./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 906e84f0a25a0f5132fcddd369ea6157dd86409b963593c3fbd2737ae25908f1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 07:02:18,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 07:02:18,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 07:02:18,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 07:02:18,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 07:02:18,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 07:02:18,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 07:02:18,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 07:02:18,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 07:02:18,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 07:02:18,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 07:02:18,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 07:02:18,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 07:02:18,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 07:02:18,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 07:02:18,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 07:02:18,688 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 07:02:18,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 07:02:18,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 07:02:18,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 07:02:18,695 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 07:02:18,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 07:02:18,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 07:02:18,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 07:02:18,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 07:02:18,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 07:02:18,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 07:02:18,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 07:02:18,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 07:02:18,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 07:02:18,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 07:02:18,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 07:02:18,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 07:02:18,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 07:02:18,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 07:02:18,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 07:02:18,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 07:02:18,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 07:02:18,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 07:02:18,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 07:02:18,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 07:02:18,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 07:02:18,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 07:02:18,742 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 07:02:18,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 07:02:18,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 07:02:18,743 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 07:02:18,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 07:02:18,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 07:02:18,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 07:02:18,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 07:02:18,744 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 07:02:18,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 07:02:18,745 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 07:02:18,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 07:02:18,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 07:02:18,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 07:02:18,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 07:02:18,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 07:02:18,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 07:02:18,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 07:02:18,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 07:02:18,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:02:18,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 07:02:18,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 07:02:18,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 07:02:18,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 906e84f0a25a0f5132fcddd369ea6157dd86409b963593c3fbd2737ae25908f1 [2022-07-21 07:02:19,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 07:02:19,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 07:02:19,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 07:02:19,024 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 07:02:19,024 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 07:02:19,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c [2022-07-21 07:02:19,082 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0554fd5/d15a7f0f00784ef89912b9de62f8c0fe/FLAG53c4e79a8 [2022-07-21 07:02:19,813 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 07:02:19,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c [2022-07-21 07:02:19,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0554fd5/d15a7f0f00784ef89912b9de62f8c0fe/FLAG53c4e79a8 [2022-07-21 07:02:20,332 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b0554fd5/d15a7f0f00784ef89912b9de62f8c0fe [2022-07-21 07:02:20,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 07:02:20,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 07:02:20,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 07:02:20,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 07:02:20,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 07:02:20,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:02:20" (1/1) ... [2022-07-21 07:02:20,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57893b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:20, skipping insertion in model container [2022-07-21 07:02:20,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 07:02:20" (1/1) ... [2022-07-21 07:02:20,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 07:02:20,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 07:02:22,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[382357,382370] [2022-07-21 07:02:22,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[383339,383352] [2022-07-21 07:02:22,604 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:02:22,615 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 07:02:23,379 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[382357,382370] [2022-07-21 07:02:23,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-1.c[383339,383352] [2022-07-21 07:02:23,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 07:02:23,449 INFO L208 MainTranslator]: Completed translation [2022-07-21 07:02:23,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23 WrapperNode [2022-07-21 07:02:23,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 07:02:23,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 07:02:23,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 07:02:23,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 07:02:23,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:23,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:23,993 INFO L137 Inliner]: procedures = 64, calls = 72, calls flagged for inlining = 41, calls inlined = 41, statements flattened = 13088 [2022-07-21 07:02:23,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 07:02:23,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 07:02:23,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 07:02:23,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 07:02:24,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,066 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 07:02:24,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 07:02:24,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 07:02:24,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 07:02:24,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (1/1) ... [2022-07-21 07:02:24,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 07:02:24,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 07:02:24,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 07:02:24,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 07:02:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 07:02:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-21 07:02:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-21 07:02:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-21 07:02:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-21 07:02:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-21 07:02:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-21 07:02:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-21 07:02:24,611 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-21 07:02:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-21 07:02:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-21 07:02:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-21 07:02:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-21 07:02:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-21 07:02:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-21 07:02:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 07:02:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 07:02:24,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 07:02:24,799 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 07:02:24,808 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 07:02:29,984 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 07:02:30,009 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 07:02:30,010 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-21 07:02:30,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:02:30 BoogieIcfgContainer [2022-07-21 07:02:30,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 07:02:30,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 07:02:30,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 07:02:30,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 07:02:30,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 07:02:20" (1/3) ... [2022-07-21 07:02:30,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651880e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:02:30, skipping insertion in model container [2022-07-21 07:02:30,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 07:02:23" (2/3) ... [2022-07-21 07:02:30,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651880e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 07:02:30, skipping insertion in model container [2022-07-21 07:02:30,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 07:02:30" (3/3) ... [2022-07-21 07:02:30,023 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-1.c [2022-07-21 07:02:30,032 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 07:02:30,033 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-21 07:02:30,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 07:02:30,234 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3b18a16f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f355969 [2022-07-21 07:02:30,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-21 07:02:30,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 2523 states, 2487 states have (on average 1.845999195818255) internal successors, (4591), 2492 states have internal predecessors, (4591), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-21 07:02:30,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:30,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:30,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:30,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:30,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:30,291 INFO L85 PathProgramCache]: Analyzing trace with hash -289990772, now seen corresponding path program 1 times [2022-07-21 07:02:30,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:30,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677436577] [2022-07-21 07:02:30,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:30,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:30,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:30,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677436577] [2022-07-21 07:02:30,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677436577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:30,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:30,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 07:02:30,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575046489] [2022-07-21 07:02:30,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:30,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 07:02:30,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 07:02:30,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 07:02:30,876 INFO L87 Difference]: Start difference. First operand has 2523 states, 2487 states have (on average 1.845999195818255) internal successors, (4591), 2492 states have internal predecessors, (4591), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:31,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:31,996 INFO L93 Difference]: Finished difference Result 5155 states and 9474 transitions. [2022-07-21 07:02:31,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 07:02:31,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:31,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:32,015 INFO L225 Difference]: With dead ends: 5155 [2022-07-21 07:02:32,016 INFO L226 Difference]: Without dead ends: 2575 [2022-07-21 07:02:32,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-21 07:02:32,024 INFO L413 NwaCegarLoop]: 4601 mSDtfsCounter, 896 mSDsluCounter, 12431 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 17032 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:32,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 17032 Invalid, 678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 07:02:32,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2022-07-21 07:02:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2455. [2022-07-21 07:02:32,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2455 states, 2421 states have (on average 1.8306484923585296) internal successors, (4432), 2424 states have internal predecessors, (4432), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-21 07:02:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2455 states to 2455 states and 4482 transitions. [2022-07-21 07:02:32,105 INFO L78 Accepts]: Start accepts. Automaton has 2455 states and 4482 transitions. Word has length 157 [2022-07-21 07:02:32,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:32,106 INFO L495 AbstractCegarLoop]: Abstraction has 2455 states and 4482 transitions. [2022-07-21 07:02:32,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:32,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2455 states and 4482 transitions. [2022-07-21 07:02:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:32,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:32,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:32,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 07:02:32,109 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:32,110 INFO L85 PathProgramCache]: Analyzing trace with hash -628278322, now seen corresponding path program 1 times [2022-07-21 07:02:32,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:32,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756945970] [2022-07-21 07:02:32,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:32,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:32,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:32,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:32,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:32,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756945970] [2022-07-21 07:02:32,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756945970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:32,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:32,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:32,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506920740] [2022-07-21 07:02:32,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:32,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:32,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:32,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:32,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:32,265 INFO L87 Difference]: Start difference. First operand 2455 states and 4482 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:35,175 INFO L93 Difference]: Finished difference Result 3362 states and 5958 transitions. [2022-07-21 07:02:35,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:35,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:35,190 INFO L225 Difference]: With dead ends: 3362 [2022-07-21 07:02:35,190 INFO L226 Difference]: Without dead ends: 3046 [2022-07-21 07:02:35,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:35,193 INFO L413 NwaCegarLoop]: 4852 mSDtfsCounter, 5234 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2817 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5251 SdHoareTripleChecker+Valid, 22385 SdHoareTripleChecker+Invalid, 2898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:35,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5251 Valid, 22385 Invalid, 2898 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [81 Valid, 2817 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-21 07:02:35,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3046 states. [2022-07-21 07:02:35,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3046 to 2787. [2022-07-21 07:02:35,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2724 states have (on average 1.8050660792951543) internal successors, (4917), 2729 states have internal predecessors, (4917), 47 states have call successors, (47), 13 states have call predecessors, (47), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2022-07-21 07:02:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 5016 transitions. [2022-07-21 07:02:35,289 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 5016 transitions. Word has length 157 [2022-07-21 07:02:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:35,289 INFO L495 AbstractCegarLoop]: Abstraction has 2787 states and 5016 transitions. [2022-07-21 07:02:35,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 5016 transitions. [2022-07-21 07:02:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:35,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:35,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 07:02:35,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:35,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash 770675280, now seen corresponding path program 1 times [2022-07-21 07:02:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:35,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191791901] [2022-07-21 07:02:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:35,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:35,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191791901] [2022-07-21 07:02:35,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191791901] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:35,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:35,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:35,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180678499] [2022-07-21 07:02:35,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:35,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:35,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:35,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:35,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:35,439 INFO L87 Difference]: Start difference. First operand 2787 states and 5016 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:38,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:38,072 INFO L93 Difference]: Finished difference Result 4512 states and 7800 transitions. [2022-07-21 07:02:38,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:38,073 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:38,088 INFO L225 Difference]: With dead ends: 4512 [2022-07-21 07:02:38,089 INFO L226 Difference]: Without dead ends: 3866 [2022-07-21 07:02:38,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:38,097 INFO L413 NwaCegarLoop]: 4779 mSDtfsCounter, 5274 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5291 SdHoareTripleChecker+Valid, 22237 SdHoareTripleChecker+Invalid, 2757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:38,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5291 Valid, 22237 Invalid, 2757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 07:02:38,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3866 states. [2022-07-21 07:02:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3866 to 3399. [2022-07-21 07:02:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3399 states, 3284 states have (on average 1.7649208282582216) internal successors, (5796), 3291 states have internal predecessors, (5796), 85 states have call successors, (85), 25 states have call predecessors, (85), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2022-07-21 07:02:38,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3399 states to 3399 states and 5981 transitions. [2022-07-21 07:02:38,331 INFO L78 Accepts]: Start accepts. Automaton has 3399 states and 5981 transitions. Word has length 157 [2022-07-21 07:02:38,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:38,331 INFO L495 AbstractCegarLoop]: Abstraction has 3399 states and 5981 transitions. [2022-07-21 07:02:38,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:38,332 INFO L276 IsEmpty]: Start isEmpty. Operand 3399 states and 5981 transitions. [2022-07-21 07:02:38,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:38,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:38,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:38,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 07:02:38,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:38,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:38,334 INFO L85 PathProgramCache]: Analyzing trace with hash -846765170, now seen corresponding path program 1 times [2022-07-21 07:02:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:38,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566505072] [2022-07-21 07:02:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:38,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:38,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:38,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:38,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:38,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566505072] [2022-07-21 07:02:38,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566505072] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:38,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:38,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846732168] [2022-07-21 07:02:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:38,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:38,493 INFO L87 Difference]: Start difference. First operand 3399 states and 5981 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:41,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:41,035 INFO L93 Difference]: Finished difference Result 6762 states and 11393 transitions. [2022-07-21 07:02:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:41,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:41,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:41,055 INFO L225 Difference]: With dead ends: 6762 [2022-07-21 07:02:41,056 INFO L226 Difference]: Without dead ends: 5504 [2022-07-21 07:02:41,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:41,062 INFO L413 NwaCegarLoop]: 4843 mSDtfsCounter, 5233 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2813 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 22376 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 22376 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2813 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 07:02:41,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5504 states. [2022-07-21 07:02:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5504 to 4625. [2022-07-21 07:02:41,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4625 states, 4406 states have (on average 1.7149341806627327) internal successors, (7556), 4417 states have internal predecessors, (7556), 161 states have call successors, (161), 49 states have call predecessors, (161), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2022-07-21 07:02:41,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4625 states to 4625 states and 7919 transitions. [2022-07-21 07:02:41,218 INFO L78 Accepts]: Start accepts. Automaton has 4625 states and 7919 transitions. Word has length 157 [2022-07-21 07:02:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:41,222 INFO L495 AbstractCegarLoop]: Abstraction has 4625 states and 7919 transitions. [2022-07-21 07:02:41,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4625 states and 7919 transitions. [2022-07-21 07:02:41,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:41,225 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:41,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:41,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 07:02:41,226 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:41,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:41,226 INFO L85 PathProgramCache]: Analyzing trace with hash -483298672, now seen corresponding path program 1 times [2022-07-21 07:02:41,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:41,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116859206] [2022-07-21 07:02:41,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:41,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:41,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:41,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:41,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116859206] [2022-07-21 07:02:41,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116859206] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:41,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:41,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:41,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303086838] [2022-07-21 07:02:41,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:41,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:41,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:41,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:41,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:41,430 INFO L87 Difference]: Start difference. First operand 4625 states and 7919 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:43,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:43,887 INFO L93 Difference]: Finished difference Result 11260 states and 18593 transitions. [2022-07-21 07:02:43,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:43,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:43,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:43,935 INFO L225 Difference]: With dead ends: 11260 [2022-07-21 07:02:43,936 INFO L226 Difference]: Without dead ends: 8776 [2022-07-21 07:02:43,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:43,948 INFO L413 NwaCegarLoop]: 4840 mSDtfsCounter, 5233 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2807 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 22373 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:43,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 22373 Invalid, 2891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2807 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 07:02:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8776 states. [2022-07-21 07:02:44,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8776 to 7083. [2022-07-21 07:02:44,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7083 states, 6656 states have (on average 1.6652644230769231) internal successors, (11084), 6675 states have internal predecessors, (11084), 313 states have call successors, (313), 97 states have call predecessors, (313), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2022-07-21 07:02:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7083 states to 7083 states and 11821 transitions. [2022-07-21 07:02:44,260 INFO L78 Accepts]: Start accepts. Automaton has 7083 states and 11821 transitions. Word has length 157 [2022-07-21 07:02:44,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:44,260 INFO L495 AbstractCegarLoop]: Abstraction has 7083 states and 11821 transitions. [2022-07-21 07:02:44,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:44,261 INFO L276 IsEmpty]: Start isEmpty. Operand 7083 states and 11821 transitions. [2022-07-21 07:02:44,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:44,265 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:44,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:44,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 07:02:44,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:44,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:44,267 INFO L85 PathProgramCache]: Analyzing trace with hash -194479282, now seen corresponding path program 1 times [2022-07-21 07:02:44,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:44,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195472641] [2022-07-21 07:02:44,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:44,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:44,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:44,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:44,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195472641] [2022-07-21 07:02:44,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195472641] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:44,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:44,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:44,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263654309] [2022-07-21 07:02:44,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:44,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:44,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:44,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:44,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:44,409 INFO L87 Difference]: Start difference. First operand 7083 states and 11821 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:47,437 INFO L93 Difference]: Finished difference Result 20254 states and 33049 transitions. [2022-07-21 07:02:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:47,570 INFO L225 Difference]: With dead ends: 20254 [2022-07-21 07:02:47,570 INFO L226 Difference]: Without dead ends: 15312 [2022-07-21 07:02:47,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:47,612 INFO L413 NwaCegarLoop]: 4837 mSDtfsCounter, 5233 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2801 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 22370 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:47,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 22370 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2801 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 07:02:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15312 states. [2022-07-21 07:02:48,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15312 to 12013. [2022-07-21 07:02:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12013 states, 11170 states have (on average 1.6257833482542525) internal successors, (18160), 11205 states have internal predecessors, (18160), 617 states have call successors, (617), 193 states have call predecessors, (617), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2022-07-21 07:02:48,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12013 states to 12013 states and 19699 transitions. [2022-07-21 07:02:48,460 INFO L78 Accepts]: Start accepts. Automaton has 12013 states and 19699 transitions. Word has length 157 [2022-07-21 07:02:48,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:48,461 INFO L495 AbstractCegarLoop]: Abstraction has 12013 states and 19699 transitions. [2022-07-21 07:02:48,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 12013 states and 19699 transitions. [2022-07-21 07:02:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:48,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:48,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:48,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 07:02:48,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:48,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:48,469 INFO L85 PathProgramCache]: Analyzing trace with hash -739351856, now seen corresponding path program 1 times [2022-07-21 07:02:48,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:48,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903579959] [2022-07-21 07:02:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:48,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:48,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:48,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:48,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903579959] [2022-07-21 07:02:48,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903579959] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:48,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:48,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:48,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918560012] [2022-07-21 07:02:48,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:48,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:48,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:48,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:48,592 INFO L87 Difference]: Start difference. First operand 12013 states and 19699 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:52,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:52,337 INFO L93 Difference]: Finished difference Result 38240 states and 62149 transitions. [2022-07-21 07:02:52,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:02:52,338 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:52,424 INFO L225 Difference]: With dead ends: 38240 [2022-07-21 07:02:52,425 INFO L226 Difference]: Without dead ends: 28368 [2022-07-21 07:02:52,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:02:52,467 INFO L413 NwaCegarLoop]: 4834 mSDtfsCounter, 5233 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5250 SdHoareTripleChecker+Valid, 22367 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:52,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5250 Valid, 22367 Invalid, 2879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-21 07:02:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28368 states. [2022-07-21 07:02:53,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28368 to 21903. [2022-07-21 07:02:53,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21903 states, 20228 states have (on average 1.5995649594621317) internal successors, (32356), 20295 states have internal predecessors, (32356), 1225 states have call successors, (1225), 385 states have call predecessors, (1225), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-21 07:02:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21903 states to 21903 states and 35661 transitions. [2022-07-21 07:02:53,685 INFO L78 Accepts]: Start accepts. Automaton has 21903 states and 35661 transitions. Word has length 157 [2022-07-21 07:02:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:53,686 INFO L495 AbstractCegarLoop]: Abstraction has 21903 states and 35661 transitions. [2022-07-21 07:02:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21903 states and 35661 transitions. [2022-07-21 07:02:53,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:53,695 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:53,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:53,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 07:02:53,695 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:53,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:53,696 INFO L85 PathProgramCache]: Analyzing trace with hash -64191730, now seen corresponding path program 1 times [2022-07-21 07:02:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:53,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46103205] [2022-07-21 07:02:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:53,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:53,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46103205] [2022-07-21 07:02:53,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46103205] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:53,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:53,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:53,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641828364] [2022-07-21 07:02:53,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:53,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:53,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:53,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:53,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:53,815 INFO L87 Difference]: Start difference. First operand 21903 states and 35661 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:02:56,200 INFO L93 Difference]: Finished difference Result 48585 states and 79664 transitions. [2022-07-21 07:02:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 07:02:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:02:56,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:02:56,297 INFO L225 Difference]: With dead ends: 48585 [2022-07-21 07:02:56,297 INFO L226 Difference]: Without dead ends: 28821 [2022-07-21 07:02:56,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 07:02:56,342 INFO L413 NwaCegarLoop]: 4508 mSDtfsCounter, 5073 mSDsluCounter, 12536 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5091 SdHoareTripleChecker+Valid, 17044 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 07:02:56,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5091 Valid, 17044 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 07:02:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28821 states. [2022-07-21 07:02:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28821 to 21903. [2022-07-21 07:02:57,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21903 states, 20228 states have (on average 1.5963515918528772) internal successors, (32291), 20295 states have internal predecessors, (32291), 1225 states have call successors, (1225), 385 states have call predecessors, (1225), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-21 07:02:57,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21903 states to 21903 states and 35596 transitions. [2022-07-21 07:02:57,458 INFO L78 Accepts]: Start accepts. Automaton has 21903 states and 35596 transitions. Word has length 157 [2022-07-21 07:02:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:02:57,459 INFO L495 AbstractCegarLoop]: Abstraction has 21903 states and 35596 transitions. [2022-07-21 07:02:57,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:02:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 21903 states and 35596 transitions. [2022-07-21 07:02:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:02:57,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:02:57,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:02:57,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 07:02:57,471 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:02:57,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:02:57,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1012243696, now seen corresponding path program 1 times [2022-07-21 07:02:57,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:02:57,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098790914] [2022-07-21 07:02:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:02:57,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:02:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:02:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:02:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:02:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:02:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:02:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:02:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:02:57,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:02:57,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098790914] [2022-07-21 07:02:57,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098790914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:02:57,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:02:57,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:02:57,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456235374] [2022-07-21 07:02:57,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:02:57,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:02:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:02:57,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:02:57,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:02:57,591 INFO L87 Difference]: Start difference. First operand 21903 states and 35596 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:03:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:03:02,433 INFO L93 Difference]: Finished difference Result 74083 states and 120373 transitions. [2022-07-21 07:03:02,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:03:02,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:03:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:03:02,595 INFO L225 Difference]: With dead ends: 74083 [2022-07-21 07:03:02,596 INFO L226 Difference]: Without dead ends: 54321 [2022-07-21 07:03:02,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:03:02,647 INFO L413 NwaCegarLoop]: 4818 mSDtfsCounter, 5261 mSDsluCounter, 17533 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5278 SdHoareTripleChecker+Valid, 22351 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-21 07:03:02,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5278 Valid, 22351 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-21 07:03:02,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54321 states. [2022-07-21 07:03:05,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54321 to 41872. [2022-07-21 07:03:05,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41872 states, 38533 states have (on average 1.5805154023823735) internal successors, (60902), 38664 states have internal predecessors, (60902), 2441 states have call successors, (2441), 769 states have call predecessors, (2441), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2022-07-21 07:03:05,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41872 states to 41872 states and 68225 transitions. [2022-07-21 07:03:05,246 INFO L78 Accepts]: Start accepts. Automaton has 41872 states and 68225 transitions. Word has length 157 [2022-07-21 07:03:05,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:03:05,247 INFO L495 AbstractCegarLoop]: Abstraction has 41872 states and 68225 transitions. [2022-07-21 07:03:05,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:03:05,247 INFO L276 IsEmpty]: Start isEmpty. Operand 41872 states and 68225 transitions. [2022-07-21 07:03:05,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:03:05,268 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:03:05,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:03:05,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 07:03:05,269 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:03:05,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:03:05,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1446749294, now seen corresponding path program 1 times [2022-07-21 07:03:05,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:03:05,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023649389] [2022-07-21 07:03:05,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:03:05,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:03:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:03:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:03:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:03:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:03:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:03:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:03:05,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:03:05,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023649389] [2022-07-21 07:03:05,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023649389] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:03:05,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:03:05,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:03:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186629386] [2022-07-21 07:03:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:03:05,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:03:05,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:03:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:03:05,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:03:05,366 INFO L87 Difference]: Start difference. First operand 41872 states and 68225 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:03:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:03:15,301 INFO L93 Difference]: Finished difference Result 146022 states and 239430 transitions. [2022-07-21 07:03:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 07:03:15,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:03:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:03:15,968 INFO L225 Difference]: With dead ends: 146022 [2022-07-21 07:03:15,968 INFO L226 Difference]: Without dead ends: 106291 [2022-07-21 07:03:16,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-21 07:03:16,113 INFO L413 NwaCegarLoop]: 4762 mSDtfsCounter, 5287 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5304 SdHoareTripleChecker+Valid, 22220 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-21 07:03:16,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5304 Valid, 22220 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-21 07:03:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106291 states. [2022-07-21 07:03:21,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106291 to 81938. [2022-07-21 07:03:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81938 states, 75271 states have (on average 1.57186698728594) internal successors, (118316), 75530 states have internal predecessors, (118316), 4873 states have call successors, (4873), 1537 states have call predecessors, (4873), 1792 states have return successors, (11944), 5126 states have call predecessors, (11944), 4871 states have call successors, (11944) [2022-07-21 07:03:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81938 states to 81938 states and 135133 transitions. [2022-07-21 07:03:21,871 INFO L78 Accepts]: Start accepts. Automaton has 81938 states and 135133 transitions. Word has length 157 [2022-07-21 07:03:21,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 07:03:21,871 INFO L495 AbstractCegarLoop]: Abstraction has 81938 states and 135133 transitions. [2022-07-21 07:03:21,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:03:21,872 INFO L276 IsEmpty]: Start isEmpty. Operand 81938 states and 135133 transitions. [2022-07-21 07:03:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-07-21 07:03:21,908 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 07:03:21,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 07:03:21,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 07:03:21,908 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 07:03:21,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 07:03:21,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1876407600, now seen corresponding path program 1 times [2022-07-21 07:03:21,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 07:03:21,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834420978] [2022-07-21 07:03:21,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 07:03:21,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 07:03:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:21,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-21 07:03:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 07:03:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 07:03:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 07:03:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:22,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 07:03:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 07:03:22,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 07:03:22,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 07:03:22,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834420978] [2022-07-21 07:03:22,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834420978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 07:03:22,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 07:03:22,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 07:03:22,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673146840] [2022-07-21 07:03:22,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 07:03:22,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 07:03:22,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 07:03:22,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 07:03:22,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 07:03:22,037 INFO L87 Difference]: Start difference. First operand 81938 states and 135133 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 07:03:43,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 07:03:43,864 INFO L93 Difference]: Finished difference Result 328044 states and 541554 transitions. [2022-07-21 07:03:43,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 07:03:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 157 [2022-07-21 07:03:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 07:03:45,184 INFO L225 Difference]: With dead ends: 328044 [2022-07-21 07:03:45,184 INFO L226 Difference]: Without dead ends: 248247 [2022-07-21 07:03:45,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-21 07:03:45,651 INFO L413 NwaCegarLoop]: 4806 mSDtfsCounter, 5671 mSDsluCounter, 17525 mSDsCounter, 0 mSdLazyCounter, 2668 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5699 SdHoareTripleChecker+Valid, 22331 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 2668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 07:03:45,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5699 Valid, 22331 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 2668 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 07:03:45,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248247 states.