/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:41:41,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:41:41,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:41:41,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:41:41,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:41:41,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:41:41,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:41:41,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:41:41,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:41:41,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:41:41,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:41:41,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:41:41,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:41:41,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:41:41,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:41:41,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:41:41,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:41:41,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:41:41,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:41:41,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:41:41,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:41:41,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:41:41,548 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:41:41,549 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:41:41,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 23:41:41,556 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:41:41,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:41:41,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:41:41,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:41:41,560 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:41:41,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:41:41,561 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:41:41,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:41:41,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:41:41,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:41:41,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:41:41,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 23:41:41,594 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:41:41,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:41:41,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:41:41,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:41:41,596 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:41:41,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:41:41,597 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:41:41,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:41:41,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:41:41,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:41:41,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:41:41,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:41:41,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:41:41,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:41:41,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:41:41,599 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:41:41,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:41:41,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:41:41,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:41:41,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:41:41,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:41:41,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:41:41,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:41:41,601 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:41:41,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:41:41,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:41:41,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:41:41,601 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:41:41,602 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:41:41,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:41:41,602 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:41:41,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:41:42,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:41:42,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:41:42,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:41:42,049 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:41:42,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-04-28 23:41:42,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438d50c5f/87f91887e57b4410854618894dbd998b/FLAG906e8253a [2021-04-28 23:41:42,875 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:41:42,875 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.oepc.i [2021-04-28 23:41:42,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438d50c5f/87f91887e57b4410854618894dbd998b/FLAG906e8253a [2021-04-28 23:41:43,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/438d50c5f/87f91887e57b4410854618894dbd998b [2021-04-28 23:41:43,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:41:43,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:41:43,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:41:43,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:41:43,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:41:43,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d6ebae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43, skipping insertion in model container [2021-04-28 23:41:43,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:41:43,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:41:43,411 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/safe009_tso.oepc.i[950,963] [2021-04-28 23:41:43,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:41:43,696 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:41:43,715 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/safe009_tso.oepc.i[950,963] [2021-04-28 23:41:43,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:41:43,909 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:41:43,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43 WrapperNode [2021-04-28 23:41:43,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:41:43,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:41:43,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:41:43,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:41:43,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,971 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:41:43,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:41:43,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:41:43,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:41:43,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:43,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... [2021-04-28 23:41:44,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:41:44,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:41:44,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:41:44,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:41:44,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:41:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:41:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:41:44,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:41:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:41:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:41:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:41:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:41:44,119 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:41:44,119 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 23:41:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 23:41:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:41:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:41:44,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:41:44,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:41:44,122 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:41:44,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:41:44,545 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:41:44,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:41:44 BoogieIcfgContainer [2021-04-28 23:41:44,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:41:44,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:41:44,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:41:44,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:41:44,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:41:43" (1/3) ... [2021-04-28 23:41:44,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e722b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:41:44, skipping insertion in model container [2021-04-28 23:41:44,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:41:43" (2/3) ... [2021-04-28 23:41:44,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e722b0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:41:44, skipping insertion in model container [2021-04-28 23:41:44,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:41:44" (3/3) ... [2021-04-28 23:41:44,559 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2021-04-28 23:41:44,568 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:41:44,574 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:41:44,576 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:41:44,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,615 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,616 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,616 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,617 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,617 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,618 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,620 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,622 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,623 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,625 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,625 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,626 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,630 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,637 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,637 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,638 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,640 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,641 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,641 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:41:44,644 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:41:44,677 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-28 23:41:44,710 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:41:44,710 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:41:44,710 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:41:44,711 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:41:44,711 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:41:44,711 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:41:44,711 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:41:44,711 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:41:44,730 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 73 transitions, 161 flow [2021-04-28 23:41:44,790 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-04-28 23:41:44,790 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:44,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 2/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 52 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2021-04-28 23:41:44,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 73 transitions, 161 flow [2021-04-28 23:41:44,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 58 transitions, 125 flow [2021-04-28 23:41:44,806 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:44,829 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-28 23:41:44,836 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 58 transitions, 125 flow [2021-04-28 23:41:44,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 58 transitions, 125 flow [2021-04-28 23:41:44,881 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-28 23:41:44,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:44,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 58 events. 1/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-04-28 23:41:44,892 INFO L146 LiptonReduction]: Number of co-enabled transitions 812 [2021-04-28 23:41:48,921 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-28 23:41:50,220 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:50,402 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:50,570 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:41:50,739 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:41:50,908 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:51,074 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:41:51,259 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:51,441 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:51,629 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:51,838 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:41:52,014 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:41:52,192 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:41:52,473 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:41:52,718 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-28 23:41:53,405 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:41:53,671 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-28 23:41:53,792 INFO L158 LiptonReduction]: Checked pairs total: 6023 [2021-04-28 23:41:53,792 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-28 23:41:53,797 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8992 [2021-04-28 23:41:53,823 INFO L129 PetriNetUnfolder]: 0/60 cut-off events. [2021-04-28 23:41:53,823 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:53,823 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:53,824 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:53,824 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:53,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:53,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1671274434, now seen corresponding path program 1 times [2021-04-28 23:41:53,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:53,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44424079] [2021-04-28 23:41:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:54,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:54,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:54,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44424079] [2021-04-28 23:41:54,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:54,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:41:54,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659625191] [2021-04-28 23:41:54,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:41:54,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:54,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:41:54,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:41:54,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 164 [2021-04-28 23:41:54,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:54,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 164 [2021-04-28 23:41:54,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:54,300 INFO L129 PetriNetUnfolder]: 5/78 cut-off events. [2021-04-28 23:41:54,300 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:54,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 78 events. 5/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 382 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 76. Up to 17 conditions per place. [2021-04-28 23:41:54,303 INFO L132 encePairwiseOnDemand]: 149/164 looper letters, 1 selfloop transitions, 2 changer transitions 49/73 dead transitions. [2021-04-28 23:41:54,303 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 73 transitions, 205 flow [2021-04-28 23:41:54,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:41:54,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:41:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2021-04-28 23:41:54,323 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7926829268292683 [2021-04-28 23:41:54,324 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2021-04-28 23:41:54,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2021-04-28 23:41:54,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:54,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2021-04-28 23:41:54,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,349 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 390 transitions. [2021-04-28 23:41:54,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 73 transitions, 205 flow [2021-04-28 23:41:54,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:41:54,358 INFO L241 Difference]: Finished difference. Result has 78 places, 24 transitions, 62 flow [2021-04-28 23:41:54,361 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=78, PETRI_TRANSITIONS=24} [2021-04-28 23:41:54,362 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2021-04-28 23:41:54,362 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:54,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 24 transitions, 62 flow [2021-04-28 23:41:54,363 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 24 transitions, 62 flow [2021-04-28 23:41:54,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 24 transitions, 62 flow [2021-04-28 23:41:54,368 INFO L129 PetriNetUnfolder]: 0/24 cut-off events. [2021-04-28 23:41:54,369 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:54,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 55 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-28 23:41:54,370 INFO L146 LiptonReduction]: Number of co-enabled transitions 296 [2021-04-28 23:41:54,426 INFO L158 LiptonReduction]: Checked pairs total: 308 [2021-04-28 23:41:54,426 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:54,427 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-04-28 23:41:54,429 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 62 flow [2021-04-28 23:41:54,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,430 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:54,430 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:54,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:41:54,431 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:54,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:54,432 INFO L82 PathProgramCache]: Analyzing trace with hash -269901517, now seen corresponding path program 1 times [2021-04-28 23:41:54,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:54,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421131019] [2021-04-28 23:41:54,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:54,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:54,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:54,536 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:54,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:54,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421131019] [2021-04-28 23:41:54,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:54,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:54,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112455916] [2021-04-28 23:41:54,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:54,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:54,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:54,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:54,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-28 23:41:54,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,553 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:54,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-28 23:41:54,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:54,591 INFO L129 PetriNetUnfolder]: 10/83 cut-off events. [2021-04-28 23:41:54,591 INFO L130 PetriNetUnfolder]: For 14/23 co-relation queries the response was YES. [2021-04-28 23:41:54,592 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 83 events. 10/83 cut-off events. For 14/23 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 395 event pairs, 1 based on Foata normal form. 3/54 useless extension candidates. Maximal degree in co-relation 132. Up to 21 conditions per place. [2021-04-28 23:41:54,593 INFO L132 encePairwiseOnDemand]: 159/164 looper letters, 6 selfloop transitions, 6 changer transitions 0/30 dead transitions. [2021-04-28 23:41:54,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 30 transitions, 104 flow [2021-04-28 23:41:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2021-04-28 23:41:54,597 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6798780487804879 [2021-04-28 23:41:54,598 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 446 transitions. [2021-04-28 23:41:54,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 446 transitions. [2021-04-28 23:41:54,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:54,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 446 transitions. [2021-04-28 23:41:54,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,605 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,606 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 62 flow. Second operand 4 states and 446 transitions. [2021-04-28 23:41:54,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 30 transitions, 104 flow [2021-04-28 23:41:54,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:41:54,608 INFO L241 Difference]: Finished difference. Result has 37 places, 28 transitions, 94 flow [2021-04-28 23:41:54,608 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=37, PETRI_TRANSITIONS=28} [2021-04-28 23:41:54,609 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -41 predicate places. [2021-04-28 23:41:54,610 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:54,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 28 transitions, 94 flow [2021-04-28 23:41:54,610 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 28 transitions, 94 flow [2021-04-28 23:41:54,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 28 transitions, 94 flow [2021-04-28 23:41:54,619 INFO L129 PetriNetUnfolder]: 3/57 cut-off events. [2021-04-28 23:41:54,620 INFO L130 PetriNetUnfolder]: For 10/13 co-relation queries the response was YES. [2021-04-28 23:41:54,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 57 events. 3/57 cut-off events. For 10/13 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 238 event pairs, 0 based on Foata normal form. 1/35 useless extension candidates. Maximal degree in co-relation 89. Up to 9 conditions per place. [2021-04-28 23:41:54,621 INFO L146 LiptonReduction]: Number of co-enabled transitions 346 [2021-04-28 23:41:54,633 INFO L158 LiptonReduction]: Checked pairs total: 168 [2021-04-28 23:41:54,633 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:54,633 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-28 23:41:54,635 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 28 transitions, 94 flow [2021-04-28 23:41:54,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:54,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:54,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:41:54,636 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:54,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:54,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2125004127, now seen corresponding path program 1 times [2021-04-28 23:41:54,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:54,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284399307] [2021-04-28 23:41:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:54,710 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:54,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:54,713 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:54,719 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:54,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:54,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:54,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284399307] [2021-04-28 23:41:54,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:54,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:54,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085999672] [2021-04-28 23:41:54,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:54,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:54,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:54,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:54,733 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-28 23:41:54,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 28 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:54,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-28 23:41:54,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:54,775 INFO L129 PetriNetUnfolder]: 8/102 cut-off events. [2021-04-28 23:41:54,775 INFO L130 PetriNetUnfolder]: For 40/60 co-relation queries the response was YES. [2021-04-28 23:41:54,776 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 102 events. 8/102 cut-off events. For 40/60 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 570 event pairs, 2 based on Foata normal form. 5/65 useless extension candidates. Maximal degree in co-relation 185. Up to 14 conditions per place. [2021-04-28 23:41:54,776 INFO L132 encePairwiseOnDemand]: 159/164 looper letters, 7 selfloop transitions, 6 changer transitions 1/32 dead transitions. [2021-04-28 23:41:54,777 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 136 flow [2021-04-28 23:41:54,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:54,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:54,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 554 transitions. [2021-04-28 23:41:54,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.675609756097561 [2021-04-28 23:41:54,780 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 554 transitions. [2021-04-28 23:41:54,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 554 transitions. [2021-04-28 23:41:54,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:54,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 554 transitions. [2021-04-28 23:41:54,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.8) internal successors, (554), 5 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,786 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,787 INFO L185 Difference]: Start difference. First operand has 37 places, 28 transitions, 94 flow. Second operand 5 states and 554 transitions. [2021-04-28 23:41:54,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 136 flow [2021-04-28 23:41:54,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 23:41:54,790 INFO L241 Difference]: Finished difference. Result has 43 places, 29 transitions, 123 flow [2021-04-28 23:41:54,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2021-04-28 23:41:54,790 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -35 predicate places. [2021-04-28 23:41:54,791 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:54,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 29 transitions, 123 flow [2021-04-28 23:41:54,791 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 29 transitions, 123 flow [2021-04-28 23:41:54,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 29 transitions, 123 flow [2021-04-28 23:41:54,800 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2021-04-28 23:41:54,800 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-28 23:41:54,800 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 54 events. 2/54 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 234 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 103. Up to 9 conditions per place. [2021-04-28 23:41:54,802 INFO L146 LiptonReduction]: Number of co-enabled transitions 302 [2021-04-28 23:41:54,811 INFO L158 LiptonReduction]: Checked pairs total: 153 [2021-04-28 23:41:54,811 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:54,812 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-28 23:41:54,813 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 123 flow [2021-04-28 23:41:54,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 108.8) internal successors, (544), 5 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,815 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:54,815 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:54,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:41:54,815 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:54,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash 222123003, now seen corresponding path program 2 times [2021-04-28 23:41:54,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:54,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9649371] [2021-04-28 23:41:54,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:54,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:54,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:54,880 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:54,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:54,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:54,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9649371] [2021-04-28 23:41:54,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:54,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:54,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509660209] [2021-04-28 23:41:54,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:54,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:54,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:54,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:54,892 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-28 23:41:54,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,893 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:54,893 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-28 23:41:54,893 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:54,918 INFO L129 PetriNetUnfolder]: 5/65 cut-off events. [2021-04-28 23:41:54,919 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2021-04-28 23:41:54,919 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 65 events. 5/65 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 289 event pairs, 1 based on Foata normal form. 1/44 useless extension candidates. Maximal degree in co-relation 142. Up to 15 conditions per place. [2021-04-28 23:41:54,920 INFO L132 encePairwiseOnDemand]: 158/164 looper letters, 6 selfloop transitions, 7 changer transitions 1/31 dead transitions. [2021-04-28 23:41:54,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 31 transitions, 166 flow [2021-04-28 23:41:54,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:54,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:54,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-28 23:41:54,923 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6753048780487805 [2021-04-28 23:41:54,923 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-28 23:41:54,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-28 23:41:54,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:54,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-28 23:41:54,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,928 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,928 INFO L185 Difference]: Start difference. First operand has 43 places, 29 transitions, 123 flow. Second operand 4 states and 443 transitions. [2021-04-28 23:41:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 31 transitions, 166 flow [2021-04-28 23:41:54,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 31 transitions, 144 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-28 23:41:54,931 INFO L241 Difference]: Finished difference. Result has 43 places, 28 transitions, 122 flow [2021-04-28 23:41:54,932 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=43, PETRI_TRANSITIONS=28} [2021-04-28 23:41:54,932 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -35 predicate places. [2021-04-28 23:41:54,932 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:54,932 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 28 transitions, 122 flow [2021-04-28 23:41:54,933 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 28 transitions, 122 flow [2021-04-28 23:41:54,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 28 transitions, 122 flow [2021-04-28 23:41:54,940 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2021-04-28 23:41:54,941 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2021-04-28 23:41:54,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 51 events. 2/51 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 222 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2021-04-28 23:41:54,942 INFO L146 LiptonReduction]: Number of co-enabled transitions 272 [2021-04-28 23:41:54,949 INFO L158 LiptonReduction]: Checked pairs total: 104 [2021-04-28 23:41:54,950 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:54,950 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-04-28 23:41:54,952 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 122 flow [2021-04-28 23:41:54,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.0) internal successors, (436), 4 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:54,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:54,953 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:54,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:41:54,953 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:54,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:54,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1617765513, now seen corresponding path program 1 times [2021-04-28 23:41:54,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:54,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846711204] [2021-04-28 23:41:54,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:55,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 23:41:55,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:55,009 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:55,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:55,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:55,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846711204] [2021-04-28 23:41:55,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:55,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:55,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261295273] [2021-04-28 23:41:55,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:55,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:55,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:55,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:55,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 164 [2021-04-28 23:41:55,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 122 flow. Second operand has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:55,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 164 [2021-04-28 23:41:55,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:55,048 INFO L129 PetriNetUnfolder]: 3/67 cut-off events. [2021-04-28 23:41:55,048 INFO L130 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2021-04-28 23:41:55,048 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 67 events. 3/67 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 314 event pairs, 0 based on Foata normal form. 2/45 useless extension candidates. Maximal degree in co-relation 140. Up to 13 conditions per place. [2021-04-28 23:41:55,049 INFO L132 encePairwiseOnDemand]: 159/164 looper letters, 5 selfloop transitions, 7 changer transitions 2/30 dead transitions. [2021-04-28 23:41:55,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 158 flow [2021-04-28 23:41:55,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:41:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:41:55,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2021-04-28 23:41:55,052 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6753048780487805 [2021-04-28 23:41:55,052 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 443 transitions. [2021-04-28 23:41:55,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 443 transitions. [2021-04-28 23:41:55,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:55,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 443 transitions. [2021-04-28 23:41:55,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.75) internal successors, (443), 4 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,057 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,058 INFO L185 Difference]: Start difference. First operand has 42 places, 28 transitions, 122 flow. Second operand 4 states and 443 transitions. [2021-04-28 23:41:55,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 158 flow [2021-04-28 23:41:55,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 23:41:55,061 INFO L241 Difference]: Finished difference. Result has 44 places, 28 transitions, 134 flow [2021-04-28 23:41:55,061 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=134, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2021-04-28 23:41:55,061 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -34 predicate places. [2021-04-28 23:41:55,062 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:55,062 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 28 transitions, 134 flow [2021-04-28 23:41:55,062 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 28 transitions, 134 flow [2021-04-28 23:41:55,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 28 transitions, 134 flow [2021-04-28 23:41:55,069 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-04-28 23:41:55,069 INFO L130 PetriNetUnfolder]: For 38/42 co-relation queries the response was YES. [2021-04-28 23:41:55,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 48 events. 2/48 cut-off events. For 38/42 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 192 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 98. Up to 7 conditions per place. [2021-04-28 23:41:55,070 INFO L146 LiptonReduction]: Number of co-enabled transitions 234 [2021-04-28 23:41:55,076 INFO L158 LiptonReduction]: Checked pairs total: 98 [2021-04-28 23:41:55,077 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:55,077 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-04-28 23:41:55,079 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 28 transitions, 134 flow [2021-04-28 23:41:55,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.25) internal successors, (437), 4 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,079 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:55,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:55,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:41:55,080 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1256547795, now seen corresponding path program 1 times [2021-04-28 23:41:55,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:55,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941826715] [2021-04-28 23:41:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:55,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:55,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:55,162 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-28 23:41:55,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:55,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:55,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941826715] [2021-04-28 23:41:55,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:55,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:55,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143129929] [2021-04-28 23:41:55,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:55,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:55,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:55,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:55,184 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 164 [2021-04-28 23:41:55,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 28 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:55,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 164 [2021-04-28 23:41:55,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:55,214 INFO L129 PetriNetUnfolder]: 5/67 cut-off events. [2021-04-28 23:41:55,215 INFO L130 PetriNetUnfolder]: For 89/91 co-relation queries the response was YES. [2021-04-28 23:41:55,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 67 events. 5/67 cut-off events. For 89/91 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 281 event pairs, 0 based on Foata normal form. 4/47 useless extension candidates. Maximal degree in co-relation 155. Up to 14 conditions per place. [2021-04-28 23:41:55,216 INFO L132 encePairwiseOnDemand]: 159/164 looper letters, 3 selfloop transitions, 4 changer transitions 10/32 dead transitions. [2021-04-28 23:41:55,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 32 transitions, 202 flow [2021-04-28 23:41:55,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:55,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 538 transitions. [2021-04-28 23:41:55,219 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6560975609756098 [2021-04-28 23:41:55,219 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 538 transitions. [2021-04-28 23:41:55,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 538 transitions. [2021-04-28 23:41:55,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:55,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 538 transitions. [2021-04-28 23:41:55,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 107.6) internal successors, (538), 5 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,225 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,225 INFO L185 Difference]: Start difference. First operand has 43 places, 28 transitions, 134 flow. Second operand 5 states and 538 transitions. [2021-04-28 23:41:55,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 32 transitions, 202 flow [2021-04-28 23:41:55,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 32 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:41:55,228 INFO L241 Difference]: Finished difference. Result has 47 places, 22 transitions, 99 flow [2021-04-28 23:41:55,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=99, PETRI_PLACES=47, PETRI_TRANSITIONS=22} [2021-04-28 23:41:55,229 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -31 predicate places. [2021-04-28 23:41:55,229 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:55,230 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 22 transitions, 99 flow [2021-04-28 23:41:55,230 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 22 transitions, 99 flow [2021-04-28 23:41:55,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 22 transitions, 99 flow [2021-04-28 23:41:55,235 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-28 23:41:55,235 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-04-28 23:41:55,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 26 events. 0/26 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 26 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-28 23:41:55,236 INFO L146 LiptonReduction]: Number of co-enabled transitions 130 [2021-04-28 23:41:55,309 INFO L158 LiptonReduction]: Checked pairs total: 49 [2021-04-28 23:41:55,310 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:41:55,310 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-04-28 23:41:55,312 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 22 transitions, 126 flow [2021-04-28 23:41:55,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 106.0) internal successors, (530), 5 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,313 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:55,313 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:55,313 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 23:41:55,313 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:55,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1288240233, now seen corresponding path program 1 times [2021-04-28 23:41:55,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:55,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200967063] [2021-04-28 23:41:55,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:55,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:55,370 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-28 23:41:55,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:41:55,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:55,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200967063] [2021-04-28 23:41:55,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:55,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:41:55,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227657998] [2021-04-28 23:41:55,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:41:55,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:55,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:41:55,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:41:55,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 167 [2021-04-28 23:41:55,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 22 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 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) [2021-04-28 23:41:55,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:55,383 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 167 [2021-04-28 23:41:55,383 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:55,528 INFO L129 PetriNetUnfolder]: 369/645 cut-off events. [2021-04-28 23:41:55,528 INFO L130 PetriNetUnfolder]: For 1388/1425 co-relation queries the response was YES. [2021-04-28 23:41:55,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2195 conditions, 645 events. 369/645 cut-off events. For 1388/1425 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 3693 event pairs, 171 based on Foata normal form. 15/284 useless extension candidates. Maximal degree in co-relation 2176. Up to 475 conditions per place. [2021-04-28 23:41:55,533 INFO L132 encePairwiseOnDemand]: 155/167 looper letters, 11 selfloop transitions, 7 changer transitions 22/50 dead transitions. [2021-04-28 23:41:55,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 50 transitions, 343 flow [2021-04-28 23:41:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:41:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:41:55,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 562 transitions. [2021-04-28 23:41:55,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6730538922155689 [2021-04-28 23:41:55,537 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 562 transitions. [2021-04-28 23:41:55,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 562 transitions. [2021-04-28 23:41:55,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:55,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 562 transitions. [2021-04-28 23:41:55,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.4) internal successors, (562), 5 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,542 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,543 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 167.0) internal successors, (1002), 6 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,543 INFO L185 Difference]: Start difference. First operand has 47 places, 22 transitions, 126 flow. Second operand 5 states and 562 transitions. [2021-04-28 23:41:55,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 50 transitions, 343 flow [2021-04-28 23:41:55,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 50 transitions, 257 flow, removed 6 selfloop flow, removed 12 redundant places. [2021-04-28 23:41:55,548 INFO L241 Difference]: Finished difference. Result has 42 places, 28 transitions, 151 flow [2021-04-28 23:41:55,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=151, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2021-04-28 23:41:55,549 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -36 predicate places. [2021-04-28 23:41:55,549 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:55,549 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 28 transitions, 151 flow [2021-04-28 23:41:55,549 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 28 transitions, 151 flow [2021-04-28 23:41:55,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 28 transitions, 151 flow [2021-04-28 23:41:55,615 INFO L129 PetriNetUnfolder]: 252/457 cut-off events. [2021-04-28 23:41:55,616 INFO L130 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2021-04-28 23:41:55,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1906 conditions, 457 events. 252/457 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 2500 event pairs, 144 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 1895. Up to 418 conditions per place. [2021-04-28 23:41:55,622 INFO L146 LiptonReduction]: Number of co-enabled transitions 68 [2021-04-28 23:41:55,757 INFO L158 LiptonReduction]: Checked pairs total: 16 [2021-04-28 23:41:55,757 INFO L160 LiptonReduction]: Total number of compositions: 4 [2021-04-28 23:41:55,758 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 209 [2021-04-28 23:41:55,759 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 157 flow [2021-04-28 23:41:55,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 104.75) internal successors, (419), 4 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) [2021-04-28 23:41:55,760 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:55,760 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:55,760 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 23:41:55,760 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:55,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:55,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1566145604, now seen corresponding path program 1 times [2021-04-28 23:41:55,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:55,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266350629] [2021-04-28 23:41:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:55,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:55,809 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:55,814 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:41:55,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:41:55,819 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:41:55,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:55,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:55,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266350629] [2021-04-28 23:41:55,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:55,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:41:55,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661909465] [2021-04-28 23:41:55,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:41:55,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:55,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:41:55,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:41:55,833 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 171 [2021-04-28 23:41:55,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:55,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 171 [2021-04-28 23:41:55,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:55,966 INFO L129 PetriNetUnfolder]: 207/487 cut-off events. [2021-04-28 23:41:55,966 INFO L130 PetriNetUnfolder]: For 368/395 co-relation queries the response was YES. [2021-04-28 23:41:55,968 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2516 conditions, 487 events. 207/487 cut-off events. For 368/395 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 3163 event pairs, 27 based on Foata normal form. 23/254 useless extension candidates. Maximal degree in co-relation 2503. Up to 442 conditions per place. [2021-04-28 23:41:55,970 INFO L132 encePairwiseOnDemand]: 156/171 looper letters, 5 selfloop transitions, 13 changer transitions 30/57 dead transitions. [2021-04-28 23:41:55,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 57 transitions, 460 flow [2021-04-28 23:41:55,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 23:41:55,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 23:41:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2021-04-28 23:41:55,974 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6608187134502924 [2021-04-28 23:41:55,974 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2021-04-28 23:41:55,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2021-04-28 23:41:55,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:55,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2021-04-28 23:41:55,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,981 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 171.0) internal successors, (1197), 7 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:55,981 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 157 flow. Second operand 6 states and 678 transitions. [2021-04-28 23:41:55,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 57 transitions, 460 flow [2021-04-28 23:41:55,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 57 transitions, 451 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 23:41:55,988 INFO L241 Difference]: Finished difference. Result has 47 places, 27 transitions, 199 flow [2021-04-28 23:41:55,988 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=199, PETRI_PLACES=47, PETRI_TRANSITIONS=27} [2021-04-28 23:41:55,989 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -31 predicate places. [2021-04-28 23:41:55,989 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:55,989 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 27 transitions, 199 flow [2021-04-28 23:41:55,989 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 27 transitions, 199 flow [2021-04-28 23:41:55,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 27 transitions, 199 flow [2021-04-28 23:41:56,013 INFO L129 PetriNetUnfolder]: 36/178 cut-off events. [2021-04-28 23:41:56,013 INFO L130 PetriNetUnfolder]: For 290/322 co-relation queries the response was YES. [2021-04-28 23:41:56,014 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 178 events. 36/178 cut-off events. For 290/322 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1265 event pairs, 27 based on Foata normal form. 1/106 useless extension candidates. Maximal degree in co-relation 1092. Up to 142 conditions per place. [2021-04-28 23:41:56,016 INFO L146 LiptonReduction]: Number of co-enabled transitions 40 [2021-04-28 23:41:56,270 INFO L158 LiptonReduction]: Checked pairs total: 12 [2021-04-28 23:41:56,270 INFO L160 LiptonReduction]: Total number of compositions: 6 [2021-04-28 23:41:56,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 282 [2021-04-28 23:41:56,272 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 205 flow [2021-04-28 23:41:56,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 105.8) internal successors, (529), 5 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:41:56,273 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:41:56,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 23:41:56,274 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:41:56,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:41:56,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1167570157, now seen corresponding path program 1 times [2021-04-28 23:41:56,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:41:56,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226229179] [2021-04-28 23:41:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:41:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:41:56,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:56,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:56,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:41:56,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:41:56,322 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-28 23:41:56,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-28 23:41:56,328 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 23:41:56,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 23:41:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:41:56,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226229179] [2021-04-28 23:41:56,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:41:56,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 23:41:56,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520114478] [2021-04-28 23:41:56,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 23:41:56,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:41:56,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 23:41:56,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 23:41:56,342 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 177 [2021-04-28 23:41:56,344 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 205 flow. Second operand has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,344 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:41:56,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 177 [2021-04-28 23:41:56,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:41:56,433 INFO L129 PetriNetUnfolder]: 9/157 cut-off events. [2021-04-28 23:41:56,434 INFO L130 PetriNetUnfolder]: For 294/294 co-relation queries the response was YES. [2021-04-28 23:41:56,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 976 conditions, 157 events. 9/157 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 1306 event pairs, 0 based on Foata normal form. 9/114 useless extension candidates. Maximal degree in co-relation 966. Up to 115 conditions per place. [2021-04-28 23:41:56,435 INFO L132 encePairwiseOnDemand]: 159/177 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2021-04-28 23:41:56,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 30 transitions, 286 flow [2021-04-28 23:41:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 23:41:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 23:41:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 757 transitions. [2021-04-28 23:41:56,438 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6109765940274415 [2021-04-28 23:41:56,439 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 757 transitions. [2021-04-28 23:41:56,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 757 transitions. [2021-04-28 23:41:56,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:41:56,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 757 transitions. [2021-04-28 23:41:56,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 108.14285714285714) internal successors, (757), 7 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,445 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,446 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 177.0) internal successors, (1416), 8 states have internal predecessors, (1416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,446 INFO L185 Difference]: Start difference. First operand has 43 places, 27 transitions, 205 flow. Second operand 7 states and 757 transitions. [2021-04-28 23:41:56,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 30 transitions, 286 flow [2021-04-28 23:41:56,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 30 transitions, 215 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-04-28 23:41:56,450 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-04-28 23:41:56,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=177, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-04-28 23:41:56,451 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -36 predicate places. [2021-04-28 23:41:56,451 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:41:56,451 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:41:56,451 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-28 23:41:56,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:41:56,452 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:41:56,452 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:41:56,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-28 23:41:56,452 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:41:56,452 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:41:56,452 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:41:56,453 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:41:56,454 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:41:56,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:41:56,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 23:41:56,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:41:56 BasicIcfg [2021-04-28 23:41:56,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:41:56,461 INFO L168 Benchmark]: Toolchain (without parser) took 13342.41 ms. Allocated memory was 308.3 MB in the beginning and 446.7 MB in the end (delta: 138.4 MB). Free memory was 282.1 MB in the beginning and 254.5 MB in the end (delta: 27.6 MB). Peak memory consumption was 168.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:56,462 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 308.3 MB. Free memory is still 276.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:41:56,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.86 ms. Allocated memory is still 308.3 MB. Free memory was 278.9 MB in the beginning and 279.5 MB in the end (delta: -562.4 kB). Peak memory consumption was 30.8 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:56,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.55 ms. Allocated memory is still 308.3 MB. Free memory was 279.5 MB in the beginning and 277.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:41:56,463 INFO L168 Benchmark]: Boogie Preprocessor took 30.97 ms. Allocated memory is still 308.3 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:56,464 INFO L168 Benchmark]: RCFGBuilder took 544.00 ms. Allocated memory is still 308.3 MB. Free memory was 275.3 MB in the beginning and 251.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:56,464 INFO L168 Benchmark]: TraceAbstraction took 11910.52 ms. Allocated memory was 308.3 MB in the beginning and 446.7 MB in the end (delta: 138.4 MB). Free memory was 251.1 MB in the beginning and 254.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 135.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:41:56,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 308.3 MB. Free memory is still 276.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 749.86 ms. Allocated memory is still 308.3 MB. Free memory was 278.9 MB in the beginning and 279.5 MB in the end (delta: -562.4 kB). Peak memory consumption was 30.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 58.55 ms. Allocated memory is still 308.3 MB. Free memory was 279.5 MB in the beginning and 277.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.97 ms. Allocated memory is still 308.3 MB. Free memory was 277.4 MB in the beginning and 275.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 544.00 ms. Allocated memory is still 308.3 MB. Free memory was 275.3 MB in the beginning and 251.1 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 11910.52 ms. Allocated memory was 308.3 MB in the beginning and 446.7 MB in the end (delta: 138.4 MB). Free memory was 251.1 MB in the beginning and 254.5 MB in the end (delta: -3.3 MB). Peak memory consumption was 135.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8956.6ms, 67 PlacesBefore, 78 PlacesAfterwards, 58 TransitionsBefore, 68 TransitionsAfterwards, 812 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6023 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1736, positive: 1550, positive conditional: 1550, positive unconditional: 0, negative: 186, negative conditional: 186, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 831, positive: 782, positive conditional: 0, positive unconditional: 782, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 831, positive: 782, positive conditional: 0, positive unconditional: 782, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 831, positive: 770, positive conditional: 0, positive unconditional: 770, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 337, positive: 92, positive conditional: 0, positive unconditional: 92, negative: 245, negative conditional: 0, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1736, positive: 768, positive conditional: 768, positive unconditional: 0, negative: 137, negative conditional: 137, negative unconditional: 0, unknown: 831, unknown conditional: 831, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 826, Positive cache size: 777, Positive conditional cache size: 777, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.7ms, 78 PlacesBefore, 34 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 296 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 308 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 121, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 21, negative conditional: 21, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 33, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 121, positive: 69, positive conditional: 69, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 859, Positive cache size: 808, Positive conditional cache size: 808, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.8ms, 37 PlacesBefore, 37 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 346 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 168 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 66, positive conditional: 66, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 6, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 6, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 75, positive: 52, positive conditional: 52, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 874, Positive cache size: 822, Positive conditional cache size: 822, Positive unconditional cache size: 0, Negative cache size: 52, Negative conditional cache size: 52, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.2ms, 43 PlacesBefore, 43 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 302 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 78, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 2, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 2, positive unconditional: 6, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 78, positive: 60, positive conditional: 60, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 883, Positive cache size: 830, Positive conditional cache size: 830, Positive unconditional cache size: 0, Negative cache size: 53, Negative conditional cache size: 53, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.0ms, 43 PlacesBefore, 42 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 104 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 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: 43, positive: 32, positive conditional: 32, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 888, Positive cache size: 834, Positive conditional cache size: 834, Positive unconditional cache size: 0, Negative cache size: 54, Negative conditional cache size: 54, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.6ms, 44 PlacesBefore, 43 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 234 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 98 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37, positive: 30, positive conditional: 30, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 893, Positive cache size: 838, Positive conditional cache size: 838, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.7ms, 47 PlacesBefore, 47 PlacesAfterwards, 22 TransitionsBefore, 22 TransitionsAfterwards, 130 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 23, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 900, Positive cache size: 845, Positive conditional cache size: 845, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 208.3ms, 42 PlacesBefore, 41 PlacesAfterwards, 28 TransitionsBefore, 29 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 16 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 16, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 13, 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: 13, positive: 13, positive conditional: 0, positive unconditional: 13, 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: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 913, Positive cache size: 858, Positive conditional cache size: 858, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 281.1ms, 47 PlacesBefore, 43 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 12 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, 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: 12, positive: 12, positive conditional: 0, positive unconditional: 12, 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: 12, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 12, unknown conditional: 12, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 925, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 42 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 925, Positive cache size: 870, Positive conditional cache size: 870, Positive unconditional cache size: 0, Negative cache size: 55, Negative conditional cache size: 55, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 12.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 11751.6ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 856.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9098.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 66 SDtfs, 47 SDslu, 25 SDs, 0 SdLazy, 272 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 234.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 122.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=205occurred in iteration=8, InterpolantAutomatonStates: 43, 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: 25.8ms SsaConstructionTime, 244.5ms SatisfiabilityAnalysisTime, 537.4ms InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 381 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...