/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:09:57,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:09:57,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:09:57,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:09:57,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:09:57,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:09:57,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:09:57,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:09:57,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:09:57,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:09:57,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:09:57,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:09:57,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:09:57,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:09:57,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:09:57,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:09:57,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:09:57,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:09:57,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:09:57,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:09:57,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:09:57,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:09:57,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:09:57,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:09:57,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:09:57,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:09:57,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:09:57,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:09:57,853 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 [2021-04-29 00:09:57,914 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:09:57,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:09:57,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:09:57,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:09:57,919 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:09:57,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:09:57,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:09:57,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:09:57,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:09:57,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:09:57,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:09:57,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:09:57,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:09:57,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:09:57,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:09:57,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:09:57,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:09:57,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:09:57,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:09:57,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:09:57,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:09:57,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:09:57,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:09:57,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:09:57,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:09:57,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:09:57,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:09:57,926 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:09:57,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:09:57,926 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:09:57,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:09:58,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:09:58,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:09:58,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:09:58,430 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:09:58,431 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:09:58,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-04-29 00:09:58,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456a42d6f/503866a39bc1433d823fc98cb3bfd17d/FLAG320997794 [2021-04-29 00:09:59,341 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:09:59,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2021-04-29 00:09:59,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456a42d6f/503866a39bc1433d823fc98cb3bfd17d/FLAG320997794 [2021-04-29 00:09:59,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/456a42d6f/503866a39bc1433d823fc98cb3bfd17d [2021-04-29 00:09:59,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:09:59,707 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:09:59,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:09:59,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:09:59,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:09:59,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:09:59" (1/1) ... [2021-04-29 00:09:59,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23646e1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:09:59, skipping insertion in model container [2021-04-29 00:09:59,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:09:59" (1/1) ... [2021-04-29 00:09:59,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:09:59,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:10:00,004 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/safe019_pso.opt.i[949,962] [2021-04-29 00:10:00,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:10:00,255 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:10:00,271 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/safe019_pso.opt.i[949,962] [2021-04-29 00:10:00,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:10:00,428 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:10:00,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00 WrapperNode [2021-04-29 00:10:00,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:10:00,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:10:00,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:10:00,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:10:00,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:10:00,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:10:00,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:10:00,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:10:00,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (1/1) ... [2021-04-29 00:10:00,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:10:00,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:10:00,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:10:00,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:10:00,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (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 [2021-04-29 00:10:00,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:10:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:10:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:10:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:10:00,635 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:10:00,635 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:10:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:10:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:10:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:10:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:10:00,636 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-29 00:10:00,636 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-29 00:10:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:10:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:10:00,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:10:00,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:10:00,639 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 00:10:01,079 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:10:01,080 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:10:01,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:10:01 BoogieIcfgContainer [2021-04-29 00:10:01,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:10:01,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:10:01,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:10:01,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:10:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:09:59" (1/3) ... [2021-04-29 00:10:01,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cc12e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:10:01, skipping insertion in model container [2021-04-29 00:10:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:10:00" (2/3) ... [2021-04-29 00:10:01,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8cc12e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:10:01, skipping insertion in model container [2021-04-29 00:10:01,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:10:01" (3/3) ... [2021-04-29 00:10:01,093 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2021-04-29 00:10:01,101 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:10:01,107 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:10:01,109 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:10:01,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,143 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,143 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,144 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,144 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,145 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,146 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,146 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,147 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,147 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,148 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,149 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,149 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,150 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,150 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,150 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,151 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,152 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,152 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,153 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,153 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,153 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,153 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,154 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,154 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,154 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,154 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,155 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,155 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,155 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,158 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,158 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,159 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,163 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,164 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,164 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,164 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,166 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,167 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,169 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,170 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:10:01,171 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:10:01,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 00:10:01,233 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:10:01,233 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:10:01,233 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:10:01,234 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:10:01,234 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:10:01,234 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:10:01,234 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:10:01,234 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:10:01,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:10:01,304 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2021-04-29 00:10:01,305 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:10:01,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2021-04-29 00:10:01,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 86 transitions, 192 flow [2021-04-29 00:10:01,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 68 transitions, 148 flow [2021-04-29 00:10:01,318 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:01,344 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:10:01,352 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 68 transitions, 148 flow [2021-04-29 00:10:01,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 80 places, 68 transitions, 148 flow [2021-04-29 00:10:01,401 INFO L129 PetriNetUnfolder]: 1/68 cut-off events. [2021-04-29 00:10:01,402 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:10:01,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 68 events. 1/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2021-04-29 00:10:01,408 INFO L146 LiptonReduction]: Number of co-enabled transitions 1250 [2021-04-29 00:10:06,441 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:10:06,606 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:10:06,777 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:10:06,944 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:07,107 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:08,988 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:10:09,197 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:10:09,361 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:09,535 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:10,539 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:10:10,757 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:10:10,970 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:10:11,182 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:10:11,356 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:11,518 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:10:11,729 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:11,964 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:12,182 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:10:12,393 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:10:12,699 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:10:12,975 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:10:13,314 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-04-29 00:10:13,637 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:10:13,743 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:10:13,966 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2021-04-29 00:10:14,074 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-29 00:10:14,250 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:14,489 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:14,822 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:10:15,026 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:15,296 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2021-04-29 00:10:15,424 INFO L158 LiptonReduction]: Checked pairs total: 10580 [2021-04-29 00:10:15,424 INFO L160 LiptonReduction]: Total number of compositions: 117 [2021-04-29 00:10:15,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14111 [2021-04-29 00:10:15,455 INFO L129 PetriNetUnfolder]: 0/81 cut-off events. [2021-04-29 00:10:15,455 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:10:15,455 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:15,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:15,457 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:15,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:15,465 INFO L82 PathProgramCache]: Analyzing trace with hash -864012930, now seen corresponding path program 1 times [2021-04-29 00:10:15,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:15,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887972684] [2021-04-29 00:10:15,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:15,811 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:15,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:15,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887972684] [2021-04-29 00:10:15,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:15,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:10:15,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892541613] [2021-04-29 00:10:15,847 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:10:15,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:15,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:10:15,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:10:15,871 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:15,876 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 83 transitions, 178 flow. Second operand has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:15,876 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:15,876 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:15,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:16,100 INFO L129 PetriNetUnfolder]: 264/822 cut-off events. [2021-04-29 00:10:16,100 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:10:16,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 822 events. 264/822 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 7146 event pairs, 147 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 1243. Up to 363 conditions per place. [2021-04-29 00:10:16,111 INFO L132 encePairwiseOnDemand]: 183/203 looper letters, 5 selfloop transitions, 6 changer transitions 43/92 dead transitions. [2021-04-29 00:10:16,112 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 92 transitions, 264 flow [2021-04-29 00:10:16,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:10:16,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:10:16,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 417 transitions. [2021-04-29 00:10:16,133 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6847290640394089 [2021-04-29 00:10:16,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 417 transitions. [2021-04-29 00:10:16,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 417 transitions. [2021-04-29 00:10:16,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:16,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 417 transitions. [2021-04-29 00:10:16,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,161 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,163 INFO L185 Difference]: Start difference. First operand has 96 places, 83 transitions, 178 flow. Second operand 3 states and 417 transitions. [2021-04-29 00:10:16,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 92 transitions, 264 flow [2021-04-29 00:10:16,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 260 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 00:10:16,173 INFO L241 Difference]: Finished difference. Result has 95 places, 49 transitions, 134 flow [2021-04-29 00:10:16,176 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=95, PETRI_TRANSITIONS=49} [2021-04-29 00:10:16,177 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -1 predicate places. [2021-04-29 00:10:16,177 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:16,178 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 49 transitions, 134 flow [2021-04-29 00:10:16,178 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 49 transitions, 134 flow [2021-04-29 00:10:16,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 49 transitions, 134 flow [2021-04-29 00:10:16,203 INFO L129 PetriNetUnfolder]: 45/197 cut-off events. [2021-04-29 00:10:16,203 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:10:16,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 197 events. 45/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1184 event pairs, 27 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 307. Up to 78 conditions per place. [2021-04-29 00:10:16,211 INFO L146 LiptonReduction]: Number of co-enabled transitions 1322 [2021-04-29 00:10:16,238 INFO L158 LiptonReduction]: Checked pairs total: 266 [2021-04-29 00:10:16,239 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:16,239 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-04-29 00:10:16,241 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 134 flow [2021-04-29 00:10:16,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 127.66666666666667) internal successors, (383), 3 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:16,243 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:16,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:10:16,244 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:16,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:16,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1014598601, now seen corresponding path program 1 times [2021-04-29 00:10:16,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:16,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213818798] [2021-04-29 00:10:16,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:16,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:16,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:16,404 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:16,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:16,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213818798] [2021-04-29 00:10:16,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:16,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:10:16,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129967581] [2021-04-29 00:10:16,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:10:16,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:16,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:10:16,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:10:16,422 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:16,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 134 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:16,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:16,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:16,475 INFO L129 PetriNetUnfolder]: 30/159 cut-off events. [2021-04-29 00:10:16,475 INFO L130 PetriNetUnfolder]: For 22/96 co-relation queries the response was YES. [2021-04-29 00:10:16,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 159 events. 30/159 cut-off events. For 22/96 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 907 event pairs, 1 based on Foata normal form. 2/99 useless extension candidates. Maximal degree in co-relation 307. Up to 58 conditions per place. [2021-04-29 00:10:16,478 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 10 selfloop transitions, 8 changer transitions 0/56 dead transitions. [2021-04-29 00:10:16,479 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 56 transitions, 201 flow [2021-04-29 00:10:16,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:10:16,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:10:16,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 524 transitions. [2021-04-29 00:10:16,483 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.645320197044335 [2021-04-29 00:10:16,484 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 524 transitions. [2021-04-29 00:10:16,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 524 transitions. [2021-04-29 00:10:16,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:16,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 524 transitions. [2021-04-29 00:10:16,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,491 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,492 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,492 INFO L185 Difference]: Start difference. First operand has 57 places, 49 transitions, 134 flow. Second operand 4 states and 524 transitions. [2021-04-29 00:10:16,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 56 transitions, 201 flow [2021-04-29 00:10:16,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:10:16,496 INFO L241 Difference]: Finished difference. Result has 61 places, 53 transitions, 175 flow [2021-04-29 00:10:16,496 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2021-04-29 00:10:16,497 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -35 predicate places. [2021-04-29 00:10:16,501 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:16,501 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 53 transitions, 175 flow [2021-04-29 00:10:16,502 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 53 transitions, 175 flow [2021-04-29 00:10:16,503 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 53 transitions, 175 flow [2021-04-29 00:10:16,524 INFO L129 PetriNetUnfolder]: 30/159 cut-off events. [2021-04-29 00:10:16,524 INFO L130 PetriNetUnfolder]: For 32/43 co-relation queries the response was YES. [2021-04-29 00:10:16,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 159 events. 30/159 cut-off events. For 32/43 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 920 event pairs, 12 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 287. Up to 58 conditions per place. [2021-04-29 00:10:16,532 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-29 00:10:16,543 INFO L158 LiptonReduction]: Checked pairs total: 294 [2021-04-29 00:10:16,543 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:16,544 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:10:16,554 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 175 flow [2021-04-29 00:10:16,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,555 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:16,555 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:16,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:10:16,556 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:16,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1014648976, now seen corresponding path program 1 times [2021-04-29 00:10:16,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:16,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698510820] [2021-04-29 00:10:16,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:16,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:16,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:16,698 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:16,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:16,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:16,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698510820] [2021-04-29 00:10:16,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:16,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:10:16,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44186285] [2021-04-29 00:10:16,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:10:16,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:16,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:10:16,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:10:16,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:16,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:16,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:16,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:16,790 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2021-04-29 00:10:16,790 INFO L130 PetriNetUnfolder]: For 54/145 co-relation queries the response was YES. [2021-04-29 00:10:16,792 INFO L84 FinitePrefix]: Finished finitePrefix Result has 324 conditions, 141 events. 25/141 cut-off events. For 54/145 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 772 event pairs, 11 based on Foata normal form. 8/94 useless extension candidates. Maximal degree in co-relation 311. Up to 50 conditions per place. [2021-04-29 00:10:16,793 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 12 selfloop transitions, 8 changer transitions 0/58 dead transitions. [2021-04-29 00:10:16,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 58 transitions, 248 flow [2021-04-29 00:10:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:10:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:10:16,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 521 transitions. [2021-04-29 00:10:16,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416256157635468 [2021-04-29 00:10:16,797 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 521 transitions. [2021-04-29 00:10:16,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 521 transitions. [2021-04-29 00:10:16,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:16,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 521 transitions. [2021-04-29 00:10:16,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,805 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,805 INFO L185 Difference]: Start difference. First operand has 61 places, 53 transitions, 175 flow. Second operand 4 states and 521 transitions. [2021-04-29 00:10:16,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 58 transitions, 248 flow [2021-04-29 00:10:16,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 58 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:10:16,813 INFO L241 Difference]: Finished difference. Result has 67 places, 56 transitions, 237 flow [2021-04-29 00:10:16,813 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=67, PETRI_TRANSITIONS=56} [2021-04-29 00:10:16,814 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:10:16,814 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:16,815 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 56 transitions, 237 flow [2021-04-29 00:10:16,816 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 56 transitions, 237 flow [2021-04-29 00:10:16,817 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 56 transitions, 237 flow [2021-04-29 00:10:16,838 INFO L129 PetriNetUnfolder]: 25/141 cut-off events. [2021-04-29 00:10:16,839 INFO L130 PetriNetUnfolder]: For 109/139 co-relation queries the response was YES. [2021-04-29 00:10:16,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 141 events. 25/141 cut-off events. For 109/139 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 767 event pairs, 5 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 301. Up to 50 conditions per place. [2021-04-29 00:10:16,845 INFO L146 LiptonReduction]: Number of co-enabled transitions 1606 [2021-04-29 00:10:16,862 INFO L158 LiptonReduction]: Checked pairs total: 315 [2021-04-29 00:10:16,862 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:16,863 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-04-29 00:10:16,866 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 56 transitions, 237 flow [2021-04-29 00:10:16,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 127.75) internal successors, (511), 4 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:16,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:16,867 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:16,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:10:16,868 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:16,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1387787261, now seen corresponding path program 1 times [2021-04-29 00:10:16,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:16,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356855175] [2021-04-29 00:10:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:16,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:16,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:16,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:16,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,000 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:17,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:17,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356855175] [2021-04-29 00:10:17,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:17,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:10:17,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861716991] [2021-04-29 00:10:17,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:10:17,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:17,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:10:17,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:10:17,019 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:17,020 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 56 transitions, 237 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:17,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:17,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:17,098 INFO L129 PetriNetUnfolder]: 25/174 cut-off events. [2021-04-29 00:10:17,098 INFO L130 PetriNetUnfolder]: For 159/227 co-relation queries the response was YES. [2021-04-29 00:10:17,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 174 events. 25/174 cut-off events. For 159/227 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1085 event pairs, 5 based on Foata normal form. 9/111 useless extension candidates. Maximal degree in co-relation 420. Up to 57 conditions per place. [2021-04-29 00:10:17,101 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 8 selfloop transitions, 8 changer transitions 12/64 dead transitions. [2021-04-29 00:10:17,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 64 transitions, 341 flow [2021-04-29 00:10:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:10:17,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:10:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 653 transitions. [2021-04-29 00:10:17,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6433497536945813 [2021-04-29 00:10:17,104 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 653 transitions. [2021-04-29 00:10:17,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 653 transitions. [2021-04-29 00:10:17,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:17,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 653 transitions. [2021-04-29 00:10:17,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.6) internal successors, (653), 5 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,113 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,114 INFO L185 Difference]: Start difference. First operand has 67 places, 56 transitions, 237 flow. Second operand 5 states and 653 transitions. [2021-04-29 00:10:17,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 64 transitions, 341 flow [2021-04-29 00:10:17,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 64 transitions, 336 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:10:17,125 INFO L241 Difference]: Finished difference. Result has 71 places, 51 transitions, 220 flow [2021-04-29 00:10:17,126 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2021-04-29 00:10:17,126 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -25 predicate places. [2021-04-29 00:10:17,126 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:17,126 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 51 transitions, 220 flow [2021-04-29 00:10:17,127 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 51 transitions, 220 flow [2021-04-29 00:10:17,127 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 51 transitions, 220 flow [2021-04-29 00:10:17,143 INFO L129 PetriNetUnfolder]: 16/118 cut-off events. [2021-04-29 00:10:17,144 INFO L130 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2021-04-29 00:10:17,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 118 events. 16/118 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 621 event pairs, 8 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 257. Up to 37 conditions per place. [2021-04-29 00:10:17,148 INFO L146 LiptonReduction]: Number of co-enabled transitions 1318 [2021-04-29 00:10:17,168 INFO L158 LiptonReduction]: Checked pairs total: 282 [2021-04-29 00:10:17,168 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:17,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42 [2021-04-29 00:10:17,170 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 220 flow [2021-04-29 00:10:17,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,173 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:17,173 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:17,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:10:17,174 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:17,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1389394301, now seen corresponding path program 2 times [2021-04-29 00:10:17,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:17,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686110491] [2021-04-29 00:10:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:17,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,268 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:17,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:17,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686110491] [2021-04-29 00:10:17,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:17,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:10:17,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685256337] [2021-04-29 00:10:17,282 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:10:17,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:17,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:10:17,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:10:17,285 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:17,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:17,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:17,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:17,333 INFO L129 PetriNetUnfolder]: 13/113 cut-off events. [2021-04-29 00:10:17,333 INFO L130 PetriNetUnfolder]: For 123/125 co-relation queries the response was YES. [2021-04-29 00:10:17,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 113 events. 13/113 cut-off events. For 123/125 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 562 event pairs, 3 based on Foata normal form. 4/71 useless extension candidates. Maximal degree in co-relation 278. Up to 32 conditions per place. [2021-04-29 00:10:17,335 INFO L132 encePairwiseOnDemand]: 196/203 looper letters, 8 selfloop transitions, 9 changer transitions 1/53 dead transitions. [2021-04-29 00:10:17,335 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 53 transitions, 268 flow [2021-04-29 00:10:17,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:10:17,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:10:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2021-04-29 00:10:17,338 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6428571428571429 [2021-04-29 00:10:17,338 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2021-04-29 00:10:17,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2021-04-29 00:10:17,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:17,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2021-04-29 00:10:17,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,346 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,346 INFO L185 Difference]: Start difference. First operand has 69 places, 51 transitions, 220 flow. Second operand 4 states and 522 transitions. [2021-04-29 00:10:17,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 53 transitions, 268 flow [2021-04-29 00:10:17,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 53 transitions, 236 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:10:17,350 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 211 flow [2021-04-29 00:10:17,351 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-04-29 00:10:17,351 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:10:17,351 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:17,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 211 flow [2021-04-29 00:10:17,352 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 211 flow [2021-04-29 00:10:17,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 50 transitions, 211 flow [2021-04-29 00:10:17,368 INFO L129 PetriNetUnfolder]: 13/112 cut-off events. [2021-04-29 00:10:17,368 INFO L130 PetriNetUnfolder]: For 70/71 co-relation queries the response was YES. [2021-04-29 00:10:17,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 112 events. 13/112 cut-off events. For 70/71 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 599 event pairs, 3 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 234. Up to 32 conditions per place. [2021-04-29 00:10:17,373 INFO L146 LiptonReduction]: Number of co-enabled transitions 1256 [2021-04-29 00:10:17,386 INFO L158 LiptonReduction]: Checked pairs total: 275 [2021-04-29 00:10:17,386 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:17,386 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-04-29 00:10:17,388 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 50 transitions, 211 flow [2021-04-29 00:10:17,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.0) internal successors, (512), 4 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,389 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:17,389 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:17,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:10:17,389 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:17,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:17,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1632232426, now seen corresponding path program 1 times [2021-04-29 00:10:17,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:17,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599213468] [2021-04-29 00:10:17,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:17,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:10:17,428 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,439 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:17,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:17,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599213468] [2021-04-29 00:10:17,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:17,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:10:17,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076825206] [2021-04-29 00:10:17,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:10:17,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:17,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:10:17,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:10:17,461 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:10:17,462 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 50 transitions, 211 flow. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,462 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:17,462 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:10:17,462 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:17,506 INFO L129 PetriNetUnfolder]: 8/108 cut-off events. [2021-04-29 00:10:17,506 INFO L130 PetriNetUnfolder]: For 78/80 co-relation queries the response was YES. [2021-04-29 00:10:17,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 108 events. 8/108 cut-off events. For 78/80 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 549 event pairs, 1 based on Foata normal form. 6/68 useless extension candidates. Maximal degree in co-relation 251. Up to 28 conditions per place. [2021-04-29 00:10:17,508 INFO L132 encePairwiseOnDemand]: 198/203 looper letters, 8 selfloop transitions, 7 changer transitions 2/51 dead transitions. [2021-04-29 00:10:17,509 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 51 transitions, 247 flow [2021-04-29 00:10:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:10:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:10:17,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 521 transitions. [2021-04-29 00:10:17,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6416256157635468 [2021-04-29 00:10:17,513 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 521 transitions. [2021-04-29 00:10:17,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 521 transitions. [2021-04-29 00:10:17,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:17,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 521 transitions. [2021-04-29 00:10:17,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,519 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 203.0) internal successors, (1015), 5 states have internal predecessors, (1015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,519 INFO L185 Difference]: Start difference. First operand has 66 places, 50 transitions, 211 flow. Second operand 4 states and 521 transitions. [2021-04-29 00:10:17,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 51 transitions, 247 flow [2021-04-29 00:10:17,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 51 transitions, 229 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:10:17,523 INFO L241 Difference]: Finished difference. Result has 67 places, 48 transitions, 203 flow [2021-04-29 00:10:17,523 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2021-04-29 00:10:17,523 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -29 predicate places. [2021-04-29 00:10:17,524 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:17,524 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 48 transitions, 203 flow [2021-04-29 00:10:17,524 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 48 transitions, 203 flow [2021-04-29 00:10:17,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 48 transitions, 203 flow [2021-04-29 00:10:17,539 INFO L129 PetriNetUnfolder]: 7/98 cut-off events. [2021-04-29 00:10:17,539 INFO L130 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2021-04-29 00:10:17,540 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 98 events. 7/98 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 494 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 202. Up to 26 conditions per place. [2021-04-29 00:10:17,566 INFO L146 LiptonReduction]: Number of co-enabled transitions 1150 [2021-04-29 00:10:17,577 INFO L158 LiptonReduction]: Checked pairs total: 261 [2021-04-29 00:10:17,577 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:17,577 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 53 [2021-04-29 00:10:17,579 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 48 transitions, 203 flow [2021-04-29 00:10:17,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:17,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:17,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:10:17,580 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:17,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:17,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1252199251, now seen corresponding path program 1 times [2021-04-29 00:10:17,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:17,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454270940] [2021-04-29 00:10:17,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:17,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,633 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:10:17,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:10:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:17,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454270940] [2021-04-29 00:10:17,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:17,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:10:17,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970647826] [2021-04-29 00:10:17,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:10:17,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:17,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:10:17,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:10:17,651 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:10:17,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:17,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:10:17,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:17,721 INFO L129 PetriNetUnfolder]: 29/230 cut-off events. [2021-04-29 00:10:17,721 INFO L130 PetriNetUnfolder]: For 317/327 co-relation queries the response was YES. [2021-04-29 00:10:17,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 547 conditions, 230 events. 29/230 cut-off events. For 317/327 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1643 event pairs, 4 based on Foata normal form. 9/144 useless extension candidates. Maximal degree in co-relation 528. Up to 55 conditions per place. [2021-04-29 00:10:17,725 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 11 selfloop transitions, 9 changer transitions 17/69 dead transitions. [2021-04-29 00:10:17,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 69 transitions, 457 flow [2021-04-29 00:10:17,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:10:17,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:10:17,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 637 transitions. [2021-04-29 00:10:17,729 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6275862068965518 [2021-04-29 00:10:17,729 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 637 transitions. [2021-04-29 00:10:17,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 637 transitions. [2021-04-29 00:10:17,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:17,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 637 transitions. [2021-04-29 00:10:17,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.4) internal successors, (637), 5 states have internal predecessors, (637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,736 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,736 INFO L185 Difference]: Start difference. First operand has 66 places, 48 transitions, 203 flow. Second operand 5 states and 637 transitions. [2021-04-29 00:10:17,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 69 transitions, 457 flow [2021-04-29 00:10:17,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 69 transitions, 383 flow, removed 3 selfloop flow, removed 4 redundant places. [2021-04-29 00:10:17,741 INFO L241 Difference]: Finished difference. Result has 68 places, 47 transitions, 199 flow [2021-04-29 00:10:17,742 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=199, PETRI_PLACES=68, PETRI_TRANSITIONS=47} [2021-04-29 00:10:17,742 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2021-04-29 00:10:17,742 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:17,742 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 47 transitions, 199 flow [2021-04-29 00:10:17,743 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 47 transitions, 199 flow [2021-04-29 00:10:17,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 47 transitions, 199 flow [2021-04-29 00:10:17,757 INFO L129 PetriNetUnfolder]: 7/97 cut-off events. [2021-04-29 00:10:17,757 INFO L130 PetriNetUnfolder]: For 98/98 co-relation queries the response was YES. [2021-04-29 00:10:17,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 97 events. 7/97 cut-off events. For 98/98 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 502 event pairs, 2 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 206. Up to 26 conditions per place. [2021-04-29 00:10:17,760 INFO L146 LiptonReduction]: Number of co-enabled transitions 1046 [2021-04-29 00:10:17,764 INFO L158 LiptonReduction]: Checked pairs total: 26 [2021-04-29 00:10:17,764 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:17,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-04-29 00:10:17,766 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 47 transitions, 199 flow [2021-04-29 00:10:17,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 124.0) internal successors, (620), 5 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,766 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:17,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:17,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:10:17,767 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:17,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:17,767 INFO L82 PathProgramCache]: Analyzing trace with hash 202921190, now seen corresponding path program 1 times [2021-04-29 00:10:17,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:17,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346156350] [2021-04-29 00:10:17,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:17,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:17,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:17,818 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:10:17,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:10:17,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:17,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346156350] [2021-04-29 00:10:17,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:17,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:10:17,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31027052] [2021-04-29 00:10:17,828 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:10:17,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:17,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:10:17,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:10:17,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:10:17,831 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 47 transitions, 199 flow. Second operand has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:17,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:17,832 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:10:17,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:26,927 INFO L129 PetriNetUnfolder]: 38720/54194 cut-off events. [2021-04-29 00:10:26,927 INFO L130 PetriNetUnfolder]: For 23162/28690 co-relation queries the response was YES. [2021-04-29 00:10:27,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 111478 conditions, 54194 events. 38720/54194 cut-off events. For 23162/28690 co-relation queries the response was YES. Maximal size of possible extension queue 8940. Compared 442365 event pairs, 22425 based on Foata normal form. 333/15292 useless extension candidates. Maximal degree in co-relation 111459. Up to 35371 conditions per place. [2021-04-29 00:10:27,336 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 35 selfloop transitions, 33 changer transitions 0/91 dead transitions. [2021-04-29 00:10:27,336 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 91 transitions, 423 flow [2021-04-29 00:10:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:10:27,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:10:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2021-04-29 00:10:27,340 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6729064039408867 [2021-04-29 00:10:27,340 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2021-04-29 00:10:27,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2021-04-29 00:10:27,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:27,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2021-04-29 00:10:27,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:27,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:27,348 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:27,349 INFO L185 Difference]: Start difference. First operand has 67 places, 47 transitions, 199 flow. Second operand 5 states and 683 transitions. [2021-04-29 00:10:27,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 91 transitions, 423 flow [2021-04-29 00:10:27,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 393 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-04-29 00:10:27,361 INFO L241 Difference]: Finished difference. Result has 68 places, 78 transitions, 417 flow [2021-04-29 00:10:27,361 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=417, PETRI_PLACES=68, PETRI_TRANSITIONS=78} [2021-04-29 00:10:27,362 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -28 predicate places. [2021-04-29 00:10:27,362 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:27,362 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 78 transitions, 417 flow [2021-04-29 00:10:27,363 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 78 transitions, 417 flow [2021-04-29 00:10:27,364 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 78 transitions, 417 flow [2021-04-29 00:10:32,654 INFO L129 PetriNetUnfolder]: 35940/50906 cut-off events. [2021-04-29 00:10:32,655 INFO L130 PetriNetUnfolder]: For 15796/133889 co-relation queries the response was YES. [2021-04-29 00:10:32,819 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147137 conditions, 50906 events. 35940/50906 cut-off events. For 15796/133889 co-relation queries the response was YES. Maximal size of possible extension queue 7855. Compared 419356 event pairs, 22198 based on Foata normal form. 6/14194 useless extension candidates. Maximal degree in co-relation 147120. Up to 50018 conditions per place. [2021-04-29 00:10:33,328 INFO L146 LiptonReduction]: Number of co-enabled transitions 1374 [2021-04-29 00:10:33,391 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:10:33,391 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:33,392 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6030 [2021-04-29 00:10:33,395 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 78 transitions, 417 flow [2021-04-29 00:10:33,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 123.75) internal successors, (495), 4 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:33,395 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:33,395 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:33,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:10:33,396 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:33,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:33,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1996273240, now seen corresponding path program 1 times [2021-04-29 00:10:33,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:33,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139330460] [2021-04-29 00:10:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:33,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:33,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:33,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:33,459 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:10:33,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:10:33,465 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:10:33,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:10:33,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:33,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139330460] [2021-04-29 00:10:33,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:33,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:10:33,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103347194] [2021-04-29 00:10:33,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:10:33,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:33,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:10:33,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:10:33,479 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:10:33,480 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 78 transitions, 417 flow. Second operand has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:33,480 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:33,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:10:33,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:40,523 INFO L129 PetriNetUnfolder]: 46238/67199 cut-off events. [2021-04-29 00:10:40,523 INFO L130 PetriNetUnfolder]: For 27216/567772 co-relation queries the response was YES. [2021-04-29 00:10:40,737 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260736 conditions, 67199 events. 46238/67199 cut-off events. For 27216/567772 co-relation queries the response was YES. Maximal size of possible extension queue 12312. Compared 583557 event pairs, 11106 based on Foata normal form. 437/21370 useless extension candidates. Maximal degree in co-relation 260717. Up to 64709 conditions per place. [2021-04-29 00:10:40,879 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 36 selfloop transitions, 64 changer transitions 0/123 dead transitions. [2021-04-29 00:10:40,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 123 transitions, 866 flow [2021-04-29 00:10:40,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:10:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:10:40,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 959 transitions. [2021-04-29 00:10:40,885 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6748768472906403 [2021-04-29 00:10:40,885 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 959 transitions. [2021-04-29 00:10:40,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 959 transitions. [2021-04-29 00:10:40,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:40,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 959 transitions. [2021-04-29 00:10:40,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 137.0) internal successors, (959), 7 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:40,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:40,899 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 203.0) internal successors, (1624), 8 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:40,899 INFO L185 Difference]: Start difference. First operand has 68 places, 78 transitions, 417 flow. Second operand 7 states and 959 transitions. [2021-04-29 00:10:40,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 123 transitions, 866 flow [2021-04-29 00:10:40,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 123 transitions, 866 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:10:40,949 INFO L241 Difference]: Finished difference. Result has 77 places, 109 transitions, 861 flow [2021-04-29 00:10:40,949 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=861, PETRI_PLACES=77, PETRI_TRANSITIONS=109} [2021-04-29 00:10:40,950 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -19 predicate places. [2021-04-29 00:10:40,950 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:10:40,951 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 109 transitions, 861 flow [2021-04-29 00:10:40,951 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 109 transitions, 861 flow [2021-04-29 00:10:40,952 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 109 transitions, 861 flow [2021-04-29 00:10:47,466 INFO L129 PetriNetUnfolder]: 43715/63812 cut-off events. [2021-04-29 00:10:47,467 INFO L130 PetriNetUnfolder]: For 48396/161793 co-relation queries the response was YES. [2021-04-29 00:10:47,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 304940 conditions, 63812 events. 43715/63812 cut-off events. For 48396/161793 co-relation queries the response was YES. Maximal size of possible extension queue 11341. Compared 572453 event pairs, 10842 based on Foata normal form. 11/19532 useless extension candidates. Maximal degree in co-relation 304918. Up to 62204 conditions per place. [2021-04-29 00:10:48,500 INFO L146 LiptonReduction]: Number of co-enabled transitions 1870 [2021-04-29 00:10:48,581 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:10:48,582 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:10:48,582 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7632 [2021-04-29 00:10:48,583 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 109 transitions, 861 flow [2021-04-29 00:10:48,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 123.8) internal successors, (619), 5 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:48,583 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:10:48,583 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:10:48,584 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:10:48,584 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:10:48,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:10:48,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1126286506, now seen corresponding path program 1 times [2021-04-29 00:10:48,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:10:48,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084534776] [2021-04-29 00:10:48,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:10:48,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:10:48,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:48,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:48,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:10:48,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:10:48,639 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:10:48,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:10:48,646 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:10:48,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:10:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:10:48,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084534776] [2021-04-29 00:10:48,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:10:48,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:10:48,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492180325] [2021-04-29 00:10:48,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:10:48,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:10:48,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:10:48,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:10:48,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:10:48,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 109 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:48,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:10:48,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:10:48,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:10:57,338 INFO L129 PetriNetUnfolder]: 45284/69197 cut-off events. [2021-04-29 00:10:57,338 INFO L130 PetriNetUnfolder]: For 69177/1708145 co-relation queries the response was YES. [2021-04-29 00:10:57,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397944 conditions, 69197 events. 45284/69197 cut-off events. For 69177/1708145 co-relation queries the response was YES. Maximal size of possible extension queue 14358. Compared 662989 event pairs, 2052 based on Foata normal form. 516/22234 useless extension candidates. Maximal degree in co-relation 397920. Up to 66905 conditions per place. [2021-04-29 00:10:57,744 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 25 selfloop transitions, 107 changer transitions 12/167 dead transitions. [2021-04-29 00:10:57,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 167 transitions, 1679 flow [2021-04-29 00:10:57,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:10:57,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:10:57,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1235 transitions. [2021-04-29 00:10:57,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6759715380405036 [2021-04-29 00:10:57,751 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1235 transitions. [2021-04-29 00:10:57,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1235 transitions. [2021-04-29 00:10:57,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:10:57,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1235 transitions. [2021-04-29 00:10:57,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 137.22222222222223) internal successors, (1235), 9 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:57,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:57,762 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 203.0) internal successors, (2030), 10 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:10:57,762 INFO L185 Difference]: Start difference. First operand has 77 places, 109 transitions, 861 flow. Second operand 9 states and 1235 transitions. [2021-04-29 00:10:57,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 167 transitions, 1679 flow [2021-04-29 00:11:01,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 167 transitions, 1468 flow, removed 78 selfloop flow, removed 3 redundant places. [2021-04-29 00:11:01,774 INFO L241 Difference]: Finished difference. Result has 85 places, 152 transitions, 1411 flow [2021-04-29 00:11:01,774 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1411, PETRI_PLACES=85, PETRI_TRANSITIONS=152} [2021-04-29 00:11:01,774 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -11 predicate places. [2021-04-29 00:11:01,774 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:11:01,775 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 152 transitions, 1411 flow [2021-04-29 00:11:01,775 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 152 transitions, 1411 flow [2021-04-29 00:11:01,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 152 transitions, 1411 flow [2021-04-29 00:11:06,859 INFO L129 PetriNetUnfolder]: 28652/47336 cut-off events. [2021-04-29 00:11:06,860 INFO L130 PetriNetUnfolder]: For 180028/287005 co-relation queries the response was YES. [2021-04-29 00:11:07,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 281090 conditions, 47336 events. 28652/47336 cut-off events. For 180028/287005 co-relation queries the response was YES. Maximal size of possible extension queue 11364. Compared 503778 event pairs, 2052 based on Foata normal form. 5/14131 useless extension candidates. Maximal degree in co-relation 281065. Up to 39331 conditions per place. [2021-04-29 00:11:07,395 INFO L146 LiptonReduction]: Number of co-enabled transitions 2280 [2021-04-29 00:11:07,458 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:11:07,458 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:11:07,458 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5684 [2021-04-29 00:11:07,459 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 152 transitions, 1411 flow [2021-04-29 00:11:07,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 123.83333333333333) internal successors, (743), 6 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:07,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:11:07,460 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:11:07,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 00:11:07,460 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:11:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:11:07,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1842632060, now seen corresponding path program 1 times [2021-04-29 00:11:07,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:11:07,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577256202] [2021-04-29 00:11:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:11:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:11:07,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:11:07,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:11:07,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:11:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:11:07,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:11:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:11:07,518 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:11:07,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:11:07,528 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:11:07,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:11:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:11:07,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577256202] [2021-04-29 00:11:07,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:11:07,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 00:11:07,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334996088] [2021-04-29 00:11:07,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 00:11:07,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:11:07,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 00:11:07,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-29 00:11:07,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:11:07,544 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 152 transitions, 1411 flow. Second operand has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 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) [2021-04-29 00:11:07,544 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:11:07,544 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:11:07,544 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:11:14,138 INFO L129 PetriNetUnfolder]: 27437/47408 cut-off events. [2021-04-29 00:11:14,139 INFO L130 PetriNetUnfolder]: For 133267/1444679 co-relation queries the response was YES. [2021-04-29 00:11:14,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 325758 conditions, 47408 events. 27437/47408 cut-off events. For 133267/1444679 co-relation queries the response was YES. Maximal size of possible extension queue 10065. Compared 517058 event pairs, 0 based on Foata normal form. 458/15048 useless extension candidates. Maximal degree in co-relation 325731. Up to 38926 conditions per place. [2021-04-29 00:11:14,435 INFO L132 encePairwiseOnDemand]: 182/203 looper letters, 6 selfloop transitions, 125 changer transitions 33/187 dead transitions. [2021-04-29 00:11:14,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 187 transitions, 2069 flow [2021-04-29 00:11:14,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 00:11:14,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 00:11:14,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1487 transitions. [2021-04-29 00:11:14,442 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6659202866099417 [2021-04-29 00:11:14,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1487 transitions. [2021-04-29 00:11:14,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1487 transitions. [2021-04-29 00:11:14,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:11:14,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1487 transitions. [2021-04-29 00:11:14,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 135.1818181818182) internal successors, (1487), 11 states have internal predecessors, (1487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:14,453 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:14,454 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 203.0) internal successors, (2436), 12 states have internal predecessors, (2436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:11:14,454 INFO L185 Difference]: Start difference. First operand has 85 places, 152 transitions, 1411 flow. Second operand 11 states and 1487 transitions. [2021-04-29 00:11:14,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 187 transitions, 2069 flow [2021-04-29 00:12:23,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 187 transitions, 1791 flow, removed 96 selfloop flow, removed 4 redundant places. [2021-04-29 00:12:23,619 INFO L241 Difference]: Finished difference. Result has 94 places, 151 transitions, 1444 flow [2021-04-29 00:12:23,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=1134, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1444, PETRI_PLACES=94, PETRI_TRANSITIONS=151} [2021-04-29 00:12:23,619 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -2 predicate places. [2021-04-29 00:12:23,620 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:12:23,620 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 151 transitions, 1444 flow [2021-04-29 00:12:23,620 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 151 transitions, 1444 flow [2021-04-29 00:12:23,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 151 transitions, 1444 flow [2021-04-29 00:12:26,847 INFO L129 PetriNetUnfolder]: 19796/35267 cut-off events. [2021-04-29 00:12:26,847 INFO L130 PetriNetUnfolder]: For 171682/253613 co-relation queries the response was YES. [2021-04-29 00:12:27,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181346 conditions, 35267 events. 19796/35267 cut-off events. For 171682/253613 co-relation queries the response was YES. Maximal size of possible extension queue 9123. Compared 404776 event pairs, 0 based on Foata normal form. 7/10658 useless extension candidates. Maximal degree in co-relation 181318. Up to 28882 conditions per place. [2021-04-29 00:12:27,285 INFO L146 LiptonReduction]: Number of co-enabled transitions 2252 [2021-04-29 00:12:27,363 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:12:27,363 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:12:27,364 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3744 [2021-04-29 00:12:27,365 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 151 transitions, 1444 flow [2021-04-29 00:12:27,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 123.85714285714286) internal successors, (867), 7 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) [2021-04-29 00:12:27,365 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:12:27,365 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] [2021-04-29 00:12:27,366 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 00:12:27,366 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:12:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:12:27,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1353344898, now seen corresponding path program 1 times [2021-04-29 00:12:27,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:12:27,366 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395735937] [2021-04-29 00:12:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:12:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:12:27,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:12:27,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:12:27,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:12:27,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:12:27,405 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:12:27,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:12:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:12:27,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395735937] [2021-04-29 00:12:27,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:12:27,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:12:27,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857398139] [2021-04-29 00:12:27,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:12:27,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:12:27,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:12:27,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:12:27,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 203 [2021-04-29 00:12:27,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 151 transitions, 1444 flow. Second operand has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:12:27,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:12:27,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 203 [2021-04-29 00:12:27,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:12:33,056 INFO L129 PetriNetUnfolder]: 26869/47875 cut-off events. [2021-04-29 00:12:33,056 INFO L130 PetriNetUnfolder]: For 403634/802035 co-relation queries the response was YES. [2021-04-29 00:12:33,302 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245999 conditions, 47875 events. 26869/47875 cut-off events. For 403634/802035 co-relation queries the response was YES. Maximal size of possible extension queue 12636. Compared 552945 event pairs, 0 based on Foata normal form. 92/14097 useless extension candidates. Maximal degree in co-relation 245969. Up to 39178 conditions per place. [2021-04-29 00:12:33,405 INFO L132 encePairwiseOnDemand]: 195/203 looper letters, 9 selfloop transitions, 13 changer transitions 0/158 dead transitions. [2021-04-29 00:12:33,406 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 158 transitions, 1528 flow [2021-04-29 00:12:33,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:12:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:12:33,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 633 transitions. [2021-04-29 00:12:33,410 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6236453201970443 [2021-04-29 00:12:33,410 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 633 transitions. [2021-04-29 00:12:33,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 633 transitions. [2021-04-29 00:12:33,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:12:33,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 633 transitions. [2021-04-29 00:12:33,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 126.6) internal successors, (633), 5 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:12:33,416 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:12:33,417 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:12:33,417 INFO L185 Difference]: Start difference. First operand has 91 places, 151 transitions, 1444 flow. Second operand 5 states and 633 transitions. [2021-04-29 00:12:33,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 158 transitions, 1528 flow [2021-04-29 00:14:51,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 158 transitions, 1141 flow, removed 80 selfloop flow, removed 10 redundant places. [2021-04-29 00:14:51,862 INFO L241 Difference]: Finished difference. Result has 87 places, 157 transitions, 1146 flow [2021-04-29 00:14:51,862 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=1057, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1146, PETRI_PLACES=87, PETRI_TRANSITIONS=157} [2021-04-29 00:14:51,863 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -9 predicate places. [2021-04-29 00:14:51,863 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:14:51,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 157 transitions, 1146 flow [2021-04-29 00:14:51,863 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 157 transitions, 1146 flow [2021-04-29 00:14:51,864 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 157 transitions, 1146 flow [2021-04-29 00:14:55,509 INFO L129 PetriNetUnfolder]: 25323/44948 cut-off events. [2021-04-29 00:14:55,509 INFO L130 PetriNetUnfolder]: For 160536/301601 co-relation queries the response was YES. [2021-04-29 00:14:55,777 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203512 conditions, 44948 events. 25323/44948 cut-off events. For 160536/301601 co-relation queries the response was YES. Maximal size of possible extension queue 11758. Compared 539234 event pairs, 1 based on Foata normal form. 5/13118 useless extension candidates. Maximal degree in co-relation 203485. Up to 35560 conditions per place. [2021-04-29 00:14:56,194 INFO L146 LiptonReduction]: Number of co-enabled transitions 2810 [2021-04-29 00:14:56,330 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:14:56,330 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:14:56,330 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4467 [2021-04-29 00:14:56,333 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 157 transitions, 1146 flow [2021-04-29 00:14:56,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 125.0) internal successors, (500), 4 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,334 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:14:56,334 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] [2021-04-29 00:14:56,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 00:14:56,334 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:14:56,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:14:56,335 INFO L82 PathProgramCache]: Analyzing trace with hash 833956141, now seen corresponding path program 1 times [2021-04-29 00:14:56,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:14:56,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076913092] [2021-04-29 00:14:56,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:14:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:14:56,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:14:56,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:14:56,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:14:56,399 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:14:56,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:14:56,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:14:56,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076913092] [2021-04-29 00:14:56,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:14:56,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:14:56,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891944908] [2021-04-29 00:14:56,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:14:56,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:14:56,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:14:56,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:14:56,414 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 203 [2021-04-29 00:14:56,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 157 transitions, 1146 flow. Second operand has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:14:56,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:14:56,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 203 [2021-04-29 00:14:56,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:15:01,591 INFO L129 PetriNetUnfolder]: 30974/54859 cut-off events. [2021-04-29 00:15:01,591 INFO L130 PetriNetUnfolder]: For 212893/423855 co-relation queries the response was YES. [2021-04-29 00:15:01,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 247595 conditions, 54859 events. 30974/54859 cut-off events. For 212893/423855 co-relation queries the response was YES. Maximal size of possible extension queue 14877. Compared 635069 event pairs, 0 based on Foata normal form. 90/16058 useless extension candidates. Maximal degree in co-relation 247566. Up to 43363 conditions per place. [2021-04-29 00:15:01,981 INFO L132 encePairwiseOnDemand]: 197/203 looper letters, 0 selfloop transitions, 0 changer transitions 158/158 dead transitions. [2021-04-29 00:15:01,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 158 transitions, 1178 flow [2021-04-29 00:15:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:15:01,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:15:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 777 transitions. [2021-04-29 00:15:01,984 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6379310344827587 [2021-04-29 00:15:01,984 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 777 transitions. [2021-04-29 00:15:01,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 777 transitions. [2021-04-29 00:15:01,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:15:01,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 777 transitions. [2021-04-29 00:15:01,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 129.5) internal successors, (777), 6 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:01,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:01,992 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 203.0) internal successors, (1421), 7 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:15:01,992 INFO L185 Difference]: Start difference. First operand has 87 places, 157 transitions, 1146 flow. Second operand 6 states and 777 transitions. [2021-04-29 00:15:01,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 158 transitions, 1178 flow [2021-04-29 00:16:48,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 158 transitions, 1032 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-04-29 00:16:48,091 INFO L241 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2021-04-29 00:16:48,092 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2021-04-29 00:16:48,092 INFO L343 CegarLoopForPetriNet]: 96 programPoint places, -13 predicate places. [2021-04-29 00:16:48,092 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:16:48,092 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 0 transitions, 0 flow [2021-04-29 00:16:48,092 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 0 transitions, 0 flow [2021-04-29 00:16:48,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:16:48,093 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:16:48,093 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:16:48,093 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 00:16:48,093 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:16:48,093 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:16:48,093 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:16:48,094 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:16:48,094 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:16:48,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 128.4) internal successors, (642), 5 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:16:48,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 00:16:48,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:16:48 BasicIcfg [2021-04-29 00:16:48,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:16:48,100 INFO L168 Benchmark]: Toolchain (without parser) took 408452.19 ms. Allocated memory was 302.0 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 276.7 MB in the beginning and 10.2 GB in the end (delta: -10.0 GB). Peak memory consumption was 3.8 GB. Max. memory is 16.0 GB. [2021-04-29 00:16:48,101 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:16:48,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.36 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 280.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:48,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.94 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 279.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:16:48,102 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 302.0 MB. Free memory was 279.5 MB in the beginning and 277.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:48,102 INFO L168 Benchmark]: RCFGBuilder took 563.24 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 253.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:16:48,102 INFO L168 Benchmark]: TraceAbstraction took 407014.68 ms. Allocated memory was 302.0 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 253.2 MB in the beginning and 10.2 GB in the end (delta: -10.0 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.0 GB. [2021-04-29 00:16:48,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 302.0 MB. Free memory was 272.2 MB in the beginning and 272.1 MB in the end (delta: 65.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 716.36 ms. Allocated memory is still 302.0 MB. Free memory was 273.5 MB in the beginning and 280.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 54.94 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 279.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 302.0 MB. Free memory was 279.5 MB in the beginning and 277.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 563.24 ms. Allocated memory is still 302.0 MB. Free memory was 277.4 MB in the beginning and 253.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 407014.68 ms. Allocated memory was 302.0 MB in the beginning and 14.0 GB in the end (delta: 13.7 GB). Free memory was 253.2 MB in the beginning and 10.2 GB in the end (delta: -10.0 GB). Peak memory consumption was 3.7 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14071.9ms, 80 PlacesBefore, 96 PlacesAfterwards, 68 TransitionsBefore, 83 TransitionsAfterwards, 1250 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 10580 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2972, positive: 2708, positive conditional: 2708, positive unconditional: 0, negative: 264, negative conditional: 264, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1352, positive: 1280, positive conditional: 0, positive unconditional: 1280, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1352, positive: 1218, positive conditional: 0, positive unconditional: 1218, negative: 134, negative conditional: 0, negative unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 134, positive: 62, positive conditional: 0, positive unconditional: 62, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 735, positive: 317, positive conditional: 0, positive unconditional: 317, negative: 418, negative conditional: 0, negative unconditional: 418, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2972, positive: 1428, positive conditional: 1428, positive unconditional: 0, negative: 192, negative conditional: 192, negative unconditional: 0, unknown: 1352, unknown conditional: 1352, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1339, Positive cache size: 1267, Positive conditional cache size: 1267, Positive unconditional cache size: 0, Negative cache size: 72, Negative conditional cache size: 72, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.8ms, 95 PlacesBefore, 57 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1322 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 266 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 28, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 4, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 4, positive unconditional: 5, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 14, negative conditional: 6, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1350, Positive cache size: 1276, Positive conditional cache size: 1276, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.5ms, 61 PlacesBefore, 61 PlacesAfterwards, 53 TransitionsBefore, 53 TransitionsAfterwards, 1484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 294 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 32, positive: 25, positive conditional: 25, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 32, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1354, Positive cache size: 1280, Positive conditional cache size: 1280, Positive unconditional cache size: 0, Negative cache size: 74, Negative conditional cache size: 74, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.3ms, 67 PlacesBefore, 67 PlacesAfterwards, 56 TransitionsBefore, 56 TransitionsAfterwards, 1606 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 315 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1367, Positive cache size: 1292, Positive conditional cache size: 1292, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.5ms, 71 PlacesBefore, 69 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 1318 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 282 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1367, Positive cache size: 1292, Positive conditional cache size: 1292, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.4ms, 67 PlacesBefore, 66 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 1256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 275 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 22, positive: 21, positive conditional: 18, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 22, positive: 21, positive conditional: 18, positive unconditional: 3, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 22, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1389, Positive cache size: 1313, Positive conditional cache size: 1313, Positive unconditional cache size: 0, Negative cache size: 76, Negative conditional cache size: 76, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.0ms, 67 PlacesBefore, 66 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 1150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 43, positive: 36, positive conditional: 36, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 8, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 8, positive unconditional: 8, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 43, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 17, unknown conditional: 17, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1406, Positive cache size: 1329, Positive conditional cache size: 1329, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.3ms, 68 PlacesBefore, 67 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 1046 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 26 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6029.0ms, 68 PlacesBefore, 68 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 1374 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7630.7ms, 77 PlacesBefore, 77 PlacesAfterwards, 109 TransitionsBefore, 109 TransitionsAfterwards, 1870 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5682.9ms, 85 PlacesBefore, 85 PlacesAfterwards, 152 TransitionsBefore, 152 TransitionsAfterwards, 2280 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3743.4ms, 94 PlacesBefore, 91 PlacesAfterwards, 151 TransitionsBefore, 151 TransitionsAfterwards, 2252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4466.8ms, 87 PlacesBefore, 87 PlacesAfterwards, 157 TransitionsBefore, 157 TransitionsAfterwards, 2810 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.0ms, 83 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1409, Positive cache size: 1332, Positive conditional cache size: 1332, Positive unconditional cache size: 0, Negative cache size: 77, Negative conditional cache size: 77, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 16.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 406870.9ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 363151.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14204.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 120 SDtfs, 143 SDslu, 70 SDs, 0 SdLazy, 704 SolverSat, 277 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 810.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 316.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1444occurred in iteration=11, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 46.0ms SsaConstructionTime, 292.3ms SatisfiabilityAnalysisTime, 942.8ms InterpolantComputationTime, 185 NumberOfCodeBlocks, 185 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...