/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 10:28:21,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 10:28:21,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 10:28:21,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 10:28:21,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 10:28:21,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 10:28:21,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 10:28:21,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 10:28:21,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 10:28:21,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 10:28:21,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 10:28:21,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 10:28:21,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 10:28:21,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 10:28:21,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 10:28:21,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 10:28:21,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 10:28:21,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 10:28:21,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 10:28:21,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 10:28:21,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 10:28:21,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 10:28:21,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 10:28:21,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 10:28:21,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 10:28:21,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 10:28:21,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 10:28:21,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 10:28:21,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 10:28:21,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 10:28:21,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 10:28:21,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 10:28:21,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 10:28:21,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 10:28:21,495 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 10:28:21,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 10:28:21,497 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 10:28:21,516 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 10:28:21,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 10:28:21,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 10:28:21,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 10:28:21,518 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 10:28:21,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 10:28:21,518 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 10:28:21,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 10:28:21,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 10:28:21,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 10:28:21,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 10:28:21,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 10:28:21,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 10:28:21,520 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 10:28:21,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 10:28:21,520 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 10:28:21,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 10:28:21,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 10:28:21,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 10:28:21,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 10:28:21,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 10:28:21,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 10:28:21,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 10:28:21,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 10:28:21,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 10:28:21,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 10:28:21,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 10:28:21,523 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 10:28:21,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 10:28:21,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 10:28:21,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 10:28:21,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 10:28:21,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 10:28:21,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 10:28:21,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-26 10:28:21,823 INFO L275 PluginConnector]: CDTParser initialized [2021-03-26 10:28:21,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-03-26 10:28:21,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dfcc369/7675546dc71d4b4ab80ca7d0216833f4/FLAGc2321edf6 [2021-03-26 10:28:22,425 INFO L306 CDTParser]: Found 1 translation units. [2021-03-26 10:28:22,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2021-03-26 10:28:22,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dfcc369/7675546dc71d4b4ab80ca7d0216833f4/FLAGc2321edf6 [2021-03-26 10:28:22,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06dfcc369/7675546dc71d4b4ab80ca7d0216833f4 [2021-03-26 10:28:22,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 10:28:22,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-26 10:28:22,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-26 10:28:22,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-26 10:28:22,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-26 10:28:22,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:28:22" (1/1) ... [2021-03-26 10:28:22,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31966a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:22, skipping insertion in model container [2021-03-26 10:28:22,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.03 10:28:22" (1/1) ... [2021-03-26 10:28:22,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-26 10:28:22,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-26 10:28:23,082 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/safe003_tso.opt.i[949,962] [2021-03-26 10:28:23,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:28:23,279 INFO L203 MainTranslator]: Completed pre-run [2021-03-26 10:28:23,289 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/safe003_tso.opt.i[949,962] [2021-03-26 10:28:23,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-26 10:28:23,377 INFO L208 MainTranslator]: Completed translation [2021-03-26 10:28:23,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23 WrapperNode [2021-03-26 10:28:23,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-26 10:28:23,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 10:28:23,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 10:28:23,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 10:28:23,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 10:28:23,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 10:28:23,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 10:28:23,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 10:28:23,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (1/1) ... [2021-03-26 10:28:23,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 10:28:23,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 10:28:23,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 10:28:23,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 10:28:23,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (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 [2021-03-26 10:28:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-03-26 10:28:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-03-26 10:28:23,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-03-26 10:28:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-03-26 10:28:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-03-26 10:28:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-26 10:28:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-26 10:28:23,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 10:28:23,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 10:28:23,514 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 10:28:23,868 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 10:28:23,868 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-03-26 10:28:23,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:28:23 BoogieIcfgContainer [2021-03-26 10:28:23,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 10:28:23,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 10:28:23,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 10:28:23,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 10:28:23,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.03 10:28:22" (1/3) ... [2021-03-26 10:28:23,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c56509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:28:23, skipping insertion in model container [2021-03-26 10:28:23,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.03 10:28:23" (2/3) ... [2021-03-26 10:28:23,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c56509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 10:28:23, skipping insertion in model container [2021-03-26 10:28:23,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 10:28:23" (3/3) ... [2021-03-26 10:28:23,878 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2021-03-26 10:28:23,883 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 10:28:23,886 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 10:28:23,887 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 10:28:23,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,922 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,923 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,927 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,927 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,928 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,928 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,928 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,928 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,929 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,930 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,931 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,934 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,938 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,938 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,939 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,939 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,944 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,944 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,945 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,945 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 10:28:23,947 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-03-26 10:28:23,963 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 10:28:23,993 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 10:28:23,993 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 10:28:23,993 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 10:28:23,993 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 10:28:23,994 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 10:28:23,994 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 10:28:23,994 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 10:28:23,994 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 10:28:24,006 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:28:24,051 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-03-26 10:28:24,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:28:24,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-03-26 10:28:24,056 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 75 transitions, 165 flow [2021-03-26 10:28:24,067 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 60 transitions, 129 flow [2021-03-26 10:28:24,069 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:28:24,080 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:28:24,087 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 60 transitions, 129 flow [2021-03-26 10:28:24,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 60 transitions, 129 flow [2021-03-26 10:28:24,110 INFO L129 PetriNetUnfolder]: 1/60 cut-off events. [2021-03-26 10:28:24,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:28:24,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 60 events. 1/60 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. 0/59 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-03-26 10:28:24,113 INFO L142 LiptonReduction]: Number of co-enabled transitions 864 [2021-03-26 10:28:25,594 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-03-26 10:28:25,783 INFO L154 LiptonReduction]: Checked pairs total: 1328 [2021-03-26 10:28:25,783 INFO L156 LiptonReduction]: Total number of compositions: 41 [2021-03-26 10:28:25,785 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1717 [2021-03-26 10:28:25,796 INFO L129 PetriNetUnfolder]: 0/19 cut-off events. [2021-03-26 10:28:25,797 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:28:25,797 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:28:25,797 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:28:25,798 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:28:25,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:28:25,802 INFO L82 PathProgramCache]: Analyzing trace with hash -864788976, now seen corresponding path program 1 times [2021-03-26 10:28:25,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:28:25,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379262883] [2021-03-26 10:28:25,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:28:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:28:26,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:26,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:26,049 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:28:26,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:28:26,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:26,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:28:26,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379262883] [2021-03-26 10:28:26,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:28:26,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 10:28:26,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776595699] [2021-03-26 10:28:26,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 10:28:26,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:28:26,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 10:28:26,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 10:28:26,104 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 116 [2021-03-26 10:28:26,112 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 51 flow. Second operand has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2021-03-26 10:28:26,113 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:28:26,113 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 116 [2021-03-26 10:28:26,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:28:26,183 INFO L129 PetriNetUnfolder]: 57/156 cut-off events. [2021-03-26 10:28:26,183 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:28:26,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 156 events. 57/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 666 event pairs, 9 based on Foata normal form. 22/168 useless extension candidates. Maximal degree in co-relation 267. Up to 32 conditions per place. [2021-03-26 10:28:26,185 INFO L132 encePairwiseOnDemand]: 109/116 looper letters, 11 selfloop transitions, 5 changer transitions 13/41 dead transitions. [2021-03-26 10:28:26,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 41 transitions, 149 flow [2021-03-26 10:28:26,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:28:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:28:26,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 613 transitions. [2021-03-26 10:28:26,198 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7549261083743842 [2021-03-26 10:28:26,199 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 613 transitions. [2021-03-26 10:28:26,199 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 613 transitions. [2021-03-26 10:28:26,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:28:26,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 613 transitions. [2021-03-26 10:28:26,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.57142857142857) internal successors, (613), 7 states have internal predecessors, (613), 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) [2021-03-26 10:28:26,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-03-26 10:28:26,215 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 116.0) internal successors, (928), 8 states have internal predecessors, (928), 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) [2021-03-26 10:28:26,216 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 51 flow. Second operand 7 states and 613 transitions. [2021-03-26 10:28:26,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 41 transitions, 149 flow [2021-03-26 10:28:26,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 41 transitions, 146 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 10:28:26,220 INFO L241 Difference]: Finished difference. Result has 40 places, 24 transitions, 96 flow [2021-03-26 10:28:26,222 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=116, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2021-03-26 10:28:26,222 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 10:28:26,222 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:28:26,223 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 24 transitions, 96 flow [2021-03-26 10:28:26,223 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 24 transitions, 96 flow [2021-03-26 10:28:26,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 24 transitions, 96 flow [2021-03-26 10:28:26,231 INFO L129 PetriNetUnfolder]: 10/65 cut-off events. [2021-03-26 10:28:26,231 INFO L130 PetriNetUnfolder]: For 33/35 co-relation queries the response was YES. [2021-03-26 10:28:26,231 INFO L84 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 65 events. 10/65 cut-off events. For 33/35 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 5 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 135. Up to 22 conditions per place. [2021-03-26 10:28:26,232 INFO L142 LiptonReduction]: Number of co-enabled transitions 144 [2021-03-26 10:28:26,648 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:28:26,858 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2021-03-26 10:28:26,925 INFO L154 LiptonReduction]: Checked pairs total: 255 [2021-03-26 10:28:26,926 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 10:28:26,926 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 704 [2021-03-26 10:28:26,927 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 21 transitions, 90 flow [2021-03-26 10:28:26,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 83.8) internal successors, (419), 5 states have internal predecessors, (419), 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) [2021-03-26 10:28:26,927 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:28:26,927 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:28:26,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 10:28:26,928 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:28:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:28:26,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1991046540, now seen corresponding path program 1 times [2021-03-26 10:28:26,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:28:26,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981327790] [2021-03-26 10:28:26,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:28:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:28:27,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:28:27,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,030 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:28:27,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:28:27,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:28:27,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981327790] [2021-03-26 10:28:27,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:28:27,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:28:27,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568683785] [2021-03-26 10:28:27,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:28:27,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:28:27,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:28:27,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:28:27,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 119 [2021-03-26 10:28:27,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 21 transitions, 90 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2021-03-26 10:28:27,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:28:27,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 119 [2021-03-26 10:28:27,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:28:27,131 INFO L129 PetriNetUnfolder]: 18/87 cut-off events. [2021-03-26 10:28:27,131 INFO L130 PetriNetUnfolder]: For 101/105 co-relation queries the response was YES. [2021-03-26 10:28:27,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 87 events. 18/87 cut-off events. For 101/105 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 343 event pairs, 3 based on Foata normal form. 6/90 useless extension candidates. Maximal degree in co-relation 245. Up to 28 conditions per place. [2021-03-26 10:28:27,134 INFO L132 encePairwiseOnDemand]: 112/119 looper letters, 6 selfloop transitions, 7 changer transitions 17/40 dead transitions. [2021-03-26 10:28:27,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 40 transitions, 262 flow [2021-03-26 10:28:27,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:28:27,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:28:27,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 615 transitions. [2021-03-26 10:28:27,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7382953181272509 [2021-03-26 10:28:27,138 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 615 transitions. [2021-03-26 10:28:27,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 615 transitions. [2021-03-26 10:28:27,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:28:27,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 615 transitions. [2021-03-26 10:28:27,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 87.85714285714286) internal successors, (615), 7 states have internal predecessors, (615), 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) [2021-03-26 10:28:27,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2021-03-26 10:28:27,145 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 119.0) internal successors, (952), 8 states have internal predecessors, (952), 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) [2021-03-26 10:28:27,145 INFO L185 Difference]: Start difference. First operand has 34 places, 21 transitions, 90 flow. Second operand 7 states and 615 transitions. [2021-03-26 10:28:27,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 40 transitions, 262 flow [2021-03-26 10:28:27,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 40 transitions, 251 flow, removed 4 selfloop flow, removed 2 redundant places. [2021-03-26 10:28:27,149 INFO L241 Difference]: Finished difference. Result has 42 places, 21 transitions, 112 flow [2021-03-26 10:28:27,150 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=42, PETRI_TRANSITIONS=21} [2021-03-26 10:28:27,150 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 11 predicate places. [2021-03-26 10:28:27,150 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:28:27,151 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 21 transitions, 112 flow [2021-03-26 10:28:27,152 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 21 transitions, 112 flow [2021-03-26 10:28:27,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 21 transitions, 112 flow [2021-03-26 10:28:27,159 INFO L129 PetriNetUnfolder]: 1/36 cut-off events. [2021-03-26 10:28:27,159 INFO L130 PetriNetUnfolder]: For 43/54 co-relation queries the response was YES. [2021-03-26 10:28:27,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 36 events. 1/36 cut-off events. For 43/54 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 92. Up to 9 conditions per place. [2021-03-26 10:28:27,160 INFO L142 LiptonReduction]: Number of co-enabled transitions 126 [2021-03-26 10:28:27,227 INFO L154 LiptonReduction]: Checked pairs total: 171 [2021-03-26 10:28:27,228 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:28:27,228 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-26 10:28:27,229 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 20 transitions, 110 flow [2021-03-26 10:28:27,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2021-03-26 10:28:27,229 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:28:27,229 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:28:27,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 10:28:27,230 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:28:27,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:28:27,230 INFO L82 PathProgramCache]: Analyzing trace with hash 311115971, now seen corresponding path program 1 times [2021-03-26 10:28:27,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:28:27,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59451384] [2021-03-26 10:28:27,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:28:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:28:27,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 10:28:27,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,277 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-03-26 10:28:27,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 10:28:27,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:28:27,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59451384] [2021-03-26 10:28:27,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:28:27,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 10:28:27,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942174803] [2021-03-26 10:28:27,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 10:28:27,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:28:27,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 10:28:27,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-03-26 10:28:27,295 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 120 [2021-03-26 10:28:27,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 20 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2021-03-26 10:28:27,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:28:27,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 120 [2021-03-26 10:28:27,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:28:27,362 INFO L129 PetriNetUnfolder]: 8/46 cut-off events. [2021-03-26 10:28:27,362 INFO L130 PetriNetUnfolder]: For 118/122 co-relation queries the response was YES. [2021-03-26 10:28:27,362 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 46 events. 8/46 cut-off events. For 118/122 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 114 event pairs, 1 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 153. Up to 14 conditions per place. [2021-03-26 10:28:27,363 INFO L132 encePairwiseOnDemand]: 113/120 looper letters, 4 selfloop transitions, 5 changer transitions 9/28 dead transitions. [2021-03-26 10:28:27,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 28 transitions, 198 flow [2021-03-26 10:28:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 10:28:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 10:28:27,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 606 transitions. [2021-03-26 10:28:27,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2021-03-26 10:28:27,365 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 606 transitions. [2021-03-26 10:28:27,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 606 transitions. [2021-03-26 10:28:27,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:28:27,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 606 transitions. [2021-03-26 10:28:27,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 86.57142857142857) internal successors, (606), 7 states have internal predecessors, (606), 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) [2021-03-26 10:28:27,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2021-03-26 10:28:27,369 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 120.0) internal successors, (960), 8 states have internal predecessors, (960), 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) [2021-03-26 10:28:27,369 INFO L185 Difference]: Start difference. First operand has 39 places, 20 transitions, 110 flow. Second operand 7 states and 606 transitions. [2021-03-26 10:28:27,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 28 transitions, 198 flow [2021-03-26 10:28:27,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 28 transitions, 144 flow, removed 14 selfloop flow, removed 9 redundant places. [2021-03-26 10:28:27,373 INFO L241 Difference]: Finished difference. Result has 40 places, 19 transitions, 91 flow [2021-03-26 10:28:27,373 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=91, PETRI_PLACES=40, PETRI_TRANSITIONS=19} [2021-03-26 10:28:27,373 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2021-03-26 10:28:27,373 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:28:27,373 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 19 transitions, 91 flow [2021-03-26 10:28:27,374 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 19 transitions, 91 flow [2021-03-26 10:28:27,374 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 19 transitions, 91 flow [2021-03-26 10:28:27,377 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-26 10:28:27,377 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-03-26 10:28:27,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 23 events. 2/23 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 29 event pairs, 1 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 56. Up to 7 conditions per place. [2021-03-26 10:28:27,377 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 10:28:27,403 INFO L154 LiptonReduction]: Checked pairs total: 59 [2021-03-26 10:28:27,403 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 10:28:27,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 10:28:27,407 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 89 flow [2021-03-26 10:28:27,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 85.16666666666667) internal successors, (511), 6 states have internal predecessors, (511), 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) [2021-03-26 10:28:27,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 10:28:27,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 10:28:27,408 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 10:28:27,408 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-26 10:28:27,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 10:28:27,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1286190979, now seen corresponding path program 1 times [2021-03-26 10:28:27,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 10:28:27,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251851382] [2021-03-26 10:28:27,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 10:28:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 10:28:27,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 10:28:27,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 10:28:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 10:28:27,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251851382] [2021-03-26 10:28:27,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 10:28:27,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-26 10:28:27,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331707548] [2021-03-26 10:28:27,474 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 10:28:27,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 10:28:27,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 10:28:27,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 10:28:27,475 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2021-03-26 10:28:27,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 89 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2021-03-26 10:28:27,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 10:28:27,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2021-03-26 10:28:27,476 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 10:28:27,488 INFO L129 PetriNetUnfolder]: 2/21 cut-off events. [2021-03-26 10:28:27,488 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-03-26 10:28:27,488 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 21 events. 2/21 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 22 event pairs, 1 based on Foata normal form. 1/21 useless extension candidates. Maximal degree in co-relation 59. Up to 7 conditions per place. [2021-03-26 10:28:27,489 INFO L132 encePairwiseOnDemand]: 118/121 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2021-03-26 10:28:27,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 17 transitions, 87 flow [2021-03-26 10:28:27,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 10:28:27,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 10:28:27,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-03-26 10:28:27,490 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8016528925619835 [2021-03-26 10:28:27,490 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-03-26 10:28:27,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-03-26 10:28:27,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 10:28:27,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-03-26 10:28:27,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2021-03-26 10:28:27,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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) [2021-03-26 10:28:27,492 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 121.0) internal successors, (605), 5 states have internal predecessors, (605), 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) [2021-03-26 10:28:27,493 INFO L185 Difference]: Start difference. First operand has 36 places, 18 transitions, 89 flow. Second operand 4 states and 388 transitions. [2021-03-26 10:28:27,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 17 transitions, 87 flow [2021-03-26 10:28:27,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 62 flow, removed 4 selfloop flow, removed 8 redundant places. [2021-03-26 10:28:27,494 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-03-26 10:28:27,494 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-03-26 10:28:27,494 INFO L343 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2021-03-26 10:28:27,494 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 10:28:27,494 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:28:27,494 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-03-26 10:28:27,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 10:28:27,495 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 10:28:27,495 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 10:28:27,495 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. [2021-03-26 10:28:27,495 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 10:28:27,495 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 10:28:27,495 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 10:28:27,495 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 10:28:27,496 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 10:28:27,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2021-03-26 10:28:27,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 10:28:27,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 10:28:27 BasicIcfg [2021-03-26 10:28:27,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 10:28:27,500 INFO L168 Benchmark]: Toolchain (without parser) took 4611.69 ms. Allocated memory was 255.9 MB in the beginning and 419.4 MB in the end (delta: 163.6 MB). Free memory was 235.3 MB in the beginning and 186.0 MB in the end (delta: 49.3 MB). Peak memory consumption was 211.4 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,501 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 10:28:27,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.18 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 235.3 MB in the beginning and 311.2 MB in the end (delta: -75.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,501 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 309.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,504 INFO L168 Benchmark]: Boogie Preprocessor took 34.14 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 307.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,508 INFO L168 Benchmark]: RCFGBuilder took 419.15 ms. Allocated memory is still 348.1 MB. Free memory was 307.6 MB in the beginning and 323.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,511 INFO L168 Benchmark]: TraceAbstraction took 3626.99 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 323.5 MB in the beginning and 186.0 MB in the end (delta: 137.4 MB). Peak memory consumption was 208.7 MB. Max. memory is 16.0 GB. [2021-03-26 10:28:27,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 490.18 ms. Allocated memory was 255.9 MB in the beginning and 348.1 MB in the end (delta: 92.3 MB). Free memory was 235.3 MB in the beginning and 311.2 MB in the end (delta: -75.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.94 ms. Allocated memory is still 348.1 MB. Free memory was 311.2 MB in the beginning and 309.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.14 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 307.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 419.15 ms. Allocated memory is still 348.1 MB. Free memory was 307.6 MB in the beginning and 323.9 MB in the end (delta: -16.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3626.99 ms. Allocated memory was 348.1 MB in the beginning and 419.4 MB in the end (delta: 71.3 MB). Free memory was 323.5 MB in the beginning and 186.0 MB in the end (delta: 137.4 MB). Peak memory consumption was 208.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1695.6ms, 69 PlacesBefore, 31 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 41 TotalNumberOfCompositions, 1328 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 668, positive: 621, positive conditional: 621, positive unconditional: 0, negative: 47, negative conditional: 47, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 668, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 668, positive: 621, positive conditional: 0, positive unconditional: 621, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 562, positive: 537, positive conditional: 0, positive unconditional: 537, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 562, positive: 537, positive conditional: 0, positive unconditional: 537, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 25, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 100, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 668, positive: 84, positive conditional: 0, positive unconditional: 84, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 562, unknown conditional: 0, unknown unconditional: 562] , Statistics on independence cache: Total cache size (in pairs): 562, Positive cache size: 537, Positive conditional cache size: 0, Positive unconditional cache size: 537, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 702.6ms, 40 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 21 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 255 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 66, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 66, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 578, Positive cache size: 549, Positive conditional cache size: 0, Positive unconditional cache size: 549, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.3ms, 42 PlacesBefore, 39 PlacesAfterwards, 21 TransitionsBefore, 20 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 68, positive: 53, positive conditional: 53, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 68, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 68, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 68, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 14, negative conditional: 1, negative unconditional: 13, unknown: 14, unknown conditional: 1, unknown unconditional: 13] , Statistics on independence cache: Total cache size (in pairs): 592, Positive cache size: 562, Positive conditional cache size: 0, Positive unconditional cache size: 562, Negative cache size: 30, Negative conditional cache size: 1, Negative unconditional cache size: 29, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.4ms, 40 PlacesBefore, 36 PlacesAfterwards, 19 TransitionsBefore, 18 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 59 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 16, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 594, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 30, Negative conditional cache size: 1, Negative unconditional cache size: 29, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7ms, 30 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: 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): 594, Positive cache size: 564, Positive conditional cache size: 0, Positive unconditional cache size: 564, Negative cache size: 30, Negative conditional cache size: 1, Negative unconditional cache size: 29, Eliminated conditions: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 6.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3506.9ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 322.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1796.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 41 SDslu, 50 SDs, 0 SdLazy, 59 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 124.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=2, InterpolantAutomatonStates: 25, 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: 10.9ms SsaConstructionTime, 92.7ms SatisfiabilityAnalysisTime, 325.9ms InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 323 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...