/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/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:41:55,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:41:55,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:41:55,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:41:55,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:41:55,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:41:55,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:41:55,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:41:55,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:41:55,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:41:55,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:41:55,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:41:55,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:41:55,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:41:55,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:41:55,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:41:55,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:41:55,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:41:55,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:41:55,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:41:55,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:41:55,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:41:55,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:41:55,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:41:55,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:41:55,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:41:55,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:41:55,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:41:55,937 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 00:41:55,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:41:55,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:41:55,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:41:55,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:41:55,997 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:41:55,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:41:55,998 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:41:55,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:41:55,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:41:55,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:41:56,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:41:56,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:41:56,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:41:56,000 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:41:56,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:41:56,001 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:41:56,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:41:56,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:41:56,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:41:56,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:41:56,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:41:56,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:41:56,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:41:56,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:41:56,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:41:56,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:41:56,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:41:56,004 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:41:56,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:41:56,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:41:56,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:41:56,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:41:56,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:41:56,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:41:56,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:41:56,445 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:41:56,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-04-29 00:41:56,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d342f787d/99ddafec5f9e42a783f9def2e2182523/FLAGac764c31a [2021-04-29 00:41:57,200 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:41:57,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2021-04-29 00:41:57,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d342f787d/99ddafec5f9e42a783f9def2e2182523/FLAGac764c31a [2021-04-29 00:41:57,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d342f787d/99ddafec5f9e42a783f9def2e2182523 [2021-04-29 00:41:57,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:41:57,559 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:41:57,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:41:57,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:41:57,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:41:57,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:41:57" (1/1) ... [2021-04-29 00:41:57,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10315300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:57, skipping insertion in model container [2021-04-29 00:41:57,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:41:57" (1/1) ... [2021-04-29 00:41:57,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:41:57,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:41:57,822 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/safe031_tso.oepc.i[950,963] [2021-04-29 00:41:58,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:41:58,107 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:41:58,124 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/safe031_tso.oepc.i[950,963] [2021-04-29 00:41:58,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:41:58,332 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:41:58,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58 WrapperNode [2021-04-29 00:41:58,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:41:58,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:41:58,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:41:58,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:41:58,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:41:58,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:41:58,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:41:58,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:41:58,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (1/1) ... [2021-04-29 00:41:58,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:41:58,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:41:58,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:41:58,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:41:58,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (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 00:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:41:58,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:41:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:41:58,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:41:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:41:58,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:41:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:41:58,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:41:58,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:41:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:41:58,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:41:58,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:41:58,535 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 00:41:58,934 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:41:58,935 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:41:58,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:41:58 BoogieIcfgContainer [2021-04-29 00:41:58,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:41:58,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:41:58,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:41:58,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:41:58,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:41:57" (1/3) ... [2021-04-29 00:41:58,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6964f4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:41:58, skipping insertion in model container [2021-04-29 00:41:58,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:41:58" (2/3) ... [2021-04-29 00:41:58,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6964f4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:41:58, skipping insertion in model container [2021-04-29 00:41:58,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:41:58" (3/3) ... [2021-04-29 00:41:58,951 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2021-04-29 00:41:58,958 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:41:58,964 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:41:58,965 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:41:59,004 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,005 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,005 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,006 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,006 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,007 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,008 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,008 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,009 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,009 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,010 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,010 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,011 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,011 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,012 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,012 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,013 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,013 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,014 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,017 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,017 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,018 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,023 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,023 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,024 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,024 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,027 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,027 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:41:59,030 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:41:59,055 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:41:59,083 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:41:59,083 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:41:59,084 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:41:59,084 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:41:59,084 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:41:59,084 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:41:59,084 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:41:59,084 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:41:59,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:41:59,148 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:41:59,148 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:41:59,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 71 events. 2/71 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. 0/68 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 00:41:59,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:41:59,171 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:41:59,176 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:41:59,198 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:41:59,206 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:41:59,211 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:41:59,258 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:41:59,259 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:41:59,260 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-04-29 00:41:59,265 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:42:02,051 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2021-04-29 00:42:03,500 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:03,821 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:42:03,973 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:42:04,251 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:42:04,534 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:42:04,691 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:42:04,849 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:42:05,224 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:42:05,450 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:42:05,661 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:42:05,876 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:42:06,067 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:06,237 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:42:06,425 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:42:06,611 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:42:06,915 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:42:07,180 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:42:07,295 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 00:42:07,502 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:42:08,719 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:42:08,821 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-29 00:42:09,035 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:42:09,167 INFO L158 LiptonReduction]: Checked pairs total: 6612 [2021-04-29 00:42:09,167 INFO L160 LiptonReduction]: Total number of compositions: 90 [2021-04-29 00:42:09,171 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9999 [2021-04-29 00:42:09,192 INFO L129 PetriNetUnfolder]: 0/61 cut-off events. [2021-04-29 00:42:09,193 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:09,193 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:09,194 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:09,194 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:09,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:09,200 INFO L82 PathProgramCache]: Analyzing trace with hash 356110942, now seen corresponding path program 1 times [2021-04-29 00:42:09,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:09,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651230237] [2021-04-29 00:42:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:09,531 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:09,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:09,547 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 00:42:09,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651230237] [2021-04-29 00:42:09,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:09,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:42:09,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916986427] [2021-04-29 00:42:09,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:42:09,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:09,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:42:09,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:42:09,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:09,580 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 68 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 00:42:09,581 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:09,581 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:09,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:09,778 INFO L129 PetriNetUnfolder]: 257/789 cut-off events. [2021-04-29 00:42:09,778 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:09,782 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 789 events. 257/789 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 6684 event pairs, 85 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 1210. Up to 257 conditions per place. [2021-04-29 00:42:09,786 INFO L132 encePairwiseOnDemand]: 151/164 looper letters, 6 selfloop transitions, 6 changer transitions 33/77 dead transitions. [2021-04-29 00:42:09,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 77 transitions, 225 flow [2021-04-29 00:42:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:42:09,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:42:09,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2021-04-29 00:42:09,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7317073170731707 [2021-04-29 00:42:09,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 360 transitions. [2021-04-29 00:42:09,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 360 transitions. [2021-04-29 00:42:09,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:09,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 360 transitions. [2021-04-29 00:42:09,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 120.0) internal successors, (360), 3 states have internal predecessors, (360), 0 states have call successors, (0), 0 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 00:42:09,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:09,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:09,828 INFO L185 Difference]: Start difference. First operand has 78 places, 68 transitions, 145 flow. Second operand 3 states and 360 transitions. [2021-04-29 00:42:09,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 77 transitions, 225 flow [2021-04-29 00:42:09,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 77 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:42:09,836 INFO L241 Difference]: Finished difference. Result has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:09,839 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=79, PETRI_TRANSITIONS=44} [2021-04-29 00:42:09,840 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:42:09,840 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:09,841 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:09,841 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 44 transitions, 130 flow [2021-04-29 00:42:09,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 44 transitions, 130 flow [2021-04-29 00:42:09,866 INFO L129 PetriNetUnfolder]: 48/216 cut-off events. [2021-04-29 00:42:09,866 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2021-04-29 00:42:09,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 216 events. 48/216 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1399 event pairs, 12 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 365. Up to 61 conditions per place. [2021-04-29 00:42:09,872 INFO L146 LiptonReduction]: Number of co-enabled transitions 988 [2021-04-29 00:42:09,884 INFO L158 LiptonReduction]: Checked pairs total: 87 [2021-04-29 00:42:09,885 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:09,885 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 45 [2021-04-29 00:42:09,887 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 130 flow [2021-04-29 00:42:09,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 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 00:42:09,888 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:09,888 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:09,888 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:42:09,888 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:09,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:09,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1845464117, now seen corresponding path program 1 times [2021-04-29 00:42:09,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:09,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311807506] [2021-04-29 00:42:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:09,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:09,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:10,000 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:10,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:10,011 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 00:42:10,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311807506] [2021-04-29 00:42:10,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:10,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:10,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673582266] [2021-04-29 00:42:10,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:10,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:10,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:10,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:10,024 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:10,025 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 44 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:10,025 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:10,025 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:10,025 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:10,074 INFO L129 PetriNetUnfolder]: 42/188 cut-off events. [2021-04-29 00:42:10,074 INFO L130 PetriNetUnfolder]: For 36/78 co-relation queries the response was YES. [2021-04-29 00:42:10,075 INFO L84 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 188 events. 42/188 cut-off events. For 36/78 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1101 event pairs, 4 based on Foata normal form. 3/124 useless extension candidates. Maximal degree in co-relation 411. Up to 53 conditions per place. [2021-04-29 00:42:10,077 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 8 selfloop transitions, 10 changer transitions 0/50 dead transitions. [2021-04-29 00:42:10,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 50 transitions, 196 flow [2021-04-29 00:42:10,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2021-04-29 00:42:10,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6905487804878049 [2021-04-29 00:42:10,082 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 453 transitions. [2021-04-29 00:42:10,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 453 transitions. [2021-04-29 00:42:10,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:10,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 453 transitions. [2021-04-29 00:42:10,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.25) internal successors, (453), 4 states have internal predecessors, (453), 0 states have call successors, (0), 0 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 00:42:10,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:10,090 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:10,090 INFO L185 Difference]: Start difference. First operand has 50 places, 44 transitions, 130 flow. Second operand 4 states and 453 transitions. [2021-04-29 00:42:10,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 50 transitions, 196 flow [2021-04-29 00:42:10,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:42:10,094 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:10,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2021-04-29 00:42:10,095 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -25 predicate places. [2021-04-29 00:42:10,095 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:10,095 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:10,096 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:10,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:10,117 INFO L129 PetriNetUnfolder]: 42/209 cut-off events. [2021-04-29 00:42:10,118 INFO L130 PetriNetUnfolder]: For 80/89 co-relation queries the response was YES. [2021-04-29 00:42:10,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 209 events. 42/209 cut-off events. For 80/89 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1345 event pairs, 9 based on Foata normal form. 1/130 useless extension candidates. Maximal degree in co-relation 391. Up to 53 conditions per place. [2021-04-29 00:42:10,124 INFO L146 LiptonReduction]: Number of co-enabled transitions 1138 [2021-04-29 00:42:10,142 INFO L158 LiptonReduction]: Checked pairs total: 160 [2021-04-29 00:42:10,142 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:10,142 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 00:42:10,144 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 178 flow [2021-04-29 00:42:10,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:10,145 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:10,145 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:10,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:42:10,145 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:10,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:10,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1845463838, now seen corresponding path program 1 times [2021-04-29 00:42:10,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:10,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623986305] [2021-04-29 00:42:10,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:10,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:10,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:10,198 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:10,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:10,206 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 00:42:10,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623986305] [2021-04-29 00:42:10,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:10,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:10,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177825165] [2021-04-29 00:42:10,208 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:10,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:10,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:10,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:10,211 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:10,212 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 178 flow. Second operand has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:10,212 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:10,212 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:10,212 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:10,263 INFO L129 PetriNetUnfolder]: 35/179 cut-off events. [2021-04-29 00:42:10,263 INFO L130 PetriNetUnfolder]: For 90/147 co-relation queries the response was YES. [2021-04-29 00:42:10,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 179 events. 35/179 cut-off events. For 90/147 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1042 event pairs, 6 based on Foata normal form. 11/122 useless extension candidates. Maximal degree in co-relation 414. Up to 46 conditions per place. [2021-04-29 00:42:10,266 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 10 selfloop transitions, 12 changer transitions 0/54 dead transitions. [2021-04-29 00:42:10,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 54 transitions, 254 flow [2021-04-29 00:42:10,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-04-29 00:42:10,269 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6890243902439024 [2021-04-29 00:42:10,269 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-04-29 00:42:10,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-04-29 00:42:10,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:10,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-04-29 00:42:10,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 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 00:42:10,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:10,274 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:10,275 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 178 flow. Second operand 4 states and 452 transitions. [2021-04-29 00:42:10,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 54 transitions, 254 flow [2021-04-29 00:42:10,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 54 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:10,279 INFO L241 Difference]: Finished difference. Result has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:10,279 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=59, PETRI_TRANSITIONS=54} [2021-04-29 00:42:10,280 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -19 predicate places. [2021-04-29 00:42:10,280 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:10,280 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:10,281 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:10,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:10,303 INFO L129 PetriNetUnfolder]: 35/182 cut-off events. [2021-04-29 00:42:10,303 INFO L130 PetriNetUnfolder]: For 214/224 co-relation queries the response was YES. [2021-04-29 00:42:10,305 INFO L84 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 182 events. 35/182 cut-off events. For 214/224 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1132 event pairs, 7 based on Foata normal form. 1/113 useless extension candidates. Maximal degree in co-relation 430. Up to 46 conditions per place. [2021-04-29 00:42:10,309 INFO L146 LiptonReduction]: Number of co-enabled transitions 1284 [2021-04-29 00:42:10,324 INFO L158 LiptonReduction]: Checked pairs total: 203 [2021-04-29 00:42:10,324 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:10,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-29 00:42:10,326 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 54 transitions, 266 flow [2021-04-29 00:42:10,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 109.75) internal successors, (439), 4 states have internal predecessors, (439), 0 states have call successors, (0), 0 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 00:42:10,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:10,327 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:10,327 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:42:10,327 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:10,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:10,328 INFO L82 PathProgramCache]: Analyzing trace with hash 136729617, now seen corresponding path program 1 times [2021-04-29 00:42:10,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:10,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065973558] [2021-04-29 00:42:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:10,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:10,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:10,427 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:10,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:10,440 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 00:42:10,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065973558] [2021-04-29 00:42:10,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:10,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:10,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088055409] [2021-04-29 00:42:10,441 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:10,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:10,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:10,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:10,445 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:10,446 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:42:10,446 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:10,446 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:10,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:11,774 INFO L129 PetriNetUnfolder]: 5782/9739 cut-off events. [2021-04-29 00:42:11,774 INFO L130 PetriNetUnfolder]: For 2046/2623 co-relation queries the response was YES. [2021-04-29 00:42:11,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20170 conditions, 9739 events. 5782/9739 cut-off events. For 2046/2623 co-relation queries the response was YES. Maximal size of possible extension queue 1860. Compared 85574 event pairs, 2465 based on Foata normal form. 155/2690 useless extension candidates. Maximal degree in co-relation 20152. Up to 6337 conditions per place. [2021-04-29 00:42:11,864 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 29 selfloop transitions, 27 changer transitions 0/89 dead transitions. [2021-04-29 00:42:11,864 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 89 transitions, 448 flow [2021-04-29 00:42:11,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:42:11,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:42:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2021-04-29 00:42:11,868 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6963414634146341 [2021-04-29 00:42:11,869 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 571 transitions. [2021-04-29 00:42:11,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 571 transitions. [2021-04-29 00:42:11,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:11,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 571 transitions. [2021-04-29 00:42:11,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 0 states have call successors, (0), 0 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 00:42:11,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:11,876 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 164.0) internal successors, (984), 6 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:11,877 INFO L185 Difference]: Start difference. First operand has 59 places, 54 transitions, 266 flow. Second operand 5 states and 571 transitions. [2021-04-29 00:42:11,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 89 transitions, 448 flow [2021-04-29 00:42:11,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 89 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:11,885 INFO L241 Difference]: Finished difference. Result has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:11,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=469, PETRI_PLACES=66, PETRI_TRANSITIONS=79} [2021-04-29 00:42:11,886 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -12 predicate places. [2021-04-29 00:42:11,887 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:11,887 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:11,887 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:11,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:12,873 INFO L129 PetriNetUnfolder]: 5070/8773 cut-off events. [2021-04-29 00:42:12,873 INFO L130 PetriNetUnfolder]: For 3637/4476 co-relation queries the response was YES. [2021-04-29 00:42:12,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25075 conditions, 8773 events. 5070/8773 cut-off events. For 3637/4476 co-relation queries the response was YES. Maximal size of possible extension queue 1827. Compared 79815 event pairs, 2303 based on Foata normal form. 19/2592 useless extension candidates. Maximal degree in co-relation 25054. Up to 8051 conditions per place. [2021-04-29 00:42:13,060 INFO L146 LiptonReduction]: Number of co-enabled transitions 1788 [2021-04-29 00:42:13,087 INFO L158 LiptonReduction]: Checked pairs total: 265 [2021-04-29 00:42:13,087 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:13,088 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1202 [2021-04-29 00:42:13,098 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 79 transitions, 469 flow [2021-04-29 00:42:13,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 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 00:42:13,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:13,099 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:13,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:42:13,100 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:13,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:13,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1748993624, now seen corresponding path program 1 times [2021-04-29 00:42:13,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:13,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874859998] [2021-04-29 00:42:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:13,186 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:13,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:13,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:13,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:13,205 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:13,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:13,223 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 00:42:13,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874859998] [2021-04-29 00:42:13,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:13,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:13,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103917414] [2021-04-29 00:42:13,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:42:13,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:13,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:42:13,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:42:13,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:13,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 79 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:42:13,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:13,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:13,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:14,948 INFO L129 PetriNetUnfolder]: 5113/9832 cut-off events. [2021-04-29 00:42:14,949 INFO L130 PetriNetUnfolder]: For 6073/21659 co-relation queries the response was YES. [2021-04-29 00:42:15,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37319 conditions, 9832 events. 5113/9832 cut-off events. For 6073/21659 co-relation queries the response was YES. Maximal size of possible extension queue 2070. Compared 99262 event pairs, 461 based on Foata normal form. 243/3232 useless extension candidates. Maximal degree in co-relation 37296. Up to 8837 conditions per place. [2021-04-29 00:42:15,133 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 21 selfloop transitions, 52 changer transitions 9/115 dead transitions. [2021-04-29 00:42:15,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 115 transitions, 828 flow [2021-04-29 00:42:15,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:42:15,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:42:15,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 801 transitions. [2021-04-29 00:42:15,137 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6977351916376306 [2021-04-29 00:42:15,137 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 801 transitions. [2021-04-29 00:42:15,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 801 transitions. [2021-04-29 00:42:15,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:15,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 801 transitions. [2021-04-29 00:42:15,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 114.42857142857143) internal successors, (801), 7 states have internal predecessors, (801), 0 states have call successors, (0), 0 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 00:42:15,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 00:42:15,145 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 164.0) internal successors, (1312), 8 states have internal predecessors, (1312), 0 states have call successors, (0), 0 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 00:42:15,145 INFO L185 Difference]: Start difference. First operand has 66 places, 79 transitions, 469 flow. Second operand 7 states and 801 transitions. [2021-04-29 00:42:15,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 115 transitions, 828 flow [2021-04-29 00:42:15,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 115 transitions, 828 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:42:15,181 INFO L241 Difference]: Finished difference. Result has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:15,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=808, PETRI_PLACES=75, PETRI_TRANSITIONS=104} [2021-04-29 00:42:15,181 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2021-04-29 00:42:15,182 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:15,182 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:15,182 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:15,183 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:16,136 INFO L129 PetriNetUnfolder]: 3223/7078 cut-off events. [2021-04-29 00:42:16,137 INFO L130 PetriNetUnfolder]: For 13154/20950 co-relation queries the response was YES. [2021-04-29 00:42:16,182 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30229 conditions, 7078 events. 3223/7078 cut-off events. For 13154/20950 co-relation queries the response was YES. Maximal size of possible extension queue 2155. Compared 80035 event pairs, 459 based on Foata normal form. 11/2075 useless extension candidates. Maximal degree in co-relation 30203. Up to 6299 conditions per place. [2021-04-29 00:42:16,299 INFO L146 LiptonReduction]: Number of co-enabled transitions 2134 [2021-04-29 00:42:16,334 INFO L158 LiptonReduction]: Checked pairs total: 330 [2021-04-29 00:42:16,335 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:16,335 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1153 [2021-04-29 00:42:16,336 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 104 transitions, 808 flow [2021-04-29 00:42:16,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 0 states have call successors, (0), 0 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 00:42:16,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:16,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:16,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:42:16,338 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:16,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:16,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1255876448, now seen corresponding path program 1 times [2021-04-29 00:42:16,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:16,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113390902] [2021-04-29 00:42:16,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:16,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:16,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:16,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:16,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:16,379 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 00:42:16,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113390902] [2021-04-29 00:42:16,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:16,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:42:16,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251250752] [2021-04-29 00:42:16,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:42:16,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:16,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:42:16,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:42:16,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 164 [2021-04-29 00:42:16,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 104 transitions, 808 flow. Second operand has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 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 00:42:16,384 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:16,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 164 [2021-04-29 00:42:16,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:18,073 INFO L129 PetriNetUnfolder]: 5550/11566 cut-off events. [2021-04-29 00:42:18,073 INFO L130 PetriNetUnfolder]: For 24890/40707 co-relation queries the response was YES. [2021-04-29 00:42:18,132 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48978 conditions, 11566 events. 5550/11566 cut-off events. For 24890/40707 co-relation queries the response was YES. Maximal size of possible extension queue 2658. Compared 130859 event pairs, 893 based on Foata normal form. 100/3327 useless extension candidates. Maximal degree in co-relation 48950. Up to 10562 conditions per place. [2021-04-29 00:42:18,158 INFO L132 encePairwiseOnDemand]: 161/164 looper letters, 4 selfloop transitions, 8 changer transitions 1/104 dead transitions. [2021-04-29 00:42:18,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 104 transitions, 832 flow [2021-04-29 00:42:18,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:42:18,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:42:18,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 405 transitions. [2021-04-29 00:42:18,161 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.823170731707317 [2021-04-29 00:42:18,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 405 transitions. [2021-04-29 00:42:18,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 405 transitions. [2021-04-29 00:42:18,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:18,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 405 transitions. [2021-04-29 00:42:18,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 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 00:42:18,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:18,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:18,166 INFO L185 Difference]: Start difference. First operand has 75 places, 104 transitions, 808 flow. Second operand 3 states and 405 transitions. [2021-04-29 00:42:18,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 104 transitions, 832 flow [2021-04-29 00:42:19,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 104 transitions, 703 flow, removed 42 selfloop flow, removed 3 redundant places. [2021-04-29 00:42:19,650 INFO L241 Difference]: Finished difference. Result has 75 places, 103 transitions, 699 flow [2021-04-29 00:42:19,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=699, PETRI_PLACES=75, PETRI_TRANSITIONS=103} [2021-04-29 00:42:19,651 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -3 predicate places. [2021-04-29 00:42:19,651 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:19,651 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 103 transitions, 699 flow [2021-04-29 00:42:19,652 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 103 transitions, 699 flow [2021-04-29 00:42:19,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 103 transitions, 699 flow [2021-04-29 00:42:20,883 INFO L129 PetriNetUnfolder]: 5548/11564 cut-off events. [2021-04-29 00:42:20,883 INFO L130 PetriNetUnfolder]: For 9121/9681 co-relation queries the response was YES. [2021-04-29 00:42:20,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38906 conditions, 11564 events. 5548/11564 cut-off events. For 9121/9681 co-relation queries the response was YES. Maximal size of possible extension queue 3055. Compared 134740 event pairs, 892 based on Foata normal form. 9/3228 useless extension candidates. Maximal degree in co-relation 38880. Up to 5360 conditions per place. [2021-04-29 00:42:21,019 INFO L146 LiptonReduction]: Number of co-enabled transitions 2032 [2021-04-29 00:42:21,058 INFO L158 LiptonReduction]: Checked pairs total: 330 [2021-04-29 00:42:21,059 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:21,059 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1408 [2021-04-29 00:42:21,060 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 103 transitions, 699 flow [2021-04-29 00:42:21,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 134.0) internal successors, (402), 3 states have internal predecessors, (402), 0 states have call successors, (0), 0 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 00:42:21,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:21,061 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:21,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:42:21,062 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:21,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:21,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1062339320, now seen corresponding path program 1 times [2021-04-29 00:42:21,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:21,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304248561] [2021-04-29 00:42:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:21,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:21,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:21,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:21,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:21,103 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-04-29 00:42:21,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:21,113 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 00:42:21,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304248561] [2021-04-29 00:42:21,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:21,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:21,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137073929] [2021-04-29 00:42:21,115 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:21,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:21,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:21,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:21,117 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 164 [2021-04-29 00:42:21,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 103 transitions, 699 flow. Second operand has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 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 00:42:21,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:21,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 164 [2021-04-29 00:42:21,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:22,719 INFO L129 PetriNetUnfolder]: 8746/17371 cut-off events. [2021-04-29 00:42:22,719 INFO L130 PetriNetUnfolder]: For 15864/17224 co-relation queries the response was YES. [2021-04-29 00:42:22,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58801 conditions, 17371 events. 8746/17371 cut-off events. For 15864/17224 co-relation queries the response was YES. Maximal size of possible extension queue 4608. Compared 203869 event pairs, 1550 based on Foata normal form. 108/4839 useless extension candidates. Maximal degree in co-relation 58773. Up to 8786 conditions per place. [2021-04-29 00:42:22,788 INFO L132 encePairwiseOnDemand]: 157/164 looper letters, 7 selfloop transitions, 12 changer transitions 10/105 dead transitions. [2021-04-29 00:42:22,788 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 105 transitions, 770 flow [2021-04-29 00:42:22,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:22,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:22,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2021-04-29 00:42:22,791 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6890243902439024 [2021-04-29 00:42:22,791 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:22,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2021-04-29 00:42:22,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 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 00:42:22,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:22,795 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 164.0) internal successors, (820), 5 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 00:42:22,796 INFO L185 Difference]: Start difference. First operand has 75 places, 103 transitions, 699 flow. Second operand 4 states and 452 transitions. [2021-04-29 00:42:22,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 105 transitions, 770 flow [2021-04-29 00:42:25,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 105 transitions, 759 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-29 00:42:25,190 INFO L241 Difference]: Finished difference. Result has 79 places, 95 transitions, 671 flow [2021-04-29 00:42:25,190 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=671, PETRI_PLACES=79, PETRI_TRANSITIONS=95} [2021-04-29 00:42:25,190 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2021-04-29 00:42:25,191 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:25,191 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 95 transitions, 671 flow [2021-04-29 00:42:25,191 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 95 transitions, 671 flow [2021-04-29 00:42:25,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 95 transitions, 671 flow [2021-04-29 00:42:26,115 INFO L129 PetriNetUnfolder]: 5689/11956 cut-off events. [2021-04-29 00:42:26,115 INFO L130 PetriNetUnfolder]: For 11171/12795 co-relation queries the response was YES. [2021-04-29 00:42:26,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41513 conditions, 11956 events. 5689/11956 cut-off events. For 11171/12795 co-relation queries the response was YES. Maximal size of possible extension queue 3330. Compared 139863 event pairs, 1332 based on Foata normal form. 9/3366 useless extension candidates. Maximal degree in co-relation 41484. Up to 7466 conditions per place. [2021-04-29 00:42:26,246 INFO L146 LiptonReduction]: Number of co-enabled transitions 1864 [2021-04-29 00:42:26,274 INFO L158 LiptonReduction]: Checked pairs total: 180 [2021-04-29 00:42:26,274 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:26,274 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1083 [2021-04-29 00:42:26,275 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 95 transitions, 671 flow [2021-04-29 00:42:26,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 110.5) internal successors, (442), 4 states have internal predecessors, (442), 0 states have call successors, (0), 0 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 00:42:26,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:26,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:26,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 00:42:26,276 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:26,277 INFO L82 PathProgramCache]: Analyzing trace with hash -686368811, now seen corresponding path program 1 times [2021-04-29 00:42:26,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:26,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398781183] [2021-04-29 00:42:26,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:26,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:26,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:26,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:26,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:26,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:26,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:26,330 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:42:26,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:42:26,341 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 00:42:26,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398781183] [2021-04-29 00:42:26,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:26,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:42:26,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921632626] [2021-04-29 00:42:26,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:42:26,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:26,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:42:26,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:42:26,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 164 [2021-04-29 00:42:26,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 95 transitions, 671 flow. Second operand has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:42:26,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:26,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 164 [2021-04-29 00:42:26,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:27,925 INFO L129 PetriNetUnfolder]: 4765/12145 cut-off events. [2021-04-29 00:42:27,925 INFO L130 PetriNetUnfolder]: For 13807/45687 co-relation queries the response was YES. [2021-04-29 00:42:27,962 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52263 conditions, 12145 events. 4765/12145 cut-off events. For 13807/45687 co-relation queries the response was YES. Maximal size of possible extension queue 3189. Compared 161157 event pairs, 2 based on Foata normal form. 251/3954 useless extension candidates. Maximal degree in co-relation 52232. Up to 6578 conditions per place. [2021-04-29 00:42:27,974 INFO L132 encePairwiseOnDemand]: 146/164 looper letters, 2 selfloop transitions, 28 changer transitions 70/114 dead transitions. [2021-04-29 00:42:27,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 114 transitions, 960 flow [2021-04-29 00:42:27,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:42:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:42:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1007 transitions. [2021-04-29 00:42:27,979 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6822493224932249 [2021-04-29 00:42:27,979 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1007 transitions. [2021-04-29 00:42:27,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1007 transitions. [2021-04-29 00:42:27,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:27,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1007 transitions. [2021-04-29 00:42:27,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 111.88888888888889) internal successors, (1007), 9 states have internal predecessors, (1007), 0 states have call successors, (0), 0 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 00:42:27,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 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 00:42:27,988 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 164.0) internal successors, (1640), 10 states have internal predecessors, (1640), 0 states have call successors, (0), 0 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 00:42:27,988 INFO L185 Difference]: Start difference. First operand has 79 places, 95 transitions, 671 flow. Second operand 9 states and 1007 transitions. [2021-04-29 00:42:27,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 114 transitions, 960 flow [2021-04-29 00:42:30,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 114 transitions, 949 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 00:42:30,045 INFO L241 Difference]: Finished difference. Result has 89 places, 44 transitions, 372 flow [2021-04-29 00:42:30,046 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=372, PETRI_PLACES=89, PETRI_TRANSITIONS=44} [2021-04-29 00:42:30,046 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, 11 predicate places. [2021-04-29 00:42:30,046 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:30,046 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 44 transitions, 372 flow [2021-04-29 00:42:30,047 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 44 transitions, 372 flow [2021-04-29 00:42:30,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 44 transitions, 372 flow [2021-04-29 00:42:30,072 INFO L129 PetriNetUnfolder]: 81/213 cut-off events. [2021-04-29 00:42:30,072 INFO L130 PetriNetUnfolder]: For 1792/1954 co-relation queries the response was YES. [2021-04-29 00:42:30,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1244 conditions, 213 events. 81/213 cut-off events. For 1792/1954 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 1173 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 1211. Up to 136 conditions per place. [2021-04-29 00:42:30,075 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-29 00:42:30,113 INFO L158 LiptonReduction]: Checked pairs total: 5 [2021-04-29 00:42:30,113 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:42:30,113 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-04-29 00:42:30,115 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 44 transitions, 372 flow [2021-04-29 00:42:30,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 0 states have call successors, (0), 0 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 00:42:30,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:42:30,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:42:30,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 00:42:30,116 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:42:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:42:30,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1497703135, now seen corresponding path program 1 times [2021-04-29 00:42:30,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:42:30,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525574494] [2021-04-29 00:42:30,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:42:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:42:30,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:30,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:42:30,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:30,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:30,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:42:30,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:42:30,158 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 00:42:30,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525574494] [2021-04-29 00:42:30,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:42:30,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:42:30,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427548465] [2021-04-29 00:42:30,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:42:30,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:42:30,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:42:30,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:42:30,161 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 165 [2021-04-29 00:42:30,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 44 transitions, 372 flow. Second operand has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 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 00:42:30,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:42:30,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 165 [2021-04-29 00:42:30,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:42:30,200 INFO L129 PetriNetUnfolder]: 81/186 cut-off events. [2021-04-29 00:42:30,200 INFO L130 PetriNetUnfolder]: For 2102/2268 co-relation queries the response was YES. [2021-04-29 00:42:30,201 INFO L84 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 186 events. 81/186 cut-off events. For 2102/2268 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 815 event pairs, 0 based on Foata normal form. 28/102 useless extension candidates. Maximal degree in co-relation 901. Up to 136 conditions per place. [2021-04-29 00:42:30,202 INFO L132 encePairwiseOnDemand]: 161/165 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2021-04-29 00:42:30,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 43 transitions, 356 flow [2021-04-29 00:42:30,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:42:30,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:42:30,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 473 transitions. [2021-04-29 00:42:30,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7166666666666667 [2021-04-29 00:42:30,204 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 473 transitions. [2021-04-29 00:42:30,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 473 transitions. [2021-04-29 00:42:30,205 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:42:30,205 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 473 transitions. [2021-04-29 00:42:30,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 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 00:42:30,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 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 00:42:30,208 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 165.0) internal successors, (825), 5 states have internal predecessors, (825), 0 states have call successors, (0), 0 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 00:42:30,209 INFO L185 Difference]: Start difference. First operand has 68 places, 44 transitions, 372 flow. Second operand 4 states and 473 transitions. [2021-04-29 00:42:30,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 43 transitions, 356 flow [2021-04-29 00:42:30,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 43 transitions, 202 flow, removed 30 selfloop flow, removed 22 redundant places. [2021-04-29 00:42:30,212 INFO L241 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:30,213 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2021-04-29 00:42:30,213 INFO L343 CegarLoopForPetriNet]: 78 programPoint places, -30 predicate places. [2021-04-29 00:42:30,213 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:42:30,213 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:30,214 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 0 transitions, 0 flow [2021-04-29 00:42:30,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:42:30,214 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:42:30,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:42:30,214 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 00:42:30,214 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:42:30,215 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:42:30,215 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:42:30,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:42:30,216 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:42:30,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 118.0) internal successors, (472), 4 states have internal predecessors, (472), 0 states have call successors, (0), 0 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 00:42:30,216 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 00:42:30,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:42:30 BasicIcfg [2021-04-29 00:42:30,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:42:30,222 INFO L168 Benchmark]: Toolchain (without parser) took 32713.41 ms. Allocated memory was 306.2 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 279.8 MB in the beginning and 7.0 GB in the end (delta: -6.8 GB). Peak memory consumption was 649.3 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:30,222 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 306.2 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:42:30,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.11 ms. Allocated memory is still 306.2 MB. Free memory was 276.7 MB in the beginning and 276.3 MB in the end (delta: 388.4 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:30,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 306.2 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:30,224 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 306.2 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:42:30,224 INFO L168 Benchmark]: RCFGBuilder took 527.24 ms. Allocated memory is still 306.2 MB. Free memory was 273.2 MB in the beginning and 250.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:30,224 INFO L168 Benchmark]: TraceAbstraction took 31278.58 ms. Allocated memory was 306.2 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 250.1 MB in the beginning and 7.0 GB in the end (delta: -6.8 GB). Peak memory consumption was 620.2 MB. Max. memory is 16.0 GB. [2021-04-29 00:42:30,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 306.2 MB. Free memory is still 275.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 772.11 ms. Allocated memory is still 306.2 MB. Free memory was 276.7 MB in the beginning and 276.3 MB in the end (delta: 388.4 kB). Peak memory consumption was 24.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 306.2 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 306.2 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 527.24 ms. Allocated memory is still 306.2 MB. Free memory was 273.2 MB in the beginning and 250.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 31278.58 ms. Allocated memory was 306.2 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 250.1 MB in the beginning and 7.0 GB in the end (delta: -6.8 GB). Peak memory consumption was 620.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9961.0ms, 68 PlacesBefore, 78 PlacesAfterwards, 59 TransitionsBefore, 68 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 90 TotalNumberOfCompositions, 6612 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1838, positive: 1638, positive conditional: 1638, positive unconditional: 0, negative: 200, negative conditional: 200, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 935, positive: 864, positive conditional: 0, positive unconditional: 864, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 935, positive: 864, positive conditional: 0, positive unconditional: 864, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 935, positive: 849, positive conditional: 0, positive unconditional: 849, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 501, positive: 99, positive conditional: 0, positive unconditional: 99, negative: 402, negative conditional: 0, negative unconditional: 402, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1838, positive: 774, positive conditional: 774, positive unconditional: 0, negative: 129, negative conditional: 129, negative unconditional: 0, unknown: 935, unknown conditional: 935, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 930, Positive cache size: 859, Positive conditional cache size: 859, Positive unconditional cache size: 0, Negative cache size: 71, Negative conditional cache size: 71, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5ms, 79 PlacesBefore, 50 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 988 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 87 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 2, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 2, positive unconditional: 7, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 45, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 10, unknown conditional: 10, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 940, Positive cache size: 868, Positive conditional cache size: 868, 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: 46.4ms, 53 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 1138 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 160 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 83, positive: 78, positive conditional: 78, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 2, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 83, positive: 75, positive conditional: 75, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 944, Positive cache size: 871, Positive conditional cache size: 871, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5ms, 59 PlacesBefore, 59 PlacesAfterwards, 54 TransitionsBefore, 54 TransitionsAfterwards, 1284 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 203 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 100, positive: 94, positive conditional: 94, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 100, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 949, Positive cache size: 875, Positive conditional cache size: 875, 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: 1200.3ms, 66 PlacesBefore, 66 PlacesAfterwards, 79 TransitionsBefore, 79 TransitionsAfterwards, 1788 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 265 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 55, positive conditional: 55, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 3, positive unconditional: 3, 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: 6, positive: 6, positive conditional: 0, positive unconditional: 6, 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: 60, positive: 49, positive conditional: 49, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 955, Positive cache size: 881, Positive conditional cache size: 881, 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: 1152.5ms, 75 PlacesBefore, 75 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 2134 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 95, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 10, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 10, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 95, positive: 77, positive conditional: 77, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 968, Positive cache size: 894, Positive conditional cache size: 894, 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: 1407.1ms, 75 PlacesBefore, 75 PlacesAfterwards, 103 TransitionsBefore, 103 TransitionsAfterwards, 2032 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 330 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 110, positive: 105, positive conditional: 105, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 13, positive unconditional: 1, 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: 14, positive: 14, positive conditional: 13, positive unconditional: 1, 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: 14, positive: 14, positive conditional: 0, positive unconditional: 14, 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: 110, positive: 91, positive conditional: 91, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 982, Positive cache size: 908, Positive conditional cache size: 908, 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: 1082.6ms, 79 PlacesBefore, 79 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 1864 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, positive: 93, positive conditional: 93, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 10, positive conditional: 7, 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: 11, positive: 10, positive conditional: 7, 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: 11, positive: 10, positive conditional: 0, positive unconditional: 10, 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 993, Positive cache size: 918, Positive conditional cache size: 918, 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: 66.6ms, 89 PlacesBefore, 68 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, 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: 5, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 994, Positive cache size: 919, Positive conditional cache size: 919, 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: 1.1ms, 48 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): 994, Positive cache size: 919, Positive conditional cache size: 919, Positive unconditional cache size: 0, Negative cache size: 75, Negative conditional cache size: 75, Negative unconditional cache size: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 73 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 31140.1ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 14919.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10095.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 79 SDtfs, 65 SDslu, 26 SDs, 0 SdLazy, 331 SolverSat, 128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 393.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 153.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=808occurred in iteration=5, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.9ms SsaConstructionTime, 192.7ms SatisfiabilityAnalysisTime, 586.9ms InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...