/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/safe006_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 23:34:56,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 23:34:56,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 23:34:56,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 23:34:56,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 23:34:56,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 23:34:56,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 23:34:56,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 23:34:56,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 23:34:56,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 23:34:56,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 23:34:56,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 23:34:56,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 23:34:56,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 23:34:56,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 23:34:56,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 23:34:56,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 23:34:56,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 23:34:56,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 23:34:56,542 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 23:34:56,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 23:34:56,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 23:34:56,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 23:34:56,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 23:34:56,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-04-28 23:34:56,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-04-28 23:34:56,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-04-28 23:34:56,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-04-28 23:34:56,568 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-04-28 23:34:56,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-04-28 23:34:56,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 23:34:56,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 23:34:56,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 23:34:56,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 23:34:56,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 23:34:56,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 23:34:56,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 23:34:56,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 23:34:56,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 23:34:56,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 23:34:56,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 23:34:56,585 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 [2021-04-28 23:34:56,638 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 23:34:56,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 23:34:56,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 23:34:56,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 23:34:56,645 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 23:34:56,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 23:34:56,645 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 23:34:56,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 23:34:56,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 23:34:56,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 23:34:56,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 23:34:56,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 23:34:56,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 23:34:56,648 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 23:34:56,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 23:34:56,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 23:34:56,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 23:34:56,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 23:34:56,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 23:34:56,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 23:34:56,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 23:34:56,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:34:56,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 23:34:56,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 23:34:56,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 23:34:56,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 23:34:56,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 23:34:56,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 23:34:56,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 23:34:56,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 23:34:56,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 23:34:57,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 23:34:57,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 23:34:57,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 23:34:57,068 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 23:34:57,069 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 23:34:57,070 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-04-28 23:34:57,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c8de3/b58be073291a41a2900c4ec0ae7f2e9e/FLAG3ef61f032 [2021-04-28 23:34:57,827 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 23:34:57,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe006_tso.oepc.i [2021-04-28 23:34:57,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c8de3/b58be073291a41a2900c4ec0ae7f2e9e/FLAG3ef61f032 [2021-04-28 23:34:58,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e143c8de3/b58be073291a41a2900c4ec0ae7f2e9e [2021-04-28 23:34:58,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 23:34:58,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 23:34:58,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 23:34:58,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 23:34:58,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 23:34:58,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:58,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fb1b3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58, skipping insertion in model container [2021-04-28 23:34:58,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:58,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 23:34:58,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 23:34:58,494 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/safe006_tso.oepc.i[950,963] [2021-04-28 23:34:58,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:34:58,734 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 23:34:58,750 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/safe006_tso.oepc.i[950,963] [2021-04-28 23:34:58,816 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 23:34:58,945 INFO L208 MainTranslator]: Completed translation [2021-04-28 23:34:58,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58 WrapperNode [2021-04-28 23:34:58,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 23:34:58,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 23:34:58,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 23:34:58,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 23:34:58,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 23:34:59,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 23:34:59,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 23:34:59,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 23:34:59,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... [2021-04-28 23:34:59,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 23:34:59,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 23:34:59,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 23:34:59,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 23:34:59,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 23:34:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 23:34:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 23:34:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 23:34:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 23:34:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 23:34:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 23:34:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 23:34:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 23:34:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 23:34:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 23:34:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 23:34:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 23:34:59,159 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 23:34:59,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 23:34:59,627 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-04-28 23:34:59,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:34:59 BoogieIcfgContainer [2021-04-28 23:34:59,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 23:34:59,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 23:34:59,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 23:34:59,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 23:34:59,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 11:34:58" (1/3) ... [2021-04-28 23:34:59,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4356725c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:34:59, skipping insertion in model container [2021-04-28 23:34:59,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 11:34:58" (2/3) ... [2021-04-28 23:34:59,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4356725c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 11:34:59, skipping insertion in model container [2021-04-28 23:34:59,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 11:34:59" (3/3) ... [2021-04-28 23:34:59,646 INFO L111 eAbstractionObserver]: Analyzing ICFG safe006_tso.oepc.i [2021-04-28 23:34:59,655 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 23:34:59,661 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-28 23:34:59,663 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 23:34:59,710 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,711 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,711 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,711 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,712 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,712 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,713 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,714 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,715 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,715 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,716 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,716 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,717 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,718 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,719 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,722 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,724 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,725 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 23:34:59,734 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 23:34:59,761 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-04-28 23:34:59,808 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 23:34:59,809 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 23:34:59,810 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 23:34:59,810 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 23:34:59,810 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 23:34:59,810 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 23:34:59,811 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 23:34:59,811 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 23:34:59,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 61 transitions, 132 flow [2021-04-28 23:34:59,902 INFO L129 PetriNetUnfolder]: 2/59 cut-off events. [2021-04-28 23:34:59,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:59,908 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. [2021-04-28 23:34:59,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 61 transitions, 132 flow [2021-04-28 23:34:59,916 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 49 transitions, 104 flow [2021-04-28 23:34:59,918 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:34:59,937 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-28 23:34:59,942 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 104 flow [2021-04-28 23:34:59,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 55 places, 49 transitions, 104 flow [2021-04-28 23:34:59,980 INFO L129 PetriNetUnfolder]: 1/49 cut-off events. [2021-04-28 23:34:59,980 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:34:59,982 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. [2021-04-28 23:34:59,986 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-28 23:35:05,954 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2021-04-28 23:35:07,381 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:07,556 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:07,720 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:35:07,897 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2021-04-28 23:35:08,048 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:35:08,191 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2021-04-28 23:35:08,674 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-28 23:35:08,920 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-04-28 23:35:09,149 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-28 23:35:09,392 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2021-04-28 23:35:09,585 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:09,757 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:09,929 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:10,106 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2021-04-28 23:35:10,708 INFO L158 LiptonReduction]: Checked pairs total: 4326 [2021-04-28 23:35:10,709 INFO L160 LiptonReduction]: Total number of compositions: 110 [2021-04-28 23:35:10,719 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10803 [2021-04-28 23:35:10,762 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2021-04-28 23:35:10,762 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:10,762 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:10,764 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2021-04-28 23:35:10,765 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:10,773 INFO L82 PathProgramCache]: Analyzing trace with hash -405816546, now seen corresponding path program 1 times [2021-04-28 23:35:10,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:10,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275390544] [2021-04-28 23:35:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:11,034 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:35:11,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:35:11,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:11,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275390544] [2021-04-28 23:35:11,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:11,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 23:35:11,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231571202] [2021-04-28 23:35:11,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 23:35:11,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:11,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 23:35:11,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 23:35:11,087 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-28 23:35:11,092 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-04-28 23:35:11,092 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:11,092 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-28 23:35:11,094 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:11,185 INFO L129 PetriNetUnfolder]: 25/143 cut-off events. [2021-04-28 23:35:11,185 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:11,186 INFO L84 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 143 events. 25/143 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 761 event pairs, 7 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 168. Up to 50 conditions per place. [2021-04-28 23:35:11,188 INFO L132 encePairwiseOnDemand]: 153/171 looper letters, 3 selfloop transitions, 3 changer transitions 42/73 dead transitions. [2021-04-28 23:35:11,188 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 73 transitions, 212 flow [2021-04-28 23:35:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:35:11,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:35:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2021-04-28 23:35:11,206 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6471734892787524 [2021-04-28 23:35:11,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2021-04-28 23:35:11,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2021-04-28 23:35:11,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:11,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2021-04-28 23:35:11,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2021-04-28 23:35:11,226 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) [2021-04-28 23:35:11,227 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) [2021-04-28 23:35:11,229 INFO L185 Difference]: Start difference. First operand has 73 places, 66 transitions, 138 flow. Second operand 3 states and 332 transitions. [2021-04-28 23:35:11,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 73 transitions, 212 flow [2021-04-28 23:35:11,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 73 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 23:35:11,237 INFO L241 Difference]: Finished difference. Result has 74 places, 31 transitions, 81 flow [2021-04-28 23:35:11,239 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=74, PETRI_TRANSITIONS=31} [2021-04-28 23:35:11,241 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, 1 predicate places. [2021-04-28 23:35:11,241 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:11,241 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-28 23:35:11,242 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 31 transitions, 81 flow [2021-04-28 23:35:11,242 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 31 transitions, 81 flow [2021-04-28 23:35:11,248 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2021-04-28 23:35:11,248 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:11,249 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 39 events. 3/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 159 event pairs, 1 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 50. Up to 10 conditions per place. [2021-04-28 23:35:11,250 INFO L146 LiptonReduction]: Number of co-enabled transitions 450 [2021-04-28 23:35:11,267 INFO L158 LiptonReduction]: Checked pairs total: 254 [2021-04-28 23:35:11,267 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:11,268 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-04-28 23:35:11,270 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 81 flow [2021-04-28 23:35:11,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 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) [2021-04-28 23:35:11,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:11,271 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:11,271 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 23:35:11,271 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:11,272 INFO L82 PathProgramCache]: Analyzing trace with hash 290793743, now seen corresponding path program 1 times [2021-04-28 23:35:11,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:11,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986427341] [2021-04-28 23:35:11,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:11,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,404 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:35:11,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:35:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:11,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986427341] [2021-04-28 23:35:11,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:11,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:35:11,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477899302] [2021-04-28 23:35:11,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:35:11,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:11,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:35:11,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:35:11,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-28 23:35:11,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:11,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:11,417 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-28 23:35:11,417 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:11,490 INFO L129 PetriNetUnfolder]: 4/65 cut-off events. [2021-04-28 23:35:11,491 INFO L130 PetriNetUnfolder]: For 9/12 co-relation queries the response was YES. [2021-04-28 23:35:11,491 INFO L84 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 65 events. 4/65 cut-off events. For 9/12 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 286 event pairs, 0 based on Foata normal form. 3/39 useless extension candidates. Maximal degree in co-relation 95. Up to 12 conditions per place. [2021-04-28 23:35:11,492 INFO L132 encePairwiseOnDemand]: 166/171 looper letters, 4 selfloop transitions, 6 changer transitions 1/34 dead transitions. [2021-04-28 23:35:11,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 111 flow [2021-04-28 23:35:11,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 23:35:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 23:35:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2021-04-28 23:35:11,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2021-04-28 23:35:11,497 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2021-04-28 23:35:11,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2021-04-28 23:35:11,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:11,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2021-04-28 23:35:11,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 states have internal predecessors, (486), 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) [2021-04-28 23:35:11,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-04-28 23:35:11,505 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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) [2021-04-28 23:35:11,505 INFO L185 Difference]: Start difference. First operand has 37 places, 31 transitions, 81 flow. Second operand 5 states and 486 transitions. [2021-04-28 23:35:11,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 111 flow [2021-04-28 23:35:11,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:35:11,508 INFO L241 Difference]: Finished difference. Result has 43 places, 32 transitions, 110 flow [2021-04-28 23:35:11,508 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=32} [2021-04-28 23:35:11,509 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -30 predicate places. [2021-04-28 23:35:11,509 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:11,509 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-28 23:35:11,509 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 32 transitions, 110 flow [2021-04-28 23:35:11,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 32 transitions, 110 flow [2021-04-28 23:35:11,518 INFO L129 PetriNetUnfolder]: 1/58 cut-off events. [2021-04-28 23:35:11,518 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-28 23:35:11,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 58 events. 1/58 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 241 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 89. Up to 10 conditions per place. [2021-04-28 23:35:11,520 INFO L146 LiptonReduction]: Number of co-enabled transitions 466 [2021-04-28 23:35:11,529 INFO L158 LiptonReduction]: Checked pairs total: 141 [2021-04-28 23:35:11,529 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:11,529 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20 [2021-04-28 23:35:11,531 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 110 flow [2021-04-28 23:35:11,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 23:35:11,531 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:11,531 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:11,532 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 23:35:11,532 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:11,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:11,532 INFO L82 PathProgramCache]: Analyzing trace with hash 304575444, now seen corresponding path program 1 times [2021-04-28 23:35:11,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:11,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939486131] [2021-04-28 23:35:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:11,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,604 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:35:11,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:35:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:11,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939486131] [2021-04-28 23:35:11,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:11,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 23:35:11,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372312984] [2021-04-28 23:35:11,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 23:35:11,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:11,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 23:35:11,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 23:35:11,622 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 171 [2021-04-28 23:35:11,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 110 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) [2021-04-28 23:35:11,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:11,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 171 [2021-04-28 23:35:11,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:11,642 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-04-28 23:35:11,642 INFO L130 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2021-04-28 23:35:11,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 43 events. 1/43 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 166 event pairs, 0 based on Foata normal form. 3/25 useless extension candidates. Maximal degree in co-relation 70. Up to 7 conditions per place. [2021-04-28 23:35:11,643 INFO L132 encePairwiseOnDemand]: 168/171 looper letters, 3 selfloop transitions, 3 changer transitions 3/32 dead transitions. [2021-04-28 23:35:11,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 32 transitions, 124 flow [2021-04-28 23:35:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 23:35:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 23:35:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2021-04-28 23:35:11,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2021-04-28 23:35:11,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2021-04-28 23:35:11,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2021-04-28 23:35:11,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:11,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2021-04-28 23:35:11,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2021-04-28 23:35:11,649 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) [2021-04-28 23:35:11,650 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) [2021-04-28 23:35:11,650 INFO L185 Difference]: Start difference. First operand has 42 places, 32 transitions, 110 flow. Second operand 3 states and 306 transitions. [2021-04-28 23:35:11,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 32 transitions, 124 flow [2021-04-28 23:35:11,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 23:35:11,653 INFO L241 Difference]: Finished difference. Result has 44 places, 29 transitions, 103 flow [2021-04-28 23:35:11,654 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=44, PETRI_TRANSITIONS=29} [2021-04-28 23:35:11,654 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -29 predicate places. [2021-04-28 23:35:11,654 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:11,654 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-28 23:35:11,655 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 29 transitions, 103 flow [2021-04-28 23:35:11,655 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 29 transitions, 103 flow [2021-04-28 23:35:11,660 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-04-28 23:35:11,660 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-04-28 23:35:11,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 33 events. 1/33 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 118 event pairs, 0 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 54. Up to 6 conditions per place. [2021-04-28 23:35:11,661 INFO L146 LiptonReduction]: Number of co-enabled transitions 370 [2021-04-28 23:35:11,665 INFO L158 LiptonReduction]: Checked pairs total: 132 [2021-04-28 23:35:11,666 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:11,666 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-04-28 23:35:11,667 INFO L480 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 103 flow [2021-04-28 23:35:11,668 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) [2021-04-28 23:35:11,668 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:11,668 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:11,668 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 23:35:11,668 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:11,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:11,669 INFO L82 PathProgramCache]: Analyzing trace with hash 852276573, now seen corresponding path program 1 times [2021-04-28 23:35:11,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:11,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414559432] [2021-04-28 23:35:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:11,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,750 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:35:11,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:35:11,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:11,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414559432] [2021-04-28 23:35:11,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:11,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:35:11,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872565786] [2021-04-28 23:35:11,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:35:11,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:11,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:35:11,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:35:11,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 171 [2021-04-28 23:35:11,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 103 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-28 23:35:11,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:11,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 171 [2021-04-28 23:35:11,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:11,786 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2021-04-28 23:35:11,786 INFO L130 PetriNetUnfolder]: For 37/39 co-relation queries the response was YES. [2021-04-28 23:35:11,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 37 events. 0/37 cut-off events. For 37/39 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 125 event pairs, 0 based on Foata normal form. 2/20 useless extension candidates. Maximal degree in co-relation 0. Up to 6 conditions per place. [2021-04-28 23:35:11,787 INFO L132 encePairwiseOnDemand]: 167/171 looper letters, 2 selfloop transitions, 3 changer transitions 13/29 dead transitions. [2021-04-28 23:35:11,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 29 transitions, 117 flow [2021-04-28 23:35:11,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:35:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:35:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2021-04-28 23:35:11,789 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5672514619883041 [2021-04-28 23:35:11,790 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 388 transitions. [2021-04-28 23:35:11,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 388 transitions. [2021-04-28 23:35:11,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:11,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 388 transitions. [2021-04-28 23:35:11,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.0) internal successors, (388), 4 states have internal predecessors, (388), 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) [2021-04-28 23:35:11,794 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) [2021-04-28 23:35:11,794 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) [2021-04-28 23:35:11,795 INFO L185 Difference]: Start difference. First operand has 42 places, 29 transitions, 103 flow. Second operand 4 states and 388 transitions. [2021-04-28 23:35:11,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 29 transitions, 117 flow [2021-04-28 23:35:11,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 29 transitions, 103 flow, removed 1 selfloop flow, removed 5 redundant places. [2021-04-28 23:35:11,797 INFO L241 Difference]: Finished difference. Result has 42 places, 16 transitions, 70 flow [2021-04-28 23:35:11,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=70, PETRI_PLACES=42, PETRI_TRANSITIONS=16} [2021-04-28 23:35:11,797 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -31 predicate places. [2021-04-28 23:35:11,797 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:11,798 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 16 transitions, 70 flow [2021-04-28 23:35:11,798 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 16 transitions, 70 flow [2021-04-28 23:35:11,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 16 transitions, 70 flow [2021-04-28 23:35:11,801 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2021-04-28 23:35:11,801 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2021-04-28 23:35:11,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 16 events. 0/16 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:35:11,802 INFO L146 LiptonReduction]: Number of co-enabled transitions 64 [2021-04-28 23:35:11,873 INFO L158 LiptonReduction]: Checked pairs total: 35 [2021-04-28 23:35:11,873 INFO L160 LiptonReduction]: Total number of compositions: 3 [2021-04-28 23:35:11,873 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 76 [2021-04-28 23:35:11,874 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 16 transitions, 70 flow [2021-04-28 23:35:11,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-28 23:35:11,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 23:35:11,875 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 23:35:11,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 23:35:11,876 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 23:35:11,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 23:35:11,876 INFO L82 PathProgramCache]: Analyzing trace with hash 639156765, now seen corresponding path program 1 times [2021-04-28 23:35:11,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 23:35:11,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738572046] [2021-04-28 23:35:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 23:35:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 23:35:11,914 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 23:35:11,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 23:35:11,922 INFO L142 QuantifierPusher]: treesize reduction 3, result has 75.0 percent of original size [2021-04-28 23:35:11,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-04-28 23:35:11,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 23:35:11,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738572046] [2021-04-28 23:35:11,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 23:35:11,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 23:35:11,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457772947] [2021-04-28 23:35:11,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 23:35:11,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 23:35:11,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 23:35:11,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 23:35:11,935 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 174 [2021-04-28 23:35:11,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 16 transitions, 70 flow. Second operand has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-28 23:35:11,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 23:35:11,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 174 [2021-04-28 23:35:11,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 23:35:11,955 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-28 23:35:11,955 INFO L130 PetriNetUnfolder]: For 70/70 co-relation queries the response was YES. [2021-04-28 23:35:11,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 15 events. 0/15 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 13 event pairs, 0 based on Foata normal form. 5/15 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-28 23:35:11,956 INFO L132 encePairwiseOnDemand]: 168/174 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2021-04-28 23:35:11,956 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 15 transitions, 72 flow [2021-04-28 23:35:11,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 23:35:11,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 23:35:11,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 389 transitions. [2021-04-28 23:35:11,958 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5589080459770115 [2021-04-28 23:35:11,958 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 389 transitions. [2021-04-28 23:35:11,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 389 transitions. [2021-04-28 23:35:11,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 23:35:11,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 389 transitions. [2021-04-28 23:35:11,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 97.25) internal successors, (389), 4 states have internal predecessors, (389), 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) [2021-04-28 23:35:11,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2021-04-28 23:35:11,964 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 174.0) internal successors, (870), 5 states have internal predecessors, (870), 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) [2021-04-28 23:35:11,964 INFO L185 Difference]: Start difference. First operand has 31 places, 16 transitions, 70 flow. Second operand 4 states and 389 transitions. [2021-04-28 23:35:11,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 15 transitions, 72 flow [2021-04-28 23:35:11,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 15 transitions, 48 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-04-28 23:35:11,965 INFO L241 Difference]: Finished difference. Result has 23 places, 0 transitions, 0 flow [2021-04-28 23:35:11,965 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=174, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=23, PETRI_TRANSITIONS=0} [2021-04-28 23:35:11,966 INFO L343 CegarLoopForPetriNet]: 73 programPoint places, -50 predicate places. [2021-04-28 23:35:11,966 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 23:35:11,966 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-28 23:35:11,966 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 23 places, 0 transitions, 0 flow [2021-04-28 23:35:11,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-28 23:35:11,967 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-28 23:35:11,967 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 23:35:11,967 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. [2021-04-28 23:35:11,967 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-28 23:35:11,967 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-28 23:35:11,967 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 23:35:11,968 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-04-28 23:35:11,969 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-28 23:35:11,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 95.8) internal successors, (479), 5 states have internal predecessors, (479), 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) [2021-04-28 23:35:11,970 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 23:35:11,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 11:35:11 BasicIcfg [2021-04-28 23:35:11,975 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-28 23:35:11,976 INFO L168 Benchmark]: Toolchain (without parser) took 13880.82 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 276.1 MB in the beginning and 345.6 MB in the end (delta: -69.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,977 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-28 23:35:11,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 805.72 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 284.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.08 ms. Allocated memory is still 302.0 MB. Free memory was 284.0 MB in the beginning and 282.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,978 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 280.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,979 INFO L168 Benchmark]: RCFGBuilder took 578.80 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 260.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,980 INFO L168 Benchmark]: TraceAbstraction took 12338.42 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 259.5 MB in the beginning and 345.6 MB in the end (delta: -86.0 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. [2021-04-28 23:35:11,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 805.72 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 284.0 MB in the end (delta: -11.1 MB). Peak memory consumption was 37.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 76.08 ms. Allocated memory is still 302.0 MB. Free memory was 284.0 MB in the beginning and 282.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.42 ms. Allocated memory is still 302.0 MB. Free memory was 282.6 MB in the beginning and 280.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 578.80 ms. Allocated memory is still 302.0 MB. Free memory was 280.5 MB in the beginning and 260.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 12338.42 ms. Allocated memory was 302.0 MB in the beginning and 436.2 MB in the end (delta: 134.2 MB). Free memory was 259.5 MB in the beginning and 345.6 MB in the end (delta: -86.0 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10766.4ms, 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: 1481, positive: 1293, positive conditional: 1293, 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: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 594, positive: 553, positive conditional: 0, positive unconditional: 553, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 594, positive: 548, positive conditional: 0, positive unconditional: 548, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 41, negative conditional: 0, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 263, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 231, negative conditional: 0, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1481, positive: 740, positive conditional: 740, positive unconditional: 0, negative: 147, negative conditional: 147, negative unconditional: 0, unknown: 594, unknown conditional: 594, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 584, Positive cache size: 543, Positive conditional cache size: 543, Positive unconditional cache size: 0, Negative cache size: 41, Negative conditional cache size: 41, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.9ms, 74 PlacesBefore, 37 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 254 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 87, positive: 74, positive conditional: 74, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 1, positive unconditional: 9, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ 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] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 87, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 13, unknown conditional: 13, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 597, Positive cache size: 553, Positive conditional cache size: 553, Positive unconditional cache size: 0, Negative cache size: 44, Negative conditional cache size: 44, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.4ms, 43 PlacesBefore, 42 PlacesAfterwards, 32 TransitionsBefore, 32 TransitionsAfterwards, 466 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 141 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 47, positive conditional: 47, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 602, Positive cache size: 557, Positive conditional cache size: 557, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.1ms, 44 PlacesBefore, 42 PlacesAfterwards, 29 TransitionsBefore, 29 TransitionsAfterwards, 370 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 132 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52, positive: 45, positive conditional: 45, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 52, positive: 43, positive conditional: 43, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 604, Positive cache size: 559, Positive conditional cache size: 559, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 75.0ms, 42 PlacesBefore, 31 PlacesAfterwards, 16 TransitionsBefore, 16 TransitionsAfterwards, 64 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 35 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 15, 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: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 17, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 605, Positive cache size: 560, Positive conditional cache size: 560, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2ms, 23 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): 605, Positive cache size: 560, Positive conditional cache size: 560, Positive unconditional cache size: 0, Negative cache size: 45, Negative conditional cache size: 45, 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: 26.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 12171.3ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 365.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10924.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 44 SDtfs, 19 SDslu, 4 SDs, 0 SdLazy, 39 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 74.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=0, 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: 14.2ms SsaConstructionTime, 146.4ms SatisfiabilityAnalysisTime, 362.5ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 174 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...