/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/safe033_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 00:46:16,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 00:46:16,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 00:46:16,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 00:46:16,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 00:46:16,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 00:46:16,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 00:46:16,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 00:46:16,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 00:46:16,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 00:46:16,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 00:46:16,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 00:46:16,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 00:46:16,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 00:46:16,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 00:46:16,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 00:46:16,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 00:46:16,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 00:46:16,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 00:46:16,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 00:46:16,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 00:46:16,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 00:46:16,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 00:46:16,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 00:46:16,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 00:46:16,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 00:46:16,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 00:46:16,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 00:46:16,635 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 00:46:16,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 00:46:16,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 00:46:16,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 00:46:16,707 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 00:46:16,708 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 00:46:16,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 00:46:16,708 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 00:46:16,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 00:46:16,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 00:46:16,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 00:46:16,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 00:46:16,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 00:46:16,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 00:46:16,712 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 00:46:16,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 00:46:16,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 00:46:16,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 00:46:16,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 00:46:16,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 00:46:16,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 00:46:16,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 00:46:16,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 00:46:16,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 00:46:16,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 00:46:16,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 00:46:16,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 00:46:16,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 00:46:16,717 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 00:46:16,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 00:46:16,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 00:46:16,718 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 00:46:17,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 00:46:17,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 00:46:17,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 00:46:17,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 00:46:17,273 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 00:46:17,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-04-29 00:46:17,372 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b0ee631/8e763bee62854e9a96a84ac9e24e7d25/FLAGfd5438099 [2021-04-29 00:46:18,249 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 00:46:18,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.oepc.i [2021-04-29 00:46:18,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b0ee631/8e763bee62854e9a96a84ac9e24e7d25/FLAGfd5438099 [2021-04-29 00:46:18,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4b0ee631/8e763bee62854e9a96a84ac9e24e7d25 [2021-04-29 00:46:18,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 00:46:18,522 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 00:46:18,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 00:46:18,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 00:46:18,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 00:46:18,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:46:18" (1/1) ... [2021-04-29 00:46:18,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e19018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:18, skipping insertion in model container [2021-04-29 00:46:18,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 12:46:18" (1/1) ... [2021-04-29 00:46:18,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 00:46:18,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 00:46:18,929 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/safe033_tso.oepc.i[950,963] [2021-04-29 00:46:19,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:46:19,217 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 00:46:19,233 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/safe033_tso.oepc.i[950,963] [2021-04-29 00:46:19,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 00:46:19,408 INFO L208 MainTranslator]: Completed translation [2021-04-29 00:46:19,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19 WrapperNode [2021-04-29 00:46:19,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 00:46:19,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 00:46:19,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 00:46:19,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 00:46:19,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,447 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 00:46:19,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 00:46:19,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 00:46:19,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 00:46:19,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (1/1) ... [2021-04-29 00:46:19,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 00:46:19,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 00:46:19,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 00:46:19,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 00:46:19,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (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 00:46:19,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 00:46:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 00:46:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 00:46:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 00:46:19,651 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-29 00:46:19,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-29 00:46:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-29 00:46:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-29 00:46:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 00:46:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 00:46:19,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 00:46:19,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 00:46:19,655 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 00:46:20,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 00:46:20,083 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-29 00:46:20,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:46:20 BoogieIcfgContainer [2021-04-29 00:46:20,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 00:46:20,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 00:46:20,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 00:46:20,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 00:46:20,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 12:46:18" (1/3) ... [2021-04-29 00:46:20,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4825c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:46:20, skipping insertion in model container [2021-04-29 00:46:20,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 12:46:19" (2/3) ... [2021-04-29 00:46:20,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4825c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 12:46:20, skipping insertion in model container [2021-04-29 00:46:20,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 12:46:20" (3/3) ... [2021-04-29 00:46:20,099 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.oepc.i [2021-04-29 00:46:20,109 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 00:46:20,117 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 00:46:20,118 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 00:46:20,153 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,154 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,154 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,154 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,155 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,155 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,156 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,157 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,157 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,158 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,158 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,158 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,159 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,159 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,160 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,163 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,164 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,164 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 00:46:20,175 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-29 00:46:20,209 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-29 00:46:20,243 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 00:46:20,243 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 00:46:20,244 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 00:46:20,244 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 00:46:20,244 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 00:46:20,244 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 00:46:20,244 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 00:46:20,244 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 00:46:20,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 60 transitions, 130 flow [2021-04-29 00:46:20,316 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-29 00:46:20,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:20,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 58 events. 2/58 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. 0/55 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2021-04-29 00:46:20,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 60 transitions, 130 flow [2021-04-29 00:46:20,327 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:20,330 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:20,351 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:20,357 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:20,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 48 transitions, 102 flow [2021-04-29 00:46:20,392 INFO L129 PetriNetUnfolder]: 1/48 cut-off events. [2021-04-29 00:46:20,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:20,397 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 48 events. 1/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-04-29 00:46:20,404 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 00:46:25,254 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:46:25,420 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:46:25,597 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:46:25,797 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-04-29 00:46:25,959 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:46:26,273 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:46:26,434 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:46:26,592 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:46:26,756 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-04-29 00:46:28,017 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:46:28,217 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-29 00:46:28,702 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:46:28,897 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-29 00:46:29,077 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:46:29,265 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2021-04-29 00:46:29,495 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:29,727 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:29,906 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:46:30,052 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2021-04-29 00:46:30,290 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:46:30,576 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2021-04-29 00:46:30,827 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:31,043 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:31,330 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:46:31,666 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2021-04-29 00:46:31,913 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:32,125 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:32,343 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:32,559 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-29 00:46:32,663 INFO L158 LiptonReduction]: Checked pairs total: 3678 [2021-04-29 00:46:32,664 INFO L160 LiptonReduction]: Total number of compositions: 97 [2021-04-29 00:46:32,669 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12341 [2021-04-29 00:46:32,692 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2021-04-29 00:46:32,692 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:32,693 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:32,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-29 00:46:32,694 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:32,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:32,703 INFO L82 PathProgramCache]: Analyzing trace with hash -751304854, now seen corresponding path program 1 times [2021-04-29 00:46:32,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:32,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831517179] [2021-04-29 00:46:32,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:33,029 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-29 00:46:33,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-29 00:46:33,047 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 00:46:33,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831517179] [2021-04-29 00:46:33,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:33,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-29 00:46:33,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003647300] [2021-04-29 00:46:33,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 00:46:33,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 00:46:33,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 00:46:33,089 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 157 [2021-04-29 00:46:33,094 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 00:46:33,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:33,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 157 [2021-04-29 00:46:33,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:33,294 INFO L129 PetriNetUnfolder]: 47/229 cut-off events. [2021-04-29 00:46:33,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:33,296 INFO L84 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 229 events. 47/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 1587 event pairs, 19 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 311. Up to 70 conditions per place. [2021-04-29 00:46:33,299 INFO L132 encePairwiseOnDemand]: 146/157 looper letters, 3 selfloop transitions, 4 changer transitions 38/68 dead transitions. [2021-04-29 00:46:33,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 68 transitions, 198 flow [2021-04-29 00:46:33,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 00:46:33,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 00:46:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2021-04-29 00:46:33,328 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6942675159235668 [2021-04-29 00:46:33,329 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2021-04-29 00:46:33,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2021-04-29 00:46:33,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:33,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2021-04-29 00:46:33,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 00:46:33,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 00:46:33,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 00:46:33,371 INFO L185 Difference]: Start difference. First operand has 68 places, 61 transitions, 128 flow. Second operand 3 states and 327 transitions. [2021-04-29 00:46:33,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 68 transitions, 198 flow [2021-04-29 00:46:33,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:46:33,380 INFO L241 Difference]: Finished difference. Result has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:33,382 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=86, PETRI_PLACES=70, PETRI_TRANSITIONS=30} [2021-04-29 00:46:33,384 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, 2 predicate places. [2021-04-29 00:46:33,384 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:33,384 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:33,386 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 30 transitions, 86 flow [2021-04-29 00:46:33,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 86 flow [2021-04-29 00:46:33,403 INFO L129 PetriNetUnfolder]: 4/62 cut-off events. [2021-04-29 00:46:33,403 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-29 00:46:33,405 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 62 events. 4/62 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 303 event pairs, 2 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 87. Up to 13 conditions per place. [2021-04-29 00:46:33,407 INFO L146 LiptonReduction]: Number of co-enabled transitions 410 [2021-04-29 00:46:33,418 INFO L158 LiptonReduction]: Checked pairs total: 49 [2021-04-29 00:46:33,418 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:33,418 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-04-29 00:46:33,422 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 86 flow [2021-04-29 00:46:33,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 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 00:46:33,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:33,424 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:33,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 00:46:33,424 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:33,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:33,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1835900803, now seen corresponding path program 1 times [2021-04-29 00:46:33,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:33,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180441875] [2021-04-29 00:46:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:33,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:33,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:33,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:33,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:46:33,596 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 00:46:33,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180441875] [2021-04-29 00:46:33,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:33,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 00:46:33,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669987420] [2021-04-29 00:46:33,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:46:33,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:33,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:46:33,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:46:33,602 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 157 [2021-04-29 00:46:33,603 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 86 flow. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 00:46:33,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:33,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 157 [2021-04-29 00:46:33,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:33,845 INFO L129 PetriNetUnfolder]: 592/1275 cut-off events. [2021-04-29 00:46:33,846 INFO L130 PetriNetUnfolder]: For 39/60 co-relation queries the response was YES. [2021-04-29 00:46:33,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2583 conditions, 1275 events. 592/1275 cut-off events. For 39/60 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 11010 event pairs, 174 based on Foata normal form. 24/314 useless extension candidates. Maximal degree in co-relation 2572. Up to 805 conditions per place. [2021-04-29 00:46:33,854 INFO L132 encePairwiseOnDemand]: 142/157 looper letters, 18 selfloop transitions, 19 changer transitions 9/57 dead transitions. [2021-04-29 00:46:33,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 57 transitions, 232 flow [2021-04-29 00:46:33,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 00:46:33,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 00:46:33,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2021-04-29 00:46:33,858 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6229299363057325 [2021-04-29 00:46:33,859 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2021-04-29 00:46:33,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2021-04-29 00:46:33,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:33,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2021-04-29 00:46:33,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 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 00:46:33,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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 00:46:33,867 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 157.0) internal successors, (942), 6 states have internal predecessors, (942), 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 00:46:33,867 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 86 flow. Second operand 5 states and 489 transitions. [2021-04-29 00:46:33,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 57 transitions, 232 flow [2021-04-29 00:46:33,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 57 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 00:46:33,871 INFO L241 Difference]: Finished difference. Result has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:33,872 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=220, PETRI_PLACES=42, PETRI_TRANSITIONS=47} [2021-04-29 00:46:33,873 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -26 predicate places. [2021-04-29 00:46:33,873 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:33,873 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:33,874 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:33,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:33,985 INFO L129 PetriNetUnfolder]: 106/714 cut-off events. [2021-04-29 00:46:33,985 INFO L130 PetriNetUnfolder]: For 226/236 co-relation queries the response was YES. [2021-04-29 00:46:33,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 714 events. 106/714 cut-off events. For 226/236 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 8279 event pairs, 63 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 1890. Up to 546 conditions per place. [2021-04-29 00:46:33,996 INFO L146 LiptonReduction]: Number of co-enabled transitions 460 [2021-04-29 00:46:34,004 INFO L158 LiptonReduction]: Checked pairs total: 52 [2021-04-29 00:46:34,005 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:34,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 132 [2021-04-29 00:46:34,007 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 47 transitions, 220 flow [2021-04-29 00:46:34,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 4 states have internal predecessors, (359), 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 00:46:34,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:34,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:34,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 00:46:34,008 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:34,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:34,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1068108528, now seen corresponding path program 1 times [2021-04-29 00:46:34,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:34,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454021507] [2021-04-29 00:46:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:34,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:34,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:34,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 00:46:34,096 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 00:46:34,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454021507] [2021-04-29 00:46:34,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:34,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:46:34,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524409029] [2021-04-29 00:46:34,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 00:46:34,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:34,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 00:46:34,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-29 00:46:34,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 157 [2021-04-29 00:46:34,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 47 transitions, 220 flow. Second operand has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 00:46:34,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:34,104 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 157 [2021-04-29 00:46:34,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:34,384 INFO L129 PetriNetUnfolder]: 223/936 cut-off events. [2021-04-29 00:46:34,384 INFO L130 PetriNetUnfolder]: For 425/902 co-relation queries the response was YES. [2021-04-29 00:46:34,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3200 conditions, 936 events. 223/936 cut-off events. For 425/902 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 10601 event pairs, 0 based on Foata normal form. 37/321 useless extension candidates. Maximal degree in co-relation 3186. Up to 612 conditions per place. [2021-04-29 00:46:34,390 INFO L132 encePairwiseOnDemand]: 142/157 looper letters, 4 selfloop transitions, 32 changer transitions 17/63 dead transitions. [2021-04-29 00:46:34,391 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 391 flow [2021-04-29 00:46:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 00:46:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 00:46:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 670 transitions. [2021-04-29 00:46:34,395 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6096451319381255 [2021-04-29 00:46:34,395 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 670 transitions. [2021-04-29 00:46:34,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 670 transitions. [2021-04-29 00:46:34,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:34,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 670 transitions. [2021-04-29 00:46:34,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.71428571428571) internal successors, (670), 7 states have internal predecessors, (670), 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 00:46:34,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 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 00:46:34,405 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 157.0) internal successors, (1256), 8 states have internal predecessors, (1256), 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 00:46:34,405 INFO L185 Difference]: Start difference. First operand has 42 places, 47 transitions, 220 flow. Second operand 7 states and 670 transitions. [2021-04-29 00:46:34,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 391 flow [2021-04-29 00:46:34,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 63 transitions, 391 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 00:46:34,413 INFO L241 Difference]: Finished difference. Result has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:34,413 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=315, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2021-04-29 00:46:34,413 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -17 predicate places. [2021-04-29 00:46:34,414 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:34,414 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:34,415 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 45 transitions, 315 flow [2021-04-29 00:46:34,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 45 transitions, 315 flow [2021-04-29 00:46:34,453 INFO L129 PetriNetUnfolder]: 28/293 cut-off events. [2021-04-29 00:46:34,453 INFO L130 PetriNetUnfolder]: For 658/845 co-relation queries the response was YES. [2021-04-29 00:46:34,455 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 293 events. 28/293 cut-off events. For 658/845 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 2839 event pairs, 0 based on Foata normal form. 2/91 useless extension candidates. Maximal degree in co-relation 1153. Up to 192 conditions per place. [2021-04-29 00:46:34,459 INFO L146 LiptonReduction]: Number of co-enabled transitions 320 [2021-04-29 00:46:34,468 INFO L158 LiptonReduction]: Checked pairs total: 46 [2021-04-29 00:46:34,468 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:34,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-04-29 00:46:34,470 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 315 flow [2021-04-29 00:46:34,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 89.8) internal successors, (449), 5 states have internal predecessors, (449), 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 00:46:34,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 00:46:34,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 00:46:34,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 00:46:34,472 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 00:46:34,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 00:46:34,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1655166540, now seen corresponding path program 1 times [2021-04-29 00:46:34,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 00:46:34,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898123187] [2021-04-29 00:46:34,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 00:46:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 00:46:34,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 00:46:34,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:34,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 00:46:34,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 00:46:34,536 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 00:46:34,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898123187] [2021-04-29 00:46:34,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 00:46:34,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 00:46:34,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846113840] [2021-04-29 00:46:34,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-29 00:46:34,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 00:46:34,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-29 00:46:34,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-29 00:46:34,541 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 157 [2021-04-29 00:46:34,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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 00:46:34,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 00:46:34,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 157 [2021-04-29 00:46:34,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 00:46:34,608 INFO L129 PetriNetUnfolder]: 40/392 cut-off events. [2021-04-29 00:46:34,608 INFO L130 PetriNetUnfolder]: For 929/1184 co-relation queries the response was YES. [2021-04-29 00:46:34,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 392 events. 40/392 cut-off events. For 929/1184 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 4190 event pairs, 0 based on Foata normal form. 14/124 useless extension candidates. Maximal degree in co-relation 1538. Up to 264 conditions per place. [2021-04-29 00:46:34,612 INFO L132 encePairwiseOnDemand]: 154/157 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2021-04-29 00:46:34,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 45 transitions, 317 flow [2021-04-29 00:46:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-29 00:46:34,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-29 00:46:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2021-04-29 00:46:34,615 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6385350318471338 [2021-04-29 00:46:34,615 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2021-04-29 00:46:34,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2021-04-29 00:46:34,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 00:46:34,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2021-04-29 00:46:34,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 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 00:46:34,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 00:46:34,621 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 157.0) internal successors, (785), 5 states have internal predecessors, (785), 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 00:46:34,621 INFO L185 Difference]: Start difference. First operand has 47 places, 45 transitions, 315 flow. Second operand 4 states and 401 transitions. [2021-04-29 00:46:34,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 45 transitions, 317 flow [2021-04-29 00:46:34,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 45 transitions, 218 flow, removed 16 selfloop flow, removed 7 redundant places. [2021-04-29 00:46:34,634 INFO L241 Difference]: Finished difference. Result has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:34,634 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=42, PETRI_TRANSITIONS=0} [2021-04-29 00:46:34,634 INFO L343 CegarLoopForPetriNet]: 68 programPoint places, -26 predicate places. [2021-04-29 00:46:34,635 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 00:46:34,635 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:34,635 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 0 transitions, 0 flow [2021-04-29 00:46:34,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 00:46:34,636 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 00:46:34,636 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 00:46:34,636 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 00:46:34,636 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 00:46:34,637 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 00:46:34,637 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 00:46:34,637 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-29 00:46:34,639 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 00:46:34,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 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 00:46:34,640 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 00:46:34,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 12:46:34 BasicIcfg [2021-04-29 00:46:34,646 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 00:46:34,648 INFO L168 Benchmark]: Toolchain (without parser) took 16184.09 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 276.5 MB in the beginning and 311.4 MB in the end (delta: -34.9 MB). Peak memory consumption was 111.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:34,648 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:46:34,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 883.04 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 282.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:34,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.88 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:46:34,650 INFO L168 Benchmark]: Boogie Preprocessor took 32.55 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 00:46:34,651 INFO L168 Benchmark]: RCFGBuilder took 554.18 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 259.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:34,652 INFO L168 Benchmark]: TraceAbstraction took 14557.31 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 258.3 MB in the beginning and 311.4 MB in the end (delta: -53.1 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.0 GB. [2021-04-29 00:46:34,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 883.04 ms. Allocated memory is still 302.0 MB. Free memory was 273.4 MB in the beginning and 282.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 86.88 ms. Allocated memory is still 302.0 MB. Free memory was 282.4 MB in the beginning and 280.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 32.55 ms. Allocated memory is still 302.0 MB. Free memory was 280.4 MB in the beginning and 279.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 554.18 ms. Allocated memory is still 302.0 MB. Free memory was 279.3 MB in the beginning and 259.4 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 14557.31 ms. Allocated memory was 302.0 MB in the beginning and 446.7 MB in the end (delta: 144.7 MB). Free memory was 258.3 MB in the beginning and 311.4 MB in the end (delta: -53.1 MB). Peak memory consumption was 93.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12306.8ms, 54 PlacesBefore, 68 PlacesAfterwards, 48 TransitionsBefore, 61 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 97 TotalNumberOfCompositions, 3678 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1059, positive: 903, positive conditional: 903, positive unconditional: 0, negative: 156, negative conditional: 156, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 489, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 489, positive: 452, positive conditional: 0, positive unconditional: 452, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 489, positive: 445, positive conditional: 0, positive unconditional: 445, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 315, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 271, negative conditional: 0, negative unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1059, positive: 451, positive conditional: 451, positive unconditional: 0, negative: 119, negative conditional: 119, negative unconditional: 0, unknown: 489, unknown conditional: 489, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 484, Positive cache size: 447, Positive conditional cache size: 447, Positive unconditional cache size: 0, Negative cache size: 37, Negative conditional cache size: 37, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.0ms, 70 PlacesBefore, 37 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 410 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 49 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 21, positive conditional: 21, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 1, 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: 3, positive: 2, positive conditional: 1, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 19, positive conditional: 19, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 487, Positive cache size: 449, Positive conditional cache size: 449, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 131.0ms, 42 PlacesBefore, 42 PlacesAfterwards, 47 TransitionsBefore, 47 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 52 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 7, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 7, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40, positive: 24, positive conditional: 24, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 14, unknown conditional: 14, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 501, Positive cache size: 463, Positive conditional cache size: 463, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.8ms, 51 PlacesBefore, 47 PlacesAfterwards, 45 TransitionsBefore, 45 TransitionsAfterwards, 320 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 46 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 22, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 7, 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: 7, positive: 7, positive conditional: 0, positive unconditional: 7, 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: 22, positive: 13, positive conditional: 13, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 508, Positive cache size: 470, Positive conditional cache size: 470, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.3ms, 42 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): 508, Positive cache size: 470, Positive conditional cache size: 470, Positive unconditional cache size: 0, Negative cache size: 38, Negative conditional cache size: 38, 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, 59 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 14404.8ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 985.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12434.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 34 SDtfs, 30 SDslu, 6 SDs, 0 SdLazy, 143 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 231.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 83.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=3, InterpolantAutomatonStates: 19, 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: 21.8ms SsaConstructionTime, 164.4ms SatisfiabilityAnalysisTime, 305.3ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...