/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 11:18:38,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 11:18:38,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 11:18:38,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 11:18:38,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 11:18:38,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 11:18:38,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 11:18:38,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 11:18:38,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 11:18:38,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 11:18:38,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 11:18:38,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 11:18:38,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 11:18:38,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 11:18:38,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 11:18:38,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 11:18:38,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 11:18:38,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 11:18:38,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 11:18:38,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 11:18:38,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 11:18:38,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 11:18:38,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 11:18:38,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 11:18:38,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 11:18:38,625 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 11:18:38,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 11:18:38,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 11:18:38,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 11:18:38,628 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 11:18:38,628 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 11:18:38,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 11:18:38,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 11:18:38,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 11:18:38,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 11:18:38,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 11:18:38,633 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-VariableLbe.epf [2021-03-24 11:18:38,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 11:18:38,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 11:18:38,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 11:18:38,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 11:18:38,679 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 11:18:38,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 11:18:38,679 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 11:18:38,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 11:18:38,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 11:18:38,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 11:18:38,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 11:18:38,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 11:18:38,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:18:38,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 11:18:38,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 11:18:38,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 11:18:38,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 11:18:38,683 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 11:18:38,683 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 11:18:38,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 11:18:38,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 11:18:38,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 11:18:39,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 11:18:39,001 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 11:18:39,002 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 11:18:39,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-24 11:18:39,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a872fd86/f7d0a572dbef4f41a96e3634a79ac622/FLAG494ab80b1 [2021-03-24 11:18:39,633 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 11:18:39,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-24 11:18:39,655 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a872fd86/f7d0a572dbef4f41a96e3634a79ac622/FLAG494ab80b1 [2021-03-24 11:18:40,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a872fd86/f7d0a572dbef4f41a96e3634a79ac622 [2021-03-24 11:18:40,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 11:18:40,103 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 11:18:40,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 11:18:40,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 11:18:40,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 11:18:40,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc2c3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40, skipping insertion in model container [2021-03-24 11:18:40,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 11:18:40,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 11:18:40,285 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 11:18:40,613 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-24 11:18:40,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:18:40,634 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 11:18:40,644 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-24 11:18:40,674 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-24 11:18:40,682 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 11:18:40,915 INFO L208 MainTranslator]: Completed translation [2021-03-24 11:18:40,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40 WrapperNode [2021-03-24 11:18:40,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 11:18:40,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 11:18:40,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 11:18:40,917 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 11:18:40,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 11:18:40,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 11:18:40,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 11:18:40,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 11:18:40,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:40,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:41,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:41,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:41,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... [2021-03-24 11:18:41,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 11:18:41,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 11:18:41,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 11:18:41,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 11:18:41,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 11:18:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-24 11:18:41,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 11:18:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-24 11:18:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 11:18:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 11:18:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 11:18:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 11:18:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-24 11:18:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-24 11:18:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 11:18:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 11:18:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 11:18:41,084 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 11:18:41,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 11:18:41,704 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-24 11:18:41,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:18:41 BoogieIcfgContainer [2021-03-24 11:18:41,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 11:18:41,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 11:18:41,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 11:18:41,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 11:18:41,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 11:18:40" (1/3) ... [2021-03-24 11:18:41,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd84331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:18:41, skipping insertion in model container [2021-03-24 11:18:41,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 11:18:40" (2/3) ... [2021-03-24 11:18:41,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd84331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 11:18:41, skipping insertion in model container [2021-03-24 11:18:41,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 11:18:41" (3/3) ... [2021-03-24 11:18:41,712 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-03-24 11:18:41,716 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 11:18:41,720 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-24 11:18:41,721 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 11:18:41,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,749 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,749 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,750 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,750 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,751 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,752 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,753 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,754 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,755 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,756 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,757 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,758 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,759 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,760 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,761 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,763 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,763 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,763 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,763 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,764 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,766 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,766 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,767 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 11:18:41,773 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 11:18:41,788 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-24 11:18:41,805 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 11:18:41,805 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 11:18:41,805 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 11:18:41,805 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 11:18:41,805 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 11:18:41,806 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 11:18:41,806 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 11:18:41,806 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 11:18:41,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 152 places, 156 transitions, 334 flow [2021-03-24 11:18:41,866 INFO L129 PetriNetUnfolder]: 11/196 cut-off events. [2021-03-24 11:18:41,866 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:18:41,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 196 events. 11/196 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 358 event pairs, 0 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 111. Up to 4 conditions per place. [2021-03-24 11:18:41,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 156 transitions, 334 flow [2021-03-24 11:18:41,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 144 transitions, 306 flow [2021-03-24 11:18:41,877 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 11:18:41,884 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 144 transitions, 306 flow [2021-03-24 11:18:41,887 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 144 transitions, 306 flow [2021-03-24 11:18:41,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 142 places, 144 transitions, 306 flow [2021-03-24 11:18:41,914 INFO L129 PetriNetUnfolder]: 8/177 cut-off events. [2021-03-24 11:18:41,914 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 11:18:41,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 177 events. 8/177 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 300 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2021-03-24 11:18:41,917 INFO L142 LiptonReduction]: Number of co-enabled transitions 1512 [2021-03-24 11:18:44,502 INFO L154 LiptonReduction]: Checked pairs total: 1692 [2021-03-24 11:18:44,503 INFO L156 LiptonReduction]: Total number of compositions: 113 [2021-03-24 11:18:44,506 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2631 [2021-03-24 11:18:44,516 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 11:18:44,516 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 11:18:44,517 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:44,517 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:44,518 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:44,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:44,525 INFO L82 PathProgramCache]: Analyzing trace with hash 2133033277, now seen corresponding path program 1 times [2021-03-24 11:18:44,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:44,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537294778] [2021-03-24 11:18:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:44,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:44,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:44,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:44,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:44,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:44,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:44,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537294778] [2021-03-24 11:18:44,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:44,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:44,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607418178] [2021-03-24 11:18:44,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:44,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:44,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:44,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:44,884 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 269 [2021-03-24 11:18:44,887 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 62 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:44,887 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:44,887 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 269 [2021-03-24 11:18:44,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:45,122 INFO L129 PetriNetUnfolder]: 170/350 cut-off events. [2021-03-24 11:18:45,122 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-24 11:18:45,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 350 events. 170/350 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1484 event pairs, 165 based on Foata normal form. 1/321 useless extension candidates. Maximal degree in co-relation 587. Up to 316 conditions per place. [2021-03-24 11:18:45,129 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 29 selfloop transitions, 6 changer transitions 2/58 dead transitions. [2021-03-24 11:18:45,129 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 58 transitions, 208 flow [2021-03-24 11:18:45,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-24 11:18:45,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-24 11:18:45,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 618 transitions. [2021-03-24 11:18:45,148 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5743494423791822 [2021-03-24 11:18:45,149 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 618 transitions. [2021-03-24 11:18:45,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 618 transitions. [2021-03-24 11:18:45,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 618 transitions. [2021-03-24 11:18:45,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 154.5) internal successors, (618), 4 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,164 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 269.0) internal successors, (1345), 5 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,165 INFO L185 Difference]: Start difference. First operand has 61 places, 62 transitions, 142 flow. Second operand 4 states and 618 transitions. [2021-03-24 11:18:45,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 58 transitions, 208 flow [2021-03-24 11:18:45,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 58 transitions, 196 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 11:18:45,171 INFO L241 Difference]: Finished difference. Result has 57 places, 56 transitions, 142 flow [2021-03-24 11:18:45,172 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=57, PETRI_TRANSITIONS=56} [2021-03-24 11:18:45,173 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2021-03-24 11:18:45,173 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 56 transitions, 142 flow [2021-03-24 11:18:45,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 145.5) internal successors, (582), 4 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:45,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 11:18:45,174 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1151715474, now seen corresponding path program 1 times [2021-03-24 11:18:45,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:45,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571998436] [2021-03-24 11:18:45,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:45,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:45,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:45,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 11:18:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:45,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571998436] [2021-03-24 11:18:45,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:45,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 11:18:45,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515964550] [2021-03-24 11:18:45,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:45,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:45,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:45,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:45,289 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 269 [2021-03-24 11:18:45,289 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 56 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:45,290 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 269 [2021-03-24 11:18:45,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:45,407 INFO L129 PetriNetUnfolder]: 171/351 cut-off events. [2021-03-24 11:18:45,408 INFO L130 PetriNetUnfolder]: For 53/59 co-relation queries the response was YES. [2021-03-24 11:18:45,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 351 events. 171/351 cut-off events. For 53/59 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1565 event pairs, 93 based on Foata normal form. 3/324 useless extension candidates. Maximal degree in co-relation 668. Up to 182 conditions per place. [2021-03-24 11:18:45,412 INFO L132 encePairwiseOnDemand]: 259/269 looper letters, 34 selfloop transitions, 9 changer transitions 2/65 dead transitions. [2021-03-24 11:18:45,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 65 transitions, 250 flow [2021-03-24 11:18:45,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:18:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:18:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 765 transitions. [2021-03-24 11:18:45,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5687732342007435 [2021-03-24 11:18:45,423 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 765 transitions. [2021-03-24 11:18:45,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 765 transitions. [2021-03-24 11:18:45,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 765 transitions. [2021-03-24 11:18:45,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 153.0) internal successors, (765), 5 states have internal predecessors, (765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,431 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,431 INFO L185 Difference]: Start difference. First operand has 57 places, 56 transitions, 142 flow. Second operand 5 states and 765 transitions. [2021-03-24 11:18:45,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 65 transitions, 250 flow [2021-03-24 11:18:45,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 65 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 11:18:45,433 INFO L241 Difference]: Finished difference. Result has 58 places, 56 transitions, 165 flow [2021-03-24 11:18:45,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=165, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2021-03-24 11:18:45,434 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2021-03-24 11:18:45,434 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 165 flow [2021-03-24 11:18:45,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:45,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 11:18:45,435 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:45,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1795439088, now seen corresponding path program 1 times [2021-03-24 11:18:45,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:45,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917561405] [2021-03-24 11:18:45,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:45,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:45,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:18:45,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:45,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917561405] [2021-03-24 11:18:45,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:45,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:18:45,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209508560] [2021-03-24 11:18:45,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:18:45,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:45,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:18:45,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:18:45,558 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 269 [2021-03-24 11:18:45,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:45,559 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 269 [2021-03-24 11:18:45,559 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:45,667 INFO L129 PetriNetUnfolder]: 265/517 cut-off events. [2021-03-24 11:18:45,668 INFO L130 PetriNetUnfolder]: For 95/101 co-relation queries the response was YES. [2021-03-24 11:18:45,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 517 events. 265/517 cut-off events. For 95/101 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2402 event pairs, 118 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 604. Up to 389 conditions per place. [2021-03-24 11:18:45,671 INFO L132 encePairwiseOnDemand]: 262/269 looper letters, 36 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2021-03-24 11:18:45,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 270 flow [2021-03-24 11:18:45,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:18:45,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:18:45,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 532 transitions. [2021-03-24 11:18:45,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6592317224287485 [2021-03-24 11:18:45,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 532 transitions. [2021-03-24 11:18:45,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 532 transitions. [2021-03-24 11:18:45,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 532 transitions. [2021-03-24 11:18:45,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.33333333333334) internal successors, (532), 3 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,677 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,677 INFO L185 Difference]: Start difference. First operand has 58 places, 56 transitions, 165 flow. Second operand 3 states and 532 transitions. [2021-03-24 11:18:45,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 270 flow [2021-03-24 11:18:45,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 64 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:45,680 INFO L241 Difference]: Finished difference. Result has 57 places, 59 transitions, 189 flow [2021-03-24 11:18:45,681 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2021-03-24 11:18:45,681 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2021-03-24 11:18:45,681 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 189 flow [2021-03-24 11:18:45,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,681 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,681 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:45,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 11:18:45,682 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:45,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,682 INFO L82 PathProgramCache]: Analyzing trace with hash -175963519, now seen corresponding path program 1 times [2021-03-24 11:18:45,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:45,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125829650] [2021-03-24 11:18:45,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:45,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:45,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:45,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:18:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:45,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125829650] [2021-03-24 11:18:45,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:45,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 11:18:45,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086643419] [2021-03-24 11:18:45,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 11:18:45,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:45,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 11:18:45,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 11:18:45,752 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 269 [2021-03-24 11:18:45,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 59 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:45,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 269 [2021-03-24 11:18:45,753 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:45,860 INFO L129 PetriNetUnfolder]: 292/572 cut-off events. [2021-03-24 11:18:45,861 INFO L130 PetriNetUnfolder]: For 337/353 co-relation queries the response was YES. [2021-03-24 11:18:45,862 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 572 events. 292/572 cut-off events. For 337/353 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2775 event pairs, 130 based on Foata normal form. 32/594 useless extension candidates. Maximal degree in co-relation 829. Up to 426 conditions per place. [2021-03-24 11:18:45,864 INFO L132 encePairwiseOnDemand]: 263/269 looper letters, 38 selfloop transitions, 9 changer transitions 7/71 dead transitions. [2021-03-24 11:18:45,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 71 transitions, 343 flow [2021-03-24 11:18:45,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 11:18:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 11:18:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2021-03-24 11:18:45,866 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6579925650557621 [2021-03-24 11:18:45,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2021-03-24 11:18:45,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2021-03-24 11:18:45,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2021-03-24 11:18:45,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 269.0) internal successors, (1076), 4 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,870 INFO L185 Difference]: Start difference. First operand has 57 places, 59 transitions, 189 flow. Second operand 3 states and 531 transitions. [2021-03-24 11:18:45,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 71 transitions, 343 flow [2021-03-24 11:18:45,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 71 transitions, 328 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-24 11:18:45,876 INFO L241 Difference]: Finished difference. Result has 59 places, 60 transitions, 235 flow [2021-03-24 11:18:45,876 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=59, PETRI_TRANSITIONS=60} [2021-03-24 11:18:45,876 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2021-03-24 11:18:45,876 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 60 transitions, 235 flow [2021-03-24 11:18:45,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,877 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,880 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:45,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 11:18:45,880 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash -826040707, now seen corresponding path program 1 times [2021-03-24 11:18:45,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:45,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463772223] [2021-03-24 11:18:45,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:45,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:45,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:45,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:18:45,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:45,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:45,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:45,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463772223] [2021-03-24 11:18:45,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:45,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-24 11:18:45,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18335658] [2021-03-24 11:18:45,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 11:18:45,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:45,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 11:18:45,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 11:18:45,962 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 269 [2021-03-24 11:18:45,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 60 transitions, 235 flow. Second operand has 4 states, 4 states have (on average 221.5) internal successors, (886), 4 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:45,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 269 [2021-03-24 11:18:45,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:45,983 INFO L129 PetriNetUnfolder]: 6/63 cut-off events. [2021-03-24 11:18:45,983 INFO L130 PetriNetUnfolder]: For 29/55 co-relation queries the response was YES. [2021-03-24 11:18:45,983 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 63 events. 6/63 cut-off events. For 29/55 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 127 event pairs, 4 based on Foata normal form. 21/81 useless extension candidates. Maximal degree in co-relation 109. Up to 14 conditions per place. [2021-03-24 11:18:45,984 INFO L132 encePairwiseOnDemand]: 264/269 looper letters, 2 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2021-03-24 11:18:45,984 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 140 flow [2021-03-24 11:18:45,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 11:18:45,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 11:18:45,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1107 transitions. [2021-03-24 11:18:45,986 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8230483271375465 [2021-03-24 11:18:45,987 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1107 transitions. [2021-03-24 11:18:45,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1107 transitions. [2021-03-24 11:18:45,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:45,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1107 transitions. [2021-03-24 11:18:45,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 221.4) internal successors, (1107), 5 states have internal predecessors, (1107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,994 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 269.0) internal successors, (1614), 6 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,994 INFO L185 Difference]: Start difference. First operand has 59 places, 60 transitions, 235 flow. Second operand 5 states and 1107 transitions. [2021-03-24 11:18:45,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 140 flow [2021-03-24 11:18:45,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 43 transitions, 124 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:45,998 INFO L241 Difference]: Finished difference. Result has 50 places, 43 transitions, 120 flow [2021-03-24 11:18:45,998 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2021-03-24 11:18:45,998 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -11 predicate places. [2021-03-24 11:18:45,998 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 120 flow [2021-03-24 11:18:45,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 221.5) internal successors, (886), 4 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:45,999 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:45,999 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:45,999 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 11:18:45,999 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:45,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1314108378, now seen corresponding path program 1 times [2021-03-24 11:18:46,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:46,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068942822] [2021-03-24 11:18:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:46,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:46,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:46,189 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:46,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:46,212 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,227 INFO L142 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-03-24 11:18:46,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:46,242 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:46,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:46,261 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:46,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:46,271 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,286 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,289 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:46,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:46,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:46,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068942822] [2021-03-24 11:18:46,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:46,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-24 11:18:46,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845730225] [2021-03-24 11:18:46,304 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-24 11:18:46,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:46,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-24 11:18:46,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-24 11:18:46,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 269 [2021-03-24 11:18:46,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 120 flow. Second operand has 9 states, 9 states have (on average 138.88888888888889) internal successors, (1250), 9 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:46,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 269 [2021-03-24 11:18:46,309 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:46,686 INFO L129 PetriNetUnfolder]: 145/337 cut-off events. [2021-03-24 11:18:46,686 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2021-03-24 11:18:46,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 337 events. 145/337 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1395 event pairs, 33 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 791. Up to 92 conditions per place. [2021-03-24 11:18:46,688 INFO L132 encePairwiseOnDemand]: 260/269 looper letters, 52 selfloop transitions, 15 changer transitions 0/80 dead transitions. [2021-03-24 11:18:46,688 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 80 transitions, 360 flow [2021-03-24 11:18:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-24 11:18:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-24 11:18:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1290 transitions. [2021-03-24 11:18:46,692 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5328376703841388 [2021-03-24 11:18:46,692 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1290 transitions. [2021-03-24 11:18:46,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1290 transitions. [2021-03-24 11:18:46,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:46,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1290 transitions. [2021-03-24 11:18:46,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.33333333333334) internal successors, (1290), 9 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,699 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,699 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 269.0) internal successors, (2690), 10 states have internal predecessors, (2690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,699 INFO L185 Difference]: Start difference. First operand has 50 places, 43 transitions, 120 flow. Second operand 9 states and 1290 transitions. [2021-03-24 11:18:46,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 80 transitions, 360 flow [2021-03-24 11:18:46,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 80 transitions, 353 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:46,701 INFO L241 Difference]: Finished difference. Result has 57 places, 52 transitions, 197 flow [2021-03-24 11:18:46,702 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=197, PETRI_PLACES=57, PETRI_TRANSITIONS=52} [2021-03-24 11:18:46,702 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, -4 predicate places. [2021-03-24 11:18:46,702 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 52 transitions, 197 flow [2021-03-24 11:18:46,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 138.88888888888889) internal successors, (1250), 9 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:46,703 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:46,703 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:46,703 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 11:18:46,703 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:46,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:46,704 INFO L82 PathProgramCache]: Analyzing trace with hash 526721688, now seen corresponding path program 2 times [2021-03-24 11:18:46,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:46,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505201392] [2021-03-24 11:18:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:46,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:46,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:46,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:46,879 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:46,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:46,903 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,918 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,932 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:46,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:46,949 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-03-24 11:18:46,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:46,965 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:46,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:46,979 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,995 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:46,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:46,996 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:46,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:47,009 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505201392] [2021-03-24 11:18:47,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:47,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 11:18:47,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264323459] [2021-03-24 11:18:47,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 11:18:47,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:47,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 11:18:47,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-03-24 11:18:47,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 269 [2021-03-24 11:18:47,015 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 52 transitions, 197 flow. Second operand has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:47,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 269 [2021-03-24 11:18:47,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:47,616 INFO L129 PetriNetUnfolder]: 158/401 cut-off events. [2021-03-24 11:18:47,616 INFO L130 PetriNetUnfolder]: For 349/349 co-relation queries the response was YES. [2021-03-24 11:18:47,617 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1133 conditions, 401 events. 158/401 cut-off events. For 349/349 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1931 event pairs, 8 based on Foata normal form. 1/402 useless extension candidates. Maximal degree in co-relation 1125. Up to 117 conditions per place. [2021-03-24 11:18:47,619 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 57 selfloop transitions, 33 changer transitions 0/104 dead transitions. [2021-03-24 11:18:47,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 104 transitions, 602 flow [2021-03-24 11:18:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:18:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:18:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1705 transitions. [2021-03-24 11:18:47,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5281908302354399 [2021-03-24 11:18:47,624 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1705 transitions. [2021-03-24 11:18:47,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1705 transitions. [2021-03-24 11:18:47,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:47,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1705 transitions. [2021-03-24 11:18:47,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 142.08333333333334) internal successors, (1705), 12 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,634 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,634 INFO L185 Difference]: Start difference. First operand has 57 places, 52 transitions, 197 flow. Second operand 12 states and 1705 transitions. [2021-03-24 11:18:47,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 104 transitions, 602 flow [2021-03-24 11:18:47,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 589 flow, removed 4 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:47,639 INFO L241 Difference]: Finished difference. Result has 68 places, 74 transitions, 430 flow [2021-03-24 11:18:47,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=430, PETRI_PLACES=68, PETRI_TRANSITIONS=74} [2021-03-24 11:18:47,639 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2021-03-24 11:18:47,639 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 74 transitions, 430 flow [2021-03-24 11:18:47,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,640 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:47,640 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:47,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 11:18:47,640 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:47,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:47,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1357269728, now seen corresponding path program 3 times [2021-03-24 11:18:47,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:47,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113350379] [2021-03-24 11:18:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:47,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:47,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:47,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:47,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:47,808 INFO L142 QuantifierPusher]: treesize reduction 22, result has 47.6 percent of original size [2021-03-24 11:18:47,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:18:47,828 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:47,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:47,841 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-24 11:18:47,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:47,861 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-24 11:18:47,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:47,877 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:47,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:47,894 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-24 11:18:47,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:47,905 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:47,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:47,920 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:47,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113350379] [2021-03-24 11:18:47,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:47,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 11:18:47,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092931906] [2021-03-24 11:18:47,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 11:18:47,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:47,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 11:18:47,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-24 11:18:47,937 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 269 [2021-03-24 11:18:47,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 74 transitions, 430 flow. Second operand has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:47,939 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:47,939 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 269 [2021-03-24 11:18:47,939 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:48,457 INFO L129 PetriNetUnfolder]: 215/578 cut-off events. [2021-03-24 11:18:48,457 INFO L130 PetriNetUnfolder]: For 1050/1054 co-relation queries the response was YES. [2021-03-24 11:18:48,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 578 events. 215/578 cut-off events. For 1050/1054 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3354 event pairs, 48 based on Foata normal form. 1/578 useless extension candidates. Maximal degree in co-relation 1913. Up to 172 conditions per place. [2021-03-24 11:18:48,461 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 67 selfloop transitions, 49 changer transitions 0/130 dead transitions. [2021-03-24 11:18:48,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 130 transitions, 993 flow [2021-03-24 11:18:48,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 11:18:48,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 11:18:48,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1571 transitions. [2021-03-24 11:18:48,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5309226089895235 [2021-03-24 11:18:48,466 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1571 transitions. [2021-03-24 11:18:48,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1571 transitions. [2021-03-24 11:18:48,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:48,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1571 transitions. [2021-03-24 11:18:48,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 142.8181818181818) internal successors, (1571), 11 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:48,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 269.0) internal successors, (3228), 12 states have internal predecessors, (3228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:48,476 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 269.0) internal successors, (3228), 12 states have internal predecessors, (3228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:48,476 INFO L185 Difference]: Start difference. First operand has 68 places, 74 transitions, 430 flow. Second operand 11 states and 1571 transitions. [2021-03-24 11:18:48,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 130 transitions, 993 flow [2021-03-24 11:18:48,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 130 transitions, 913 flow, removed 35 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:48,485 INFO L241 Difference]: Finished difference. Result has 81 places, 97 transitions, 759 flow [2021-03-24 11:18:48,485 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=759, PETRI_PLACES=81, PETRI_TRANSITIONS=97} [2021-03-24 11:18:48,485 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 20 predicate places. [2021-03-24 11:18:48,485 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 97 transitions, 759 flow [2021-03-24 11:18:48,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:48,486 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:48,486 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:48,486 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 11:18:48,486 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:48,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:48,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1158341096, now seen corresponding path program 4 times [2021-03-24 11:18:48,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:48,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047588116] [2021-03-24 11:18:48,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:48,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:48,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:48,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:48,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:48,660 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:48,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:48,672 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:48,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:48,684 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:48,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:48,698 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-24 11:18:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:48,714 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 11:18:48,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:48,735 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:48,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:48,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:48,761 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:48,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:48,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:48,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047588116] [2021-03-24 11:18:48,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:48,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-24 11:18:48,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465367549] [2021-03-24 11:18:48,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-24 11:18:48,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:48,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-24 11:18:48,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-03-24 11:18:48,779 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 269 [2021-03-24 11:18:48,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 97 transitions, 759 flow. Second operand has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:48,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:48,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 269 [2021-03-24 11:18:48,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:49,363 INFO L129 PetriNetUnfolder]: 233/675 cut-off events. [2021-03-24 11:18:49,363 INFO L130 PetriNetUnfolder]: For 1843/1847 co-relation queries the response was YES. [2021-03-24 11:18:49,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 675 events. 233/675 cut-off events. For 1843/1847 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4219 event pairs, 27 based on Foata normal form. 5/680 useless extension candidates. Maximal degree in co-relation 2414. Up to 159 conditions per place. [2021-03-24 11:18:49,370 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 75 selfloop transitions, 70 changer transitions 0/159 dead transitions. [2021-03-24 11:18:49,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 159 transitions, 1433 flow [2021-03-24 11:18:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:18:49,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:18:49,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1717 transitions. [2021-03-24 11:18:49,375 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.531908302354399 [2021-03-24 11:18:49,375 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1717 transitions. [2021-03-24 11:18:49,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1717 transitions. [2021-03-24 11:18:49,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:49,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1717 transitions. [2021-03-24 11:18:49,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 143.08333333333334) internal successors, (1717), 12 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,384 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,384 INFO L185 Difference]: Start difference. First operand has 81 places, 97 transitions, 759 flow. Second operand 12 states and 1717 transitions. [2021-03-24 11:18:49,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 159 transitions, 1433 flow [2021-03-24 11:18:49,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 159 transitions, 1382 flow, removed 23 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:49,394 INFO L241 Difference]: Finished difference. Result has 94 places, 121 transitions, 1238 flow [2021-03-24 11:18:49,394 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1238, PETRI_PLACES=94, PETRI_TRANSITIONS=121} [2021-03-24 11:18:49,395 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 33 predicate places. [2021-03-24 11:18:49,395 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 121 transitions, 1238 flow [2021-03-24 11:18:49,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 138.5) internal successors, (1385), 10 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:49,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:49,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 11:18:49,396 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:49,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1760600292, now seen corresponding path program 5 times [2021-03-24 11:18:49,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:49,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471736614] [2021-03-24 11:18:49,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:49,528 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:49,529 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:49,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:49,542 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:49,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:49,563 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:49,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:49,575 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:49,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:49,596 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:49,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:49,613 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-24 11:18:49,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:49,659 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-03-24 11:18:49,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:49,682 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:49,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:49,700 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:49,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:49,717 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:49,718 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:49,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:49,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:49,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471736614] [2021-03-24 11:18:49,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:49,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:49,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241343936] [2021-03-24 11:18:49,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:49,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:49,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:49,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:49,743 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:49,745 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 121 transitions, 1238 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:49,745 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:49,745 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:49,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:50,680 INFO L129 PetriNetUnfolder]: 366/1063 cut-off events. [2021-03-24 11:18:50,680 INFO L130 PetriNetUnfolder]: For 4414/4416 co-relation queries the response was YES. [2021-03-24 11:18:50,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4258 conditions, 1063 events. 366/1063 cut-off events. For 4414/4416 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 7565 event pairs, 67 based on Foata normal form. 2/1062 useless extension candidates. Maximal degree in co-relation 4236. Up to 204 conditions per place. [2021-03-24 11:18:50,689 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 141 selfloop transitions, 82 changer transitions 0/235 dead transitions. [2021-03-24 11:18:50,689 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 235 transitions, 2703 flow [2021-03-24 11:18:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 11:18:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 11:18:50,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1818 transitions. [2021-03-24 11:18:50,694 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.519874177866743 [2021-03-24 11:18:50,695 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1818 transitions. [2021-03-24 11:18:50,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1818 transitions. [2021-03-24 11:18:50,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:50,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1818 transitions. [2021-03-24 11:18:50,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 139.84615384615384) internal successors, (1818), 13 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:50,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:50,705 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:50,705 INFO L185 Difference]: Start difference. First operand has 94 places, 121 transitions, 1238 flow. Second operand 13 states and 1818 transitions. [2021-03-24 11:18:50,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 235 transitions, 2703 flow [2021-03-24 11:18:50,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 235 transitions, 2654 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-24 11:18:50,729 INFO L241 Difference]: Finished difference. Result has 106 places, 168 transitions, 2057 flow [2021-03-24 11:18:50,730 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=2057, PETRI_PLACES=106, PETRI_TRANSITIONS=168} [2021-03-24 11:18:50,730 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 45 predicate places. [2021-03-24 11:18:50,730 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 168 transitions, 2057 flow [2021-03-24 11:18:50,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:50,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:50,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:50,743 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 11:18:50,743 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:50,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:50,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1990344402, now seen corresponding path program 6 times [2021-03-24 11:18:50,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:50,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867156255] [2021-03-24 11:18:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:50,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:50,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:50,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:50,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:50,855 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-24 11:18:50,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:50,875 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:50,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:50,887 INFO L142 QuantifierPusher]: treesize reduction 12, result has 65.7 percent of original size [2021-03-24 11:18:50,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:50,905 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:50,923 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 11:18:50,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:18:50,943 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.0 percent of original size [2021-03-24 11:18:50,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:50,958 INFO L142 QuantifierPusher]: treesize reduction 11, result has 71.8 percent of original size [2021-03-24 11:18:50,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:18:50,975 INFO L142 QuantifierPusher]: treesize reduction 11, result has 62.1 percent of original size [2021-03-24 11:18:50,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:50,990 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:50,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:51,006 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:51,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:51,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:51,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:51,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867156255] [2021-03-24 11:18:51,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:51,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:51,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758976806] [2021-03-24 11:18:51,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:51,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:51,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:51,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:51,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:51,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 168 transitions, 2057 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:51,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:51,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:51,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:52,019 INFO L129 PetriNetUnfolder]: 424/1204 cut-off events. [2021-03-24 11:18:52,019 INFO L130 PetriNetUnfolder]: For 7592/7604 co-relation queries the response was YES. [2021-03-24 11:18:52,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5552 conditions, 1204 events. 424/1204 cut-off events. For 7592/7604 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 8800 event pairs, 71 based on Foata normal form. 11/1210 useless extension candidates. Maximal degree in co-relation 5524. Up to 533 conditions per place. [2021-03-24 11:18:52,031 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 128 selfloop transitions, 99 changer transitions 0/239 dead transitions. [2021-03-24 11:18:52,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 239 transitions, 3124 flow [2021-03-24 11:18:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:18:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:18:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2072 transitions. [2021-03-24 11:18:52,036 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5135068153655514 [2021-03-24 11:18:52,036 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2072 transitions. [2021-03-24 11:18:52,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2072 transitions. [2021-03-24 11:18:52,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:52,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2072 transitions. [2021-03-24 11:18:52,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 138.13333333333333) internal successors, (2072), 15 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,046 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,046 INFO L185 Difference]: Start difference. First operand has 106 places, 168 transitions, 2057 flow. Second operand 15 states and 2072 transitions. [2021-03-24 11:18:52,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 239 transitions, 3124 flow [2021-03-24 11:18:52,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 239 transitions, 3093 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-03-24 11:18:52,075 INFO L241 Difference]: Finished difference. Result has 120 places, 190 transitions, 2625 flow [2021-03-24 11:18:52,076 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=2027, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2625, PETRI_PLACES=120, PETRI_TRANSITIONS=190} [2021-03-24 11:18:52,076 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 59 predicate places. [2021-03-24 11:18:52,076 INFO L480 AbstractCegarLoop]: Abstraction has has 120 places, 190 transitions, 2625 flow [2021-03-24 11:18:52,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:52,076 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:52,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 11:18:52,077 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:52,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:52,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1311061242, now seen corresponding path program 7 times [2021-03-24 11:18:52,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:52,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265310233] [2021-03-24 11:18:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:52,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:52,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:52,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:52,181 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:52,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:52,197 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:52,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:52,206 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-24 11:18:52,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:52,222 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:52,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:52,236 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 11:18:52,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:52,252 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:52,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:52,273 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:52,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:52,289 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:52,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:52,305 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:52,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:52,306 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:52,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:52,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:52,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265310233] [2021-03-24 11:18:52,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:52,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:52,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233395350] [2021-03-24 11:18:52,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:52,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:52,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:52,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:52,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:52,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 190 transitions, 2625 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:52,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:52,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:52,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:53,159 INFO L129 PetriNetUnfolder]: 428/1256 cut-off events. [2021-03-24 11:18:53,160 INFO L130 PetriNetUnfolder]: For 9666/9682 co-relation queries the response was YES. [2021-03-24 11:18:53,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6181 conditions, 1256 events. 428/1256 cut-off events. For 9666/9682 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9416 event pairs, 70 based on Foata normal form. 15/1265 useless extension candidates. Maximal degree in co-relation 6150. Up to 445 conditions per place. [2021-03-24 11:18:53,173 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 115 selfloop transitions, 118 changer transitions 0/245 dead transitions. [2021-03-24 11:18:53,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 245 transitions, 3466 flow [2021-03-24 11:18:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:18:53,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:18:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2075 transitions. [2021-03-24 11:18:53,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5142503097893433 [2021-03-24 11:18:53,179 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2075 transitions. [2021-03-24 11:18:53,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2075 transitions. [2021-03-24 11:18:53,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:53,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2075 transitions. [2021-03-24 11:18:53,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 138.33333333333334) internal successors, (2075), 15 states have internal predecessors, (2075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,191 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,191 INFO L185 Difference]: Start difference. First operand has 120 places, 190 transitions, 2625 flow. Second operand 15 states and 2075 transitions. [2021-03-24 11:18:53,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 245 transitions, 3466 flow [2021-03-24 11:18:53,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 245 transitions, 3334 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-03-24 11:18:53,233 INFO L241 Difference]: Finished difference. Result has 128 places, 196 transitions, 2961 flow [2021-03-24 11:18:53,234 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=2502, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2961, PETRI_PLACES=128, PETRI_TRANSITIONS=196} [2021-03-24 11:18:53,234 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 67 predicate places. [2021-03-24 11:18:53,234 INFO L480 AbstractCegarLoop]: Abstraction has has 128 places, 196 transitions, 2961 flow [2021-03-24 11:18:53,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,234 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:53,234 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:53,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 11:18:53,235 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1342562050, now seen corresponding path program 8 times [2021-03-24 11:18:53,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:53,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733387363] [2021-03-24 11:18:53,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:53,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:53,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:53,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:53,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:53,337 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:53,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:53,357 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:53,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:53,368 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-24 11:18:53,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:53,384 INFO L142 QuantifierPusher]: treesize reduction 10, result has 72.2 percent of original size [2021-03-24 11:18:53,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:53,402 INFO L142 QuantifierPusher]: treesize reduction 16, result has 71.4 percent of original size [2021-03-24 11:18:53,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 11:18:53,426 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:18:53,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:18:53,441 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.9 percent of original size [2021-03-24 11:18:53,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:18:53,451 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:18:53,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:18:53,463 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:53,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:53,477 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:53,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:53,483 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:53,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:53,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733387363] [2021-03-24 11:18:53,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:53,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:53,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988778056] [2021-03-24 11:18:53,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:53,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:53,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:53,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:53,499 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:53,500 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 196 transitions, 2961 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:53,501 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:53,501 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:53,501 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:54,696 INFO L129 PetriNetUnfolder]: 428/1273 cut-off events. [2021-03-24 11:18:54,697 INFO L130 PetriNetUnfolder]: For 11410/11418 co-relation queries the response was YES. [2021-03-24 11:18:54,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6520 conditions, 1273 events. 428/1273 cut-off events. For 11410/11418 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 9614 event pairs, 36 based on Foata normal form. 7/1278 useless extension candidates. Maximal degree in co-relation 6487. Up to 250 conditions per place. [2021-03-24 11:18:54,710 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 137 selfloop transitions, 129 changer transitions 0/278 dead transitions. [2021-03-24 11:18:54,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 278 transitions, 4212 flow [2021-03-24 11:18:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-24 11:18:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-24 11:18:54,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2361 transitions. [2021-03-24 11:18:54,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.516291274874262 [2021-03-24 11:18:54,715 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2361 transitions. [2021-03-24 11:18:54,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2361 transitions. [2021-03-24 11:18:54,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:54,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2361 transitions. [2021-03-24 11:18:54,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 138.88235294117646) internal successors, (2361), 17 states have internal predecessors, (2361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:54,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 269.0) internal successors, (4842), 18 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:54,727 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 269.0) internal successors, (4842), 18 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:54,727 INFO L185 Difference]: Start difference. First operand has 128 places, 196 transitions, 2961 flow. Second operand 17 states and 2361 transitions. [2021-03-24 11:18:54,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 278 transitions, 4212 flow [2021-03-24 11:18:54,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 278 transitions, 4105 flow, removed 4 selfloop flow, removed 9 redundant places. [2021-03-24 11:18:54,781 INFO L241 Difference]: Finished difference. Result has 141 places, 225 transitions, 3754 flow [2021-03-24 11:18:54,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=2867, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3754, PETRI_PLACES=141, PETRI_TRANSITIONS=225} [2021-03-24 11:18:54,782 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 80 predicate places. [2021-03-24 11:18:54,782 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 225 transitions, 3754 flow [2021-03-24 11:18:54,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:54,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:54,782 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:54,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 11:18:54,783 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:54,783 INFO L82 PathProgramCache]: Analyzing trace with hash -861609218, now seen corresponding path program 9 times [2021-03-24 11:18:54,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:54,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644759741] [2021-03-24 11:18:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:54,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:54,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:54,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:54,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:54,914 INFO L142 QuantifierPusher]: treesize reduction 17, result has 59.5 percent of original size [2021-03-24 11:18:54,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:54,934 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:54,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:54,945 INFO L142 QuantifierPusher]: treesize reduction 10, result has 69.7 percent of original size [2021-03-24 11:18:54,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:54,962 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-24 11:18:54,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:54,978 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 11:18:54,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:54,995 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 11:18:54,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:55,019 INFO L142 QuantifierPusher]: treesize reduction 14, result has 68.2 percent of original size [2021-03-24 11:18:55,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:55,040 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:55,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:55,058 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:18:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:55,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:55,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:55,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644759741] [2021-03-24 11:18:55,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:55,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:55,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262930118] [2021-03-24 11:18:55,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:55,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:55,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:55,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:55,079 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:55,080 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 225 transitions, 3754 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:55,080 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:55,080 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:55,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:56,068 INFO L129 PetriNetUnfolder]: 438/1310 cut-off events. [2021-03-24 11:18:56,069 INFO L130 PetriNetUnfolder]: For 14174/14184 co-relation queries the response was YES. [2021-03-24 11:18:56,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7152 conditions, 1310 events. 438/1310 cut-off events. For 14174/14184 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 10063 event pairs, 101 based on Foata normal form. 9/1313 useless extension candidates. Maximal degree in co-relation 7113. Up to 357 conditions per place. [2021-03-24 11:18:56,085 INFO L132 encePairwiseOnDemand]: 257/269 looper letters, 161 selfloop transitions, 119 changer transitions 0/292 dead transitions. [2021-03-24 11:18:56,085 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 292 transitions, 4812 flow [2021-03-24 11:18:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 11:18:56,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 11:18:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2088 transitions. [2021-03-24 11:18:56,088 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5174721189591078 [2021-03-24 11:18:56,088 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2088 transitions. [2021-03-24 11:18:56,088 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2088 transitions. [2021-03-24 11:18:56,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:56,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2088 transitions. [2021-03-24 11:18:56,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 139.2) internal successors, (2088), 15 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,096 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 269.0) internal successors, (4304), 16 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,096 INFO L185 Difference]: Start difference. First operand has 141 places, 225 transitions, 3754 flow. Second operand 15 states and 2088 transitions. [2021-03-24 11:18:56,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 292 transitions, 4812 flow [2021-03-24 11:18:56,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 292 transitions, 4687 flow, removed 41 selfloop flow, removed 6 redundant places. [2021-03-24 11:18:56,172 INFO L241 Difference]: Finished difference. Result has 151 places, 231 transitions, 4028 flow [2021-03-24 11:18:56,173 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3644, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4028, PETRI_PLACES=151, PETRI_TRANSITIONS=231} [2021-03-24 11:18:56,173 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 90 predicate places. [2021-03-24 11:18:56,173 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 231 transitions, 4028 flow [2021-03-24 11:18:56,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:56,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:56,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 11:18:56,174 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:56,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:56,174 INFO L82 PathProgramCache]: Analyzing trace with hash -854570228, now seen corresponding path program 10 times [2021-03-24 11:18:56,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:56,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427216719] [2021-03-24 11:18:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:56,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:56,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:56,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:56,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:56,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:56,275 INFO L142 QuantifierPusher]: treesize reduction 30, result has 33.3 percent of original size [2021-03-24 11:18:56,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:56,285 INFO L142 QuantifierPusher]: treesize reduction 14, result has 54.8 percent of original size [2021-03-24 11:18:56,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,296 INFO L142 QuantifierPusher]: treesize reduction 14, result has 53.3 percent of original size [2021-03-24 11:18:56,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:56,312 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 11:18:56,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:18:56,342 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 11:18:56,343 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 11:18:56,380 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 11:18:56,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:56,411 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:18:56,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:56,427 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:56,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:56,429 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-24 11:18:56,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:56,440 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:56,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:56,454 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:56,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:56,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427216719] [2021-03-24 11:18:56,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:56,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:56,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291412700] [2021-03-24 11:18:56,468 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:56,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:56,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:56,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:56,469 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:56,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 231 transitions, 4028 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:56,471 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:56,471 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:56,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:57,252 INFO L129 PetriNetUnfolder]: 436/1318 cut-off events. [2021-03-24 11:18:57,253 INFO L130 PetriNetUnfolder]: For 15258/15266 co-relation queries the response was YES. [2021-03-24 11:18:57,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7408 conditions, 1318 events. 436/1318 cut-off events. For 15258/15266 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 10173 event pairs, 130 based on Foata normal form. 9/1320 useless extension candidates. Maximal degree in co-relation 7367. Up to 416 conditions per place. [2021-03-24 11:18:57,266 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 146 selfloop transitions, 104 changer transitions 0/262 dead transitions. [2021-03-24 11:18:57,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 262 transitions, 4658 flow [2021-03-24 11:18:57,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 11:18:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 11:18:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1671 transitions. [2021-03-24 11:18:57,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5176579925650557 [2021-03-24 11:18:57,269 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1671 transitions. [2021-03-24 11:18:57,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1671 transitions. [2021-03-24 11:18:57,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:57,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1671 transitions. [2021-03-24 11:18:57,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 139.25) internal successors, (1671), 12 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:57,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:57,275 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 269.0) internal successors, (3497), 13 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:57,275 INFO L185 Difference]: Start difference. First operand has 151 places, 231 transitions, 4028 flow. Second operand 12 states and 1671 transitions. [2021-03-24 11:18:57,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 262 transitions, 4658 flow [2021-03-24 11:18:57,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 262 transitions, 4493 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-03-24 11:18:57,348 INFO L241 Difference]: Finished difference. Result has 157 places, 233 transitions, 4154 flow [2021-03-24 11:18:57,349 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=3863, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4154, PETRI_PLACES=157, PETRI_TRANSITIONS=233} [2021-03-24 11:18:57,349 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 96 predicate places. [2021-03-24 11:18:57,349 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 233 transitions, 4154 flow [2021-03-24 11:18:57,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:57,349 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:57,350 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:57,350 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 11:18:57,350 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:57,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:57,350 INFO L82 PathProgramCache]: Analyzing trace with hash 949278538, now seen corresponding path program 11 times [2021-03-24 11:18:57,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:57,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705795388] [2021-03-24 11:18:57,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:57,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:57,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:57,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:57,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:57,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:57,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:57,475 INFO L142 QuantifierPusher]: treesize reduction 25, result has 37.5 percent of original size [2021-03-24 11:18:57,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:57,484 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:57,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:57,495 INFO L142 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-03-24 11:18:57,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:57,507 INFO L142 QuantifierPusher]: treesize reduction 10, result has 68.8 percent of original size [2021-03-24 11:18:57,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:57,525 INFO L142 QuantifierPusher]: treesize reduction 10, result has 71.4 percent of original size [2021-03-24 11:18:57,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:57,543 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 11:18:57,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:18:57,578 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 11:18:57,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 11:18:57,591 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:18:57,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:18:57,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 11:18:57,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:18:57,637 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:18:57,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:57,658 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:57,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:57,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705795388] [2021-03-24 11:18:57,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:57,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 11:18:57,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622939928] [2021-03-24 11:18:57,680 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 11:18:57,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:57,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 11:18:57,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-24 11:18:57,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:57,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 233 transitions, 4154 flow. Second operand has 13 states, 13 states have (on average 134.07692307692307) internal successors, (1743), 13 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:57,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:57,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:57,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:58,520 INFO L129 PetriNetUnfolder]: 439/1336 cut-off events. [2021-03-24 11:18:58,520 INFO L130 PetriNetUnfolder]: For 15917/15925 co-relation queries the response was YES. [2021-03-24 11:18:58,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7686 conditions, 1336 events. 439/1336 cut-off events. For 15917/15925 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10398 event pairs, 131 based on Foata normal form. 9/1335 useless extension candidates. Maximal degree in co-relation 7644. Up to 437 conditions per place. [2021-03-24 11:18:58,532 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 151 selfloop transitions, 122 changer transitions 0/285 dead transitions. [2021-03-24 11:18:58,533 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 285 transitions, 5116 flow [2021-03-24 11:18:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 11:18:58,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 11:18:58,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1804 transitions. [2021-03-24 11:18:58,535 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5158707463540178 [2021-03-24 11:18:58,535 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1804 transitions. [2021-03-24 11:18:58,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1804 transitions. [2021-03-24 11:18:58,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:58,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1804 transitions. [2021-03-24 11:18:58,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 138.76923076923077) internal successors, (1804), 13 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,541 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,541 INFO L185 Difference]: Start difference. First operand has 157 places, 233 transitions, 4154 flow. Second operand 13 states and 1804 transitions. [2021-03-24 11:18:58,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 285 transitions, 5116 flow [2021-03-24 11:18:58,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 285 transitions, 5028 flow, removed 19 selfloop flow, removed 5 redundant places. [2021-03-24 11:18:58,613 INFO L241 Difference]: Finished difference. Result has 166 places, 235 transitions, 4377 flow [2021-03-24 11:18:58,613 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4072, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4377, PETRI_PLACES=166, PETRI_TRANSITIONS=235} [2021-03-24 11:18:58,613 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 105 predicate places. [2021-03-24 11:18:58,613 INFO L480 AbstractCegarLoop]: Abstraction has has 166 places, 235 transitions, 4377 flow [2021-03-24 11:18:58,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 134.07692307692307) internal successors, (1743), 13 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:58,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:58,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 11:18:58,614 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:58,615 INFO L82 PathProgramCache]: Analyzing trace with hash -530408360, now seen corresponding path program 12 times [2021-03-24 11:18:58,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:58,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066640920] [2021-03-24 11:18:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:58,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:18:58,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:18:58,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:18:58,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:18:58,702 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-24 11:18:58,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:58,720 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:58,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:58,731 INFO L142 QuantifierPusher]: treesize reduction 11, result has 59.3 percent of original size [2021-03-24 11:18:58,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 11:18:58,743 INFO L142 QuantifierPusher]: treesize reduction 12, result has 64.7 percent of original size [2021-03-24 11:18:58,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:18:58,760 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 11:18:58,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:18:58,779 INFO L142 QuantifierPusher]: treesize reduction 18, result has 68.4 percent of original size [2021-03-24 11:18:58,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 11:18:58,804 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 11:18:58,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:18:58,820 INFO L142 QuantifierPusher]: treesize reduction 16, result has 65.2 percent of original size [2021-03-24 11:18:58,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 11:18:58,830 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:58,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:58,844 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 11:18:58,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:18:58,845 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:18:58,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:18:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:18:58,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066640920] [2021-03-24 11:18:58,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:18:58,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 11:18:58,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454822110] [2021-03-24 11:18:58,863 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 11:18:58,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:18:58,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 11:18:58,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-03-24 11:18:58,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 269 [2021-03-24 11:18:58,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 235 transitions, 4377 flow. Second operand has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:58,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:18:58,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 269 [2021-03-24 11:18:58,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:18:59,786 INFO L129 PetriNetUnfolder]: 439/1338 cut-off events. [2021-03-24 11:18:59,786 INFO L130 PetriNetUnfolder]: For 17083/17091 co-relation queries the response was YES. [2021-03-24 11:18:59,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7917 conditions, 1338 events. 439/1338 cut-off events. For 17083/17091 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10400 event pairs, 126 based on Foata normal form. 9/1340 useless extension candidates. Maximal degree in co-relation 7873. Up to 437 conditions per place. [2021-03-24 11:18:59,794 INFO L132 encePairwiseOnDemand]: 258/269 looper letters, 154 selfloop transitions, 119 changer transitions 0/285 dead transitions. [2021-03-24 11:18:59,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 285 transitions, 5262 flow [2021-03-24 11:18:59,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 11:18:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 11:18:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1808 transitions. [2021-03-24 11:18:59,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5170145839290821 [2021-03-24 11:18:59,797 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1808 transitions. [2021-03-24 11:18:59,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1808 transitions. [2021-03-24 11:18:59,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:18:59,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1808 transitions. [2021-03-24 11:18:59,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 139.07692307692307) internal successors, (1808), 13 states have internal predecessors, (1808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:59,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:59,803 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 269.0) internal successors, (3766), 14 states have internal predecessors, (3766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:59,803 INFO L185 Difference]: Start difference. First operand has 166 places, 235 transitions, 4377 flow. Second operand 13 states and 1808 transitions. [2021-03-24 11:18:59,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 285 transitions, 5262 flow [2021-03-24 11:18:59,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 285 transitions, 4991 flow, removed 22 selfloop flow, removed 11 redundant places. [2021-03-24 11:18:59,864 INFO L241 Difference]: Finished difference. Result has 167 places, 235 transitions, 4359 flow [2021-03-24 11:18:59,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4090, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=4359, PETRI_PLACES=167, PETRI_TRANSITIONS=235} [2021-03-24 11:18:59,864 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 106 predicate places. [2021-03-24 11:18:59,864 INFO L480 AbstractCegarLoop]: Abstraction has has 167 places, 235 transitions, 4359 flow [2021-03-24 11:18:59,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 134.25) internal successors, (1611), 12 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:18:59,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:18:59,865 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:18:59,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 11:18:59,865 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:18:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:18:59,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1617469087, now seen corresponding path program 1 times [2021-03-24 11:18:59,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:18:59,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868501989] [2021-03-24 11:18:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:18:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:00,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:00,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:00,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:00,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:00,017 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:00,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:00,041 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:00,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:00,071 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:00,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:00,105 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:00,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:00,143 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:00,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:00,180 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:00,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:00,186 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:00,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:00,204 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:00,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:00,223 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:00,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:00,250 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:00,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:00,270 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:00,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:00,286 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:00,310 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:19:00,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:00,334 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:19:00,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:00,358 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 11:19:00,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:00,380 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:00,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:00,404 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:00,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:00,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:00,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:00,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:00,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:19:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:00,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868501989] [2021-03-24 11:19:00,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:00,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:00,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030602025] [2021-03-24 11:19:00,448 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:00,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:00,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:00,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:00,450 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 269 [2021-03-24 11:19:00,451 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 235 transitions, 4359 flow. Second operand has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:00,451 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:00,451 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 269 [2021-03-24 11:19:00,451 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:02,340 INFO L129 PetriNetUnfolder]: 568/1796 cut-off events. [2021-03-24 11:19:02,340 INFO L130 PetriNetUnfolder]: For 23830/23838 co-relation queries the response was YES. [2021-03-24 11:19:02,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10468 conditions, 1796 events. 568/1796 cut-off events. For 23830/23838 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 15628 event pairs, 216 based on Foata normal form. 4/1795 useless extension candidates. Maximal degree in co-relation 10428. Up to 706 conditions per place. [2021-03-24 11:19:02,354 INFO L132 encePairwiseOnDemand]: 251/269 looper letters, 224 selfloop transitions, 155 changer transitions 9/396 dead transitions. [2021-03-24 11:19:02,355 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 396 transitions, 7781 flow [2021-03-24 11:19:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:19:02,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:19:02,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1563 transitions. [2021-03-24 11:19:02,357 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.305810995891215 [2021-03-24 11:19:02,357 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1563 transitions. [2021-03-24 11:19:02,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1563 transitions. [2021-03-24 11:19:02,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:02,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1563 transitions. [2021-03-24 11:19:02,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 82.26315789473684) internal successors, (1563), 19 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 269.0) internal successors, (5380), 20 states have internal predecessors, (5380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,364 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 269.0) internal successors, (5380), 20 states have internal predecessors, (5380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,364 INFO L185 Difference]: Start difference. First operand has 167 places, 235 transitions, 4359 flow. Second operand 19 states and 1563 transitions. [2021-03-24 11:19:02,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 396 transitions, 7781 flow [2021-03-24 11:19:02,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 396 transitions, 7427 flow, removed 1 selfloop flow, removed 8 redundant places. [2021-03-24 11:19:02,462 INFO L241 Difference]: Finished difference. Result has 187 places, 326 transitions, 6338 flow [2021-03-24 11:19:02,462 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=4118, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6338, PETRI_PLACES=187, PETRI_TRANSITIONS=326} [2021-03-24 11:19:02,462 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 126 predicate places. [2021-03-24 11:19:02,462 INFO L480 AbstractCegarLoop]: Abstraction has has 187 places, 326 transitions, 6338 flow [2021-03-24 11:19:02,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,463 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:02,463 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:02,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 11:19:02,463 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:02,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash 792374609, now seen corresponding path program 2 times [2021-03-24 11:19:02,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:02,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663035431] [2021-03-24 11:19:02,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:02,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:02,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:02,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:02,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:02,593 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:02,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:02,618 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 11:19:02,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 11:19:02,646 INFO L142 QuantifierPusher]: treesize reduction 18, result has 73.5 percent of original size [2021-03-24 11:19:02,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:02,683 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:02,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:02,699 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:02,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:02,716 INFO L142 QuantifierPusher]: treesize reduction 20, result has 63.0 percent of original size [2021-03-24 11:19:02,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:02,738 INFO L142 QuantifierPusher]: treesize reduction 20, result has 58.3 percent of original size [2021-03-24 11:19:02,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:02,764 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:19:02,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:02,787 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 11:19:02,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:02,806 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.2 percent of original size [2021-03-24 11:19:02,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 11:19:02,829 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:02,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:02,856 INFO L142 QuantifierPusher]: treesize reduction 14, result has 69.6 percent of original size [2021-03-24 11:19:02,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 11:19:02,857 INFO L142 QuantifierPusher]: treesize reduction 44, result has 36.2 percent of original size [2021-03-24 11:19:02,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:02,886 INFO L142 QuantifierPusher]: treesize reduction 9, result has 65.4 percent of original size [2021-03-24 11:19:02,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:02,904 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:02,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:02,920 INFO L142 QuantifierPusher]: treesize reduction 8, result has 68.0 percent of original size [2021-03-24 11:19:02,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:02,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:02,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:19:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:02,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663035431] [2021-03-24 11:19:02,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:02,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-24 11:19:02,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558341724] [2021-03-24 11:19:02,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-24 11:19:02,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:02,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-24 11:19:02,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2021-03-24 11:19:02,957 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 269 [2021-03-24 11:19:02,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 326 transitions, 6338 flow. Second operand has 19 states, 19 states have (on average 83.6842105263158) internal successors, (1590), 19 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:02,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:02,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 269 [2021-03-24 11:19:02,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:04,721 INFO L129 PetriNetUnfolder]: 570/1810 cut-off events. [2021-03-24 11:19:04,721 INFO L130 PetriNetUnfolder]: For 26383/26393 co-relation queries the response was YES. [2021-03-24 11:19:04,731 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11372 conditions, 1810 events. 570/1810 cut-off events. For 26383/26393 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 15841 event pairs, 219 based on Foata normal form. 3/1808 useless extension candidates. Maximal degree in co-relation 11322. Up to 706 conditions per place. [2021-03-24 11:19:04,737 INFO L132 encePairwiseOnDemand]: 251/269 looper letters, 227 selfloop transitions, 147 changer transitions 16/398 dead transitions. [2021-03-24 11:19:04,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 398 transitions, 8133 flow [2021-03-24 11:19:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:04,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1571 transitions. [2021-03-24 11:19:04,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32445270549359767 [2021-03-24 11:19:04,740 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1571 transitions. [2021-03-24 11:19:04,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1571 transitions. [2021-03-24 11:19:04,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:04,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1571 transitions. [2021-03-24 11:19:04,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 87.27777777777777) internal successors, (1571), 18 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 269.0) internal successors, (5111), 19 states have internal predecessors, (5111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,746 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 269.0) internal successors, (5111), 19 states have internal predecessors, (5111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,746 INFO L185 Difference]: Start difference. First operand has 187 places, 326 transitions, 6338 flow. Second operand 18 states and 1571 transitions. [2021-03-24 11:19:04,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 398 transitions, 8133 flow [2021-03-24 11:19:04,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 398 transitions, 7922 flow, removed 64 selfloop flow, removed 8 redundant places. [2021-03-24 11:19:04,927 INFO L241 Difference]: Finished difference. Result has 198 places, 326 transitions, 6501 flow [2021-03-24 11:19:04,927 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=6160, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6501, PETRI_PLACES=198, PETRI_TRANSITIONS=326} [2021-03-24 11:19:04,928 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 137 predicate places. [2021-03-24 11:19:04,928 INFO L480 AbstractCegarLoop]: Abstraction has has 198 places, 326 transitions, 6501 flow [2021-03-24 11:19:04,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 83.6842105263158) internal successors, (1590), 19 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:04,928 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:04,928 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:04,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 11:19:04,928 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:04,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:04,929 INFO L82 PathProgramCache]: Analyzing trace with hash 2042416297, now seen corresponding path program 3 times [2021-03-24 11:19:04,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:04,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32987622] [2021-03-24 11:19:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:05,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:05,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:05,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:05,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:05,041 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:05,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:05,065 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 11:19:05,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 11:19:05,092 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:05,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:05,127 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:05,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:05,172 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 11:19:05,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 11:19:05,224 INFO L142 QuantifierPusher]: treesize reduction 20, result has 70.1 percent of original size [2021-03-24 11:19:05,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 11:19:05,225 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 11:19:05,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:05,245 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:05,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:05,265 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 11:19:05,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 11:19:05,291 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 11:19:05,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 11:19:05,316 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:05,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:05,340 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 11:19:05,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 11:19:05,365 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 11:19:05,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 11:19:05,392 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 11:19:05,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 11:19:05,418 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 11:19:05,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,446 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:05,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,471 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 11:19:05,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 11:19:05,472 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 11:19:05,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 11:19:05,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:05,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:19:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:05,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32987622] [2021-03-24 11:19:05,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:05,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:05,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398378234] [2021-03-24 11:19:05,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:05,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:05,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:05,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:05,517 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 269 [2021-03-24 11:19:05,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 326 transitions, 6501 flow. Second operand has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:05,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:05,518 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 269 [2021-03-24 11:19:05,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:07,400 INFO L129 PetriNetUnfolder]: 563/1781 cut-off events. [2021-03-24 11:19:07,400 INFO L130 PetriNetUnfolder]: For 26924/26934 co-relation queries the response was YES. [2021-03-24 11:19:07,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11479 conditions, 1781 events. 563/1781 cut-off events. For 26924/26934 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 15457 event pairs, 216 based on Foata normal form. 3/1779 useless extension candidates. Maximal degree in co-relation 11428. Up to 706 conditions per place. [2021-03-24 11:19:07,417 INFO L132 encePairwiseOnDemand]: 251/269 looper letters, 220 selfloop transitions, 148 changer transitions 16/392 dead transitions. [2021-03-24 11:19:07,417 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 392 transitions, 8148 flow [2021-03-24 11:19:07,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 11:19:07,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 11:19:07,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1641 transitions. [2021-03-24 11:19:07,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3050185873605948 [2021-03-24 11:19:07,423 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1641 transitions. [2021-03-24 11:19:07,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1641 transitions. [2021-03-24 11:19:07,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:07,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1641 transitions. [2021-03-24 11:19:07,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 82.05) internal successors, (1641), 20 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 269.0) internal successors, (5649), 21 states have internal predecessors, (5649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,429 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 269.0) internal successors, (5649), 21 states have internal predecessors, (5649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,429 INFO L185 Difference]: Start difference. First operand has 198 places, 326 transitions, 6501 flow. Second operand 20 states and 1641 transitions. [2021-03-24 11:19:07,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 392 transitions, 8148 flow [2021-03-24 11:19:07,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 392 transitions, 7947 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-24 11:19:07,566 INFO L241 Difference]: Finished difference. Result has 202 places, 319 transitions, 6465 flow [2021-03-24 11:19:07,566 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=6302, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=148, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6465, PETRI_PLACES=202, PETRI_TRANSITIONS=319} [2021-03-24 11:19:07,567 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 141 predicate places. [2021-03-24 11:19:07,567 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 319 transitions, 6465 flow [2021-03-24 11:19:07,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:07,567 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:07,567 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:07,567 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 11:19:07,567 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:07,568 INFO L82 PathProgramCache]: Analyzing trace with hash 368063373, now seen corresponding path program 4 times [2021-03-24 11:19:07,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:07,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550382744] [2021-03-24 11:19:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:07,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:07,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:07,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:07,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:07,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:07,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:07,721 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 11:19:07,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:07,746 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:19:07,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:19:07,786 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:19:07,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:19:07,825 INFO L142 QuantifierPusher]: treesize reduction 24, result has 65.7 percent of original size [2021-03-24 11:19:07,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:07,854 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.8 percent of original size [2021-03-24 11:19:07,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:07,871 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:19:07,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:07,891 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 11:19:07,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:07,913 INFO L142 QuantifierPusher]: treesize reduction 32, result has 43.9 percent of original size [2021-03-24 11:19:07,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:07,931 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:19:07,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:07,949 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:19:07,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:07,987 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-24 11:19:07,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:08,013 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:08,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:08,038 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:08,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:08,039 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:08,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:08,064 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:08,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:08,086 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:08,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:08,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:08,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:19:08,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:08,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550382744] [2021-03-24 11:19:08,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:08,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:08,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375558259] [2021-03-24 11:19:08,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:08,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:08,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:08,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:08,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 269 [2021-03-24 11:19:08,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 319 transitions, 6465 flow. Second operand has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:08,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:08,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 269 [2021-03-24 11:19:08,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:09,760 INFO L129 PetriNetUnfolder]: 562/1776 cut-off events. [2021-03-24 11:19:09,760 INFO L130 PetriNetUnfolder]: For 27611/27621 co-relation queries the response was YES. [2021-03-24 11:19:09,768 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11550 conditions, 1776 events. 562/1776 cut-off events. For 27611/27621 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 15415 event pairs, 218 based on Foata normal form. 3/1774 useless extension candidates. Maximal degree in co-relation 11500. Up to 706 conditions per place. [2021-03-24 11:19:09,773 INFO L132 encePairwiseOnDemand]: 251/269 looper letters, 223 selfloop transitions, 134 changer transitions 25/390 dead transitions. [2021-03-24 11:19:09,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 390 transitions, 8190 flow [2021-03-24 11:19:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 11:19:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 11:19:09,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1480 transitions. [2021-03-24 11:19:09,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3056588186699711 [2021-03-24 11:19:09,785 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1480 transitions. [2021-03-24 11:19:09,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1480 transitions. [2021-03-24 11:19:09,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:09,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1480 transitions. [2021-03-24 11:19:09,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 82.22222222222223) internal successors, (1480), 18 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 269.0) internal successors, (5111), 19 states have internal predecessors, (5111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,790 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 269.0) internal successors, (5111), 19 states have internal predecessors, (5111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,790 INFO L185 Difference]: Start difference. First operand has 202 places, 319 transitions, 6465 flow. Second operand 18 states and 1480 transitions. [2021-03-24 11:19:09,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 390 transitions, 8190 flow [2021-03-24 11:19:09,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 390 transitions, 7743 flow, removed 13 selfloop flow, removed 21 redundant places. [2021-03-24 11:19:09,890 INFO L241 Difference]: Finished difference. Result has 199 places, 313 transitions, 6228 flow [2021-03-24 11:19:09,891 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=6044, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6228, PETRI_PLACES=199, PETRI_TRANSITIONS=313} [2021-03-24 11:19:09,891 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 138 predicate places. [2021-03-24 11:19:09,891 INFO L480 AbstractCegarLoop]: Abstraction has has 199 places, 313 transitions, 6228 flow [2021-03-24 11:19:09,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:09,891 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:09,891 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:09,891 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 11:19:09,892 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:09,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:09,892 INFO L82 PathProgramCache]: Analyzing trace with hash 419918309, now seen corresponding path program 5 times [2021-03-24 11:19:09,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:09,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809734500] [2021-03-24 11:19:09,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 11:19:09,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:09,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 11:19:09,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 11:19:10,000 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 11:19:10,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 11:19:10,025 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 11:19:10,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 11:19:10,049 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:19:10,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:19:10,089 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 11:19:10,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 11:19:10,136 INFO L142 QuantifierPusher]: treesize reduction 24, result has 65.7 percent of original size [2021-03-24 11:19:10,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 11:19:10,178 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.8 percent of original size [2021-03-24 11:19:10,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:10,199 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:19:10,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:10,221 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 11:19:10,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 11:19:10,244 INFO L142 QuantifierPusher]: treesize reduction 32, result has 43.9 percent of original size [2021-03-24 11:19:10,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 11:19:10,264 INFO L142 QuantifierPusher]: treesize reduction 20, result has 53.5 percent of original size [2021-03-24 11:19:10,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 11:19:10,281 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-24 11:19:10,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:10,299 INFO L142 QuantifierPusher]: treesize reduction 20, result has 52.4 percent of original size [2021-03-24 11:19:10,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 11:19:10,320 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:10,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:10,347 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 11:19:10,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 11:19:10,348 INFO L142 QuantifierPusher]: treesize reduction 29, result has 32.6 percent of original size [2021-03-24 11:19:10,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:10,370 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 11:19:10,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 11:19:10,389 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 11:19:10,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 11:19:10,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 11:19:10,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 11:19:10,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 11:19:10,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809734500] [2021-03-24 11:19:10,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 11:19:10,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-24 11:19:10,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122611891] [2021-03-24 11:19:10,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-24 11:19:10,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 11:19:10,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-24 11:19:10,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2021-03-24 11:19:10,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 269 [2021-03-24 11:19:10,427 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 313 transitions, 6228 flow. Second operand has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:10,427 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 11:19:10,427 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 269 [2021-03-24 11:19:10,427 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 11:19:12,151 INFO L129 PetriNetUnfolder]: 586/1869 cut-off events. [2021-03-24 11:19:12,152 INFO L130 PetriNetUnfolder]: For 28310/28320 co-relation queries the response was YES. [2021-03-24 11:19:12,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11985 conditions, 1869 events. 586/1869 cut-off events. For 28310/28320 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 16497 event pairs, 216 based on Foata normal form. 3/1867 useless extension candidates. Maximal degree in co-relation 11933. Up to 706 conditions per place. [2021-03-24 11:19:12,175 INFO L132 encePairwiseOnDemand]: 251/269 looper letters, 224 selfloop transitions, 146 changer transitions 29/407 dead transitions. [2021-03-24 11:19:12,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 407 transitions, 8381 flow [2021-03-24 11:19:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 11:19:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 11:19:12,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1562 transitions. [2021-03-24 11:19:12,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3056153394639014 [2021-03-24 11:19:12,178 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1562 transitions. [2021-03-24 11:19:12,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1562 transitions. [2021-03-24 11:19:12,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 11:19:12,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1562 transitions. [2021-03-24 11:19:12,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 82.21052631578948) internal successors, (1562), 19 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:12,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 269.0) internal successors, (5380), 20 states have internal predecessors, (5380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:12,184 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 269.0) internal successors, (5380), 20 states have internal predecessors, (5380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:12,184 INFO L185 Difference]: Start difference. First operand has 199 places, 313 transitions, 6228 flow. Second operand 19 states and 1562 transitions. [2021-03-24 11:19:12,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 407 transitions, 8381 flow [2021-03-24 11:19:12,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 407 transitions, 8040 flow, removed 25 selfloop flow, removed 16 redundant places. [2021-03-24 11:19:12,338 INFO L241 Difference]: Finished difference. Result has 202 places, 323 transitions, 6578 flow [2021-03-24 11:19:12,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=269, PETRI_DIFFERENCE_MINUEND_FLOW=5950, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=134, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6578, PETRI_PLACES=202, PETRI_TRANSITIONS=323} [2021-03-24 11:19:12,339 INFO L343 CegarLoopForPetriNet]: 61 programPoint places, 141 predicate places. [2021-03-24 11:19:12,339 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 323 transitions, 6578 flow [2021-03-24 11:19:12,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 78.6) internal successors, (1572), 20 states have internal predecessors, (1572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 11:19:12,339 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 11:19:12,339 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 11:19:12,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 11:19:12,339 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 11:19:12,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 11:19:12,340 INFO L82 PathProgramCache]: Analyzing trace with hash 6201433, now seen corresponding path program 6 times [2021-03-24 11:19:12,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 11:19:12,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394866090] [2021-03-24 11:19:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 11:19:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 11:19:12,375 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 11:19:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-24 11:19:12,403 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-24 11:19:12,431 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-24 11:19:12,432 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-24 11:19:12,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 11:19:12,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 11:19:12 BasicIcfg [2021-03-24 11:19:12,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 11:19:12,485 INFO L168 Benchmark]: Toolchain (without parser) took 32382.18 ms. Allocated memory was 255.9 MB in the beginning and 1.1 GB in the end (delta: 799.0 MB). Free memory was 232.6 MB in the beginning and 447.5 MB in the end (delta: -214.9 MB). Peak memory consumption was 582.5 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 810.99 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 232.6 MB in the beginning and 284.9 MB in the end (delta: -52.3 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.46 ms. Allocated memory is still 373.3 MB. Free memory was 284.9 MB in the beginning and 281.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: Boogie Preprocessor took 34.07 ms. Allocated memory is still 373.3 MB. Free memory was 281.7 MB in the beginning and 278.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: RCFGBuilder took 691.27 ms. Allocated memory is still 373.3 MB. Free memory was 278.6 MB in the beginning and 229.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,485 INFO L168 Benchmark]: TraceAbstraction took 30777.03 ms. Allocated memory was 373.3 MB in the beginning and 1.1 GB in the end (delta: 681.6 MB). Free memory was 229.3 MB in the beginning and 447.5 MB in the end (delta: -218.2 MB). Peak memory consumption was 463.4 MB. Max. memory is 16.0 GB. [2021-03-24 11:19:12,486 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory was 238.0 MB in the beginning and 238.0 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 810.99 ms. Allocated memory was 255.9 MB in the beginning and 373.3 MB in the end (delta: 117.4 MB). Free memory was 232.6 MB in the beginning and 284.9 MB in the end (delta: -52.3 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 62.46 ms. Allocated memory is still 373.3 MB. Free memory was 284.9 MB in the beginning and 281.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 34.07 ms. Allocated memory is still 373.3 MB. Free memory was 281.7 MB in the beginning and 278.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 691.27 ms. Allocated memory is still 373.3 MB. Free memory was 278.6 MB in the beginning and 229.3 MB in the end (delta: 49.3 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 30777.03 ms. Allocated memory was 373.3 MB in the beginning and 1.1 GB in the end (delta: 681.6 MB). Free memory was 229.3 MB in the beginning and 447.5 MB in the end (delta: -218.2 MB). Peak memory consumption was 463.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2615.9ms, 142 PlacesBefore, 61 PlacesAfterwards, 144 TransitionsBefore, 62 TransitionsAfterwards, 1512 CoEnabledTransitionPairs, 4 FixpointIterations, 63 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 113 TotalNumberOfCompositions, 1692 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 951, positive: 902, positive conditional: 0, positive unconditional: 902, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 722, positive: 701, positive conditional: 0, positive unconditional: 701, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 722, positive: 701, positive conditional: 0, positive unconditional: 701, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 951, positive: 201, positive conditional: 0, positive unconditional: 201, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 722, unknown conditional: 0, unknown unconditional: 722] , Statistics on independence cache: Total cache size (in pairs): 24, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1688] 0 struct device *my_dev; [L1727] 0 return 0; [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={6:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={6:0}, t2={8:0}] [L1736] 0 struct my_data data; [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={6:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 [L1707] 0 data->shared.a [L1675] COND FALSE 0 !(!expression) [L1708] 0 data->shared.b [L1675] COND FALSE 0 !(!expression) [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={6:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) [L1712] 0 my_dev = &data->dev [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1715] 0 return 0; [L1737] 0 probe_ret = my_drv_probe(&data) VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1690] 2 struct my_data *data; [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 [L1701] 1 return 0; [L1699] 2 data->shared.b = lb + 1 [L1701] 2 return 0; [L1721] 0 void *status; [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1740] 0 data.shared.a [L1675] COND FALSE 0 !(!expression) [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={6:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 30631.1ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 20790.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2704.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 408 SDtfs, 2006 SDslu, 917 SDs, 0 SdLazy, 8070 SolverSat, 895 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4954.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 40 SyntacticMatches, 10 SemanticMatches, 412 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 893 ImplicationChecksByTransitivity, 12947.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6578occurred in iteration=22, InterpolantAutomatonStates: 271, 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: 59.1ms SsaConstructionTime, 645.1ms SatisfiabilityAnalysisTime, 5902.5ms InterpolantComputationTime, 724 NumberOfCodeBlocks, 724 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 10448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...