/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/safe032_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:44:07,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:44:07,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:44:07,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:44:07,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:44:07,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:44:07,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:44:07,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:44:07,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:44:07,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:44:07,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:44:07,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:44:07,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:44:07,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:44:07,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:44:07,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:44:07,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:44:07,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:44:07,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:44:07,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:44:07,405 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 00:44:07,461 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:44:07,461 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:44:07,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:44:07,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:44:07,467 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:44:07,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:44:07,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:44:07,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:44:07,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:44:07,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:44:07,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:44:07,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:44:07,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:44:07,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:44:07,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:44:07,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:44:07,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:44:07,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:44:07,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:44:07,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:44:07,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:44:07,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:44:07,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:44:07,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:44:07,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:44:07,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:44:07,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:44:07,481 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:44:07,481 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:44:07,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:44:07,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:44:07,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:44:07,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:44:07,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:44:07,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:44:07,961 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:44:07,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-04-29 00:44:08,063 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed8bb48/fd2b20e279bf48719aab73c8a6133db4/FLAGb3ab97bec [2021-04-29 00:44:08,880 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:44:08,881 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.oepc.i [2021-04-29 00:44:08,900 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed8bb48/fd2b20e279bf48719aab73c8a6133db4/FLAGb3ab97bec [2021-04-29 00:44:09,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ed8bb48/fd2b20e279bf48719aab73c8a6133db4 [2021-04-29 00:44:09,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:44:09,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:44:09,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:44:09,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:44:09,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:44:09,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:44:09" (1/1) ... [2021-04-29 00:44:09,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5353259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:09, skipping insertion in model container [2021-04-29 00:44:09,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:44:09" (1/1) ... [2021-04-29 00:44:09,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:44:09,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:44:09,429 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/safe032_tso.oepc.i[950,963] [2021-04-29 00:44:09,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:44:09,771 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:44:09,788 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/safe032_tso.oepc.i[950,963] [2021-04-29 00:44:09,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:44:10,014 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:44:10,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10 WrapperNode [2021-04-29 00:44:10,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:44:10,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:44:10,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:44:10,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:44:10,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:44:10,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:44:10,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:44:10,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:44:10,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (1/1) ... [2021-04-29 00:44:10,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:44:10,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:44:10,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:44:10,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:44:10,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (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 00:44:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:44:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:44:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:44:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:44:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:44:10,224 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:44:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:44:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:44:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-29 00:44:10,225 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-29 00:44:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:44:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:44:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:44:10,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:44:10,228 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 00:44:10,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:44:10,678 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:44:10,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:44:10 BoogieIcfgContainer [2021-04-29 00:44:10,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:44:10,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:44:10,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:44:10,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:44:10,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:44:09" (1/3) ... [2021-04-29 00:44:10,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0250e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:44:10, skipping insertion in model container [2021-04-29 00:44:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:44:10" (2/3) ... [2021-04-29 00:44:10,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0250e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:44:10, skipping insertion in model container [2021-04-29 00:44:10,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:44:10" (3/3) ... [2021-04-29 00:44:10,691 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.oepc.i [2021-04-29 00:44:10,699 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:44:10,707 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:44:10,708 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:44:10,742 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,743 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,743 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,744 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,744 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,745 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,745 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,746 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,747 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,748 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,748 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,748 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,749 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,749 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,750 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,751 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,752 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,752 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,753 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,753 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,753 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,754 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,755 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,758 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,759 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,759 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,765 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,766 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,766 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,769 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,769 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,770 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:44:10,772 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:44:10,802 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 00:44:10,837 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:44:10,838 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:44:10,838 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:44:10,838 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:44:10,838 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:44:10,838 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:44:10,838 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:44:10,839 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:44:10,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:44:10,913 INFO L129 PetriNetUnfolder]: 2/71 cut-off events. [2021-04-29 00:44:10,913 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:10,919 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 54 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 00:44:10,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 74 transitions, 163 flow [2021-04-29 00:44:10,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:10,928 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:10,953 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:10,959 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:10,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 59 transitions, 127 flow [2021-04-29 00:44:10,991 INFO L129 PetriNetUnfolder]: 1/59 cut-off events. [2021-04-29 00:44:10,991 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:10,992 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 46 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 00:44:10,996 INFO L146 LiptonReduction]: Number of co-enabled transitions 864 [2021-04-29 00:44:15,283 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:44:15,443 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:44:15,895 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:44:16,068 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:44:16,227 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:16,380 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:16,547 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:16,697 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:44:17,078 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:17,299 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:17,498 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:17,705 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:17,904 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:18,126 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:18,363 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:18,602 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:18,816 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:44:18,996 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:44:19,205 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:19,414 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:44:19,613 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:44:19,808 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:44:20,011 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:20,219 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:44:20,796 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:44:21,106 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2021-04-29 00:44:21,399 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:44:21,677 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-04-29 00:44:21,802 INFO L158 LiptonReduction]: Checked pairs total: 6628 [2021-04-29 00:44:21,802 INFO L160 LiptonReduction]: Total number of compositions: 91 [2021-04-29 00:44:21,806 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10880 [2021-04-29 00:44:21,829 INFO L129 PetriNetUnfolder]: 0/66 cut-off events. [2021-04-29 00:44:21,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:21,830 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:21,831 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:21,831 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:21,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:21,838 INFO L82 PathProgramCache]: Analyzing trace with hash 213441385, now seen corresponding path program 1 times [2021-04-29 00:44:21,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:21,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959587753] [2021-04-29 00:44:21,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:22,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:22,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:22,213 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 00:44:22,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959587753] [2021-04-29 00:44:22,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:22,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:44:22,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759865697] [2021-04-29 00:44:22,227 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:44:22,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:22,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:44:22,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:44:22,253 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 165 [2021-04-29 00:44:22,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 70 transitions, 149 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 00:44:22,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:22,261 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 165 [2021-04-29 00:44:22,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:22,354 INFO L129 PetriNetUnfolder]: 5/80 cut-off events. [2021-04-29 00:44:22,355 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:22,355 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 80 events. 5/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 394 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 77. Up to 17 conditions per place. [2021-04-29 00:44:22,357 INFO L132 encePairwiseOnDemand]: 150/165 looper letters, 1 selfloop transitions, 2 changer transitions 50/75 dead transitions. [2021-04-29 00:44:22,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 209 flow [2021-04-29 00:44:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:44:22,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:44:22,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2021-04-29 00:44:22,378 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.793939393939394 [2021-04-29 00:44:22,379 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2021-04-29 00:44:22,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2021-04-29 00:44:22,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:22,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2021-04-29 00:44:22,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 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 00:44:22,401 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 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 00:44:22,402 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 165.0) internal successors, (660), 4 states have internal predecessors, (660), 0 states have call successors, (0), 0 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 00:44:22,404 INFO L185 Difference]: Start difference. First operand has 80 places, 70 transitions, 149 flow. Second operand 3 states and 393 transitions. [2021-04-29 00:44:22,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 209 flow [2021-04-29 00:44:22,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 206 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 00:44:22,412 INFO L241 Difference]: Finished difference. Result has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:22,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=80, PETRI_TRANSITIONS=25} [2021-04-29 00:44:22,416 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 0 predicate places. [2021-04-29 00:44:22,416 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:22,416 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:22,417 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 25 transitions, 64 flow [2021-04-29 00:44:22,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 64 flow [2021-04-29 00:44:22,422 INFO L129 PetriNetUnfolder]: 0/25 cut-off events. [2021-04-29 00:44:22,422 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:22,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 25 events. 0/25 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 57 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:44:22,423 INFO L146 LiptonReduction]: Number of co-enabled transitions 324 [2021-04-29 00:44:22,479 INFO L158 LiptonReduction]: Checked pairs total: 287 [2021-04-29 00:44:22,479 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:22,479 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 63 [2021-04-29 00:44:22,481 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 64 flow [2021-04-29 00:44:22,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 0 states have call successors, (0), 0 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 00:44:22,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:22,482 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:22,483 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:44:22,483 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:22,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:22,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1041306806, now seen corresponding path program 1 times [2021-04-29 00:44:22,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:22,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95045772] [2021-04-29 00:44:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:22,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:22,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:44:22,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:22,604 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:44:22,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:44:22,616 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 00:44:22,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95045772] [2021-04-29 00:44:22,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:22,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:44:22,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408051710] [2021-04-29 00:44:22,618 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:22,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:22,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:22,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:22,629 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 165 [2021-04-29 00:44:22,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 00:44:22,630 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:22,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 165 [2021-04-29 00:44:22,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:22,707 INFO L129 PetriNetUnfolder]: 47/203 cut-off events. [2021-04-29 00:44:22,708 INFO L130 PetriNetUnfolder]: For 24/38 co-relation queries the response was YES. [2021-04-29 00:44:22,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 203 events. 47/203 cut-off events. For 24/38 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1199 event pairs, 4 based on Foata normal form. 16/154 useless extension candidates. Maximal degree in co-relation 344. Up to 41 conditions per place. [2021-04-29 00:44:22,710 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 8 selfloop transitions, 8 changer transitions 3/36 dead transitions. [2021-04-29 00:44:22,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 130 flow [2021-04-29 00:44:22,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:44:22,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:44:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 425 transitions. [2021-04-29 00:44:22,715 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6439393939393939 [2021-04-29 00:44:22,715 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 425 transitions. [2021-04-29 00:44:22,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 425 transitions. [2021-04-29 00:44:22,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:22,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 425 transitions. [2021-04-29 00:44:22,718 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 106.25) internal successors, (425), 4 states have internal predecessors, (425), 0 states have call successors, (0), 0 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 00:44:22,721 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 00:44:22,722 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 00:44:22,722 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 64 flow. Second operand 4 states and 425 transitions. [2021-04-29 00:44:22,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 130 flow [2021-04-29 00:44:22,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 36 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:44:22,725 INFO L241 Difference]: Finished difference. Result has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:22,725 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=39, PETRI_TRANSITIONS=30} [2021-04-29 00:44:22,726 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -41 predicate places. [2021-04-29 00:44:22,726 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:22,727 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:22,727 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:22,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:22,742 INFO L129 PetriNetUnfolder]: 26/118 cut-off events. [2021-04-29 00:44:22,743 INFO L130 PetriNetUnfolder]: For 35/42 co-relation queries the response was YES. [2021-04-29 00:44:22,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 243 conditions, 118 events. 26/118 cut-off events. For 35/42 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 565 event pairs, 3 based on Foata normal form. 1/80 useless extension candidates. Maximal degree in co-relation 232. Up to 41 conditions per place. [2021-04-29 00:44:22,746 INFO L146 LiptonReduction]: Number of co-enabled transitions 362 [2021-04-29 00:44:22,750 INFO L158 LiptonReduction]: Checked pairs total: 22 [2021-04-29 00:44:22,750 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:22,750 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 00:44:22,752 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 30 transitions, 115 flow [2021-04-29 00:44:22,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 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 00:44:22,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:22,753 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:22,753 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:44:22,754 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:22,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:22,754 INFO L82 PathProgramCache]: Analyzing trace with hash 2079225834, now seen corresponding path program 1 times [2021-04-29 00:44:22,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:22,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779946736] [2021-04-29 00:44:22,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:22,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:22,845 INFO L142 QuantifierPusher]: treesize reduction 3, result has 85.0 percent of original size [2021-04-29 00:44:22,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-29 00:44:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 00:44:22,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779946736] [2021-04-29 00:44:22,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:22,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:44:22,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273580363] [2021-04-29 00:44:22,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:22,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:22,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:22,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:22,861 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 165 [2021-04-29 00:44:22,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 30 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 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 00:44:22,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:22,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 165 [2021-04-29 00:44:22,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:22,923 INFO L129 PetriNetUnfolder]: 28/122 cut-off events. [2021-04-29 00:44:22,923 INFO L130 PetriNetUnfolder]: For 66/130 co-relation queries the response was YES. [2021-04-29 00:44:22,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 313 conditions, 122 events. 28/122 cut-off events. For 66/130 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 553 event pairs, 3 based on Foata normal form. 6/93 useless extension candidates. Maximal degree in co-relation 300. Up to 42 conditions per place. [2021-04-29 00:44:22,925 INFO L132 encePairwiseOnDemand]: 157/165 looper letters, 10 selfloop transitions, 12 changer transitions 1/40 dead transitions. [2021-04-29 00:44:22,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 40 transitions, 216 flow [2021-04-29 00:44:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:44:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:44:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 423 transitions. [2021-04-29 00:44:22,928 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6409090909090909 [2021-04-29 00:44:22,928 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 423 transitions. [2021-04-29 00:44:22,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 423 transitions. [2021-04-29 00:44:22,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:22,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 423 transitions. [2021-04-29 00:44:22,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 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 00:44:22,934 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 00:44:22,935 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 00:44:22,935 INFO L185 Difference]: Start difference. First operand has 39 places, 30 transitions, 115 flow. Second operand 4 states and 423 transitions. [2021-04-29 00:44:22,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 40 transitions, 216 flow [2021-04-29 00:44:22,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 40 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:22,938 INFO L241 Difference]: Finished difference. Result has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:22,939 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=206, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2021-04-29 00:44:22,939 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -35 predicate places. [2021-04-29 00:44:22,939 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:22,939 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:22,940 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:22,940 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:22,954 INFO L129 PetriNetUnfolder]: 25/118 cut-off events. [2021-04-29 00:44:22,954 INFO L130 PetriNetUnfolder]: For 122/136 co-relation queries the response was YES. [2021-04-29 00:44:22,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 334 conditions, 118 events. 25/118 cut-off events. For 122/136 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 575 event pairs, 3 based on Foata normal form. 2/86 useless extension candidates. Maximal degree in co-relation 318. Up to 41 conditions per place. [2021-04-29 00:44:22,957 INFO L146 LiptonReduction]: Number of co-enabled transitions 400 [2021-04-29 00:44:22,961 INFO L158 LiptonReduction]: Checked pairs total: 28 [2021-04-29 00:44:22,961 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:22,962 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23 [2021-04-29 00:44:22,963 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 206 flow [2021-04-29 00:44:22,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.25) internal successors, (409), 4 states have internal predecessors, (409), 0 states have call successors, (0), 0 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 00:44:22,964 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:22,964 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:22,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:44:22,965 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:22,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:22,965 INFO L82 PathProgramCache]: Analyzing trace with hash 27826534, now seen corresponding path program 1 times [2021-04-29 00:44:22,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:22,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81523861] [2021-04-29 00:44:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:23,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:23,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:23,079 INFO L142 QuantifierPusher]: treesize reduction 19, result has 32.1 percent of original size [2021-04-29 00:44:23,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:44:23,087 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 00:44:23,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81523861] [2021-04-29 00:44:23,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:23,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:44:23,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665424618] [2021-04-29 00:44:23,089 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:44:23,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:23,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:44:23,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:44:23,091 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:23,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 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 00:44:23,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:23,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:23,093 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:23,304 INFO L129 PetriNetUnfolder]: 600/1143 cut-off events. [2021-04-29 00:44:23,304 INFO L130 PetriNetUnfolder]: For 1096/1260 co-relation queries the response was YES. [2021-04-29 00:44:23,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2643 conditions, 1143 events. 600/1143 cut-off events. For 1096/1260 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 7834 event pairs, 220 based on Foata normal form. 52/571 useless extension candidates. Maximal degree in co-relation 2625. Up to 808 conditions per place. [2021-04-29 00:44:23,316 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 11 selfloop transitions, 14 changer transitions 15/64 dead transitions. [2021-04-29 00:44:23,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 64 transitions, 342 flow [2021-04-29 00:44:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:44:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:44:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 552 transitions. [2021-04-29 00:44:23,320 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6690909090909091 [2021-04-29 00:44:23,320 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 552 transitions. [2021-04-29 00:44:23,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 552 transitions. [2021-04-29 00:44:23,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:23,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 552 transitions. [2021-04-29 00:44:23,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.4) internal successors, (552), 5 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 00:44:23,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 00:44:23,328 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 165.0) internal successors, (990), 6 states have internal predecessors, (990), 0 states have call successors, (0), 0 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 00:44:23,328 INFO L185 Difference]: Start difference. First operand has 45 places, 36 transitions, 206 flow. Second operand 5 states and 552 transitions. [2021-04-29 00:44:23,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 64 transitions, 342 flow [2021-04-29 00:44:23,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 64 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:23,334 INFO L241 Difference]: Finished difference. Result has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:23,335 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=52, PETRI_TRANSITIONS=49} [2021-04-29 00:44:23,335 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -28 predicate places. [2021-04-29 00:44:23,335 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:23,335 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:23,336 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:23,337 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:23,431 INFO L129 PetriNetUnfolder]: 283/768 cut-off events. [2021-04-29 00:44:23,431 INFO L130 PetriNetUnfolder]: For 994/1169 co-relation queries the response was YES. [2021-04-29 00:44:23,436 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2446 conditions, 768 events. 283/768 cut-off events. For 994/1169 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 6520 event pairs, 152 based on Foata normal form. 10/366 useless extension candidates. Maximal degree in co-relation 2425. Up to 584 conditions per place. [2021-04-29 00:44:23,447 INFO L146 LiptonReduction]: Number of co-enabled transitions 606 [2021-04-29 00:44:23,454 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:23,454 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:23,455 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120 [2021-04-29 00:44:23,456 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 49 transitions, 314 flow [2021-04-29 00:44:23,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 0 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 00:44:23,457 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:23,457 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:23,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:44:23,458 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:23,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:23,458 INFO L82 PathProgramCache]: Analyzing trace with hash 634874063, now seen corresponding path program 1 times [2021-04-29 00:44:23,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:23,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58876359] [2021-04-29 00:44:23,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:23,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:23,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:23,508 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:44:23,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:44:23,515 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:44:23,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:44:23,525 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 00:44:23,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58876359] [2021-04-29 00:44:23,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:23,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:44:23,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744169434] [2021-04-29 00:44:23,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:44:23,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:23,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:44:23,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:44:23,529 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:23,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 314 flow. Second operand has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 0 states have call successors, (0), 0 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 00:44:23,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:23,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:23,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:23,777 INFO L129 PetriNetUnfolder]: 390/930 cut-off events. [2021-04-29 00:44:23,778 INFO L130 PetriNetUnfolder]: For 1789/2109 co-relation queries the response was YES. [2021-04-29 00:44:23,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3529 conditions, 930 events. 390/930 cut-off events. For 1789/2109 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 7049 event pairs, 31 based on Foata normal form. 88/529 useless extension candidates. Maximal degree in co-relation 3506. Up to 647 conditions per place. [2021-04-29 00:44:23,786 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 8 selfloop transitions, 24 changer transitions 22/77 dead transitions. [2021-04-29 00:44:23,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 568 flow [2021-04-29 00:44:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:44:23,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:44:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 769 transitions. [2021-04-29 00:44:23,790 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6658008658008658 [2021-04-29 00:44:23,790 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 769 transitions. [2021-04-29 00:44:23,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 769 transitions. [2021-04-29 00:44:23,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:23,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 769 transitions. [2021-04-29 00:44:23,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 109.85714285714286) internal successors, (769), 7 states have internal predecessors, (769), 0 states have call successors, (0), 0 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 00:44:23,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 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 00:44:23,798 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 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 00:44:23,798 INFO L185 Difference]: Start difference. First operand has 52 places, 49 transitions, 314 flow. Second operand 7 states and 769 transitions. [2021-04-29 00:44:23,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 568 flow [2021-04-29 00:44:23,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 568 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:44:23,810 INFO L241 Difference]: Finished difference. Result has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:23,810 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=449, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2021-04-29 00:44:23,811 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-04-29 00:44:23,811 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:23,811 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:23,811 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 55 transitions, 449 flow [2021-04-29 00:44:23,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 449 flow [2021-04-29 00:44:23,880 INFO L129 PetriNetUnfolder]: 190/565 cut-off events. [2021-04-29 00:44:23,881 INFO L130 PetriNetUnfolder]: For 1560/2449 co-relation queries the response was YES. [2021-04-29 00:44:23,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2545 conditions, 565 events. 190/565 cut-off events. For 1560/2449 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 4298 event pairs, 28 based on Foata normal form. 14/330 useless extension candidates. Maximal degree in co-relation 2519. Up to 421 conditions per place. [2021-04-29 00:44:23,890 INFO L146 LiptonReduction]: Number of co-enabled transitions 540 [2021-04-29 00:44:23,899 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:23,899 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:23,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-04-29 00:44:23,901 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 449 flow [2021-04-29 00:44:23,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 states have internal predecessors, (514), 0 states have call successors, (0), 0 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 00:44:23,902 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:44:23,902 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:44:23,902 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:44:23,902 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:44:23,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:44:23,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1568542352, now seen corresponding path program 1 times [2021-04-29 00:44:23,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:44:23,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042824915] [2021-04-29 00:44:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:44:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:44:23,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:23,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:23,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:44:23,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:44:23,990 INFO L142 QuantifierPusher]: treesize reduction 4, result has 50.0 percent of original size [2021-04-29 00:44:23,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 00:44:24,004 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-29 00:44:24,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 00:44:24,014 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 00:44:24,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042824915] [2021-04-29 00:44:24,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:44:24,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 00:44:24,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296713557] [2021-04-29 00:44:24,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 00:44:24,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:44:24,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 00:44:24,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-29 00:44:24,018 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 165 [2021-04-29 00:44:24,019 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 55 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 0 states have call successors, (0), 0 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 00:44:24,020 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:44:24,020 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 165 [2021-04-29 00:44:24,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:44:24,244 INFO L129 PetriNetUnfolder]: 136/481 cut-off events. [2021-04-29 00:44:24,245 INFO L130 PetriNetUnfolder]: For 1854/2286 co-relation queries the response was YES. [2021-04-29 00:44:24,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2467 conditions, 481 events. 136/481 cut-off events. For 1854/2286 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 3698 event pairs, 4 based on Foata normal form. 82/353 useless extension candidates. Maximal degree in co-relation 2450. Up to 364 conditions per place. [2021-04-29 00:44:24,249 INFO L132 encePairwiseOnDemand]: 153/165 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2021-04-29 00:44:24,249 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 61 transitions, 573 flow [2021-04-29 00:44:24,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 00:44:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 00:44:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 957 transitions. [2021-04-29 00:44:24,254 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2021-04-29 00:44:24,254 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 957 transitions. [2021-04-29 00:44:24,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 957 transitions. [2021-04-29 00:44:24,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:44:24,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 957 transitions. [2021-04-29 00:44:24,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 106.33333333333333) internal successors, (957), 9 states have internal predecessors, (957), 0 states have call successors, (0), 0 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 00:44:24,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 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 00:44:24,265 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 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 00:44:24,265 INFO L185 Difference]: Start difference. First operand has 60 places, 55 transitions, 449 flow. Second operand 9 states and 957 transitions. [2021-04-29 00:44:24,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 61 transitions, 573 flow [2021-04-29 00:44:24,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 61 transitions, 490 flow, removed 16 selfloop flow, removed 8 redundant places. [2021-04-29 00:44:24,282 INFO L241 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:24,282 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2021-04-29 00:44:24,283 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-04-29 00:44:24,283 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:44:24,283 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:24,283 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 59 places, 0 transitions, 0 flow [2021-04-29 00:44:24,284 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:44:24,284 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:44:24,284 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:44:24,285 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 00:44:24,285 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:44:24,286 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:44:24,286 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:44:24,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3 [2021-04-29 00:44:24,294 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:44:24,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 102.83333333333333) internal successors, (617), 6 states have internal predecessors, (617), 0 states have call successors, (0), 0 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 00:44:24,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 00:44:24,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:44:24 BasicIcfg [2021-04-29 00:44:24,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:44:24,305 INFO L168 Benchmark]: Toolchain (without parser) took 15174.52 ms. Allocated memory was 318.8 MB in the beginning and 474.0 MB in the end (delta: 155.2 MB). Free memory was 292.8 MB in the beginning and 206.4 MB in the end (delta: 86.4 MB). Peak memory consumption was 242.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:24,306 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 318.8 MB. Free memory is still 286.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:44:24,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 828.19 ms. Allocated memory is still 318.8 MB. Free memory was 289.5 MB in the beginning and 289.0 MB in the end (delta: 507.4 kB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:24,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 318.8 MB. Free memory was 289.0 MB in the beginning and 287.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:24,318 INFO L168 Benchmark]: Boogie Preprocessor took 30.48 ms. Allocated memory is still 318.8 MB. Free memory was 287.0 MB in the beginning and 285.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:44:24,318 INFO L168 Benchmark]: RCFGBuilder took 581.24 ms. Allocated memory is still 318.8 MB. Free memory was 285.9 MB in the beginning and 263.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:24,319 INFO L168 Benchmark]: TraceAbstraction took 13619.88 ms. Allocated memory was 318.8 MB in the beginning and 474.0 MB in the end (delta: 155.2 MB). Free memory was 262.8 MB in the beginning and 206.4 MB in the end (delta: 56.4 MB). Peak memory consumption was 213.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:44:24,325 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 318.8 MB. Free memory is still 286.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 828.19 ms. Allocated memory is still 318.8 MB. Free memory was 289.5 MB in the beginning and 289.0 MB in the end (delta: 507.4 kB). Peak memory consumption was 24.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 52.21 ms. Allocated memory is still 318.8 MB. Free memory was 289.0 MB in the beginning and 287.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 30.48 ms. Allocated memory is still 318.8 MB. Free memory was 287.0 MB in the beginning and 285.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 581.24 ms. Allocated memory is still 318.8 MB. Free memory was 285.9 MB in the beginning and 263.9 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 13619.88 ms. Allocated memory was 318.8 MB in the beginning and 474.0 MB in the end (delta: 155.2 MB). Free memory was 262.8 MB in the beginning and 206.4 MB in the end (delta: 56.4 MB). Peak memory consumption was 213.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10843.2ms, 68 PlacesBefore, 80 PlacesAfterwards, 59 TransitionsBefore, 70 TransitionsAfterwards, 864 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 91 TotalNumberOfCompositions, 6628 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1406, positive: 1204, positive conditional: 1204, positive unconditional: 0, negative: 202, negative conditional: 202, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 779, positive: 713, positive conditional: 0, positive unconditional: 713, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 779, positive: 713, positive conditional: 0, positive unconditional: 713, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 779, positive: 707, positive conditional: 0, positive unconditional: 707, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 72, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 338, negative conditional: 0, negative unconditional: 338, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1406, positive: 491, positive conditional: 491, positive unconditional: 0, negative: 136, negative conditional: 136, negative unconditional: 0, unknown: 779, unknown conditional: 779, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 760, Positive cache size: 694, Positive conditional cache size: 694, Positive unconditional cache size: 0, Negative cache size: 66, Negative conditional cache size: 66, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 62.3ms, 80 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 287 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 68, positive conditional: 68, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 3, positive unconditional: 39, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 49, positive: 42, positive conditional: 3, positive unconditional: 39, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 49, positive: 35, positive conditional: 0, positive unconditional: 35, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 7, negative conditional: 1, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 24, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 26, positive conditional: 26, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 49, unknown conditional: 49, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 809, Positive cache size: 736, Positive conditional cache size: 736, 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: 23.4ms, 39 PlacesBefore, 39 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 362 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 22 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 813, Positive cache size: 740, Positive conditional cache size: 740, 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: 21.8ms, 45 PlacesBefore, 45 PlacesAfterwards, 36 TransitionsBefore, 36 TransitionsAfterwards, 400 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 28 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 815, Positive cache size: 742, Positive conditional cache size: 742, 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: 118.7ms, 52 PlacesBefore, 52 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 606 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): 815, Positive cache size: 742, Positive conditional cache size: 742, 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: 87.8ms, 61 PlacesBefore, 60 PlacesAfterwards, 55 TransitionsBefore, 55 TransitionsAfterwards, 540 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): 815, Positive cache size: 742, Positive conditional cache size: 742, 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: 2.5ms, 59 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): 815, Positive cache size: 742, Positive conditional cache size: 742, Positive unconditional cache size: 0, Negative cache size: 73, Negative conditional cache size: 73, 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: 13.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 13468.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1153.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10977.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 47 SDtfs, 35 SDslu, 14 SDs, 0 SdLazy, 233 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 270.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 118.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=449occurred in iteration=5, InterpolantAutomatonStates: 32, 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: 24.3ms SsaConstructionTime, 231.4ms SatisfiabilityAnalysisTime, 525.2ms InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...