L82 PathProgramCache]: Analyzing trace with hash -260371519, now seen corresponding path program 1 times [2021-04-28 23:35:45,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:45,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450318788] [2021-04-28 23:35:45,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:45,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:45,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:45,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450318788] [2021-04-28 23:35:45,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:45,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:35:45,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740170553] [2021-04-28 23:35:45,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:35:45,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:35:45,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:35:45,642 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 167 [2021-04-28 23:35:45,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,650 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:45,650 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 167 [2021-04-28 23:35:45,651 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:45,731 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2021-04-28 23:35:45,732 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:45,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 391 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 77. Up to 18 conditions per place. [2021-04-28 23:35:45,734 INFO L132 encePairwiseOnDemand]: 151/167 looper letters, 1 selfloop transitions, 2 changer transitions 50/75 dead transitions. [2021-04-28 23:35:45,734 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 211 flow [2021-04-28 23:35:45,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:35:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:35:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 412 transitions. [2021-04-28 23:35:45,750 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8223552894211577 [2021-04-28 23:35:45,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 412 transitions. [2021-04-28 23:35:45,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 412 transitions. [2021-04-28 23:35:45,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:45,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 412 transitions. [2021-04-28 23:35:45,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 167.0) internal successors, (668), 4 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,771 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 412 transitions. [2021-04-28 23:35:45,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 211 flow [2021-04-28 23:35:45,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 208 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:35:45,776 INFO L241 Difference]: Finished difference. Result has 80 places, 25 transitions, 64 flow [2021-04-28 23:35:45,779 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=80, PETRI_TRANSITIONS=25} [2021-04-28 23:35:45,779 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2021-04-28 23:35:45,780 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:45,780 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-28 23:35:45,780 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-28 23:35:45,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 64 flow [2021-04-28 23:35:45,785 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-04-28 23:35:45,785 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:45,786 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 51 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-28 23:35:45,786 INFO L146 LiptonReduction]: Number of co-enabled transitions 330 [2021-04-28 23:35:45,805 INFO L158 LiptonReduction]: Checked pairs total: 357 [2021-04-28 23:35:45,805 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:45,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-04-28 23:35:45,808 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 64 flow [2021-04-28 23:35:45,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,808 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:45,809 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:45,809 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:35:45,809 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:45,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:45,810 INFO L82 PathProgramCache]: Analyzing trace with hash 518397480, now seen corresponding path program 1 times [2021-04-28 23:35:45,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:45,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832857564] [2021-04-28 23:35:45,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:45,897 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:45,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:45,906 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:35:45,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:35:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:45,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832857564] [2021-04-28 23:35:45,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:45,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:35:45,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588472155] [2021-04-28 23:35:45,916 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:35:45,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:45,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:35:45,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:35:45,919 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:35:45,920 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,920 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:45,920 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:35:45,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:45,963 INFO L129 PetriNetUnfolder]: 14/88 cut-off events. [2021-04-28 23:35:45,963 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-04-28 23:35:45,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 88 events. 14/88 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 438 event pairs, 1 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 142. Up to 15 conditions per place. [2021-04-28 23:35:45,965 INFO L132 encePairwiseOnDemand]: 161/167 looper letters, 7 selfloop transitions, 7 changer transitions 0/33 dead transitions. [2021-04-28 23:35:45,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 33 transitions, 116 flow [2021-04-28 23:35:45,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:35:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:35:45,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 556 transitions. [2021-04-28 23:35:45,969 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.665868263473054 [2021-04-28 23:35:45,969 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 556 transitions. [2021-04-28 23:35:45,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 556 transitions. [2021-04-28 23:35:45,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:45,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 556 transitions. [2021-04-28 23:35:45,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,976 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:45,976 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 64 flow. Second operand 5 states and 556 transitions. [2021-04-28 23:35:45,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 33 transitions, 116 flow [2021-04-28 23:35:45,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 33 transitions, 108 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:35:45,978 INFO L241 Difference]: Finished difference. Result has 40 places, 30 transitions, 108 flow [2021-04-28 23:35:45,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2021-04-28 23:35:45,979 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -40 predicate places. [2021-04-28 23:35:45,979 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:45,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 30 transitions, 108 flow [2021-04-28 23:35:45,980 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 30 transitions, 108 flow [2021-04-28 23:35:45,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 108 flow [2021-04-28 23:35:45,991 INFO L129 PetriNetUnfolder]: 9/79 cut-off events. [2021-04-28 23:35:45,991 INFO L130 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2021-04-28 23:35:45,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 79 events. 9/79 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 393 event pairs, 3 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 140. Up to 18 conditions per place. [2021-04-28 23:35:45,993 INFO L146 LiptonReduction]: Number of co-enabled transitions 406 [2021-04-28 23:35:46,003 INFO L158 LiptonReduction]: Checked pairs total: 250 [2021-04-28 23:35:46,004 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:46,004 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-04-28 23:35:46,006 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 108 flow [2021-04-28 23:35:46,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:46,006 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:46,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:35:46,007 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:46,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1109572132, now seen corresponding path program 1 times [2021-04-28 23:35:46,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:46,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679311582] [2021-04-28 23:35:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:46,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,075 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:35:46,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:35:46,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:46,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679311582] [2021-04-28 23:35:46,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:46,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:35:46,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609732278] [2021-04-28 23:35:46,087 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:35:46,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:46,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:35:46,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:35:46,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:35:46,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,094 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:46,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:35:46,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:46,137 INFO L129 PetriNetUnfolder]: 9/88 cut-off events. [2021-04-28 23:35:46,138 INFO L130 PetriNetUnfolder]: For 74/112 co-relation queries the response was YES. [2021-04-28 23:35:46,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 88 events. 9/88 cut-off events. For 74/112 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 466 event pairs, 0 based on Foata normal form. 7/65 useless extension candidates. Maximal degree in co-relation 180. Up to 19 conditions per place. [2021-04-28 23:35:46,141 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 7 selfloop transitions, 3 changer transitions 5/33 dead transitions. [2021-04-28 23:35:46,141 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 33 transitions, 153 flow [2021-04-28 23:35:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:35:46,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:35:46,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-28 23:35:46,143 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6631736526946108 [2021-04-28 23:35:46,144 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:46,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,149 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,149 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 108 flow. Second operand 4 states and 443 transitions. [2021-04-28 23:35:46,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 33 transitions, 153 flow [2021-04-28 23:35:46,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 33 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:35:46,153 INFO L241 Difference]: Finished difference. Result has 44 places, 26 transitions, 100 flow [2021-04-28 23:35:46,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=44, PETRI_TRANSITIONS=26} [2021-04-28 23:35:46,154 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -36 predicate places. [2021-04-28 23:35:46,154 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:46,154 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 26 transitions, 100 flow [2021-04-28 23:35:46,157 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 26 transitions, 100 flow [2021-04-28 23:35:46,158 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 26 transitions, 100 flow [2021-04-28 23:35:46,165 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-04-28 23:35:46,166 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-28 23:35:46,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 37 events. 2/37 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 99 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 72. Up to 8 conditions per place. [2021-04-28 23:35:46,167 INFO L146 LiptonReduction]: Number of co-enabled transitions 284 [2021-04-28 23:35:46,174 INFO L158 LiptonReduction]: Checked pairs total: 180 [2021-04-28 23:35:46,174 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:46,174 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-28 23:35:46,178 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 26 transitions, 100 flow [2021-04-28 23:35:46,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,179 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:46,179 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:46,179 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:35:46,179 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:46,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:46,180 INFO L82 PathProgramCache]: Analyzing trace with hash 841181130, now seen corresponding path program 1 times [2021-04-28 23:35:46,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:46,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511414531] [2021-04-28 23:35:46,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:46,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,290 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:35:46,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:35:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511414531] [2021-04-28 23:35:46,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:46,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:35:46,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679432315] [2021-04-28 23:35:46,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:35:46,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:35:46,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:35:46,308 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 167 [2021-04-28 23:35:46,309 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 26 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,309 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:46,309 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 167 [2021-04-28 23:35:46,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:46,335 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-04-28 23:35:46,335 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2021-04-28 23:35:46,336 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 55 events. 3/55 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 220 event pairs, 0 based on Foata normal form. 4/41 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. [2021-04-28 23:35:46,336 INFO L132 encePairwiseOnDemand]: 163/167 looper letters, 3 selfloop transitions, 3 changer transitions 6/29 dead transitions. [2021-04-28 23:35:46,338 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 142 flow [2021-04-28 23:35:46,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:35:46,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:35:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-28 23:35:46,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6631736526946108 [2021-04-28 23:35:46,340 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:46,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-28 23:35:46,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,347 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 167.0) internal successors, (835), 5 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,347 INFO L185 Difference]: Start difference. First operand has 42 places, 26 transitions, 100 flow. Second operand 4 states and 443 transitions. [2021-04-28 23:35:46,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 142 flow [2021-04-28 23:35:46,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 110 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-04-28 23:35:46,350 INFO L241 Difference]: Finished difference. Result has 40 places, 23 transitions, 80 flow [2021-04-28 23:35:46,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=40, PETRI_TRANSITIONS=23} [2021-04-28 23:35:46,351 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -40 predicate places. [2021-04-28 23:35:46,351 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:46,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 23 transitions, 80 flow [2021-04-28 23:35:46,351 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 23 transitions, 80 flow [2021-04-28 23:35:46,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 23 transitions, 80 flow [2021-04-28 23:35:46,354 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-04-28 23:35:46,355 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-04-28 23:35:46,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 23 events. 0/23 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:35:46,355 INFO L146 LiptonReduction]: Number of co-enabled transitions 200 [2021-04-28 23:35:46,439 INFO L158 LiptonReduction]: Checked pairs total: 126 [2021-04-28 23:35:46,439 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:35:46,440 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 89 [2021-04-28 23:35:46,441 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 23 transitions, 80 flow [2021-04-28 23:35:46,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,442 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:46,442 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:46,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:35:46,443 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:46,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1387597696, now seen corresponding path program 1 times [2021-04-28 23:35:46,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:46,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871897190] [2021-04-28 23:35:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:46,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:46,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:46,493 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:35:46,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:35:46,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:46,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871897190] [2021-04-28 23:35:46,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:46,502 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:35:46,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979663733] [2021-04-28 23:35:46,503 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:35:46,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:46,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:35:46,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:35:46,505 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 170 [2021-04-28 23:35:46,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 23 transitions, 80 flow. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:46,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 170 [2021-04-28 23:35:46,506 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:46,524 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-28 23:35:46,525 INFO L130 PetriNetUnfolder]: For 52/53 co-relation queries the response was YES. [2021-04-28 23:35:46,525 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 22 events. 0/22 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 5/20 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:35:46,525 INFO L132 encePairwiseOnDemand]: 164/170 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-04-28 23:35:46,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 22 transitions, 86 flow [2021-04-28 23:35:46,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:35:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:35:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2021-04-28 23:35:46,527 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6323529411764706 [2021-04-28 23:35:46,528 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 430 transitions. [2021-04-28 23:35:46,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 430 transitions. [2021-04-28 23:35:46,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:46,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 430 transitions. [2021-04-28 23:35:46,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 107.5) internal successors, (430), 4 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,532 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 170.0) internal successors, (850), 5 states have internal predecessors, (850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,533 INFO L185 Difference]: Start difference. First operand has 39 places, 23 transitions, 80 flow. Second operand 4 states and 430 transitions. [2021-04-28 23:35:46,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 22 transitions, 86 flow [2021-04-28 23:35:46,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 22 transitions, 70 flow, removed 1 selfloop flow, removed 7 redundant places. [2021-04-28 23:35:46,534 INFO L241 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2021-04-28 23:35:46,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=170, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, 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=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2021-04-28 23:35:46,534 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -46 predicate places. [2021-04-28 23:35:46,535 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:46,535 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 0 transitions, 0 flow [2021-04-28 23:35:46,535 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 0 transitions, 0 flow [2021-04-28 23:35:46,535 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:35:46,535 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:35:46,536 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:46,536 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:35:46,536 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:35:46,536 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:35:46,536 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:46,536 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-28 23:35:46,538 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:35:46,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:46,539 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:35:46,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:35:46 BasicIcfg [2021-04-28 23:35:46,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:35:46,545 INFO L168 Benchmark]: Toolchain (without parser) took 12584.74 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 276.2 MB in the beginning and 211.8 MB in the end (delta: 64.4 MB). Peak memory consumption was 199.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,545 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:35:46,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 242.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.03 ms. Allocated memory is still 302.0 MB. Free memory was 242.3 MB in the beginning and 284.6 MB in the end (delta: -42.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,547 INFO L168 Benchmark]: Boogie Preprocessor took 55.45 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 283.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,548 INFO L168 Benchmark]: RCFGBuilder took 590.67 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 260.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,549 INFO L168 Benchmark]: TraceAbstraction took 11125.64 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 259.2 MB in the beginning and 211.8 MB in the end (delta: 47.3 MB). Peak memory consumption was 184.7 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:46,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 271.8 MB in the end (delta: 153.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 682.25 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 242.3 MB in the end (delta: 30.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 67.03 ms. Allocated memory is still 302.0 MB. Free memory was 242.3 MB in the beginning and 284.6 MB in the end (delta: -42.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.45 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 283.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 590.67 ms. Allocated memory is still 302.0 MB. Free memory was 283.3 MB in the beginning and 260.2 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11125.64 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 259.2 MB in the beginning and 211.8 MB in the end (delta: 47.3 MB). Peak memory consumption was 184.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9665.5ms, 70 PlacesBefore, 80 PlacesAfterwards, 61 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 5406 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2394, positive: 2234, positive conditional: 2234, positive unconditional: 0, negative: 160, negative conditional: 160, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 952, positive: 912, positive conditional: 0, positive unconditional: 912, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 952, positive: 912, positive conditional: 0, positive unconditional: 912, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 952, positive: 890, positive conditional: 0, positive unconditional: 890, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 326, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 214, negative conditional: 0, negative unconditional: 214, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2394, positive: 1322, positive conditional: 1322, positive unconditional: 0, negative: 120, negative conditional: 120, negative unconditional: 0, unknown: 952, unknown conditional: 952, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 935, Positive cache size: 895, Positive conditional cache size: 895, Positive unconditional cache size: 0, Negative cache size: 40, Negative conditional cache size: 40, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.2ms, 80 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 357 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 128, positive: 105, positive conditional: 105, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 2, positive unconditional: 15, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, positive: 17, positive conditional: 0, positive unconditional: 17, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 13, negative conditional: 8, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 128, positive: 88, positive conditional: 88, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 912, Positive conditional cache size: 912, Positive unconditional cache size: 0, Negative cache size: 43, Negative conditional cache size: 43, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 24.1ms, 40 PlacesBefore, 40 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 406 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 913, Positive conditional cache size: 913, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.4ms, 44 PlacesBefore, 42 PlacesAfterwards, 26 TransitionsBefore, 26 TransitionsAfterwards, 284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 64, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 64, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 963, Positive cache size: 917, Positive conditional cache size: 917, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 88.0ms, 40 PlacesBefore, 39 PlacesAfterwards, 23 TransitionsBefore, 23 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 4, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 4, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 930, Positive conditional cache size: 930, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 34 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 976, Positive cache size: 930, Positive conditional cache size: 930, Positive unconditional cache size: 0, Negative cache size: 46, Negative conditional cache size: 46, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 23.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 11016.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 350.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9771.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 46 SDtfs, 31 SDslu, 10 SDs, 0 SdLazy, 44 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 81.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 20.3ms SsaConstructionTime, 138.2ms SatisfiabilityAnalysisTime, 352.8ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...