/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 20:48:46,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 20:48:46,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 20:48:46,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 20:48:46,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 20:48:46,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 20:48:46,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 20:48:46,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 20:48:46,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 20:48:46,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 20:48:46,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 20:48:46,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 20:48:46,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 20:48:46,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 20:48:46,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 20:48:46,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 20:48:46,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 20:48:46,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 20:48:46,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 20:48:46,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 20:48:46,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 20:48:46,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 20:48:46,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 20:48:46,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 20:48:46,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 20:48:46,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 20:48:46,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 20:48:46,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 20:48:46,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 20:48:46,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 20:48:46,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 20:48:46,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 20:48:46,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 20:48:46,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 20:48:46,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 20:48:46,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 20:48:46,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 20:48:46,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 20:48:46,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 20:48:46,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 20:48:46,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 20:48:46,581 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 20:48:46,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 20:48:46,581 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 20:48:46,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 20:48:46,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 20:48:46,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 20:48:46,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 20:48:46,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 20:48:46,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 20:48:46,584 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 20:48:46,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 20:48:46,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 20:48:46,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 20:48:46,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 20:48:46,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 20:48:46,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 20:48:46,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 20:48:46,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:48:46,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 20:48:46,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 20:48:46,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 20:48:46,588 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 20:48:46,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 20:48:46,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 20:48:46,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 20:48:46,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 20:48:46,589 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 20:48:47,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 20:48:47,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 20:48:47,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 20:48:47,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 20:48:47,110 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 20:48:47,111 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2021-04-28 20:48:47,200 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a292d804/b1d3f8a2c290402b86471564db37e1e1/FLAGdbf800d2b [2021-04-28 20:48:47,905 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 20:48:47,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i [2021-04-28 20:48:47,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a292d804/b1d3f8a2c290402b86471564db37e1e1/FLAGdbf800d2b [2021-04-28 20:48:48,144 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a292d804/b1d3f8a2c290402b86471564db37e1e1 [2021-04-28 20:48:48,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 20:48:48,207 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 20:48:48,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 20:48:48,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 20:48:48,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 20:48:48,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:48:48" (1/1) ... [2021-04-28 20:48:48,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e92bf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:48, skipping insertion in model container [2021-04-28 20:48:48,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 08:48:48" (1/1) ... [2021-04-28 20:48:48,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 20:48:48,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 20:48:48,567 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i[949,962] [2021-04-28 20:48:48,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:48:48,808 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 20:48:48,827 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix040_tso.oepc.i[949,962] [2021-04-28 20:48:48,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 20:48:49,057 INFO L208 MainTranslator]: Completed translation [2021-04-28 20:48:49,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49 WrapperNode [2021-04-28 20:48:49,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 20:48:49,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 20:48:49,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 20:48:49,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 20:48:49,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 20:48:49,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 20:48:49,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 20:48:49,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 20:48:49,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... [2021-04-28 20:48:49,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 20:48:49,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 20:48:49,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 20:48:49,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 20:48:49,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 20:48:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 20:48:49,311 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 20:48:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 20:48:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 20:48:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 20:48:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 20:48:49,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 20:48:49,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 20:48:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 20:48:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 20:48:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 20:48:49,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 20:48:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 20:48:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 20:48:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 20:48:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 20:48:49,316 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 20:48:51,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 20:48:51,833 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 20:48:51,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:48:51 BoogieIcfgContainer [2021-04-28 20:48:51,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 20:48:51,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 20:48:51,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 20:48:51,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 20:48:51,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 08:48:48" (1/3) ... [2021-04-28 20:48:51,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a616741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:48:51, skipping insertion in model container [2021-04-28 20:48:51,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 08:48:49" (2/3) ... [2021-04-28 20:48:51,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a616741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 08:48:51, skipping insertion in model container [2021-04-28 20:48:51,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 08:48:51" (3/3) ... [2021-04-28 20:48:51,844 INFO L111 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2021-04-28 20:48:51,852 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 20:48:51,858 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 20:48:51,859 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 20:48:51,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,898 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,899 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,901 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,902 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,903 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,907 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,911 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,912 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,913 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,913 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,913 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,914 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,914 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,914 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,914 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,914 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,916 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,916 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,916 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,916 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,916 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,917 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,917 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,917 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,917 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,918 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,918 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,920 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,920 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,926 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,927 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,928 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,928 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,929 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,930 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,931 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,931 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,933 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,933 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 20:48:51,935 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 20:48:51,958 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 20:48:51,982 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 20:48:51,983 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 20:48:51,983 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 20:48:51,983 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 20:48:51,983 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 20:48:51,983 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 20:48:51,983 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 20:48:51,983 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 20:48:51,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 129 places, 118 transitions, 256 flow [2021-04-28 20:48:52,050 INFO L129 PetriNetUnfolder]: 2/114 cut-off events. [2021-04-28 20:48:52,051 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:52,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2021-04-28 20:48:52,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 118 transitions, 256 flow [2021-04-28 20:48:52,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 114 transitions, 240 flow [2021-04-28 20:48:52,064 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:48:52,080 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 114 transitions, 240 flow [2021-04-28 20:48:52,084 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 114 transitions, 240 flow [2021-04-28 20:48:52,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 240 flow [2021-04-28 20:48:52,114 INFO L129 PetriNetUnfolder]: 2/114 cut-off events. [2021-04-28 20:48:52,115 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:48:52,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 2/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2021-04-28 20:48:52,121 INFO L146 LiptonReduction]: Number of co-enabled transitions 2730 [2021-04-28 20:48:53,685 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 20:48:54,201 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:48:56,496 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 20:48:57,533 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:48:58,950 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-28 20:49:01,520 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 20:49:01,676 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 20:49:02,234 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 20:49:02,459 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 20:49:03,217 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 20:49:03,368 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2021-04-28 20:49:05,138 WARN L205 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 20:49:05,671 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 20:49:06,742 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 20:49:07,798 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 20:49:08,325 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:08,838 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:11,051 WARN L205 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 269 DAG size of output: 268 [2021-04-28 20:49:12,145 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 20:49:12,666 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:13,182 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:14,267 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:49:15,413 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:49:18,029 WARN L205 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:18,593 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:19,747 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:20,896 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:21,503 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:22,109 WARN L205 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:23,298 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:24,518 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:25,144 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:25,764 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:26,931 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 20:49:28,115 WARN L205 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 20:49:28,698 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:29,284 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:31,741 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 267 DAG size of output: 266 [2021-04-28 20:49:32,947 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 20:49:38,325 WARN L205 SmtUtils]: Spent 638.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:38,983 WARN L205 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 20:49:40,303 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 20:49:41,658 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 20:49:42,303 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:42,954 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 20:49:44,259 WARN L205 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:49:45,624 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 20:49:46,323 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:47,005 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 20:49:48,417 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:49,868 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 20:49:51,910 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:49:52,016 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:49:52,127 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:49:52,233 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:49:53,111 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:49:53,215 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:49:53,320 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:00,040 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:00,156 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:00,284 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:00,410 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:00,901 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:01,019 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:01,135 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:01,269 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:01,372 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:01,476 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:01,584 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:01,688 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:02,925 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:03,042 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:03,161 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:03,279 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:03,382 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:03,484 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:03,588 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:03,693 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 20:50:04,307 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:50:04,414 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:50:04,522 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:50:04,630 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 20:50:04,743 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:04,855 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:04,968 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:05,080 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 20:50:05,198 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:05,316 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:05,433 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:05,562 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:06,029 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:50:06,203 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:50:06,377 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:50:06,551 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 20:50:07,379 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:07,497 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:07,615 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:07,732 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:08,164 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:50:08,351 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:50:08,535 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:50:08,720 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-04-28 20:50:09,137 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:09,258 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:09,377 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:09,494 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 20:50:09,682 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:50:09,864 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:50:10,059 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:50:10,239 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 20:50:10,429 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:10,611 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:10,794 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:10,972 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:11,125 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:50:11,295 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:50:11,451 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:50:11,600 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 20:50:11,736 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:50:11,870 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:50:12,013 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:50:12,159 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 20:50:12,323 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:50:12,488 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:50:12,661 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:50:12,832 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 20:50:12,994 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:13,156 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:13,310 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:13,463 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:13,820 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 20:50:14,038 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:50:14,254 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:50:14,472 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:50:14,681 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 20:50:14,876 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:50:15,076 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:50:15,276 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:50:15,461 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 20:50:15,627 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:50:15,798 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:50:15,977 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:50:16,157 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 20:50:16,317 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:50:16,473 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:50:16,633 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:50:16,796 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 20:50:16,939 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:50:17,078 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:50:17,223 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:50:17,372 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 20:50:17,711 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:50:18,033 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:50:18,331 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:50:18,631 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 20:50:18,879 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:50:19,124 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:50:19,382 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:50:19,651 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 20:50:19,933 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:50:20,213 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:50:20,491 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:50:20,770 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 20:50:20,980 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:21,181 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:21,385 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:21,595 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:21,845 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:22,073 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:22,295 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:22,517 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:22,789 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:50:23,062 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:50:23,337 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:50:23,613 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 20:50:23,927 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:24,236 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:24,548 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:24,859 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:25,675 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:50:26,051 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:50:26,837 WARN L205 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119 [2021-04-28 20:50:27,226 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-04-28 20:50:27,476 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:50:27,731 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:50:27,958 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:50:28,184 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 20:50:28,488 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:28,788 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:29,090 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:29,382 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:30,230 WARN L205 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:50:30,627 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:50:31,401 WARN L205 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 124 [2021-04-28 20:50:31,793 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-04-28 20:50:31,970 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:32,134 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:32,311 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:32,490 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 20:50:32,770 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:50:33,039 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:50:33,310 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:50:33,602 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 20:50:33,824 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:34,041 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:34,266 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:34,488 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 20:50:34,724 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:50:34,963 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:50:35,211 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:50:35,452 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 20:50:35,751 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:36,046 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:36,357 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:36,652 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:36,859 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:37,059 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:37,262 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:37,464 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:37,756 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:38,051 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:38,343 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:38,630 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-28 20:50:38,822 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:39,019 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:39,223 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:39,412 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 20:50:39,462 INFO L158 LiptonReduction]: Checked pairs total: 26211 [2021-04-28 20:50:39,462 INFO L160 LiptonReduction]: Total number of compositions: 289 [2021-04-28 20:50:39,467 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107405 [2021-04-28 20:50:39,500 INFO L129 PetriNetUnfolder]: 0/78 cut-off events. [2021-04-28 20:50:39,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:50:39,501 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:39,502 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:39,502 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:39,509 INFO L82 PathProgramCache]: Analyzing trace with hash -274097791, now seen corresponding path program 1 times [2021-04-28 20:50:39,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:39,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066941674] [2021-04-28 20:50:39,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:39,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:39,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:39,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066941674] [2021-04-28 20:50:39,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:39,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:50:39,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248780344] [2021-04-28 20:50:39,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:50:39,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:39,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:50:39,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:50:39,895 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 318 out of 407 [2021-04-28 20:50:39,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 145 transitions, 302 flow. Second operand has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:39,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:39,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 318 of 407 [2021-04-28 20:50:39,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:40,505 INFO L129 PetriNetUnfolder]: 309/778 cut-off events. [2021-04-28 20:50:40,506 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:50:40,513 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 778 events. 309/778 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 5738 event pairs, 183 based on Foata normal form. 11/392 useless extension candidates. Maximal degree in co-relation 1223. Up to 377 conditions per place. [2021-04-28 20:50:40,517 INFO L132 encePairwiseOnDemand]: 390/407 looper letters, 9 selfloop transitions, 2 changer transitions 101/157 dead transitions. [2021-04-28 20:50:40,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 157 transitions, 420 flow [2021-04-28 20:50:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:50:40,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:50:40,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1006 transitions. [2021-04-28 20:50:40,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.823914823914824 [2021-04-28 20:50:40,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1006 transitions. [2021-04-28 20:50:40,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1006 transitions. [2021-04-28 20:50:40,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:40,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1006 transitions. [2021-04-28 20:50:40,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:40,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:40,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 407.0) internal successors, (1628), 4 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:40,579 INFO L185 Difference]: Start difference. First operand has 156 places, 145 transitions, 302 flow. Second operand 3 states and 1006 transitions. [2021-04-28 20:50:40,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 157 transitions, 420 flow [2021-04-28 20:50:40,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 416 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 20:50:40,588 INFO L241 Difference]: Finished difference. Result has 151 places, 52 transitions, 116 flow [2021-04-28 20:50:40,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=407, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=151, PETRI_TRANSITIONS=52} [2021-04-28 20:50:40,592 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -5 predicate places. [2021-04-28 20:50:40,592 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:40,592 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 52 transitions, 116 flow [2021-04-28 20:50:40,592 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 52 transitions, 116 flow [2021-04-28 20:50:40,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 52 transitions, 116 flow [2021-04-28 20:50:40,601 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-04-28 20:50:40,601 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:50:40,601 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 52 events. 0/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 182 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 20:50:40,603 INFO L146 LiptonReduction]: Number of co-enabled transitions 1622 [2021-04-28 20:50:41,024 INFO L158 LiptonReduction]: Checked pairs total: 3028 [2021-04-28 20:50:41,024 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-28 20:50:41,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 432 [2021-04-28 20:50:41,026 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 116 flow [2021-04-28 20:50:41,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 318.6666666666667) internal successors, (956), 3 states have internal predecessors, (956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,028 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:41,028 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:41,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 20:50:41,028 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:41,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:41,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1757693473, now seen corresponding path program 1 times [2021-04-28 20:50:41,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:41,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851689284] [2021-04-28 20:50:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:41,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:41,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:41,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851689284] [2021-04-28 20:50:41,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:41,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:50:41,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791710424] [2021-04-28 20:50:41,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:50:41,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:41,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:50:41,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:50:41,201 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 408 [2021-04-28 20:50:41,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:41,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 408 [2021-04-28 20:50:41,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:41,228 INFO L129 PetriNetUnfolder]: 3/68 cut-off events. [2021-04-28 20:50:41,228 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:50:41,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 68 events. 3/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 272 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 82. Up to 10 conditions per place. [2021-04-28 20:50:41,229 INFO L132 encePairwiseOnDemand]: 404/408 looper letters, 3 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2021-04-28 20:50:41,229 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 54 transitions, 132 flow [2021-04-28 20:50:41,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:50:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:50:41,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2021-04-28 20:50:41,235 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7091503267973857 [2021-04-28 20:50:41,235 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:41,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,244 INFO L185 Difference]: Start difference. First operand has 63 places, 52 transitions, 116 flow. Second operand 3 states and 868 transitions. [2021-04-28 20:50:41,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 54 transitions, 132 flow [2021-04-28 20:50:41,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 54 transitions, 128 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:50:41,247 INFO L241 Difference]: Finished difference. Result has 64 places, 54 transitions, 131 flow [2021-04-28 20:50:41,248 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=131, PETRI_PLACES=64, PETRI_TRANSITIONS=54} [2021-04-28 20:50:41,248 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -92 predicate places. [2021-04-28 20:50:41,248 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:41,249 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 54 transitions, 131 flow [2021-04-28 20:50:41,249 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 54 transitions, 131 flow [2021-04-28 20:50:41,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 54 transitions, 131 flow [2021-04-28 20:50:41,259 INFO L129 PetriNetUnfolder]: 3/64 cut-off events. [2021-04-28 20:50:41,259 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 20:50:41,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 64 events. 3/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 253 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 20:50:41,262 INFO L146 LiptonReduction]: Number of co-enabled transitions 1752 [2021-04-28 20:50:41,644 INFO L158 LiptonReduction]: Checked pairs total: 1262 [2021-04-28 20:50:41,644 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:41,644 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 396 [2021-04-28 20:50:41,646 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 54 transitions, 131 flow [2021-04-28 20:50:41,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:41,647 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:41,647 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 20:50:41,647 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:41,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:41,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1734004690, now seen corresponding path program 1 times [2021-04-28 20:50:41,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:41,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548031586] [2021-04-28 20:50:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:41,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:41,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:41,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548031586] [2021-04-28 20:50:41,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:41,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 20:50:41,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531484119] [2021-04-28 20:50:41,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:50:41,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:41,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:50:41,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:50:41,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 408 [2021-04-28 20:50:41,761 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 54 transitions, 131 flow. Second operand has 3 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:41,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 408 [2021-04-28 20:50:41,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:41,782 INFO L129 PetriNetUnfolder]: 3/68 cut-off events. [2021-04-28 20:50:41,783 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 20:50:41,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 68 events. 3/68 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 271 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 87. Up to 10 conditions per place. [2021-04-28 20:50:41,784 INFO L132 encePairwiseOnDemand]: 405/408 looper letters, 1 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2021-04-28 20:50:41,784 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 137 flow [2021-04-28 20:50:41,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:50:41,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:50:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2021-04-28 20:50:41,790 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7091503267973857 [2021-04-28 20:50:41,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:41,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 868 transitions. [2021-04-28 20:50:41,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:41,800 INFO L185 Difference]: Start difference. First operand has 64 places, 54 transitions, 131 flow. Second operand 3 states and 868 transitions. [2021-04-28 20:50:41,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 137 flow [2021-04-28 20:50:41,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 54 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:50:41,802 INFO L241 Difference]: Finished difference. Result has 66 places, 54 transitions, 136 flow [2021-04-28 20:50:41,802 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2021-04-28 20:50:41,803 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -90 predicate places. [2021-04-28 20:50:41,803 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:41,803 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 54 transitions, 136 flow [2021-04-28 20:50:41,803 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 54 transitions, 136 flow [2021-04-28 20:50:41,804 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 54 transitions, 136 flow [2021-04-28 20:50:41,813 INFO L129 PetriNetUnfolder]: 3/68 cut-off events. [2021-04-28 20:50:41,814 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-28 20:50:41,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 68 events. 3/68 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 276 event pairs, 1 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 86. Up to 10 conditions per place. [2021-04-28 20:50:41,816 INFO L146 LiptonReduction]: Number of co-enabled transitions 1742 [2021-04-28 20:50:42,056 INFO L158 LiptonReduction]: Checked pairs total: 1194 [2021-04-28 20:50:42,057 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:42,057 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-04-28 20:50:42,058 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 136 flow [2021-04-28 20:50:42,059 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,059 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:42,060 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:42,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 20:50:42,060 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:42,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:42,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2086557927, now seen corresponding path program 1 times [2021-04-28 20:50:42,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:42,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158171636] [2021-04-28 20:50:42,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:42,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:42,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:42,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:42,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:50:42,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:42,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158171636] [2021-04-28 20:50:42,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:42,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:50:42,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943786835] [2021-04-28 20:50:42,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:50:42,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:42,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:50:42,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:50:42,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 408 [2021-04-28 20:50:42,210 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 241.75) internal successors, (967), 4 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,210 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:42,210 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 408 [2021-04-28 20:50:42,210 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:42,366 INFO L129 PetriNetUnfolder]: 166/397 cut-off events. [2021-04-28 20:50:42,366 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2021-04-28 20:50:42,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 397 events. 166/397 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2357 event pairs, 116 based on Foata normal form. 2/282 useless extension candidates. Maximal degree in co-relation 739. Up to 237 conditions per place. [2021-04-28 20:50:42,374 INFO L132 encePairwiseOnDemand]: 404/408 looper letters, 9 selfloop transitions, 3 changer transitions 0/58 dead transitions. [2021-04-28 20:50:42,374 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 58 transitions, 168 flow [2021-04-28 20:50:42,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:50:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:50:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 736 transitions. [2021-04-28 20:50:42,380 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6013071895424836 [2021-04-28 20:50:42,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 736 transitions. [2021-04-28 20:50:42,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 736 transitions. [2021-04-28 20:50:42,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:42,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 736 transitions. [2021-04-28 20:50:42,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,389 INFO L185 Difference]: Start difference. First operand has 66 places, 54 transitions, 136 flow. Second operand 3 states and 736 transitions. [2021-04-28 20:50:42,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 58 transitions, 168 flow [2021-04-28 20:50:42,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 58 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 20:50:42,393 INFO L241 Difference]: Finished difference. Result has 67 places, 56 transitions, 151 flow [2021-04-28 20:50:42,393 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2021-04-28 20:50:42,393 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -89 predicate places. [2021-04-28 20:50:42,393 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:42,393 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 56 transitions, 151 flow [2021-04-28 20:50:42,394 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 56 transitions, 151 flow [2021-04-28 20:50:42,394 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 151 flow [2021-04-28 20:50:42,410 INFO L129 PetriNetUnfolder]: 10/92 cut-off events. [2021-04-28 20:50:42,410 INFO L130 PetriNetUnfolder]: For 25/31 co-relation queries the response was YES. [2021-04-28 20:50:42,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 92 events. 10/92 cut-off events. For 25/31 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 430 event pairs, 3 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 139. Up to 19 conditions per place. [2021-04-28 20:50:42,414 INFO L146 LiptonReduction]: Number of co-enabled transitions 1860 [2021-04-28 20:50:42,907 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 20:50:42,907 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:42,907 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 514 [2021-04-28 20:50:42,908 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 151 flow [2021-04-28 20:50:42,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 241.75) internal successors, (967), 4 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:42,909 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:42,909 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:42,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 20:50:42,910 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:42,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:42,910 INFO L82 PathProgramCache]: Analyzing trace with hash 751506069, now seen corresponding path program 1 times [2021-04-28 20:50:42,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:42,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656558836] [2021-04-28 20:50:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:42,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:42,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:43,013 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:43,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:43,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:43,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:43,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656558836] [2021-04-28 20:50:43,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:43,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:43,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128722769] [2021-04-28 20:50:43,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:50:43,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:43,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:50:43,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:50:43,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 408 [2021-04-28 20:50:43,056 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 151 flow. Second operand has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,056 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:43,057 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 408 [2021-04-28 20:50:43,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:43,344 INFO L129 PetriNetUnfolder]: 165/406 cut-off events. [2021-04-28 20:50:43,344 INFO L130 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2021-04-28 20:50:43,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 406 events. 165/406 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2477 event pairs, 88 based on Foata normal form. 4/292 useless extension candidates. Maximal degree in co-relation 852. Up to 191 conditions per place. [2021-04-28 20:50:43,351 INFO L132 encePairwiseOnDemand]: 402/408 looper letters, 11 selfloop transitions, 7 changer transitions 0/64 dead transitions. [2021-04-28 20:50:43,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 211 flow [2021-04-28 20:50:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:50:43,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:50:43,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 970 transitions. [2021-04-28 20:50:43,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5943627450980392 [2021-04-28 20:50:43,356 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 970 transitions. [2021-04-28 20:50:43,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 970 transitions. [2021-04-28 20:50:43,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:43,357 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 970 transitions. [2021-04-28 20:50:43,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 242.5) internal successors, (970), 4 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,367 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,368 INFO L185 Difference]: Start difference. First operand has 67 places, 56 transitions, 151 flow. Second operand 4 states and 970 transitions. [2021-04-28 20:50:43,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 211 flow [2021-04-28 20:50:43,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 64 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:50:43,371 INFO L241 Difference]: Finished difference. Result has 70 places, 59 transitions, 180 flow [2021-04-28 20:50:43,371 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2021-04-28 20:50:43,371 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -86 predicate places. [2021-04-28 20:50:43,372 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:43,372 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 59 transitions, 180 flow [2021-04-28 20:50:43,372 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 59 transitions, 180 flow [2021-04-28 20:50:43,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 59 transitions, 180 flow [2021-04-28 20:50:43,408 INFO L129 PetriNetUnfolder]: 45/206 cut-off events. [2021-04-28 20:50:43,409 INFO L130 PetriNetUnfolder]: For 167/192 co-relation queries the response was YES. [2021-04-28 20:50:43,410 INFO L84 FinitePrefix]: Finished finitePrefix Result has 407 conditions, 206 events. 45/206 cut-off events. For 167/192 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1146 event pairs, 12 based on Foata normal form. 1/129 useless extension candidates. Maximal degree in co-relation 394. Up to 56 conditions per place. [2021-04-28 20:50:43,416 INFO L146 LiptonReduction]: Number of co-enabled transitions 2010 [2021-04-28 20:50:43,575 INFO L158 LiptonReduction]: Checked pairs total: 613 [2021-04-28 20:50:43,575 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:43,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 203 [2021-04-28 20:50:43,577 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 180 flow [2021-04-28 20:50:43,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 238.8) internal successors, (1194), 5 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,578 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:43,578 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:43,578 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 20:50:43,578 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:43,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:43,579 INFO L82 PathProgramCache]: Analyzing trace with hash 797926399, now seen corresponding path program 1 times [2021-04-28 20:50:43,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:43,579 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731767865] [2021-04-28 20:50:43,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:43,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:43,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:43,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:43,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:43,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:43,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:43,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:43,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731767865] [2021-04-28 20:50:43,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:43,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:43,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346886563] [2021-04-28 20:50:43,712 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:50:43,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:43,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:50:43,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:50:43,715 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 408 [2021-04-28 20:50:43,717 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 180 flow. Second operand has 5 states, 5 states have (on average 232.8) internal successors, (1164), 5 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,718 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:43,718 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 408 [2021-04-28 20:50:43,718 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:43,967 INFO L129 PetriNetUnfolder]: 162/433 cut-off events. [2021-04-28 20:50:43,967 INFO L130 PetriNetUnfolder]: For 353/407 co-relation queries the response was YES. [2021-04-28 20:50:43,971 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1040 conditions, 433 events. 162/433 cut-off events. For 353/407 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2757 event pairs, 28 based on Foata normal form. 4/304 useless extension candidates. Maximal degree in co-relation 1025. Up to 231 conditions per place. [2021-04-28 20:50:43,975 INFO L132 encePairwiseOnDemand]: 402/408 looper letters, 13 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2021-04-28 20:50:43,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 65 transitions, 236 flow [2021-04-28 20:50:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:50:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:50:43,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 945 transitions. [2021-04-28 20:50:43,981 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5790441176470589 [2021-04-28 20:50:43,981 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 945 transitions. [2021-04-28 20:50:43,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 945 transitions. [2021-04-28 20:50:43,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:43,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 945 transitions. [2021-04-28 20:50:43,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 236.25) internal successors, (945), 4 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,991 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:43,991 INFO L185 Difference]: Start difference. First operand has 70 places, 59 transitions, 180 flow. Second operand 4 states and 945 transitions. [2021-04-28 20:50:43,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 65 transitions, 236 flow [2021-04-28 20:50:43,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 65 transitions, 230 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 20:50:43,995 INFO L241 Difference]: Finished difference. Result has 73 places, 62 transitions, 208 flow [2021-04-28 20:50:43,996 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2021-04-28 20:50:43,996 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -83 predicate places. [2021-04-28 20:50:43,996 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:43,996 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 62 transitions, 208 flow [2021-04-28 20:50:43,997 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 62 transitions, 208 flow [2021-04-28 20:50:43,997 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 62 transitions, 208 flow [2021-04-28 20:50:44,049 INFO L129 PetriNetUnfolder]: 84/272 cut-off events. [2021-04-28 20:50:44,049 INFO L130 PetriNetUnfolder]: For 372/404 co-relation queries the response was YES. [2021-04-28 20:50:44,051 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 272 events. 84/272 cut-off events. For 372/404 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1634 event pairs, 36 based on Foata normal form. 1/170 useless extension candidates. Maximal degree in co-relation 624. Up to 93 conditions per place. [2021-04-28 20:50:44,058 INFO L146 LiptonReduction]: Number of co-enabled transitions 2174 [2021-04-28 20:50:44,112 INFO L158 LiptonReduction]: Checked pairs total: 430 [2021-04-28 20:50:44,112 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:44,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 117 [2021-04-28 20:50:44,114 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 208 flow [2021-04-28 20:50:44,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 232.8) internal successors, (1164), 5 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:44,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:44,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 20:50:44,115 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:44,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:44,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1044571081, now seen corresponding path program 1 times [2021-04-28 20:50:44,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:44,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145556917] [2021-04-28 20:50:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:44,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:50:44,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:50:44,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:44,221 INFO L142 QuantifierPusher]: treesize reduction 10, result has 81.5 percent of original size [2021-04-28 20:50:44,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-04-28 20:50:44,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:44,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145556917] [2021-04-28 20:50:44,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:44,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:44,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187277764] [2021-04-28 20:50:44,257 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:50:44,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:44,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:50:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:50:44,260 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 408 [2021-04-28 20:50:44,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:44,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 408 [2021-04-28 20:50:44,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:44,527 INFO L129 PetriNetUnfolder]: 184/436 cut-off events. [2021-04-28 20:50:44,528 INFO L130 PetriNetUnfolder]: For 608/734 co-relation queries the response was YES. [2021-04-28 20:50:44,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 436 events. 184/436 cut-off events. For 608/734 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2593 event pairs, 45 based on Foata normal form. 11/336 useless extension candidates. Maximal degree in co-relation 1217. Up to 205 conditions per place. [2021-04-28 20:50:44,536 INFO L132 encePairwiseOnDemand]: 400/408 looper letters, 16 selfloop transitions, 12 changer transitions 0/74 dead transitions. [2021-04-28 20:50:44,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 320 flow [2021-04-28 20:50:44,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:50:44,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:50:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1227 transitions. [2021-04-28 20:50:44,543 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6014705882352941 [2021-04-28 20:50:44,544 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1227 transitions. [2021-04-28 20:50:44,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1227 transitions. [2021-04-28 20:50:44,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:44,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1227 transitions. [2021-04-28 20:50:44,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 245.4) internal successors, (1227), 5 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,554 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,554 INFO L185 Difference]: Start difference. First operand has 73 places, 62 transitions, 208 flow. Second operand 5 states and 1227 transitions. [2021-04-28 20:50:44,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 320 flow [2021-04-28 20:50:44,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 74 transitions, 308 flow, removed 2 selfloop flow, removed 2 redundant places. [2021-04-28 20:50:44,558 INFO L241 Difference]: Finished difference. Result has 77 places, 69 transitions, 273 flow [2021-04-28 20:50:44,559 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=77, PETRI_TRANSITIONS=69} [2021-04-28 20:50:44,559 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -79 predicate places. [2021-04-28 20:50:44,559 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:44,559 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 273 flow [2021-04-28 20:50:44,559 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 273 flow [2021-04-28 20:50:44,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 273 flow [2021-04-28 20:50:44,638 INFO L129 PetriNetUnfolder]: 140/408 cut-off events. [2021-04-28 20:50:44,638 INFO L130 PetriNetUnfolder]: For 720/765 co-relation queries the response was YES. [2021-04-28 20:50:44,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1127 conditions, 408 events. 140/408 cut-off events. For 720/765 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2627 event pairs, 37 based on Foata normal form. 3/286 useless extension candidates. Maximal degree in co-relation 1110. Up to 139 conditions per place. [2021-04-28 20:50:44,652 INFO L146 LiptonReduction]: Number of co-enabled transitions 2430 [2021-04-28 20:50:44,660 INFO L158 LiptonReduction]: Checked pairs total: 564 [2021-04-28 20:50:44,661 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:44,661 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-04-28 20:50:44,662 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 69 transitions, 273 flow [2021-04-28 20:50:44,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:44,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:44,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 20:50:44,663 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:44,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:44,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1044504772, now seen corresponding path program 1 times [2021-04-28 20:50:44,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:44,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886804626] [2021-04-28 20:50:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:44,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:44,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:44,817 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:44,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:50:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:44,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886804626] [2021-04-28 20:50:44,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:44,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:44,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262815143] [2021-04-28 20:50:44,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:50:44,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:44,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:50:44,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:50:44,864 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 408 [2021-04-28 20:50:44,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 69 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:44,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:44,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 408 [2021-04-28 20:50:44,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:45,059 INFO L129 PetriNetUnfolder]: 171/442 cut-off events. [2021-04-28 20:50:45,059 INFO L130 PetriNetUnfolder]: For 828/1052 co-relation queries the response was YES. [2021-04-28 20:50:45,063 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1419 conditions, 442 events. 171/442 cut-off events. For 828/1052 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2758 event pairs, 20 based on Foata normal form. 19/339 useless extension candidates. Maximal degree in co-relation 1400. Up to 211 conditions per place. [2021-04-28 20:50:45,067 INFO L132 encePairwiseOnDemand]: 401/408 looper letters, 17 selfloop transitions, 9 changer transitions 0/72 dead transitions. [2021-04-28 20:50:45,068 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 343 flow [2021-04-28 20:50:45,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:50:45,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:50:45,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1009 transitions. [2021-04-28 20:50:45,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6182598039215687 [2021-04-28 20:50:45,074 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1009 transitions. [2021-04-28 20:50:45,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1009 transitions. [2021-04-28 20:50:45,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:45,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1009 transitions. [2021-04-28 20:50:45,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 252.25) internal successors, (1009), 4 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,082 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,082 INFO L185 Difference]: Start difference. First operand has 77 places, 69 transitions, 273 flow. Second operand 4 states and 1009 transitions. [2021-04-28 20:50:45,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 343 flow [2021-04-28 20:50:45,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 328 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-04-28 20:50:45,087 INFO L241 Difference]: Finished difference. Result has 80 places, 69 transitions, 286 flow [2021-04-28 20:50:45,087 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=286, PETRI_PLACES=80, PETRI_TRANSITIONS=69} [2021-04-28 20:50:45,087 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -76 predicate places. [2021-04-28 20:50:45,087 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:45,087 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 69 transitions, 286 flow [2021-04-28 20:50:45,088 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 69 transitions, 286 flow [2021-04-28 20:50:45,088 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 69 transitions, 286 flow [2021-04-28 20:50:45,183 INFO L129 PetriNetUnfolder]: 134/396 cut-off events. [2021-04-28 20:50:45,184 INFO L130 PetriNetUnfolder]: For 862/904 co-relation queries the response was YES. [2021-04-28 20:50:45,187 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 396 events. 134/396 cut-off events. For 862/904 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2522 event pairs, 35 based on Foata normal form. 3/282 useless extension candidates. Maximal degree in co-relation 1113. Up to 133 conditions per place. [2021-04-28 20:50:45,198 INFO L146 LiptonReduction]: Number of co-enabled transitions 2428 [2021-04-28 20:50:45,275 INFO L158 LiptonReduction]: Checked pairs total: 564 [2021-04-28 20:50:45,275 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:45,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 188 [2021-04-28 20:50:45,276 INFO L480 AbstractCegarLoop]: Abstraction has has 80 places, 69 transitions, 286 flow [2021-04-28 20:50:45,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 249.0) internal successors, (1245), 5 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,277 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:45,277 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:45,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 20:50:45,277 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:45,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:45,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1409820535, now seen corresponding path program 2 times [2021-04-28 20:50:45,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:45,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647288041] [2021-04-28 20:50:45,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:45,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:45,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:45,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:45,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:45,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:45,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 20:50:45,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:45,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 20:50:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:45,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647288041] [2021-04-28 20:50:45,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:45,421 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:50:45,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027910715] [2021-04-28 20:50:45,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:50:45,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:45,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:50:45,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:50:45,427 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 408 [2021-04-28 20:50:45,429 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 69 transitions, 286 flow. Second operand has 6 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 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) [2021-04-28 20:50:45,429 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:45,429 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 408 [2021-04-28 20:50:45,429 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:45,733 INFO L129 PetriNetUnfolder]: 178/430 cut-off events. [2021-04-28 20:50:45,733 INFO L130 PetriNetUnfolder]: For 1224/1440 co-relation queries the response was YES. [2021-04-28 20:50:45,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 430 events. 178/430 cut-off events. For 1224/1440 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 2508 event pairs, 27 based on Foata normal form. 26/349 useless extension candidates. Maximal degree in co-relation 1468. Up to 179 conditions per place. [2021-04-28 20:50:45,744 INFO L132 encePairwiseOnDemand]: 401/408 looper letters, 12 selfloop transitions, 18 changer transitions 0/76 dead transitions. [2021-04-28 20:50:45,744 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 76 transitions, 388 flow [2021-04-28 20:50:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:50:45,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:50:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1172 transitions. [2021-04-28 20:50:45,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5745098039215686 [2021-04-28 20:50:45,751 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1172 transitions. [2021-04-28 20:50:45,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1172 transitions. [2021-04-28 20:50:45,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:45,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1172 transitions. [2021-04-28 20:50:45,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 234.4) internal successors, (1172), 5 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,762 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:45,762 INFO L185 Difference]: Start difference. First operand has 80 places, 69 transitions, 286 flow. Second operand 5 states and 1172 transitions. [2021-04-28 20:50:45,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 76 transitions, 388 flow [2021-04-28 20:50:45,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 76 transitions, 370 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-28 20:50:45,767 INFO L241 Difference]: Finished difference. Result has 82 places, 72 transitions, 344 flow [2021-04-28 20:50:45,767 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=82, PETRI_TRANSITIONS=72} [2021-04-28 20:50:45,767 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -74 predicate places. [2021-04-28 20:50:45,767 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:45,768 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 72 transitions, 344 flow [2021-04-28 20:50:45,768 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 72 transitions, 344 flow [2021-04-28 20:50:45,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 72 transitions, 344 flow [2021-04-28 20:50:45,857 INFO L129 PetriNetUnfolder]: 140/431 cut-off events. [2021-04-28 20:50:45,858 INFO L130 PetriNetUnfolder]: For 1113/1174 co-relation queries the response was YES. [2021-04-28 20:50:45,863 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1404 conditions, 431 events. 140/431 cut-off events. For 1113/1174 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2857 event pairs, 42 based on Foata normal form. 7/312 useless extension candidates. Maximal degree in co-relation 1384. Up to 152 conditions per place. [2021-04-28 20:50:45,876 INFO L146 LiptonReduction]: Number of co-enabled transitions 2594 [2021-04-28 20:50:45,921 INFO L158 LiptonReduction]: Checked pairs total: 686 [2021-04-28 20:50:45,921 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:45,922 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 155 [2021-04-28 20:50:45,923 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 72 transitions, 344 flow [2021-04-28 20:50:45,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 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) [2021-04-28 20:50:45,924 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:45,924 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:45,924 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 20:50:45,924 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:45,925 INFO L82 PathProgramCache]: Analyzing trace with hash -55539464, now seen corresponding path program 1 times [2021-04-28 20:50:45,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:45,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343170068] [2021-04-28 20:50:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:46,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:46,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:46,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 20:50:46,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 20:50:46,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 20:50:46,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:46,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343170068] [2021-04-28 20:50:46,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:46,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:50:46,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128351399] [2021-04-28 20:50:46,188 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:50:46,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:46,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:50:46,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:50:46,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 228 out of 408 [2021-04-28 20:50:46,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 72 transitions, 344 flow. Second operand has 7 states, 7 states have (on average 228.85714285714286) internal successors, (1602), 7 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:46,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 228 of 408 [2021-04-28 20:50:46,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:46,574 INFO L129 PetriNetUnfolder]: 192/527 cut-off events. [2021-04-28 20:50:46,575 INFO L130 PetriNetUnfolder]: For 1373/1730 co-relation queries the response was YES. [2021-04-28 20:50:46,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1912 conditions, 527 events. 192/527 cut-off events. For 1373/1730 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3503 event pairs, 16 based on Foata normal form. 32/407 useless extension candidates. Maximal degree in co-relation 1890. Up to 189 conditions per place. [2021-04-28 20:50:46,586 INFO L132 encePairwiseOnDemand]: 401/408 looper letters, 13 selfloop transitions, 23 changer transitions 0/82 dead transitions. [2021-04-28 20:50:46,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 82 transitions, 493 flow [2021-04-28 20:50:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 20:50:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 20:50:46,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1394 transitions. [2021-04-28 20:50:46,593 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2021-04-28 20:50:46,593 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1394 transitions. [2021-04-28 20:50:46,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1394 transitions. [2021-04-28 20:50:46,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:46,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1394 transitions. [2021-04-28 20:50:46,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 232.33333333333334) internal successors, (1394), 6 states have internal predecessors, (1394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,604 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 408.0) internal successors, (2856), 7 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,604 INFO L185 Difference]: Start difference. First operand has 82 places, 72 transitions, 344 flow. Second operand 6 states and 1394 transitions. [2021-04-28 20:50:46,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 82 transitions, 493 flow [2021-04-28 20:50:46,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 82 transitions, 442 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-04-28 20:50:46,611 INFO L241 Difference]: Finished difference. Result has 85 places, 77 transitions, 407 flow [2021-04-28 20:50:46,611 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=85, PETRI_TRANSITIONS=77} [2021-04-28 20:50:46,612 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -71 predicate places. [2021-04-28 20:50:46,612 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:46,612 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 77 transitions, 407 flow [2021-04-28 20:50:46,612 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 77 transitions, 407 flow [2021-04-28 20:50:46,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 77 transitions, 407 flow [2021-04-28 20:50:46,694 INFO L129 PetriNetUnfolder]: 141/469 cut-off events. [2021-04-28 20:50:46,695 INFO L130 PetriNetUnfolder]: For 1297/1434 co-relation queries the response was YES. [2021-04-28 20:50:46,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1495 conditions, 469 events. 141/469 cut-off events. For 1297/1434 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3281 event pairs, 27 based on Foata normal form. 30/355 useless extension candidates. Maximal degree in co-relation 1474. Up to 162 conditions per place. [2021-04-28 20:50:46,709 INFO L146 LiptonReduction]: Number of co-enabled transitions 2778 [2021-04-28 20:50:46,754 INFO L158 LiptonReduction]: Checked pairs total: 930 [2021-04-28 20:50:46,754 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:46,755 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-04-28 20:50:46,756 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 77 transitions, 407 flow [2021-04-28 20:50:46,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 228.85714285714286) internal successors, (1602), 7 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:46,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:46,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 20:50:46,757 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:46,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:46,758 INFO L82 PathProgramCache]: Analyzing trace with hash -947640354, now seen corresponding path program 2 times [2021-04-28 20:50:46,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:46,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021340114] [2021-04-28 20:50:46,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:46,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:46,872 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 20:50:46,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:46,911 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:46,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 20:50:46,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:46,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 20:50:46,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:46,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021340114] [2021-04-28 20:50:46,958 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:46,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:50:46,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028944764] [2021-04-28 20:50:46,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:50:46,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:46,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:50:46,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:50:46,962 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 408 [2021-04-28 20:50:46,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 77 transitions, 407 flow. Second operand has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:46,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:46,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 408 [2021-04-28 20:50:46,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:47,248 INFO L129 PetriNetUnfolder]: 215/668 cut-off events. [2021-04-28 20:50:47,249 INFO L130 PetriNetUnfolder]: For 2035/2542 co-relation queries the response was YES. [2021-04-28 20:50:47,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2337 conditions, 668 events. 215/668 cut-off events. For 2035/2542 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 4988 event pairs, 45 based on Foata normal form. 24/501 useless extension candidates. Maximal degree in co-relation 2314. Up to 231 conditions per place. [2021-04-28 20:50:47,263 INFO L132 encePairwiseOnDemand]: 403/408 looper letters, 22 selfloop transitions, 16 changer transitions 0/84 dead transitions. [2021-04-28 20:50:47,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 84 transitions, 543 flow [2021-04-28 20:50:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:50:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:50:47,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1022 transitions. [2021-04-28 20:50:47,271 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6262254901960784 [2021-04-28 20:50:47,272 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1022 transitions. [2021-04-28 20:50:47,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1022 transitions. [2021-04-28 20:50:47,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:47,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1022 transitions. [2021-04-28 20:50:47,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 255.5) internal successors, (1022), 4 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,280 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,281 INFO L185 Difference]: Start difference. First operand has 85 places, 77 transitions, 407 flow. Second operand 4 states and 1022 transitions. [2021-04-28 20:50:47,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 84 transitions, 543 flow [2021-04-28 20:50:47,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 84 transitions, 497 flow, removed 8 selfloop flow, removed 3 redundant places. [2021-04-28 20:50:47,287 INFO L241 Difference]: Finished difference. Result has 86 places, 80 transitions, 449 flow [2021-04-28 20:50:47,288 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2021-04-28 20:50:47,288 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -70 predicate places. [2021-04-28 20:50:47,288 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:47,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 80 transitions, 449 flow [2021-04-28 20:50:47,288 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 80 transitions, 449 flow [2021-04-28 20:50:47,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 80 transitions, 449 flow [2021-04-28 20:50:47,390 INFO L129 PetriNetUnfolder]: 145/567 cut-off events. [2021-04-28 20:50:47,390 INFO L130 PetriNetUnfolder]: For 1687/1871 co-relation queries the response was YES. [2021-04-28 20:50:47,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1839 conditions, 567 events. 145/567 cut-off events. For 1687/1871 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4316 event pairs, 27 based on Foata normal form. 26/409 useless extension candidates. Maximal degree in co-relation 1817. Up to 196 conditions per place. [2021-04-28 20:50:47,408 INFO L146 LiptonReduction]: Number of co-enabled transitions 2918 [2021-04-28 20:50:47,423 INFO L158 LiptonReduction]: Checked pairs total: 1092 [2021-04-28 20:50:47,423 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:47,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-04-28 20:50:47,425 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 449 flow [2021-04-28 20:50:47,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 253.0) internal successors, (1518), 6 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,426 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:47,426 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:47,426 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 20:50:47,426 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:47,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:47,427 INFO L82 PathProgramCache]: Analyzing trace with hash -416886634, now seen corresponding path program 1 times [2021-04-28 20:50:47,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:47,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415983509] [2021-04-28 20:50:47,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:47,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:47,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:47,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:50:47,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:47,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:47,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:47,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:47,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415983509] [2021-04-28 20:50:47,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:47,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:47,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752685231] [2021-04-28 20:50:47,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:50:47,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:47,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:50:47,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:50:47,509 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 408 [2021-04-28 20:50:47,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 449 flow. Second operand has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:47,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 408 [2021-04-28 20:50:47,511 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:50:47,753 INFO L129 PetriNetUnfolder]: 240/1070 cut-off events. [2021-04-28 20:50:47,753 INFO L130 PetriNetUnfolder]: For 3366/3767 co-relation queries the response was YES. [2021-04-28 20:50:47,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3212 conditions, 1070 events. 240/1070 cut-off events. For 3366/3767 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 10424 event pairs, 25 based on Foata normal form. 115/780 useless extension candidates. Maximal degree in co-relation 3188. Up to 366 conditions per place. [2021-04-28 20:50:47,774 INFO L132 encePairwiseOnDemand]: 403/408 looper letters, 3 selfloop transitions, 5 changer transitions 0/81 dead transitions. [2021-04-28 20:50:47,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 81 transitions, 467 flow [2021-04-28 20:50:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 20:50:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 20:50:47,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1052 transitions. [2021-04-28 20:50:47,780 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6446078431372549 [2021-04-28 20:50:47,780 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1052 transitions. [2021-04-28 20:50:47,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1052 transitions. [2021-04-28 20:50:47,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:50:47,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1052 transitions. [2021-04-28 20:50:47,783 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,787 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:47,787 INFO L185 Difference]: Start difference. First operand has 86 places, 80 transitions, 449 flow. Second operand 4 states and 1052 transitions. [2021-04-28 20:50:47,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 81 transitions, 467 flow [2021-04-28 20:50:47,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 81 transitions, 438 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-04-28 20:50:47,794 INFO L241 Difference]: Finished difference. Result has 89 places, 81 transitions, 442 flow [2021-04-28 20:50:47,795 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=442, PETRI_PLACES=89, PETRI_TRANSITIONS=81} [2021-04-28 20:50:47,795 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -67 predicate places. [2021-04-28 20:50:47,795 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:50:47,795 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 81 transitions, 442 flow [2021-04-28 20:50:47,795 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 81 transitions, 442 flow [2021-04-28 20:50:47,796 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 81 transitions, 442 flow [2021-04-28 20:50:47,977 INFO L129 PetriNetUnfolder]: 244/1077 cut-off events. [2021-04-28 20:50:47,977 INFO L130 PetriNetUnfolder]: For 2586/2937 co-relation queries the response was YES. [2021-04-28 20:50:47,988 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3023 conditions, 1077 events. 244/1077 cut-off events. For 2586/2937 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 10633 event pairs, 28 based on Foata normal form. 95/764 useless extension candidates. Maximal degree in co-relation 3000. Up to 370 conditions per place. [2021-04-28 20:50:48,015 INFO L146 LiptonReduction]: Number of co-enabled transitions 2964 [2021-04-28 20:50:48,026 INFO L158 LiptonReduction]: Checked pairs total: 696 [2021-04-28 20:50:48,026 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:50:48,027 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 232 [2021-04-28 20:50:48,030 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 81 transitions, 442 flow [2021-04-28 20:50:48,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 262.0) internal successors, (1048), 4 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:48,030 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:50:48,030 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:50:48,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 20:50:48,031 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:50:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:50:48,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1924816318, now seen corresponding path program 2 times [2021-04-28 20:50:48,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:50:48,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94711341] [2021-04-28 20:50:48,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:50:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:50:48,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:48,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:50:48,140 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:50:48,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:50:48,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:50:48,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:50:48,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:50:48,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94711341] [2021-04-28 20:50:48,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:50:48,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 20:50:48,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161323449] [2021-04-28 20:50:48,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 20:50:48,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:50:48,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 20:50:48,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 20:50:48,165 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 408 [2021-04-28 20:50:48,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 442 flow. Second operand has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:50:48,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:50:48,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 408 [2021-04-28 20:50:48,167 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:51:04,256 INFO L129 PetriNetUnfolder]: 91786/136380 cut-off events. [2021-04-28 20:51:04,256 INFO L130 PetriNetUnfolder]: For 37501/48063 co-relation queries the response was YES. [2021-04-28 20:51:05,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 283078 conditions, 136380 events. 91786/136380 cut-off events. For 37501/48063 co-relation queries the response was YES. Maximal size of possible extension queue 25782. Compared 1388408 event pairs, 45821 based on Foata normal form. 2753/36959 useless extension candidates. Maximal degree in co-relation 283053. Up to 87301 conditions per place. [2021-04-28 20:51:05,634 INFO L132 encePairwiseOnDemand]: 388/408 looper letters, 35 selfloop transitions, 33 changer transitions 0/125 dead transitions. [2021-04-28 20:51:05,634 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 125 transitions, 666 flow [2021-04-28 20:51:05,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 20:51:05,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 20:51:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1621 transitions. [2021-04-28 20:51:05,643 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7946078431372549 [2021-04-28 20:51:05,643 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1621 transitions. [2021-04-28 20:51:05,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1621 transitions. [2021-04-28 20:51:05,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:51:05,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1621 transitions. [2021-04-28 20:51:05,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 324.2) internal successors, (1621), 5 states have internal predecessors, (1621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:05,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:05,659 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 408.0) internal successors, (2448), 6 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:05,659 INFO L185 Difference]: Start difference. First operand has 89 places, 81 transitions, 442 flow. Second operand 5 states and 1621 transitions. [2021-04-28 20:51:05,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 125 transitions, 666 flow [2021-04-28 20:51:05,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 125 transitions, 662 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 20:51:05,698 INFO L241 Difference]: Finished difference. Result has 95 places, 112 transitions, 688 flow [2021-04-28 20:51:05,698 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=688, PETRI_PLACES=95, PETRI_TRANSITIONS=112} [2021-04-28 20:51:05,698 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -61 predicate places. [2021-04-28 20:51:05,698 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:51:05,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 112 transitions, 688 flow [2021-04-28 20:51:05,699 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 112 transitions, 688 flow [2021-04-28 20:51:05,700 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 112 transitions, 688 flow [2021-04-28 20:51:19,338 INFO L129 PetriNetUnfolder]: 81926/123675 cut-off events. [2021-04-28 20:51:19,338 INFO L130 PetriNetUnfolder]: For 53534/864954 co-relation queries the response was YES. [2021-04-28 20:51:19,998 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360652 conditions, 123675 events. 81926/123675 cut-off events. For 53534/864954 co-relation queries the response was YES. Maximal size of possible extension queue 23081. Compared 1280386 event pairs, 45594 based on Foata normal form. 169/32585 useless extension candidates. Maximal degree in co-relation 360625. Up to 117221 conditions per place. [2021-04-28 20:51:21,488 INFO L146 LiptonReduction]: Number of co-enabled transitions 4514 [2021-04-28 20:51:21,579 INFO L158 LiptonReduction]: Checked pairs total: 863 [2021-04-28 20:51:21,579 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:51:21,579 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15881 [2021-04-28 20:51:21,580 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 112 transitions, 688 flow [2021-04-28 20:51:21,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 311.75) internal successors, (1247), 4 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:21,581 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:51:21,581 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:51:21,581 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 20:51:21,581 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:51:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:51:21,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1649422920, now seen corresponding path program 1 times [2021-04-28 20:51:21,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:51:21,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730437418] [2021-04-28 20:51:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:51:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:51:21,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:21,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:21,648 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:21,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:51:21,662 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:51:21,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:51:21,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:51:21,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:51:21,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:51:21,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730437418] [2021-04-28 20:51:21,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:51:21,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 20:51:21,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595217940] [2021-04-28 20:51:21,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 20:51:21,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:51:21,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 20:51:21,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 20:51:21,690 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 408 [2021-04-28 20:51:21,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 112 transitions, 688 flow. Second operand has 5 states, 5 states have (on average 311.8) internal successors, (1559), 5 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:21,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:51:21,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 408 [2021-04-28 20:51:21,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:51:42,297 INFO L129 PetriNetUnfolder]: 98752/155481 cut-off events. [2021-04-28 20:51:42,297 INFO L130 PetriNetUnfolder]: For 116306/5612487 co-relation queries the response was YES. [2021-04-28 20:51:43,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 604729 conditions, 155481 events. 98752/155481 cut-off events. For 116306/5612487 co-relation queries the response was YES. Maximal size of possible extension queue 33384. Compared 1725357 event pairs, 18680 based on Foata normal form. 3381/47445 useless extension candidates. Maximal degree in co-relation 604700. Up to 144608 conditions per place. [2021-04-28 20:51:43,990 INFO L132 encePairwiseOnDemand]: 388/408 looper letters, 36 selfloop transitions, 64 changer transitions 1/155 dead transitions. [2021-04-28 20:51:43,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 155 transitions, 1119 flow [2021-04-28 20:51:43,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 20:51:43,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 20:51:43,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2273 transitions. [2021-04-28 20:51:43,998 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7958683473389355 [2021-04-28 20:51:43,998 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2273 transitions. [2021-04-28 20:51:43,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2273 transitions. [2021-04-28 20:51:44,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:51:44,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2273 transitions. [2021-04-28 20:51:44,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 324.7142857142857) internal successors, (2273), 7 states have internal predecessors, (2273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:44,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 408.0) internal successors, (3264), 8 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:44,011 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 408.0) internal successors, (3264), 8 states have internal predecessors, (3264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:51:44,011 INFO L185 Difference]: Start difference. First operand has 95 places, 112 transitions, 688 flow. Second operand 7 states and 2273 transitions. [2021-04-28 20:51:44,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 155 transitions, 1119 flow [2021-04-28 20:51:44,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 155 transitions, 1119 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 20:51:44,227 INFO L241 Difference]: Finished difference. Result has 104 places, 140 transitions, 1109 flow [2021-04-28 20:51:44,227 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1109, PETRI_PLACES=104, PETRI_TRANSITIONS=140} [2021-04-28 20:51:44,227 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -52 predicate places. [2021-04-28 20:51:44,227 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:51:44,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 140 transitions, 1109 flow [2021-04-28 20:51:44,228 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 140 transitions, 1109 flow [2021-04-28 20:51:44,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 140 transitions, 1109 flow [2021-04-28 20:52:01,530 INFO L129 PetriNetUnfolder]: 89418/143534 cut-off events. [2021-04-28 20:52:01,531 INFO L130 PetriNetUnfolder]: For 856924/5769774 co-relation queries the response was YES. [2021-04-28 20:52:02,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 686014 conditions, 143534 events. 89418/143534 cut-off events. For 856924/5769774 co-relation queries the response was YES. Maximal size of possible extension queue 29328. Compared 1635389 event pairs, 18096 based on Foata normal form. 193/39274 useless extension candidates. Maximal degree in co-relation 685982. Up to 136607 conditions per place. [2021-04-28 20:52:04,469 INFO L146 LiptonReduction]: Number of co-enabled transitions 5992 [2021-04-28 20:52:04,562 INFO L158 LiptonReduction]: Checked pairs total: 893 [2021-04-28 20:52:04,562 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:52:04,562 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20335 [2021-04-28 20:52:04,563 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 140 transitions, 1109 flow [2021-04-28 20:52:04,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 311.8) internal successors, (1559), 5 states have internal predecessors, (1559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:52:04,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:52:04,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 20:52:04,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-28 20:52:04,564 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:52:04,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:52:04,565 INFO L82 PathProgramCache]: Analyzing trace with hash -90965864, now seen corresponding path program 1 times [2021-04-28 20:52:04,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:52:04,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380456516] [2021-04-28 20:52:04,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:52:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:52:04,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:52:04,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:52:04,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:52:04,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:52:04,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:52:04,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380456516] [2021-04-28 20:52:04,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:52:04,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 20:52:04,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867484128] [2021-04-28 20:52:04,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 20:52:04,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:52:04,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 20:52:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 20:52:04,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 408 [2021-04-28 20:52:04,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 140 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:52:04,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:52:04,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 408 [2021-04-28 20:52:04,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:52:39,311 INFO L129 PetriNetUnfolder]: 160770/248697 cut-off events. [2021-04-28 20:52:39,312 INFO L130 PetriNetUnfolder]: For 1312070/7918432 co-relation queries the response was YES. [2021-04-28 20:52:40,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1192188 conditions, 248697 events. 160770/248697 cut-off events. For 1312070/7918432 co-relation queries the response was YES. Maximal size of possible extension queue 50604. Compared 2819409 event pairs, 34520 based on Foata normal form. 939/69809 useless extension candidates. Maximal degree in co-relation 1192154. Up to 239693 conditions per place. [2021-04-28 20:52:41,624 INFO L132 encePairwiseOnDemand]: 405/408 looper letters, 3 selfloop transitions, 3 changer transitions 0/140 dead transitions. [2021-04-28 20:52:41,624 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 140 transitions, 1121 flow [2021-04-28 20:52:41,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 20:52:41,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 20:52:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 867 transitions. [2021-04-28 20:52:41,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2021-04-28 20:52:41,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 867 transitions. [2021-04-28 20:52:41,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 867 transitions. [2021-04-28 20:52:41,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:52:41,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 867 transitions. [2021-04-28 20:52:41,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:52:41,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:52:41,636 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 408.0) internal successors, (1632), 4 states have internal predecessors, (1632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:52:41,636 INFO L185 Difference]: Start difference. First operand has 104 places, 140 transitions, 1109 flow. Second operand 3 states and 867 transitions. [2021-04-28 20:52:41,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 140 transitions, 1121 flow [2021-04-28 20:53:37,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 140 transitions, 959 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 20:53:37,484 INFO L241 Difference]: Finished difference. Result has 104 places, 140 transitions, 958 flow [2021-04-28 20:53:37,484 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=947, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=958, PETRI_PLACES=104, PETRI_TRANSITIONS=140} [2021-04-28 20:53:37,484 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -52 predicate places. [2021-04-28 20:53:37,484 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:53:37,484 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 140 transitions, 958 flow [2021-04-28 20:53:37,485 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 140 transitions, 958 flow [2021-04-28 20:53:37,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 140 transitions, 958 flow [2021-04-28 20:54:12,797 INFO L129 PetriNetUnfolder]: 160161/247663 cut-off events. [2021-04-28 20:54:12,798 INFO L130 PetriNetUnfolder]: For 388720/1347663 co-relation queries the response was YES. [2021-04-28 20:54:14,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1111089 conditions, 247663 events. 160161/247663 cut-off events. For 388720/1347663 co-relation queries the response was YES. Maximal size of possible extension queue 48014. Compared 2836392 event pairs, 34014 based on Foata normal form. 179/69259 useless extension candidates. Maximal degree in co-relation 1111057. Up to 212479 conditions per place. [2021-04-28 20:54:17,300 INFO L146 LiptonReduction]: Number of co-enabled transitions 5990 [2021-04-28 20:54:17,565 INFO L158 LiptonReduction]: Checked pairs total: 893 [2021-04-28 20:54:17,565 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:54:17,565 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40081 [2021-04-28 20:54:17,571 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 140 transitions, 958 flow [2021-04-28 20:54:17,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 288.0) internal successors, (864), 3 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:54:17,571 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:54:17,571 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] [2021-04-28 20:54:17,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-28 20:54:17,572 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:54:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:54:17,572 INFO L82 PathProgramCache]: Analyzing trace with hash -941301386, now seen corresponding path program 1 times [2021-04-28 20:54:17,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:54:17,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396434716] [2021-04-28 20:54:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:54:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:54:17,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:54:17,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:54:17,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:54:17,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:54:17,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:54:17,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:54:17,702 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:54:17,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:54:17,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:54:17,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:54:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:54:17,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396434716] [2021-04-28 20:54:17,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:54:17,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 20:54:17,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413324771] [2021-04-28 20:54:17,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 20:54:17,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:54:17,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 20:54:17,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 20:54:17,729 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 408 [2021-04-28 20:54:17,730 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 140 transitions, 958 flow. Second operand has 6 states, 6 states have (on average 311.8333333333333) internal successors, (1871), 6 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:54:17,730 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:54:17,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 408 [2021-04-28 20:54:17,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:54:58,001 INFO L129 PetriNetUnfolder]: 164043/266268 cut-off events. [2021-04-28 20:54:58,001 INFO L130 PetriNetUnfolder]: For 401570/8622815 co-relation queries the response was YES. [2021-04-28 20:54:59,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1444597 conditions, 266268 events. 164043/266268 cut-off events. For 401570/8622815 co-relation queries the response was YES. Maximal size of possible extension queue 56040. Compared 3215210 event pairs, 5297 based on Foata normal form. 5335/81752 useless extension candidates. Maximal degree in co-relation 1444563. Up to 223885 conditions per place. [2021-04-28 20:55:00,487 INFO L132 encePairwiseOnDemand]: 388/408 looper letters, 24 selfloop transitions, 95 changer transitions 12/182 dead transitions. [2021-04-28 20:55:00,487 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 182 transitions, 1588 flow [2021-04-28 20:55:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 20:55:00,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 20:55:00,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2925 transitions. [2021-04-28 20:55:00,496 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7965686274509803 [2021-04-28 20:55:00,497 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2925 transitions. [2021-04-28 20:55:00,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2925 transitions. [2021-04-28 20:55:00,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:55:00,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2925 transitions. [2021-04-28 20:55:00,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 325.0) internal successors, (2925), 9 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:55:00,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 408.0) internal successors, (4080), 10 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:55:00,513 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 408.0) internal successors, (4080), 10 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:55:00,513 INFO L185 Difference]: Start difference. First operand has 104 places, 140 transitions, 958 flow. Second operand 9 states and 2925 transitions. [2021-04-28 20:55:00,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 182 transitions, 1588 flow [2021-04-28 20:55:53,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 182 transitions, 1565 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-28 20:55:53,275 INFO L241 Difference]: Finished difference. Result has 110 places, 167 transitions, 1484 flow [2021-04-28 20:55:53,276 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=894, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1484, PETRI_PLACES=110, PETRI_TRANSITIONS=167} [2021-04-28 20:55:53,276 INFO L343 CegarLoopForPetriNet]: 156 programPoint places, -46 predicate places. [2021-04-28 20:55:53,276 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 20:55:53,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 167 transitions, 1484 flow [2021-04-28 20:55:53,276 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 167 transitions, 1484 flow [2021-04-28 20:55:53,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 167 transitions, 1484 flow [2021-04-28 20:56:23,862 INFO L129 PetriNetUnfolder]: 115632/202227 cut-off events. [2021-04-28 20:56:23,865 INFO L130 PetriNetUnfolder]: For 1138571/4051885 co-relation queries the response was YES. [2021-04-28 20:56:25,390 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1199922 conditions, 202227 events. 115632/202227 cut-off events. For 1138571/4051885 co-relation queries the response was YES. Maximal size of possible extension queue 47355. Compared 2697639 event pairs, 5231 based on Foata normal form. 96/54742 useless extension candidates. Maximal degree in co-relation 1199888. Up to 166699 conditions per place. [2021-04-28 20:56:27,887 INFO L146 LiptonReduction]: Number of co-enabled transitions 6696 [2021-04-28 20:56:28,200 INFO L158 LiptonReduction]: Checked pairs total: 1037 [2021-04-28 20:56:28,200 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 20:56:28,200 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34924 [2021-04-28 20:56:28,201 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 167 transitions, 1484 flow [2021-04-28 20:56:28,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 311.8333333333333) internal successors, (1871), 6 states have internal predecessors, (1871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:56:28,202 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 20:56:28,202 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] [2021-04-28 20:56:28,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-28 20:56:28,202 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 20:56:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 20:56:28,203 INFO L82 PathProgramCache]: Analyzing trace with hash 883210829, now seen corresponding path program 1 times [2021-04-28 20:56:28,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 20:56:28,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137934851] [2021-04-28 20:56:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 20:56:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 20:56:28,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:56:28,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:56:28,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:56:28,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:56:28,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:56:28,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:56:28,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:56:28,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 20:56:28,322 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 20:56:28,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 20:56:28,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 20:56:28,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 20:56:28,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 20:56:28,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137934851] [2021-04-28 20:56:28,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 20:56:28,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 20:56:28,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088847077] [2021-04-28 20:56:28,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 20:56:28,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 20:56:28,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 20:56:28,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 20:56:28,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 311 out of 408 [2021-04-28 20:56:28,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 167 transitions, 1484 flow. Second operand has 7 states, 7 states have (on average 311.85714285714283) internal successors, (2183), 7 states have internal predecessors, (2183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:56:28,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 20:56:28,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 311 of 408 [2021-04-28 20:56:28,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 20:57:08,508 INFO L129 PetriNetUnfolder]: 117225/207462 cut-off events. [2021-04-28 20:57:08,508 INFO L130 PetriNetUnfolder]: For 603115/7127330 co-relation queries the response was YES. [2021-04-28 20:57:10,106 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1417414 conditions, 207462 events. 117225/207462 cut-off events. For 603115/7127330 co-relation queries the response was YES. Maximal size of possible extension queue 49404. Compared 2735645 event pairs, 5 based on Foata normal form. 3867/61504 useless extension candidates. Maximal degree in co-relation 1417378. Up to 167347 conditions per place. [2021-04-28 20:57:10,916 INFO L132 encePairwiseOnDemand]: 388/408 looper letters, 6 selfloop transitions, 113 changer transitions 20/190 dead transitions. [2021-04-28 20:57:10,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 190 transitions, 1972 flow [2021-04-28 20:57:10,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 20:57:10,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 20:57:10,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3553 transitions. [2021-04-28 20:57:10,926 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2021-04-28 20:57:10,926 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3553 transitions. [2021-04-28 20:57:10,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3553 transitions. [2021-04-28 20:57:10,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 20:57:10,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3553 transitions. [2021-04-28 20:57:10,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 323.0) internal successors, (3553), 11 states have internal predecessors, (3553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:57:10,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 408.0) internal successors, (4896), 12 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:57:10,946 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 408.0) internal successors, (4896), 12 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 20:57:10,947 INFO L185 Difference]: Start difference. First operand has 110 places, 167 transitions, 1484 flow. Second operand 11 states and 3553 transitions. [2021-04-28 20:57:10,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 190 transitions, 1972 flow