./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_label43+token_ring.13.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 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 19:57:19,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 19:57:19,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 19:57:19,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 19:57:19,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 19:57:19,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 19:57:19,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 19:57:19,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 19:57:19,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 19:57:19,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 19:57:19,660 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 19:57:19,662 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 19:57:19,662 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 19:57:19,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 19:57:19,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 19:57:19,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 19:57:19,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 19:57:19,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 19:57:19,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 19:57:19,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 19:57:19,681 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 19:57:19,682 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 19:57:19,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 19:57:19,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 19:57:19,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 19:57:19,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 19:57:19,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 19:57:19,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 19:57:19,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 19:57:19,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 19:57:19,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 19:57:19,690 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 19:57:19,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 19:57:19,692 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 19:57:19,693 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 19:57:19,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 19:57:19,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 19:57:19,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 19:57:19,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 19:57:19,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 19:57:19,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 19:57:19,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 19:57:19,698 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 19:57:19,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 19:57:19,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 19:57:19,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 19:57:19,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 19:57:19,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 19:57:19,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 19:57:19,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 19:57:19,732 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 19:57:19,733 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 19:57:19,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 19:57:19,734 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 19:57:19,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 19:57:19,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 19:57:19,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 19:57:19,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 19:57:19,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 19:57:19,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 19:57:19,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 19:57:19,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 19:57:19,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:57:19,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 19:57:19,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 19:57:19,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 19:57:19,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 19:57:19,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 19:57:19,738 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 19:57:19,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 19:57:19,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 19:57:19,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 787fd4e7c035abcc01b5459445c9a556e2360c9914b85bc4573ad4dc94fc74c0 [2022-07-13 19:57:20,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 19:57:20,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 19:57:20,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 19:57:20,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 19:57:20,038 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 19:57:20,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-07-13 19:57:20,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e4444b/2f5982852f5f43c78595496748441e5d/FLAG4a27f376f [2022-07-13 19:57:20,998 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 19:57:20,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-1.c [2022-07-13 19:57:21,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e4444b/2f5982852f5f43c78595496748441e5d/FLAG4a27f376f [2022-07-13 19:57:21,443 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b7e4444b/2f5982852f5f43c78595496748441e5d [2022-07-13 19:57:21,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 19:57:21,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 19:57:21,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 19:57:21,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 19:57:21,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 19:57:21,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:57:21" (1/1) ... [2022-07-13 19:57:21,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48aeb62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:21, skipping insertion in model container [2022-07-13 19:57:21,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 07:57:21" (1/1) ... [2022-07-13 19:57:21,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 19:57:21,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 19:57:23,294 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_label43+token_ring.13.cil-1.c[381679,381692] [2022-07-13 19:57:23,316 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_label43+token_ring.13.cil-1.c[383339,383352] [2022-07-13 19:57:23,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:57:23,644 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 19:57:24,373 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_label43+token_ring.13.cil-1.c[381679,381692] [2022-07-13 19:57:24,378 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_label43+token_ring.13.cil-1.c[383339,383352] [2022-07-13 19:57:24,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 19:57:24,473 INFO L208 MainTranslator]: Completed translation [2022-07-13 19:57:24,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24 WrapperNode [2022-07-13 19:57:24,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 19:57:24,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 19:57:24,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 19:57:24,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 19:57:24,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:24,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,064 INFO L137 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2022-07-13 19:57:25,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 19:57:25,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 19:57:25,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 19:57:25,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 19:57:25,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 19:57:25,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 19:57:25,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 19:57:25,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 19:57:25,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (1/1) ... [2022-07-13 19:57:25,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 19:57:25,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 19:57:25,673 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) [2022-07-13 19:57:25,723 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 [2022-07-13 19:57:25,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 19:57:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-13 19:57:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-13 19:57:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-13 19:57:25,756 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-13 19:57:25,756 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-13 19:57:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-13 19:57:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-13 19:57:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-13 19:57:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-13 19:57:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-13 19:57:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-13 19:57:25,757 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-13 19:57:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-13 19:57:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-13 19:57:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 19:57:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 19:57:25,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 19:57:25,987 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 19:57:25,988 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 19:57:32,159 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 19:57:32,198 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 19:57:32,199 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-13 19:57:32,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:57:32 BoogieIcfgContainer [2022-07-13 19:57:32,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 19:57:32,205 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 19:57:32,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 19:57:32,208 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 19:57:32,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 07:57:21" (1/3) ... [2022-07-13 19:57:32,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abd984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:57:32, skipping insertion in model container [2022-07-13 19:57:32,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 07:57:24" (2/3) ... [2022-07-13 19:57:32,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abd984e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 07:57:32, skipping insertion in model container [2022-07-13 19:57:32,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 07:57:32" (3/3) ... [2022-07-13 19:57:32,211 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-1.c [2022-07-13 19:57:32,224 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 19:57:32,224 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-13 19:57:32,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 19:57:32,332 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@5cc0f4d3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@10fdd0d8 [2022-07-13 19:57:32,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-13 19:57:32,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-13 19:57:32,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:32,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:32,368 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:32,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:32,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2022-07-13 19:57:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:32,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691810011] [2022-07-13 19:57:32,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:32,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:32,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:32,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691810011] [2022-07-13 19:57:32,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691810011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:32,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:32,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 19:57:32,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833734697] [2022-07-13 19:57:32,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:32,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:57:32,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:57:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:57:33,015 INFO L87 Difference]: Start difference. First operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-13 19:57:34,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:34,952 INFO L93 Difference]: Finished difference Result 5340 states and 9793 transitions. [2022-07-13 19:57:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 19:57:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:34,978 INFO L225 Difference]: With dead ends: 5340 [2022-07-13 19:57:34,978 INFO L226 Difference]: Without dead ends: 2683 [2022-07-13 19:57:34,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 19:57:34,991 INFO L413 NwaCegarLoop]: 4741 mSDtfsCounter, 1121 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 17250 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:34,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 17250 Invalid, 842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:57:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-07-13 19:57:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-07-13 19:57:35,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.824709185720016) internal successors, (4549), 2496 states have internal predecessors, (4549), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-13 19:57:35,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4605 transitions. [2022-07-13 19:57:35,163 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4605 transitions. Word has length 190 [2022-07-13 19:57:35,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:35,164 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4605 transitions. [2022-07-13 19:57:35,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-13 19:57:35,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4605 transitions. [2022-07-13 19:57:35,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:35,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:35,174 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:35,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 19:57:35,175 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:35,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:35,175 INFO L85 PathProgramCache]: Analyzing trace with hash 431579580, now seen corresponding path program 1 times [2022-07-13 19:57:35,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:35,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589130290] [2022-07-13 19:57:35,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:35,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:35,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589130290] [2022-07-13 19:57:35,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589130290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:35,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:35,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-13 19:57:35,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947881050] [2022-07-13 19:57:35,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:35,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 19:57:35,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:35,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 19:57:35,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 19:57:35,368 INFO L87 Difference]: Start difference. First operand 2530 states and 4605 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-13 19:57:37,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:37,131 INFO L93 Difference]: Finished difference Result 3075 states and 5487 transitions. [2022-07-13 19:57:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 19:57:37,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:37,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:37,144 INFO L225 Difference]: With dead ends: 3075 [2022-07-13 19:57:37,145 INFO L226 Difference]: Without dead ends: 2683 [2022-07-13 19:57:37,148 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 [2022-07-13 19:57:37,150 INFO L413 NwaCegarLoop]: 4671 mSDtfsCounter, 1107 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 16977 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:37,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 16977 Invalid, 841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-13 19:57:37,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-07-13 19:57:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-07-13 19:57:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.8243080625752106) internal successors, (4548), 2496 states have internal predecessors, (4548), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-13 19:57:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4604 transitions. [2022-07-13 19:57:37,232 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4604 transitions. Word has length 190 [2022-07-13 19:57:37,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:37,234 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4604 transitions. [2022-07-13 19:57:37,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-13 19:57:37,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4604 transitions. [2022-07-13 19:57:37,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:37,237 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:37,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:37,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 19:57:37,239 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -217013190, now seen corresponding path program 1 times [2022-07-13 19:57:37,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:37,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031636785] [2022-07-13 19:57:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:37,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:37,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:37,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:37,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031636785] [2022-07-13 19:57:37,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031636785] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:37,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:37,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 19:57:37,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209499321] [2022-07-13 19:57:37,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:37,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 19:57:37,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:37,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 19:57:37,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 19:57:37,440 INFO L87 Difference]: Start difference. First operand 2530 states and 4604 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2022-07-13 19:57:40,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:40,610 INFO L93 Difference]: Finished difference Result 3632 states and 6395 transitions. [2022-07-13 19:57:40,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-13 19:57:40,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:40,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:40,629 INFO L225 Difference]: With dead ends: 3632 [2022-07-13 19:57:40,630 INFO L226 Difference]: Without dead ends: 3244 [2022-07-13 19:57:40,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:57:40,634 INFO L413 NwaCegarLoop]: 4727 mSDtfsCounter, 5640 mSDsluCounter, 12917 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5660 SdHoareTripleChecker+Valid, 17644 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:40,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5660 Valid, 17644 Invalid, 2292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 19:57:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-07-13 19:57:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2937. [2022-07-13 19:57:40,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2871 states have (on average 1.79554162312783) internal successors, (5155), 2875 states have internal predecessors, (5155), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-13 19:57:40,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5258 transitions. [2022-07-13 19:57:40,801 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5258 transitions. Word has length 190 [2022-07-13 19:57:40,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:40,801 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5258 transitions. [2022-07-13 19:57:40,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2022-07-13 19:57:40,802 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5258 transitions. [2022-07-13 19:57:40,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:40,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:40,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:40,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 19:57:40,805 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:40,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:40,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2064039626, now seen corresponding path program 1 times [2022-07-13 19:57:40,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:40,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766051439] [2022-07-13 19:57:40,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:40,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:40,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:40,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766051439] [2022-07-13 19:57:40,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766051439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:40,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:40,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:57:40,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142473409] [2022-07-13 19:57:40,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:40,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:57:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:57:40,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:57:40,996 INFO L87 Difference]: Start difference. First operand 2937 states and 5258 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:44,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:44,699 INFO L93 Difference]: Finished difference Result 4620 states and 7998 transitions. [2022-07-13 19:57:44,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:57:44,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:44,718 INFO L225 Difference]: With dead ends: 4620 [2022-07-13 19:57:44,719 INFO L226 Difference]: Without dead ends: 3825 [2022-07-13 19:57:44,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:57:44,724 INFO L413 NwaCegarLoop]: 5060 mSDtfsCounter, 5676 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 22972 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:44,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 22972 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-13 19:57:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-07-13 19:57:44,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3315. [2022-07-13 19:57:44,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3220 states have (on average 1.7714285714285714) internal successors, (5704), 3225 states have internal predecessors, (5704), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-13 19:57:44,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5853 transitions. [2022-07-13 19:57:44,873 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5853 transitions. Word has length 190 [2022-07-13 19:57:44,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:44,874 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5853 transitions. [2022-07-13 19:57:44,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:44,874 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5853 transitions. [2022-07-13 19:57:44,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:44,877 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:44,878 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:44,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 19:57:44,878 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:44,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:44,879 INFO L85 PathProgramCache]: Analyzing trace with hash 307677240, now seen corresponding path program 1 times [2022-07-13 19:57:44,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:44,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201136847] [2022-07-13 19:57:44,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:44,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:44,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:45,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:45,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:45,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:45,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:45,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201136847] [2022-07-13 19:57:45,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201136847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:45,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:45,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:57:45,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878681089] [2022-07-13 19:57:45,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:45,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:57:45,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:45,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:57:45,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:57:45,054 INFO L87 Difference]: Start difference. First operand 3315 states and 5853 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:48,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:48,895 INFO L93 Difference]: Finished difference Result 6076 states and 10341 transitions. [2022-07-13 19:57:48,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:57:48,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:48,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:48,922 INFO L225 Difference]: With dead ends: 6076 [2022-07-13 19:57:48,923 INFO L226 Difference]: Without dead ends: 4903 [2022-07-13 19:57:48,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:57:48,933 INFO L413 NwaCegarLoop]: 5048 mSDtfsCounter, 5670 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3355 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5690 SdHoareTripleChecker+Valid, 22960 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:48,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5690 Valid, 22960 Invalid, 3443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3355 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-13 19:57:48,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2022-07-13 19:57:49,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4075. [2022-07-13 19:57:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3922 states have (on average 1.7361040285568587) internal successors, (6809), 3929 states have internal predecessors, (6809), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-13 19:57:49,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7054 transitions. [2022-07-13 19:57:49,172 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7054 transitions. Word has length 190 [2022-07-13 19:57:49,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:49,172 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7054 transitions. [2022-07-13 19:57:49,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7054 transitions. [2022-07-13 19:57:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:49,178 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:49,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:49,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 19:57:49,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:49,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:49,180 INFO L85 PathProgramCache]: Analyzing trace with hash 806234042, now seen corresponding path program 1 times [2022-07-13 19:57:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:49,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155601592] [2022-07-13 19:57:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:49,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:49,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155601592] [2022-07-13 19:57:49,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155601592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:49,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:49,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:57:49,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640259930] [2022-07-13 19:57:49,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:49,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:57:49,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:49,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:57:49,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:57:49,380 INFO L87 Difference]: Start difference. First operand 4075 states and 7054 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:53,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:53,025 INFO L93 Difference]: Finished difference Result 8882 states and 14826 transitions. [2022-07-13 19:57:53,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:57:53,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:53,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:53,058 INFO L225 Difference]: With dead ends: 8882 [2022-07-13 19:57:53,059 INFO L226 Difference]: Without dead ends: 6949 [2022-07-13 19:57:53,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:57:53,070 INFO L413 NwaCegarLoop]: 5043 mSDtfsCounter, 5669 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 22955 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:53,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5689 Valid, 22955 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 19:57:53,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-07-13 19:57:53,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 5596. [2022-07-13 19:57:53,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5327 states have (on average 1.6930730242162568) internal successors, (9019), 5338 states have internal predecessors, (9019), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-13 19:57:53,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9462 transitions. [2022-07-13 19:57:53,391 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9462 transitions. Word has length 190 [2022-07-13 19:57:53,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:53,391 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9462 transitions. [2022-07-13 19:57:53,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:53,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9462 transitions. [2022-07-13 19:57:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:53,396 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:53,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:53,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-13 19:57:53,397 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:53,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1376505848, now seen corresponding path program 1 times [2022-07-13 19:57:53,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:53,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014404053] [2022-07-13 19:57:53,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:53,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:53,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:53,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014404053] [2022-07-13 19:57:53,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014404053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:53,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:53,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:57:53,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677295869] [2022-07-13 19:57:53,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:53,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:57:53,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:53,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:57:53,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:57:53,573 INFO L87 Difference]: Start difference. First operand 5596 states and 9462 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:57,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:57:57,430 INFO L93 Difference]: Finished difference Result 14493 states and 23812 transitions. [2022-07-13 19:57:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:57:57,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:57:57,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:57:57,474 INFO L225 Difference]: With dead ends: 14493 [2022-07-13 19:57:57,474 INFO L226 Difference]: Without dead ends: 11039 [2022-07-13 19:57:57,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:57:57,492 INFO L413 NwaCegarLoop]: 5038 mSDtfsCounter, 5668 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5688 SdHoareTripleChecker+Valid, 22950 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:57:57,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5688 Valid, 22950 Invalid, 3427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 19:57:57,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-07-13 19:57:58,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 8645. [2022-07-13 19:57:58,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8645 states, 8144 states have (on average 1.6513998035363457) internal successors, (13449), 8163 states have internal predecessors, (13449), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-13 19:57:58,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8645 states to 8645 states and 14306 transitions. [2022-07-13 19:57:58,072 INFO L78 Accepts]: Start accepts. Automaton has 8645 states and 14306 transitions. Word has length 190 [2022-07-13 19:57:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:57:58,073 INFO L495 AbstractCegarLoop]: Abstraction has 8645 states and 14306 transitions. [2022-07-13 19:57:58,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:57:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand 8645 states and 14306 transitions. [2022-07-13 19:57:58,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:57:58,080 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:57:58,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:57:58,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-13 19:57:58,081 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:57:58,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:57:58,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1514592262, now seen corresponding path program 1 times [2022-07-13 19:57:58,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:57:58,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348325610] [2022-07-13 19:57:58,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:57:58,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:57:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:57:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:57:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:57:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:57:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:57:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:57:58,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:57:58,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:57:58,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348325610] [2022-07-13 19:57:58,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348325610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:57:58,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:57:58,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:57:58,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703895939] [2022-07-13 19:57:58,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:57:58,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:57:58,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:57:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:57:58,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:57:58,262 INFO L87 Difference]: Start difference. First operand 8645 states and 14306 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:02,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:02,545 INFO L93 Difference]: Finished difference Result 25716 states and 41846 transitions. [2022-07-13 19:58:02,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:58:02,545 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:02,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:58:02,619 INFO L225 Difference]: With dead ends: 25716 [2022-07-13 19:58:02,620 INFO L226 Difference]: Without dead ends: 19213 [2022-07-13 19:58:02,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:58:02,654 INFO L413 NwaCegarLoop]: 4762 mSDtfsCounter, 5779 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5799 SdHoareTripleChecker+Valid, 21954 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:58:02,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5799 Valid, 21954 Invalid, 3094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [130 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 19:58:02,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19213 states. [2022-07-13 19:58:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19213 to 14758. [2022-07-13 19:58:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6190096425723193) internal successors, (22331), 13828 states have internal predecessors, (22331), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-13 19:58:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24070 transitions. [2022-07-13 19:58:03,752 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24070 transitions. Word has length 190 [2022-07-13 19:58:03,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:58:03,752 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24070 transitions. [2022-07-13 19:58:03,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24070 transitions. [2022-07-13 19:58:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:58:03,761 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:58:03,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:58:03,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-13 19:58:03,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:58:03,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:58:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1994377144, now seen corresponding path program 1 times [2022-07-13 19:58:03,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:58:03,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512936260] [2022-07-13 19:58:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:58:03,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:58:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:58:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:58:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:58:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:58:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:58:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:58:03,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:58:03,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512936260] [2022-07-13 19:58:03,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512936260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:58:03,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:58:03,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:58:03,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630195111] [2022-07-13 19:58:03,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:58:03,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:58:03,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:58:03,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:58:03,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:58:03,947 INFO L87 Difference]: Start difference. First operand 14758 states and 24070 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:07,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:07,145 INFO L93 Difference]: Finished difference Result 32108 states and 52373 transitions. [2022-07-13 19:58:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:58:07,145 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:58:07,211 INFO L225 Difference]: With dead ends: 32108 [2022-07-13 19:58:07,211 INFO L226 Difference]: Without dead ends: 19492 [2022-07-13 19:58:07,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:58:07,264 INFO L413 NwaCegarLoop]: 4649 mSDtfsCounter, 5175 mSDsluCounter, 16860 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 21509 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:58:07,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 21509 Invalid, 1679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-13 19:58:07,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2022-07-13 19:58:08,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 14758. [2022-07-13 19:58:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6166171246284347) internal successors, (22298), 13828 states have internal predecessors, (22298), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-13 19:58:08,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24037 transitions. [2022-07-13 19:58:08,248 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24037 transitions. Word has length 190 [2022-07-13 19:58:08,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:58:08,249 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24037 transitions. [2022-07-13 19:58:08,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:08,249 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24037 transitions. [2022-07-13 19:58:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:58:08,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:58:08,259 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:58:08,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 19:58:08,259 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:58:08,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:58:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1633208262, now seen corresponding path program 1 times [2022-07-13 19:58:08,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:58:08,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400420259] [2022-07-13 19:58:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:58:08,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:58:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:58:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:58:08,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:58:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:58:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:58:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:08,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:58:08,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:58:08,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400420259] [2022-07-13 19:58:08,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400420259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:58:08,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:58:08,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:58:08,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688160542] [2022-07-13 19:58:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:58:08,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:58:08,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:58:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:58:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:58:08,441 INFO L87 Difference]: Start difference. First operand 14758 states and 24037 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:14,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:14,265 INFO L93 Difference]: Finished difference Result 48129 states and 77876 transitions. [2022-07-13 19:58:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:58:14,266 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:14,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:58:14,371 INFO L225 Difference]: With dead ends: 48129 [2022-07-13 19:58:14,371 INFO L226 Difference]: Without dead ends: 35513 [2022-07-13 19:58:14,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:58:14,403 INFO L413 NwaCegarLoop]: 5022 mSDtfsCounter, 5659 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3304 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5679 SdHoareTripleChecker+Valid, 22934 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-13 19:58:14,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5679 Valid, 22934 Invalid, 3392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3304 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-13 19:58:14,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35513 states. [2022-07-13 19:58:16,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35513 to 27048. [2022-07-13 19:58:16,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27048 states, 25155 states have (on average 1.5945140131186644) internal successors, (40110), 25222 states have internal predecessors, (40110), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-13 19:58:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27048 states to 27048 states and 43775 transitions. [2022-07-13 19:58:16,546 INFO L78 Accepts]: Start accepts. Automaton has 27048 states and 43775 transitions. Word has length 190 [2022-07-13 19:58:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:58:16,547 INFO L495 AbstractCegarLoop]: Abstraction has 27048 states and 43775 transitions. [2022-07-13 19:58:16,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:16,547 INFO L276 IsEmpty]: Start isEmpty. Operand 27048 states and 43775 transitions. [2022-07-13 19:58:16,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:58:16,565 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:58:16,565 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:58:16,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-13 19:58:16,566 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:58:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:58:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash 466530168, now seen corresponding path program 1 times [2022-07-13 19:58:16,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:58:16,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449853847] [2022-07-13 19:58:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:58:16,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:58:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:58:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:58:16,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:58:16,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:58:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:58:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:16,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:58:16,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:58:16,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449853847] [2022-07-13 19:58:16,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449853847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:58:16,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:58:16,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:58:16,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875588072] [2022-07-13 19:58:16,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:58:16,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:58:16,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:58:16,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:58:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:58:16,743 INFO L87 Difference]: Start difference. First operand 27048 states and 43775 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:25,696 INFO L93 Difference]: Finished difference Result 93025 states and 150812 transitions. [2022-07-13 19:58:25,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:58:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:58:25,998 INFO L225 Difference]: With dead ends: 93025 [2022-07-13 19:58:25,998 INFO L226 Difference]: Without dead ends: 68119 [2022-07-13 19:58:26,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:58:26,105 INFO L413 NwaCegarLoop]: 5015 mSDtfsCounter, 5661 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 22927 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-13 19:58:26,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5681 Valid, 22927 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-13 19:58:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68119 states. [2022-07-13 19:58:30,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68119 to 51689. [2022-07-13 19:58:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5816437213183145) internal successors, (75824), 48071 states have internal predecessors, (75824), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-13 19:58:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83827 transitions. [2022-07-13 19:58:30,328 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83827 transitions. Word has length 190 [2022-07-13 19:58:30,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:58:30,329 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83827 transitions. [2022-07-13 19:58:30,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83827 transitions. [2022-07-13 19:58:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:58:30,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:58:30,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:58:30,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-13 19:58:30,358 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:58:30,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:58:30,359 INFO L85 PathProgramCache]: Analyzing trace with hash 811358330, now seen corresponding path program 1 times [2022-07-13 19:58:30,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:58:30,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083654200] [2022-07-13 19:58:30,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:58:30,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:58:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:58:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:58:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:58:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:58:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:58:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:58:30,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:58:30,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083654200] [2022-07-13 19:58:30,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083654200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:58:30,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:58:30,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:58:30,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81480604] [2022-07-13 19:58:30,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:58:30,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:58:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:58:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:58:30,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:58:30,521 INFO L87 Difference]: Start difference. First operand 51689 states and 83827 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:38,599 INFO L93 Difference]: Finished difference Result 118634 states and 194806 transitions. [2022-07-13 19:58:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-13 19:58:38,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:58:38,904 INFO L225 Difference]: With dead ends: 118634 [2022-07-13 19:58:38,904 INFO L226 Difference]: Without dead ends: 69087 [2022-07-13 19:58:39,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-13 19:58:39,038 INFO L413 NwaCegarLoop]: 4635 mSDtfsCounter, 5355 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5376 SdHoareTripleChecker+Valid, 17322 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 19:58:39,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5376 Valid, 17322 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 19:58:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69087 states. [2022-07-13 19:58:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69087 to 51689. [2022-07-13 19:58:43,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5789528577388403) internal successors, (75695), 48071 states have internal predecessors, (75695), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-13 19:58:43,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83698 transitions. [2022-07-13 19:58:43,493 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83698 transitions. Word has length 190 [2022-07-13 19:58:43,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:58:43,493 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83698 transitions. [2022-07-13 19:58:43,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:43,494 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83698 transitions. [2022-07-13 19:58:43,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:58:43,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:58:43,524 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:58:43,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-13 19:58:43,524 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:58:43,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:58:43,525 INFO L85 PathProgramCache]: Analyzing trace with hash -958113284, now seen corresponding path program 1 times [2022-07-13 19:58:43,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:58:43,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314379784] [2022-07-13 19:58:43,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:58:43,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:58:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:58:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:58:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:58:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:58:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:58:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:58:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:58:43,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:58:43,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314379784] [2022-07-13 19:58:43,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314379784] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:58:43,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:58:43,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:58:43,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589442912] [2022-07-13 19:58:43,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:58:43,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:58:43,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:58:43,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:58:43,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:58:43,698 INFO L87 Difference]: Start difference. First operand 51689 states and 83698 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:58:59,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 19:58:59,943 INFO L93 Difference]: Finished difference Result 182556 states and 297366 transitions. [2022-07-13 19:58:59,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-13 19:58:59,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 190 [2022-07-13 19:58:59,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 19:59:00,723 INFO L225 Difference]: With dead ends: 182556 [2022-07-13 19:59:00,724 INFO L226 Difference]: Without dead ends: 133009 [2022-07-13 19:59:00,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-13 19:59:00,841 INFO L413 NwaCegarLoop]: 5000 mSDtfsCounter, 5649 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5669 SdHoareTripleChecker+Valid, 22912 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-13 19:59:00,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5669 Valid, 22912 Invalid, 3347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-13 19:59:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133009 states. [2022-07-13 19:59:09,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133009 to 101356. [2022-07-13 19:59:09,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101356 states, 93895 states have (on average 1.5716811331806806) internal successors, (147573), 94154 states have internal predecessors, (147573), 5661 states have call successors, (5661), 1543 states have call predecessors, (5661), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-13 19:59:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101356 states to 101356 states and 165710 transitions. [2022-07-13 19:59:10,256 INFO L78 Accepts]: Start accepts. Automaton has 101356 states and 165710 transitions. Word has length 190 [2022-07-13 19:59:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 19:59:10,257 INFO L495 AbstractCegarLoop]: Abstraction has 101356 states and 165710 transitions. [2022-07-13 19:59:10,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-13 19:59:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 101356 states and 165710 transitions. [2022-07-13 19:59:10,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-13 19:59:10,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 19:59:10,309 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 19:59:10,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 19:59:10,309 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 19:59:10,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 19:59:10,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1569382342, now seen corresponding path program 1 times [2022-07-13 19:59:10,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 19:59:10,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170926536] [2022-07-13 19:59:10,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 19:59:10,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 19:59:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-13 19:59:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 19:59:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-13 19:59:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-13 19:59:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-13 19:59:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 19:59:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 19:59:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 19:59:10,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170926536] [2022-07-13 19:59:10,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170926536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 19:59:10,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 19:59:10,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-13 19:59:10,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723806817] [2022-07-13 19:59:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 19:59:10,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-13 19:59:10,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 19:59:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-13 19:59:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-13 19:59:10,459 INFO L87 Difference]: Start difference. First operand 101356 states and 165710 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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)