/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/safe022_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:19:10,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:19:10,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:19:10,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-04-29 00:19:10,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:19:10,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:19:10,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:19:10,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:19:10,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:19:10,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:19:10,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:19:10,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:19:10,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:19:10,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:19:10,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:19:10,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:19:10,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:19:10,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:19:10,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:19:10,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:19:10,513 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 00:19:10,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:19:10,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:19:10,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:19:10,566 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:19:10,566 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:19:10,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:19:10,567 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:19:10,567 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:19:10,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:19:10,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:19:10,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:19:10,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:19:10,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:19:10,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:19:10,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:19:10,571 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:19:10,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:19:10,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:19:10,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:19:10,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:19:10,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:19:10,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:19:10,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:19:10,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:19:10,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:19:10,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:19:10,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:19:10,573 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:19:10,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:19:10,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:19:10,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:19:10,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:19:11,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:19:11,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:19:11,007 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:19:11,008 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:19:11,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-04-29 00:19:11,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948b149ec/3fca900905454bb4af461c1c134af257/FLAG16a6c9075 [2021-04-29 00:19:11,830 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:19:11,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe022_tso.oepc.i [2021-04-29 00:19:11,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948b149ec/3fca900905454bb4af461c1c134af257/FLAG16a6c9075 [2021-04-29 00:19:12,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/948b149ec/3fca900905454bb4af461c1c134af257 [2021-04-29 00:19:12,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:19:12,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:19:12,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:19:12,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:19:12,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:19:12,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfafa15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12, skipping insertion in model container [2021-04-29 00:19:12,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:19:12,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:19:12,333 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/safe022_tso.oepc.i[950,963] [2021-04-29 00:19:12,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:19:12,525 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:19:12,541 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/safe022_tso.oepc.i[950,963] [2021-04-29 00:19:12,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:19:12,749 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:19:12,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12 WrapperNode [2021-04-29 00:19:12,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:19:12,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:19:12,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:19:12,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:19:12,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:19:12,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:19:12,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:19:12,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:19:12,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (1/1) ... [2021-04-29 00:19:12,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:19:12,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:19:12,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:19:12,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:19:12,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (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 00:19:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:19:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:19:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:19:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:19:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:19:12,923 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:19:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:19:12,924 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:19:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:19:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:19:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:19:12,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:19:12,927 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 00:19:13,306 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:19:13,306 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:19:13,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:19:13 BoogieIcfgContainer [2021-04-29 00:19:13,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:19:13,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:19:13,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:19:13,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:19:13,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:19:12" (1/3) ... [2021-04-29 00:19:13,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4f66c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:19:13, skipping insertion in model container [2021-04-29 00:19:13,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:19:12" (2/3) ... [2021-04-29 00:19:13,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4f66c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:19:13, skipping insertion in model container [2021-04-29 00:19:13,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:19:13" (3/3) ... [2021-04-29 00:19:13,317 INFO L111 eAbstractionObserver]: Analyzing ICFG safe022_tso.oepc.i [2021-04-29 00:19:13,324 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:19:13,329 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:19:13,330 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:19:13,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,364 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,364 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,367 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,368 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,373 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,373 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,374 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,379 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,380 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,380 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:19:13,382 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:19:13,410 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:19:13,453 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:19:13,454 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:19:13,454 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:19:13,454 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:19:13,454 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:19:13,454 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:19:13,455 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:19:13,455 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:19:13,471 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:19:13,534 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-29 00:19:13,534 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:13,542 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 59 events. 2/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:19:13,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-29 00:19:13,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:13,563 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:13,579 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:13,584 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:13,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-29 00:19:13,623 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-29 00:19:13,623 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:13,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 49 events. 1/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 30 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:19:13,627 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:19:18,198 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:19:18,344 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:19:18,507 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:19:18,951 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:19,966 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:20,127 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:20,299 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:20,474 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:20,664 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:19:20,842 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:19:21,015 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:21,164 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:19:22,385 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:22,600 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:22,800 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:19:23,012 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:19:23,195 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:23,373 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:19:23,534 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:23,691 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:23,966 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:19:24,264 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-29 00:19:24,548 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:19:24,844 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-29 00:19:25,082 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:25,301 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:25,517 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:25,733 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-29 00:19:25,909 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:26,065 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:19:26,413 INFO L158 LiptonReduction]: Checked pairs total: 4326 [2021-04-29 00:19:26,413 INFO L160 LiptonReduction]: Total number of compositions: 110 [2021-04-29 00:19:26,417 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12855 [2021-04-29 00:19:26,436 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-29 00:19:26,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:26,437 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:26,438 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:19:26,438 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:26,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:26,444 INFO L82 PathProgramCache]: Analyzing trace with hash -405816546, now seen corresponding path program 1 times [2021-04-29 00:19:26,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:26,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496014214] [2021-04-29 00:19:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:26,715 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:19:26,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:19:26,746 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 00:19:26,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496014214] [2021-04-29 00:19:26,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:26,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:19:26,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990204311] [2021-04-29 00:19:26,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:19:26,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:26,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:19:26,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:19:26,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 171 [2021-04-29 00:19:26,790 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 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 00:19:26,790 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:26,790 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 171 [2021-04-29 00:19:26,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:26,910 INFO L129 PetriNetUnfolder]: 12/105 cut-off events. [2021-04-29 00:19:26,910 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:26,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 105 events. 12/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 539 event pairs, 2 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 109. Up to 29 conditions per place. [2021-04-29 00:19:26,913 INFO L132 encePairwiseOnDemand]: 154/171 looper letters, 2 selfloop transitions, 2 changer transitions 54/71 dead transitions. [2021-04-29 00:19:26,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 71 transitions, 204 flow [2021-04-29 00:19:26,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:19:26,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:19:26,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2021-04-29 00:19:26,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2021-04-29 00:19:26,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 333 transitions. [2021-04-29 00:19:26,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 333 transitions. [2021-04-29 00:19:26,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:26,947 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 333 transitions. [2021-04-29 00:19:26,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 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 00:19:26,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 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 00:19:26,967 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 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 00:19:26,970 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 3 states and 333 transitions. [2021-04-29 00:19:26,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 71 transitions, 204 flow [2021-04-29 00:19:26,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 71 transitions, 202 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:26,976 INFO L241 Difference]: Finished difference. Result has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:26,978 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=74, PETRI_TRANSITIONS=17} [2021-04-29 00:19:26,979 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-04-29 00:19:26,979 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:26,979 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:26,980 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 17 transitions, 46 flow [2021-04-29 00:19:26,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 25 places, 17 transitions, 46 flow [2021-04-29 00:19:26,985 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2021-04-29 00:19:26,985 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:26,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 17 events. 0/17 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 27 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:19:26,986 INFO L146 LiptonReduction]: Number of co-enabled transitions 126 [2021-04-29 00:19:27,040 INFO L158 LiptonReduction]: Checked pairs total: 131 [2021-04-29 00:19:27,040 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:19:27,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 61 [2021-04-29 00:19:27,043 INFO L480 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 46 flow [2021-04-29 00:19:27,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 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 00:19:27,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:27,044 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:27,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:19:27,044 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:27,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:27,055 INFO L82 PathProgramCache]: Analyzing trace with hash 304587534, now seen corresponding path program 1 times [2021-04-29 00:19:27,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:27,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442816871] [2021-04-29 00:19:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:27,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:27,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:27,164 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 00:19:27,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442816871] [2021-04-29 00:19:27,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:27,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:19:27,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406137641] [2021-04-29 00:19:27,166 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:27,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:27,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:27,169 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-29 00:19:27,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 46 flow. Second operand has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 00:19:27,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:27,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-29 00:19:27,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:27,198 INFO L129 PetriNetUnfolder]: 0/26 cut-off events. [2021-04-29 00:19:27,198 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 00:19:27,198 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 26 events. 0/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 61 event pairs, 0 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 00:19:27,199 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 1 selfloop transitions, 3 changer transitions 2/18 dead transitions. [2021-04-29 00:19:27,199 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 18 transitions, 61 flow [2021-04-29 00:19:27,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:19:27,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:19:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 407 transitions. [2021-04-29 00:19:27,201 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5950292397660819 [2021-04-29 00:19:27,202 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 407 transitions. [2021-04-29 00:19:27,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 407 transitions. [2021-04-29 00:19:27,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:27,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 407 transitions. [2021-04-29 00:19:27,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.75) internal successors, (407), 4 states have internal predecessors, (407), 0 states have call successors, (0), 0 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 00:19:27,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 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 00:19:27,233 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 0 states have call successors, (0), 0 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 00:19:27,234 INFO L185 Difference]: Start difference. First operand has 25 places, 17 transitions, 46 flow. Second operand 4 states and 407 transitions. [2021-04-29 00:19:27,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 18 transitions, 61 flow [2021-04-29 00:19:27,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 18 transitions, 55 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:27,235 INFO L241 Difference]: Finished difference. Result has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:27,235 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2021-04-29 00:19:27,236 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -45 predicate places. [2021-04-29 00:19:27,236 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:27,236 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:27,238 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 16 transitions, 54 flow [2021-04-29 00:19:27,238 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 16 transitions, 54 flow [2021-04-29 00:19:27,241 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-29 00:19:27,242 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 00:19:27,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 16 events. 0/16 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 23 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-04-29 00:19:27,244 INFO L146 LiptonReduction]: Number of co-enabled transitions 84 [2021-04-29 00:19:27,279 INFO L158 LiptonReduction]: Checked pairs total: 83 [2021-04-29 00:19:27,279 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 00:19:27,280 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 44 [2021-04-29 00:19:27,287 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 16 transitions, 54 flow [2021-04-29 00:19:27,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.75) internal successors, (403), 4 states have internal predecessors, (403), 0 states have call successors, (0), 0 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 00:19:27,288 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:27,288 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:27,288 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:19:27,289 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:27,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:27,289 INFO L82 PathProgramCache]: Analyzing trace with hash 650739729, now seen corresponding path program 1 times [2021-04-29 00:19:27,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:27,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671219994] [2021-04-29 00:19:27,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:27,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:27,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:19:27,382 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 00:19:27,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671219994] [2021-04-29 00:19:27,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:27,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:19:27,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181837820] [2021-04-29 00:19:27,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:27,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:27,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:27,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:27,386 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 172 [2021-04-29 00:19:27,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 16 transitions, 54 flow. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 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 00:19:27,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:27,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 172 [2021-04-29 00:19:27,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:27,464 INFO L129 PetriNetUnfolder]: 54/123 cut-off events. [2021-04-29 00:19:27,464 INFO L130 PetriNetUnfolder]: For 143/147 co-relation queries the response was YES. [2021-04-29 00:19:27,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 123 events. 54/123 cut-off events. For 143/147 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 562 event pairs, 18 based on Foata normal form. 18/78 useless extension candidates. Maximal degree in co-relation 288. Up to 91 conditions per place. [2021-04-29 00:19:27,466 INFO L132 encePairwiseOnDemand]: 163/172 looper letters, 8 selfloop transitions, 7 changer transitions 14/35 dead transitions. [2021-04-29 00:19:27,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 148 flow [2021-04-29 00:19:27,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:19:27,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:19:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 515 transitions. [2021-04-29 00:19:27,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5988372093023255 [2021-04-29 00:19:27,469 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 515 transitions. [2021-04-29 00:19:27,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 515 transitions. [2021-04-29 00:19:27,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:27,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 515 transitions. [2021-04-29 00:19:27,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.0) internal successors, (515), 5 states have internal predecessors, (515), 0 states have call successors, (0), 0 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 00:19:27,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 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 00:19:27,474 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 0 states have call successors, (0), 0 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 00:19:27,475 INFO L185 Difference]: Start difference. First operand has 27 places, 16 transitions, 54 flow. Second operand 5 states and 515 transitions. [2021-04-29 00:19:27,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 148 flow [2021-04-29 00:19:27,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 136 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 00:19:27,477 INFO L241 Difference]: Finished difference. Result has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:27,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2021-04-29 00:19:27,477 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -43 predicate places. [2021-04-29 00:19:27,477 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:27,478 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:27,478 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 21 transitions, 103 flow [2021-04-29 00:19:27,478 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 21 transitions, 103 flow [2021-04-29 00:19:27,490 INFO L129 PetriNetUnfolder]: 45/97 cut-off events. [2021-04-29 00:19:27,490 INFO L130 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2021-04-29 00:19:27,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 97 events. 45/97 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 388 event pairs, 18 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 279. Up to 76 conditions per place. [2021-04-29 00:19:27,492 INFO L146 LiptonReduction]: Number of co-enabled transitions 34 [2021-04-29 00:19:27,636 INFO L158 LiptonReduction]: Checked pairs total: 54 [2021-04-29 00:19:27,636 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-29 00:19:27,636 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-04-29 00:19:27,638 INFO L480 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 109 flow [2021-04-29 00:19:27,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 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 00:19:27,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:27,639 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:27,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:19:27,639 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:27,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:27,639 INFO L82 PathProgramCache]: Analyzing trace with hash 726182073, now seen corresponding path program 1 times [2021-04-29 00:19:27,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:27,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291945968] [2021-04-29 00:19:27,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:27,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:27,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:27,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:19:27,700 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 00:19:27,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291945968] [2021-04-29 00:19:27,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:27,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:19:27,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691388466] [2021-04-29 00:19:27,701 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:19:27,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:27,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:19:27,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:19:27,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 175 [2021-04-29 00:19:27,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 109 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 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 00:19:27,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:27,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 175 [2021-04-29 00:19:27,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:27,784 INFO L129 PetriNetUnfolder]: 18/88 cut-off events. [2021-04-29 00:19:27,785 INFO L130 PetriNetUnfolder]: For 120/138 co-relation queries the response was YES. [2021-04-29 00:19:27,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 88 events. 18/88 cut-off events. For 120/138 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 422 event pairs, 0 based on Foata normal form. 22/73 useless extension candidates. Maximal degree in co-relation 305. Up to 64 conditions per place. [2021-04-29 00:19:27,786 INFO L132 encePairwiseOnDemand]: 163/175 looper letters, 2 selfloop transitions, 13 changer transitions 8/29 dead transitions. [2021-04-29 00:19:27,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 193 flow [2021-04-29 00:19:27,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 00:19:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 00:19:27,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 606 transitions. [2021-04-29 00:19:27,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5771428571428572 [2021-04-29 00:19:27,789 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 606 transitions. [2021-04-29 00:19:27,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 606 transitions. [2021-04-29 00:19:27,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:27,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 606 transitions. [2021-04-29 00:19:27,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.0) internal successors, (606), 6 states have internal predecessors, (606), 0 states have call successors, (0), 0 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 00:19:27,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 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 00:19:27,795 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 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 00:19:27,796 INFO L185 Difference]: Start difference. First operand has 28 places, 22 transitions, 109 flow. Second operand 6 states and 606 transitions. [2021-04-29 00:19:27,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 193 flow [2021-04-29 00:19:27,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 29 transitions, 160 flow, removed 13 selfloop flow, removed 2 redundant places. [2021-04-29 00:19:27,799 INFO L241 Difference]: Finished difference. Result has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:27,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=129, PETRI_PLACES=34, PETRI_TRANSITIONS=21} [2021-04-29 00:19:27,799 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -39 predicate places. [2021-04-29 00:19:27,799 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:27,800 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:27,800 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 21 transitions, 129 flow [2021-04-29 00:19:27,800 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 129 flow [2021-04-29 00:19:27,807 INFO L129 PetriNetUnfolder]: 9/55 cut-off events. [2021-04-29 00:19:27,807 INFO L130 PetriNetUnfolder]: For 63/66 co-relation queries the response was YES. [2021-04-29 00:19:27,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 55 events. 9/55 cut-off events. For 63/66 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 197 event pairs, 0 based on Foata normal form. 1/37 useless extension candidates. Maximal degree in co-relation 183. Up to 34 conditions per place. [2021-04-29 00:19:27,808 INFO L146 LiptonReduction]: Number of co-enabled transitions 16 [2021-04-29 00:19:27,970 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:19:27,970 INFO L160 LiptonReduction]: Total number of compositions: 6 [2021-04-29 00:19:27,970 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-04-29 00:19:27,971 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 129 flow [2021-04-29 00:19:27,972 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 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 00:19:27,972 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:19:27,972 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:19:27,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:19:27,973 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:19:27,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:19:27,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1104068109, now seen corresponding path program 1 times [2021-04-29 00:19:27,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:19:27,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981130472] [2021-04-29 00:19:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:19:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:19:28,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:28,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:19:28,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:28,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:28,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:19:28,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:19:28,024 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 00:19:28,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981130472] [2021-04-29 00:19:28,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:19:28,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:19:28,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30869219] [2021-04-29 00:19:28,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:19:28,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:19:28,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:19:28,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:19:28,028 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 181 [2021-04-29 00:19:28,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 00:19:28,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:19:28,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 181 [2021-04-29 00:19:28,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:19:28,059 INFO L129 PetriNetUnfolder]: 9/46 cut-off events. [2021-04-29 00:19:28,059 INFO L130 PetriNetUnfolder]: For 111/114 co-relation queries the response was YES. [2021-04-29 00:19:28,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 46 events. 9/46 cut-off events. For 111/114 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 173 event pairs, 0 based on Foata normal form. 10/37 useless extension candidates. Maximal degree in co-relation 165. Up to 34 conditions per place. [2021-04-29 00:19:28,060 INFO L132 encePairwiseOnDemand]: 169/181 looper letters, 0 selfloop transitions, 0 changer transitions 20/20 dead transitions. [2021-04-29 00:19:28,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 20 transitions, 143 flow [2021-04-29 00:19:28,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:19:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:19:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2021-04-29 00:19:28,062 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091160220994475 [2021-04-29 00:19:28,062 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 441 transitions. [2021-04-29 00:19:28,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 441 transitions. [2021-04-29 00:19:28,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:19:28,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 441 transitions. [2021-04-29 00:19:28,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 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 00:19:28,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 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 00:19:28,067 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 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 00:19:28,067 INFO L185 Difference]: Start difference. First operand has 31 places, 21 transitions, 129 flow. Second operand 4 states and 441 transitions. [2021-04-29 00:19:28,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 20 transitions, 143 flow [2021-04-29 00:19:28,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 20 transitions, 115 flow, removed 6 selfloop flow, removed 3 redundant places. [2021-04-29 00:19:28,068 INFO L241 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:28,069 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=181, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2021-04-29 00:19:28,069 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -43 predicate places. [2021-04-29 00:19:28,069 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:19:28,069 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:28,070 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 0 transitions, 0 flow [2021-04-29 00:19:28,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:19:28,070 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:19:28,070 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:19:28,070 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 00:19:28,070 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:19:28,070 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:19:28,071 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:19:28,071 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:19:28,072 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:19:28,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 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 00:19:28,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 00:19:28,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:19:28 BasicIcfg [2021-04-29 00:19:28,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:19:28,078 INFO L168 Benchmark]: Toolchain (without parser) took 16018.64 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 276.0 MB in the beginning and 293.3 MB in the end (delta: -17.3 MB). Peak memory consumption was 127.6 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:28,079 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:19:28,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.73 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 274.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:28,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 273.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:19:28,080 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:28,081 INFO L168 Benchmark]: RCFGBuilder took 486.46 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 249.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:28,082 INFO L168 Benchmark]: TraceAbstraction took 14766.94 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 249.4 MB in the beginning and 293.3 MB in the end (delta: -43.9 MB). Peak memory consumption was 98.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:19:28,084 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 302.0 MB. Free memory is still 270.3 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 636.73 ms. Allocated memory is still 302.0 MB. Free memory was 272.7 MB in the beginning and 274.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 302.0 MB. Free memory was 274.6 MB in the beginning and 273.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.47 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 271.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 486.46 ms. Allocated memory is still 302.0 MB. Free memory was 271.5 MB in the beginning and 249.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14766.94 ms. Allocated memory was 302.0 MB in the beginning and 444.6 MB in the end (delta: 142.6 MB). Free memory was 249.4 MB in the beginning and 293.3 MB in the end (delta: -43.9 MB). Peak memory consumption was 98.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12828.6ms, 55 PlacesBefore, 73 PlacesAfterwards, 49 TransitionsBefore, 66 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 8 FixpointIterations, 69 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 110 TotalNumberOfCompositions, 4326 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1656, positive: 1468, positive conditional: 1468, positive unconditional: 0, negative: 188, negative conditional: 188, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 623, positive: 581, positive conditional: 0, positive unconditional: 581, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 623, positive: 581, positive conditional: 0, positive unconditional: 581, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 623, positive: 576, positive conditional: 0, positive unconditional: 576, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 257, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 227, negative conditional: 0, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1656, positive: 887, positive conditional: 887, positive unconditional: 0, negative: 146, negative conditional: 146, negative unconditional: 0, unknown: 623, unknown conditional: 623, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 614, Positive cache size: 572, Positive conditional cache size: 572, Positive unconditional cache size: 0, Negative cache size: 42, Negative conditional cache size: 42, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 60.1ms, 74 PlacesBefore, 25 PlacesAfterwards, 17 TransitionsBefore, 17 TransitionsAfterwards, 126 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 131 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 26, positive: 20, positive conditional: 4, positive unconditional: 16, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 6, negative conditional: 2, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 47, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 27, negative conditional: 9, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 640, Positive cache size: 592, Positive conditional cache size: 592, Positive unconditional cache size: 0, Negative cache size: 48, Negative conditional cache size: 48, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 41.7ms, 28 PlacesBefore, 27 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 83 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 9, positive conditional: 9, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 6, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 646, Positive cache size: 597, Positive conditional cache size: 597, Positive unconditional cache size: 0, Negative cache size: 49, Negative conditional cache size: 49, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158.2ms, 30 PlacesBefore, 28 PlacesAfterwards, 21 TransitionsBefore, 22 TransitionsAfterwards, 34 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 54 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 12, positive unconditional: 1, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.1ms, 34 PlacesBefore, 31 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 16 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 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): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 30 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): 660, Positive cache size: 610, Positive conditional cache size: 610, Positive unconditional cache size: 0, Negative cache size: 50, Negative conditional cache size: 50, 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 3 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 11.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14627.4ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 507.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12969.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 37 SDtfs, 21 SDslu, 13 SDs, 0 SdLazy, 124 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 148.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 77.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.2ms SsaConstructionTime, 160.7ms SatisfiabilityAnalysisTime, 297.1ms InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...