./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i -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 --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 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:23:39,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:23:39,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:23:39,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:23:39,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:23:39,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:23:39,860 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:23:39,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:23:39,861 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:23:39,862 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:23:39,864 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:23:39,864 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:23:39,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:23:39,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:23:39,869 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:23:39,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:23:39,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:23:39,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:23:39,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:23:39,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:23:39,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:23:39,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:23:39,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:23:39,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:23:39,876 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:23:39,876 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:23:39,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:23:39,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:23:39,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:23:39,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:23:39,881 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:23:39,881 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:23:39,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:23:39,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:23:39,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:23:39,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:23:39,883 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:23:39,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:23:39,883 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:23:39,883 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:23:39,883 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:23:39,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:23:39,885 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c6e745fb3369f6d50167657c14f10731407b128ae2baded15d3743683fdbf24 [2024-10-13 06:23:40,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:23:40,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:23:40,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:23:40,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:23:40,192 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:23:40,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-10-13 06:23:41,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:23:42,099 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:23:42,100 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i [2024-10-13 06:23:42,110 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652e54370/ec8a701147ec40fa9f5f924bea9939fa/FLAGb0f50ab98 [2024-10-13 06:23:42,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/652e54370/ec8a701147ec40fa9f5f924bea9939fa [2024-10-13 06:23:42,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:23:42,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:23:42,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:23:42,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:23:42,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:23:42,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ba2d01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42, skipping insertion in model container [2024-10-13 06:23:42,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,175 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:23:42,359 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-10-13 06:23:42,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:23:42,451 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:23:42,465 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-90.i[916,929] [2024-10-13 06:23:42,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:23:42,548 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:23:42,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42 WrapperNode [2024-10-13 06:23:42,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:23:42,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:23:42,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:23:42,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:23:42,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,632 INFO L138 Inliner]: procedures = 26, calls = 176, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 506 [2024-10-13 06:23:42,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:23:42,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:23:42,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:23:42,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:23:42,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,703 INFO L175 MemorySlicer]: Split 130 memory accesses to 16 slices as follows [2, 3, 6, 16, 8, 12, 13, 8, 14, 8, 6, 8, 6, 4, 12, 4]. 12 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 19 writes are split as follows [0, 1, 1, 1, 1, 1, 4, 1, 1, 2, 1, 1, 1, 1, 1, 1]. [2024-10-13 06:23:42,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,732 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:23:42,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:23:42,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:23:42,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:23:42,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (1/1) ... [2024-10-13 06:23:42,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:23:42,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:23:42,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:23:42,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:23:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:23:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:23:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:23:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:23:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:23:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:23:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 06:23:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 06:23:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 06:23:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-13 06:23:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-13 06:23:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-13 06:23:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-13 06:23:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-13 06:23:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-13 06:23:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-13 06:23:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-13 06:23:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:23:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-13 06:23:42,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-13 06:23:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-13 06:23:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-13 06:23:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-13 06:23:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-13 06:23:42,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-13 06:23:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-13 06:23:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:23:42,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:23:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:23:42,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 06:23:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-13 06:23:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-13 06:23:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-13 06:23:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-13 06:23:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:23:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:23:43,053 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:23:43,055 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:23:43,757 INFO L? ?]: Removed 112 outVars from TransFormulas that were not future-live. [2024-10-13 06:23:43,758 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:23:43,807 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:23:43,810 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:23:43,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:23:43 BoogieIcfgContainer [2024-10-13 06:23:43,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:23:43,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:23:43,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:23:43,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:23:43,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:23:42" (1/3) ... [2024-10-13 06:23:43,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ce32d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:23:43, skipping insertion in model container [2024-10-13 06:23:43,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:23:42" (2/3) ... [2024-10-13 06:23:43,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ce32d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:23:43, skipping insertion in model container [2024-10-13 06:23:43,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:23:43" (3/3) ... [2024-10-13 06:23:43,820 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-90.i [2024-10-13 06:23:43,841 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:23:43,841 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:23:43,919 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:23:43,926 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@634d8008, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:23:43,926 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:23:43,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:43,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:23:43,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:43,954 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:43,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:43,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1750151490, now seen corresponding path program 1 times [2024-10-13 06:23:43,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:43,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91919610] [2024-10-13 06:23:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:43,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:44,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:44,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:44,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:44,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:44,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91919610] [2024-10-13 06:23:44,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91919610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:44,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:44,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:23:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535626475] [2024-10-13 06:23:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:44,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:23:44,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:44,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:23:44,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:23:44,576 INFO L87 Difference]: Start difference. First operand has 104 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 82 states have internal predecessors, (114), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-13 06:23:44,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:44,646 INFO L93 Difference]: Finished difference Result 205 states and 326 transitions. [2024-10-13 06:23:44,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:23:44,649 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2024-10-13 06:23:44,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:44,659 INFO L225 Difference]: With dead ends: 205 [2024-10-13 06:23:44,661 INFO L226 Difference]: Without dead ends: 102 [2024-10-13 06:23:44,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:23:44,670 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:44,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:23:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-10-13 06:23:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-10-13 06:23:44,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3625) internal successors, (109), 80 states have internal predecessors, (109), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 149 transitions. [2024-10-13 06:23:44,728 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 149 transitions. Word has length 148 [2024-10-13 06:23:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:44,728 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 149 transitions. [2024-10-13 06:23:44,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-13 06:23:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 149 transitions. [2024-10-13 06:23:44,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:23:44,735 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:44,735 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:44,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:23:44,736 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:44,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash -305656682, now seen corresponding path program 1 times [2024-10-13 06:23:44,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:44,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533974367] [2024-10-13 06:23:44,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:44,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:45,419 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:45,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:45,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533974367] [2024-10-13 06:23:45,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533974367] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:45,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:45,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:23:45,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294827162] [2024-10-13 06:23:45,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:45,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:23:45,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:45,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:23:45,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:23:45,432 INFO L87 Difference]: Start difference. First operand 102 states and 149 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:45,516 INFO L93 Difference]: Finished difference Result 205 states and 300 transitions. [2024-10-13 06:23:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:23:45,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2024-10-13 06:23:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:45,519 INFO L225 Difference]: With dead ends: 205 [2024-10-13 06:23:45,519 INFO L226 Difference]: Without dead ends: 104 [2024-10-13 06:23:45,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:23:45,525 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 0 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:45,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:45,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-13 06:23:45,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-13 06:23:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.353658536585366) internal successors, (111), 82 states have internal predecessors, (111), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 151 transitions. [2024-10-13 06:23:45,552 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 151 transitions. Word has length 148 [2024-10-13 06:23:45,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:45,554 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 151 transitions. [2024-10-13 06:23:45,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:45,557 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 151 transitions. [2024-10-13 06:23:45,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:23:45,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:45,562 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:45,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:23:45,562 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:45,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:45,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1329203845, now seen corresponding path program 1 times [2024-10-13 06:23:45,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:45,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051668524] [2024-10-13 06:23:45,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:45,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:46,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:46,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:46,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:46,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051668524] [2024-10-13 06:23:46,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051668524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:46,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:46,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:23:46,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873181573] [2024-10-13 06:23:46,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:46,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:23:46,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:46,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:23:46,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:23:46,206 INFO L87 Difference]: Start difference. First operand 104 states and 151 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:46,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:46,378 INFO L93 Difference]: Finished difference Result 312 states and 453 transitions. [2024-10-13 06:23:46,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:46,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-13 06:23:46,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:46,384 INFO L225 Difference]: With dead ends: 312 [2024-10-13 06:23:46,384 INFO L226 Difference]: Without dead ends: 209 [2024-10-13 06:23:46,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:23:46,389 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 143 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:46,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 949 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-10-13 06:23:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 109. [2024-10-13 06:23:46,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 87 states have (on average 1.3448275862068966) internal successors, (117), 87 states have internal predecessors, (117), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 157 transitions. [2024-10-13 06:23:46,415 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 157 transitions. Word has length 150 [2024-10-13 06:23:46,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:46,419 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 157 transitions. [2024-10-13 06:23:46,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:46,420 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 157 transitions. [2024-10-13 06:23:46,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:23:46,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:46,425 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:46,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:23:46,426 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:46,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:46,426 INFO L85 PathProgramCache]: Analyzing trace with hash -906502019, now seen corresponding path program 1 times [2024-10-13 06:23:46,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:46,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735322176] [2024-10-13 06:23:46,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:46,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:47,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:47,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:47,237 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:47,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:47,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735322176] [2024-10-13 06:23:47,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735322176] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:47,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:47,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:23:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110376090] [2024-10-13 06:23:47,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:47,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:23:47,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:47,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:23:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:47,241 INFO L87 Difference]: Start difference. First operand 109 states and 157 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:47,577 INFO L93 Difference]: Finished difference Result 311 states and 449 transitions. [2024-10-13 06:23:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:47,578 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-10-13 06:23:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:47,580 INFO L225 Difference]: With dead ends: 311 [2024-10-13 06:23:47,580 INFO L226 Difference]: Without dead ends: 203 [2024-10-13 06:23:47,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:23:47,585 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 367 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:47,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 464 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:23:47,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-13 06:23:47,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 111. [2024-10-13 06:23:47,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 89 states have internal predecessors, (119), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2024-10-13 06:23:47,612 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 150 [2024-10-13 06:23:47,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:47,613 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2024-10-13 06:23:47,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2024-10-13 06:23:47,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-13 06:23:47,617 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:47,617 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:47,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:23:47,621 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:47,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash -576930377, now seen corresponding path program 1 times [2024-10-13 06:23:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:47,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421971965] [2024-10-13 06:23:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:48,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:48,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:48,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:48,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421971965] [2024-10-13 06:23:48,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421971965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:48,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:48,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:23:48,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874890985] [2024-10-13 06:23:48,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:48,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:23:48,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:48,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:23:48,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:23:48,684 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:48,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:48,869 INFO L93 Difference]: Finished difference Result 228 states and 324 transitions. [2024-10-13 06:23:48,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:23:48,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2024-10-13 06:23:48,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:48,874 INFO L225 Difference]: With dead ends: 228 [2024-10-13 06:23:48,874 INFO L226 Difference]: Without dead ends: 118 [2024-10-13 06:23:48,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:23:48,876 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 110 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:48,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 691 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:48,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-13 06:23:48,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-13 06:23:48,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3157894736842106) internal successors, (125), 95 states have internal predecessors, (125), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-13 06:23:48,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 165 transitions. [2024-10-13 06:23:48,902 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 165 transitions. Word has length 151 [2024-10-13 06:23:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:48,903 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 165 transitions. [2024-10-13 06:23:48,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:48,903 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 165 transitions. [2024-10-13 06:23:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:23:48,905 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:48,905 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:48,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:23:48,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:48,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:48,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1156097376, now seen corresponding path program 1 times [2024-10-13 06:23:48,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:48,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906666752] [2024-10-13 06:23:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:48,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:48,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:49,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-13 06:23:49,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:49,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906666752] [2024-10-13 06:23:49,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906666752] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:23:49,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291755703] [2024-10-13 06:23:49,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:49,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:23:49,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:23:49,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:23:49,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 06:23:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:50,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-13 06:23:50,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:23:50,496 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:23:50,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 59 [2024-10-13 06:23:50,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-10-13 06:23:50,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2024-10-13 06:23:50,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 53 [2024-10-13 06:23:51,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 39 [2024-10-13 06:23:51,210 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-10-13 06:23:51,210 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:23:51,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-10-13 06:23:51,519 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:23:51,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-10-13 06:23:51,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 54 [2024-10-13 06:23:51,592 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-13 06:23:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:51,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291755703] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 06:23:51,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:23:51,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 15] total 28 [2024-10-13 06:23:51,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46649920] [2024-10-13 06:23:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:51,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:23:51,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:51,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:23:51,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2024-10-13 06:23:51,708 INFO L87 Difference]: Start difference. First operand 118 states and 165 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:52,081 INFO L93 Difference]: Finished difference Result 289 states and 401 transitions. [2024-10-13 06:23:52,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:23:52,082 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-13 06:23:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:52,084 INFO L225 Difference]: With dead ends: 289 [2024-10-13 06:23:52,084 INFO L226 Difference]: Without dead ends: 172 [2024-10-13 06:23:52,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 323 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2024-10-13 06:23:52,088 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 65 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:52,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1089 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:23:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-10-13 06:23:52,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 167. [2024-10-13 06:23:52,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 141 states have (on average 1.3333333333333333) internal successors, (188), 142 states have internal predecessors, (188), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-13 06:23:52,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 232 transitions. [2024-10-13 06:23:52,102 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 232 transitions. Word has length 152 [2024-10-13 06:23:52,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:52,103 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 232 transitions. [2024-10-13 06:23:52,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:52,103 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 232 transitions. [2024-10-13 06:23:52,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:23:52,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:52,105 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:52,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 06:23:52,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 06:23:52,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:52,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:52,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1742903390, now seen corresponding path program 1 times [2024-10-13 06:23:52,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:52,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501748222] [2024-10-13 06:23:52,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:52,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:52,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:52,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:52,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:52,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:52,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501748222] [2024-10-13 06:23:52,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501748222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:52,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:52,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:23:52,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394218917] [2024-10-13 06:23:52,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:52,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:23:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:23:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:52,832 INFO L87 Difference]: Start difference. First operand 167 states and 232 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:52,981 INFO L93 Difference]: Finished difference Result 341 states and 470 transitions. [2024-10-13 06:23:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:52,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-13 06:23:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:52,985 INFO L225 Difference]: With dead ends: 341 [2024-10-13 06:23:52,985 INFO L226 Difference]: Without dead ends: 175 [2024-10-13 06:23:52,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:23:52,987 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 58 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:52,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 797 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-13 06:23:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 164. [2024-10-13 06:23:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.326086956521739) internal successors, (183), 139 states have internal predecessors, (183), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-13 06:23:53,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 227 transitions. [2024-10-13 06:23:53,004 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 227 transitions. Word has length 152 [2024-10-13 06:23:53,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:53,005 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 227 transitions. [2024-10-13 06:23:53,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:53,005 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 227 transitions. [2024-10-13 06:23:53,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:23:53,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:53,007 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:53,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:23:53,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:53,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:53,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1550522018, now seen corresponding path program 1 times [2024-10-13 06:23:53,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:53,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465686057] [2024-10-13 06:23:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:53,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:53,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:53,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:53,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:53,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:53,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465686057] [2024-10-13 06:23:53,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465686057] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:53,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:53,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:23:53,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419701356] [2024-10-13 06:23:53,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:53,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:23:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:53,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:23:53,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:53,491 INFO L87 Difference]: Start difference. First operand 164 states and 227 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:53,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:53,636 INFO L93 Difference]: Finished difference Result 371 states and 511 transitions. [2024-10-13 06:23:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:53,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-13 06:23:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:53,639 INFO L225 Difference]: With dead ends: 371 [2024-10-13 06:23:53,639 INFO L226 Difference]: Without dead ends: 208 [2024-10-13 06:23:53,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:23:53,640 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 59 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:53,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 762 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:53,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-10-13 06:23:53,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 164. [2024-10-13 06:23:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 138 states have (on average 1.318840579710145) internal successors, (182), 139 states have internal predecessors, (182), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-13 06:23:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 226 transitions. [2024-10-13 06:23:53,654 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 226 transitions. Word has length 152 [2024-10-13 06:23:53,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:53,654 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 226 transitions. [2024-10-13 06:23:53,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:53,655 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 226 transitions. [2024-10-13 06:23:53,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:23:53,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:53,657 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:53,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:23:53,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:53,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:53,658 INFO L85 PathProgramCache]: Analyzing trace with hash 963716004, now seen corresponding path program 1 times [2024-10-13 06:23:53,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:53,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830510050] [2024-10-13 06:23:53,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:53,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:54,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,348 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-13 06:23:54,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830510050] [2024-10-13 06:23:54,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830510050] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:23:54,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527114875] [2024-10-13 06:23:54,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:54,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:23:54,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:23:54,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:23:54,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 06:23:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:54,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-10-13 06:23:54,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:23:54,816 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-13 06:23:54,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 51 [2024-10-13 06:23:54,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2024-10-13 06:23:54,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2024-10-13 06:23:54,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 45 [2024-10-13 06:23:54,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2024-10-13 06:23:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-13 06:23:55,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:23:55,249 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-10-13 06:23:55,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:23:55,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 49 [2024-10-13 06:23:55,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 36 [2024-10-13 06:23:55,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-13 06:23:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:55,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527114875] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 06:23:55,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:23:55,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 12] total 22 [2024-10-13 06:23:55,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776023744] [2024-10-13 06:23:55,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:55,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:23:55,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:55,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:23:55,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2024-10-13 06:23:55,435 INFO L87 Difference]: Start difference. First operand 164 states and 226 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:55,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:55,799 INFO L93 Difference]: Finished difference Result 385 states and 526 transitions. [2024-10-13 06:23:55,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:23:55,800 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2024-10-13 06:23:55,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:55,806 INFO L225 Difference]: With dead ends: 385 [2024-10-13 06:23:55,806 INFO L226 Difference]: Without dead ends: 222 [2024-10-13 06:23:55,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 329 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2024-10-13 06:23:55,808 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 71 mSDsluCounter, 1092 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:55,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1296 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:23:55,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-10-13 06:23:55,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 215. [2024-10-13 06:23:55,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 181 states have (on average 1.3149171270718232) internal successors, (238), 183 states have internal predecessors, (238), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:23:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 294 transitions. [2024-10-13 06:23:55,833 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 294 transitions. Word has length 152 [2024-10-13 06:23:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:55,833 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 294 transitions. [2024-10-13 06:23:55,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 294 transitions. [2024-10-13 06:23:55,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-13 06:23:55,836 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:55,836 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:55,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 06:23:56,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-13 06:23:56,041 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:56,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:56,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1738577047, now seen corresponding path program 1 times [2024-10-13 06:23:56,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:56,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360938087] [2024-10-13 06:23:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:56,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:56,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:56,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:56,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,252 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:56,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:56,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360938087] [2024-10-13 06:23:56,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360938087] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:56,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:56,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:23:56,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361153961] [2024-10-13 06:23:56,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:56,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:23:56,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:56,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:23:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:56,255 INFO L87 Difference]: Start difference. First operand 215 states and 294 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:56,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:56,383 INFO L93 Difference]: Finished difference Result 569 states and 783 transitions. [2024-10-13 06:23:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:56,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-13 06:23:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:56,386 INFO L225 Difference]: With dead ends: 569 [2024-10-13 06:23:56,386 INFO L226 Difference]: Without dead ends: 355 [2024-10-13 06:23:56,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:23:56,387 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 61 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:56,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 631 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:56,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-13 06:23:56,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 260. [2024-10-13 06:23:56,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 226 states have (on average 1.3185840707964602) internal successors, (298), 228 states have internal predecessors, (298), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:23:56,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2024-10-13 06:23:56,410 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 153 [2024-10-13 06:23:56,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:56,411 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2024-10-13 06:23:56,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:56,411 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2024-10-13 06:23:56,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-13 06:23:56,415 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:56,415 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:56,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 06:23:56,415 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:56,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:56,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1545272999, now seen corresponding path program 1 times [2024-10-13 06:23:56,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:56,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573366428] [2024-10-13 06:23:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:56,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:56,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:56,683 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:56,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:56,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573366428] [2024-10-13 06:23:56,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573366428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:56,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:56,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:23:56,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030630446] [2024-10-13 06:23:56,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:56,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:23:56,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:56,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:23:56,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:23:56,687 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:56,799 INFO L93 Difference]: Finished difference Result 679 states and 924 transitions. [2024-10-13 06:23:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:23:56,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-13 06:23:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:56,803 INFO L225 Difference]: With dead ends: 679 [2024-10-13 06:23:56,803 INFO L226 Difference]: Without dead ends: 420 [2024-10-13 06:23:56,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:56,806 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 74 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:56,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 579 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:56,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-13 06:23:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 295. [2024-10-13 06:23:56,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 261 states have (on average 1.314176245210728) internal successors, (343), 263 states have internal predecessors, (343), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (28), 26 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-13 06:23:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 399 transitions. [2024-10-13 06:23:56,828 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 399 transitions. Word has length 153 [2024-10-13 06:23:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:56,829 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 399 transitions. [2024-10-13 06:23:56,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:56,829 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 399 transitions. [2024-10-13 06:23:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-13 06:23:56,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:56,831 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:56,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 06:23:56,831 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:56,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:56,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1036977173, now seen corresponding path program 1 times [2024-10-13 06:23:56,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:56,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142802180] [2024-10-13 06:23:56,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:56,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:57,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:57,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:57,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:57,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:57,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:57,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142802180] [2024-10-13 06:23:57,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142802180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:57,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:57,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:23:57,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920970794] [2024-10-13 06:23:57,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:57,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:23:57,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:57,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:23:57,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:23:57,110 INFO L87 Difference]: Start difference. First operand 295 states and 399 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:57,236 INFO L93 Difference]: Finished difference Result 673 states and 907 transitions. [2024-10-13 06:23:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:23:57,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-13 06:23:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:57,239 INFO L225 Difference]: With dead ends: 673 [2024-10-13 06:23:57,239 INFO L226 Difference]: Without dead ends: 379 [2024-10-13 06:23:57,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:57,242 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 74 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:57,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 666 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-10-13 06:23:57,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 258. [2024-10-13 06:23:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 226 states have (on average 1.2920353982300885) internal successors, (292), 227 states have internal predecessors, (292), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-13 06:23:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 344 transitions. [2024-10-13 06:23:57,266 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 344 transitions. Word has length 153 [2024-10-13 06:23:57,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:57,267 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 344 transitions. [2024-10-13 06:23:57,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 344 transitions. [2024-10-13 06:23:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-13 06:23:57,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:57,271 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:57,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:23:57,272 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:57,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:57,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2048094423, now seen corresponding path program 1 times [2024-10-13 06:23:57,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:57,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457710415] [2024-10-13 06:23:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:57,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:57,461 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:57,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:57,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457710415] [2024-10-13 06:23:57,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457710415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:57,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:57,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:23:57,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749927797] [2024-10-13 06:23:57,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:57,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:23:57,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:57,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:23:57,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:57,464 INFO L87 Difference]: Start difference. First operand 258 states and 344 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:57,562 INFO L93 Difference]: Finished difference Result 602 states and 804 transitions. [2024-10-13 06:23:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:23:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2024-10-13 06:23:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:57,565 INFO L225 Difference]: With dead ends: 602 [2024-10-13 06:23:57,565 INFO L226 Difference]: Without dead ends: 345 [2024-10-13 06:23:57,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:23:57,567 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 51 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:57,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 899 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:57,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-10-13 06:23:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 295. [2024-10-13 06:23:57,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 263 states have (on average 1.2927756653992395) internal successors, (340), 264 states have internal predecessors, (340), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-13 06:23:57,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 392 transitions. [2024-10-13 06:23:57,586 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 392 transitions. Word has length 153 [2024-10-13 06:23:57,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:57,586 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 392 transitions. [2024-10-13 06:23:57,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:57,586 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 392 transitions. [2024-10-13 06:23:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-13 06:23:57,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:57,588 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:57,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:23:57,589 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:57,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:57,589 INFO L85 PathProgramCache]: Analyzing trace with hash -980410223, now seen corresponding path program 1 times [2024-10-13 06:23:57,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:57,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340423832] [2024-10-13 06:23:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:58,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:58,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:58,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:58,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:58,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340423832] [2024-10-13 06:23:58,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340423832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:58,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:58,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:23:58,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221947518] [2024-10-13 06:23:58,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:58,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:23:58,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:58,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:23:58,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:23:58,420 INFO L87 Difference]: Start difference. First operand 295 states and 392 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:58,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:58,585 INFO L93 Difference]: Finished difference Result 597 states and 793 transitions. [2024-10-13 06:23:58,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:23:58,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-10-13 06:23:58,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:58,588 INFO L225 Difference]: With dead ends: 597 [2024-10-13 06:23:58,588 INFO L226 Difference]: Without dead ends: 303 [2024-10-13 06:23:58,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:23:58,590 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 110 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:58,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 777 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:58,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2024-10-13 06:23:58,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2024-10-13 06:23:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 265 states have (on average 1.290566037735849) internal successors, (342), 266 states have internal predecessors, (342), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-13 06:23:58,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 394 transitions. [2024-10-13 06:23:58,630 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 394 transitions. Word has length 154 [2024-10-13 06:23:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:58,632 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 394 transitions. [2024-10-13 06:23:58,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 394 transitions. [2024-10-13 06:23:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:23:58,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:58,634 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:58,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 06:23:58,634 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:58,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:58,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1554002775, now seen corresponding path program 1 times [2024-10-13 06:23:58,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:58,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747700490] [2024-10-13 06:23:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:23:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:23:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:23:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:23:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:23:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:23:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:23:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:23:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:23:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:23:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:23:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:23:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:23:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:23:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:23:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:23:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:23:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:23:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:23:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:23:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:23:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:23:58,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:23:58,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747700490] [2024-10-13 06:23:58,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747700490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:23:58,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:23:58,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:23:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336008686] [2024-10-13 06:23:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:23:58,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:23:58,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:23:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:23:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:23:58,979 INFO L87 Difference]: Start difference. First operand 297 states and 394 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:59,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:23:59,100 INFO L93 Difference]: Finished difference Result 816 states and 1072 transitions. [2024-10-13 06:23:59,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:23:59,101 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:23:59,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:23:59,104 INFO L225 Difference]: With dead ends: 816 [2024-10-13 06:23:59,104 INFO L226 Difference]: Without dead ends: 520 [2024-10-13 06:23:59,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:23:59,106 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 163 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:23:59,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 435 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:23:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-10-13 06:23:59,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 517. [2024-10-13 06:23:59,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 458 states have (on average 1.2641921397379912) internal successors, (579), 461 states have internal predecessors, (579), 48 states have call successors, (48), 10 states have call predecessors, (48), 10 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-13 06:23:59,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 675 transitions. [2024-10-13 06:23:59,143 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 675 transitions. Word has length 155 [2024-10-13 06:23:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:23:59,144 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 675 transitions. [2024-10-13 06:23:59,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:23:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 675 transitions. [2024-10-13 06:23:59,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:23:59,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:23:59,146 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:23:59,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:23:59,147 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:23:59,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:23:59,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1947029785, now seen corresponding path program 1 times [2024-10-13 06:23:59,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:23:59,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871865306] [2024-10-13 06:23:59,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:23:59,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:23:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:00,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,121 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:00,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:00,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871865306] [2024-10-13 06:24:00,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871865306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:00,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:00,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:24:00,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991964898] [2024-10-13 06:24:00,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:00,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:24:00,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:00,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:24:00,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:24:00,125 INFO L87 Difference]: Start difference. First operand 517 states and 675 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:00,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:00,585 INFO L93 Difference]: Finished difference Result 1322 states and 1712 transitions. [2024-10-13 06:24:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:24:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:00,591 INFO L225 Difference]: With dead ends: 1322 [2024-10-13 06:24:00,591 INFO L226 Difference]: Without dead ends: 806 [2024-10-13 06:24:00,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:24:00,593 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 244 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:00,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 1186 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:24:00,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-10-13 06:24:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 744. [2024-10-13 06:24:00,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 659 states have (on average 1.2488619119878603) internal successors, (823), 664 states have internal predecessors, (823), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:24:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 959 transitions. [2024-10-13 06:24:00,655 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 959 transitions. Word has length 155 [2024-10-13 06:24:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:00,656 INFO L471 AbstractCegarLoop]: Abstraction has 744 states and 959 transitions. [2024-10-13 06:24:00,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 959 transitions. [2024-10-13 06:24:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:24:00,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:00,659 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:00,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:24:00,660 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:00,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1705467200, now seen corresponding path program 1 times [2024-10-13 06:24:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:00,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291089389] [2024-10-13 06:24:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:00,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:00,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:00,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291089389] [2024-10-13 06:24:00,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291089389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:00,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:00,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:00,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879937643] [2024-10-13 06:24:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:00,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:00,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:00,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:00,980 INFO L87 Difference]: Start difference. First operand 744 states and 959 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:01,105 INFO L93 Difference]: Finished difference Result 1482 states and 1907 transitions. [2024-10-13 06:24:01,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:01,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:01,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:01,111 INFO L225 Difference]: With dead ends: 1482 [2024-10-13 06:24:01,111 INFO L226 Difference]: Without dead ends: 739 [2024-10-13 06:24:01,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:01,116 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 45 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:01,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 596 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:24:01,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2024-10-13 06:24:01,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 736. [2024-10-13 06:24:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 651 states have (on average 1.2380952380952381) internal successors, (806), 656 states have internal predecessors, (806), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:24:01,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 942 transitions. [2024-10-13 06:24:01,182 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 942 transitions. Word has length 155 [2024-10-13 06:24:01,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:01,183 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 942 transitions. [2024-10-13 06:24:01,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 942 transitions. [2024-10-13 06:24:01,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:24:01,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:01,186 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:01,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:24:01,186 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:01,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:01,187 INFO L85 PathProgramCache]: Analyzing trace with hash -382757696, now seen corresponding path program 1 times [2024-10-13 06:24:01,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:01,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472682426] [2024-10-13 06:24:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:01,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:01,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:01,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,506 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:01,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:01,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472682426] [2024-10-13 06:24:01,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472682426] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:01,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:01,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:01,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19227818] [2024-10-13 06:24:01,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:01,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:01,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:01,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:01,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:01,508 INFO L87 Difference]: Start difference. First operand 736 states and 942 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:01,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:01,600 INFO L93 Difference]: Finished difference Result 1470 states and 1879 transitions. [2024-10-13 06:24:01,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:01,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:01,605 INFO L225 Difference]: With dead ends: 1470 [2024-10-13 06:24:01,606 INFO L226 Difference]: Without dead ends: 735 [2024-10-13 06:24:01,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:01,609 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 45 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:01,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 654 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:24:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2024-10-13 06:24:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 732. [2024-10-13 06:24:01,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 647 states have (on average 1.23338485316847) internal successors, (798), 652 states have internal predecessors, (798), 68 states have call successors, (68), 16 states have call predecessors, (68), 16 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-13 06:24:01,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 934 transitions. [2024-10-13 06:24:01,664 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 934 transitions. Word has length 155 [2024-10-13 06:24:01,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:01,665 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 934 transitions. [2024-10-13 06:24:01,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 934 transitions. [2024-10-13 06:24:01,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:24:01,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:01,668 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:01,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:24:01,668 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:01,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:01,669 INFO L85 PathProgramCache]: Analyzing trace with hash -534222121, now seen corresponding path program 1 times [2024-10-13 06:24:01,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:01,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979751801] [2024-10-13 06:24:01,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:01,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:01,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:01,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:01,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:02,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:02,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:02,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:02,029 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:02,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:02,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979751801] [2024-10-13 06:24:02,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979751801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:02,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:02,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:02,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631534737] [2024-10-13 06:24:02,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:02,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:02,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:02,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:02,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:02,032 INFO L87 Difference]: Start difference. First operand 732 states and 934 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:02,138 INFO L93 Difference]: Finished difference Result 1678 states and 2136 transitions. [2024-10-13 06:24:02,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:02,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:02,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:02,143 INFO L225 Difference]: With dead ends: 1678 [2024-10-13 06:24:02,144 INFO L226 Difference]: Without dead ends: 947 [2024-10-13 06:24:02,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:02,146 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 82 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:02,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 699 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:24:02,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-10-13 06:24:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 944. [2024-10-13 06:24:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 836 states have (on average 1.2284688995215312) internal successors, (1027), 843 states have internal predecessors, (1027), 86 states have call successors, (86), 21 states have call predecessors, (86), 21 states have return successors, (86), 79 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 06:24:02,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1199 transitions. [2024-10-13 06:24:02,218 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1199 transitions. Word has length 155 [2024-10-13 06:24:02,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:02,219 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1199 transitions. [2024-10-13 06:24:02,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:02,219 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1199 transitions. [2024-10-13 06:24:02,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:24:02,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:02,222 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:02,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:24:02,223 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:02,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:02,223 INFO L85 PathProgramCache]: Analyzing trace with hash -927249131, now seen corresponding path program 1 times [2024-10-13 06:24:02,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:02,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795111423] [2024-10-13 06:24:02,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:02,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:03,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:03,195 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:03,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:03,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795111423] [2024-10-13 06:24:03,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795111423] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:03,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:03,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:24:03,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756455510] [2024-10-13 06:24:03,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:03,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:24:03,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:03,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:24:03,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:24:03,199 INFO L87 Difference]: Start difference. First operand 944 states and 1199 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:03,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:03,701 INFO L93 Difference]: Finished difference Result 2063 states and 2613 transitions. [2024-10-13 06:24:03,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:24:03,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:03,708 INFO L225 Difference]: With dead ends: 2063 [2024-10-13 06:24:03,709 INFO L226 Difference]: Without dead ends: 1120 [2024-10-13 06:24:03,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:24:03,712 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 183 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:03,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1925 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:24:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2024-10-13 06:24:03,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 922. [2024-10-13 06:24:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 838 states have (on average 1.224343675417661) internal successors, (1026), 843 states have internal predecessors, (1026), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-13 06:24:03,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1158 transitions. [2024-10-13 06:24:03,782 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1158 transitions. Word has length 155 [2024-10-13 06:24:03,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:03,782 INFO L471 AbstractCegarLoop]: Abstraction has 922 states and 1158 transitions. [2024-10-13 06:24:03,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:03,783 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1158 transitions. [2024-10-13 06:24:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-13 06:24:03,785 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:03,786 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:03,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:24:03,786 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:03,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:03,787 INFO L85 PathProgramCache]: Analyzing trace with hash -596261735, now seen corresponding path program 1 times [2024-10-13 06:24:03,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:03,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139840729] [2024-10-13 06:24:03,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:03,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:04,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:04,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:04,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:04,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:04,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:04,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:04,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139840729] [2024-10-13 06:24:04,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139840729] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:04,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:04,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933748448] [2024-10-13 06:24:04,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:04,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:04,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:04,112 INFO L87 Difference]: Start difference. First operand 922 states and 1158 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:04,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:04,252 INFO L93 Difference]: Finished difference Result 1964 states and 2489 transitions. [2024-10-13 06:24:04,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:04,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 155 [2024-10-13 06:24:04,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:04,259 INFO L225 Difference]: With dead ends: 1964 [2024-10-13 06:24:04,259 INFO L226 Difference]: Without dead ends: 1043 [2024-10-13 06:24:04,262 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:04,263 INFO L432 NwaCegarLoop]: 276 mSDtfsCounter, 138 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:04,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 953 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-10-13 06:24:04,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 883. [2024-10-13 06:24:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 799 states have (on average 1.2240300375469337) internal successors, (978), 804 states have internal predecessors, (978), 66 states have call successors, (66), 17 states have call predecessors, (66), 17 states have return successors, (66), 61 states have call predecessors, (66), 66 states have call successors, (66) [2024-10-13 06:24:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1110 transitions. [2024-10-13 06:24:04,327 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1110 transitions. Word has length 155 [2024-10-13 06:24:04,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:04,327 INFO L471 AbstractCegarLoop]: Abstraction has 883 states and 1110 transitions. [2024-10-13 06:24:04,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1110 transitions. [2024-10-13 06:24:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 06:24:04,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:04,331 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:04,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 06:24:04,331 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:04,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:04,331 INFO L85 PathProgramCache]: Analyzing trace with hash -991014282, now seen corresponding path program 1 times [2024-10-13 06:24:04,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:04,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703047906] [2024-10-13 06:24:04,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:04,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:04,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:04,572 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:04,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:04,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703047906] [2024-10-13 06:24:04,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703047906] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:04,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:04,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:24:04,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011898261] [2024-10-13 06:24:04,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:04,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:24:04,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:04,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:24:04,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:24:04,577 INFO L87 Difference]: Start difference. First operand 883 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:04,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:04,801 INFO L93 Difference]: Finished difference Result 2513 states and 3160 transitions. [2024-10-13 06:24:04,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:24:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-10-13 06:24:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:04,810 INFO L225 Difference]: With dead ends: 2513 [2024-10-13 06:24:04,810 INFO L226 Difference]: Without dead ends: 1631 [2024-10-13 06:24:04,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:04,814 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 107 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:04,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 417 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:04,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-10-13 06:24:04,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1193. [2024-10-13 06:24:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 1084 states have (on average 1.2306273062730628) internal successors, (1334), 1089 states have internal predecessors, (1334), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 06:24:04,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1506 transitions. [2024-10-13 06:24:04,928 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1506 transitions. Word has length 156 [2024-10-13 06:24:04,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:04,929 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1506 transitions. [2024-10-13 06:24:04,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:04,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1506 transitions. [2024-10-13 06:24:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-13 06:24:04,933 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:04,933 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:04,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:24:04,933 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1577820296, now seen corresponding path program 1 times [2024-10-13 06:24:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767994559] [2024-10-13 06:24:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:05,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:05,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767994559] [2024-10-13 06:24:05,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767994559] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:05,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:05,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:24:05,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652596793] [2024-10-13 06:24:05,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:05,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:24:05,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:05,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:24:05,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:24:05,753 INFO L87 Difference]: Start difference. First operand 1193 states and 1506 transitions. Second operand has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:06,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:06,432 INFO L93 Difference]: Finished difference Result 3329 states and 4203 transitions. [2024-10-13 06:24:06,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 06:24:06,433 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 156 [2024-10-13 06:24:06,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:06,444 INFO L225 Difference]: With dead ends: 3329 [2024-10-13 06:24:06,445 INFO L226 Difference]: Without dead ends: 2437 [2024-10-13 06:24:06,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:24:06,450 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 583 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:06,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1022 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:24:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2024-10-13 06:24:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 1423. [2024-10-13 06:24:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2328767123287672) internal successors, (1620), 1319 states have internal predecessors, (1620), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 06:24:06,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1792 transitions. [2024-10-13 06:24:06,564 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1792 transitions. Word has length 156 [2024-10-13 06:24:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:06,564 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1792 transitions. [2024-10-13 06:24:06,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1792 transitions. [2024-10-13 06:24:06,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:06,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:06,568 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:06,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:24:06,569 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -124374938, now seen corresponding path program 1 times [2024-10-13 06:24:06,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:06,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884448698] [2024-10-13 06:24:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:06,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:06,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:06,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:06,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884448698] [2024-10-13 06:24:06,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884448698] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:06,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:06,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021890833] [2024-10-13 06:24:06,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:06,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:06,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:06,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:06,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:06,985 INFO L87 Difference]: Start difference. First operand 1423 states and 1792 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:07,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:07,306 INFO L93 Difference]: Finished difference Result 2735 states and 3459 transitions. [2024-10-13 06:24:07,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:24:07,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:07,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:07,315 INFO L225 Difference]: With dead ends: 2735 [2024-10-13 06:24:07,315 INFO L226 Difference]: Without dead ends: 1605 [2024-10-13 06:24:07,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:24:07,319 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 133 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:07,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 1127 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:24:07,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2024-10-13 06:24:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1423. [2024-10-13 06:24:07,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1314 states have (on average 1.2207001522070016) internal successors, (1604), 1319 states have internal predecessors, (1604), 86 states have call successors, (86), 22 states have call predecessors, (86), 22 states have return successors, (86), 81 states have call predecessors, (86), 86 states have call successors, (86) [2024-10-13 06:24:07,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1776 transitions. [2024-10-13 06:24:07,420 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1776 transitions. Word has length 157 [2024-10-13 06:24:07,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:07,421 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 1776 transitions. [2024-10-13 06:24:07,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:07,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1776 transitions. [2024-10-13 06:24:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:07,424 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:07,424 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:07,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:24:07,426 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:07,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:07,426 INFO L85 PathProgramCache]: Analyzing trace with hash -537483444, now seen corresponding path program 1 times [2024-10-13 06:24:07,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:07,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424393674] [2024-10-13 06:24:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:07,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:07,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:08,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:08,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:08,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:08,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:08,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:08,842 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:08,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:08,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424393674] [2024-10-13 06:24:08,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424393674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:08,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:08,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:24:08,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054905392] [2024-10-13 06:24:08,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:08,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:24:08,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:08,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:24:08,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:24:08,845 INFO L87 Difference]: Start difference. First operand 1423 states and 1776 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:09,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:09,602 INFO L93 Difference]: Finished difference Result 4135 states and 5132 transitions. [2024-10-13 06:24:09,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 06:24:09,602 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:09,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:09,616 INFO L225 Difference]: With dead ends: 4135 [2024-10-13 06:24:09,616 INFO L226 Difference]: Without dead ends: 3023 [2024-10-13 06:24:09,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2024-10-13 06:24:09,625 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 671 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:09,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1196 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:24:09,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2024-10-13 06:24:09,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 1910. [2024-10-13 06:24:09,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1718 states have (on average 1.2054714784633294) internal successors, (2071), 1728 states have internal predecessors, (2071), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-10-13 06:24:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2375 transitions. [2024-10-13 06:24:09,890 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2375 transitions. Word has length 157 [2024-10-13 06:24:09,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:09,891 INFO L471 AbstractCegarLoop]: Abstraction has 1910 states and 2375 transitions. [2024-10-13 06:24:09,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2375 transitions. [2024-10-13 06:24:09,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:09,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:09,896 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:09,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 06:24:09,897 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:09,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:09,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1237523918, now seen corresponding path program 1 times [2024-10-13 06:24:09,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:09,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134646728] [2024-10-13 06:24:09,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:09,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:10,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:10,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:10,229 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:10,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134646728] [2024-10-13 06:24:10,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134646728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:10,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:10,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:10,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753503268] [2024-10-13 06:24:10,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:10,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:10,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:10,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:10,232 INFO L87 Difference]: Start difference. First operand 1910 states and 2375 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:10,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:10,508 INFO L93 Difference]: Finished difference Result 4547 states and 5606 transitions. [2024-10-13 06:24:10,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:10,508 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:10,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:10,522 INFO L225 Difference]: With dead ends: 4547 [2024-10-13 06:24:10,523 INFO L226 Difference]: Without dead ends: 2948 [2024-10-13 06:24:10,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:10,528 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 49 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:10,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 615 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:10,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2948 states. [2024-10-13 06:24:10,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2948 to 2832. [2024-10-13 06:24:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2832 states, 2640 states have (on average 1.1981060606060605) internal successors, (3163), 2650 states have internal predecessors, (3163), 152 states have call successors, (152), 39 states have call predecessors, (152), 39 states have return successors, (152), 142 states have call predecessors, (152), 152 states have call successors, (152) [2024-10-13 06:24:10,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2832 states to 2832 states and 3467 transitions. [2024-10-13 06:24:10,723 INFO L78 Accepts]: Start accepts. Automaton has 2832 states and 3467 transitions. Word has length 157 [2024-10-13 06:24:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:10,724 INFO L471 AbstractCegarLoop]: Abstraction has 2832 states and 3467 transitions. [2024-10-13 06:24:10,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2832 states and 3467 transitions. [2024-10-13 06:24:10,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:10,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:10,729 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:10,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 06:24:10,731 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:10,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1026875038, now seen corresponding path program 1 times [2024-10-13 06:24:10,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:10,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733240071] [2024-10-13 06:24:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:10,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:11,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:11,197 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:11,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733240071] [2024-10-13 06:24:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733240071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:11,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:11,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:11,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88732271] [2024-10-13 06:24:11,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:11,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:11,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:11,199 INFO L87 Difference]: Start difference. First operand 2832 states and 3467 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:11,658 INFO L93 Difference]: Finished difference Result 5622 states and 6907 transitions. [2024-10-13 06:24:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:11,674 INFO L225 Difference]: With dead ends: 5622 [2024-10-13 06:24:11,674 INFO L226 Difference]: Without dead ends: 3195 [2024-10-13 06:24:11,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:24:11,681 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 269 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:11,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 780 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:24:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2024-10-13 06:24:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 2947. [2024-10-13 06:24:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1585141596175064) internal successors, (3150), 2731 states have internal predecessors, (3150), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-10-13 06:24:11,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3510 transitions. [2024-10-13 06:24:11,888 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3510 transitions. Word has length 157 [2024-10-13 06:24:11,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:11,888 INFO L471 AbstractCegarLoop]: Abstraction has 2947 states and 3510 transitions. [2024-10-13 06:24:11,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:11,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3510 transitions. [2024-10-13 06:24:11,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:11,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:11,895 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:11,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-13 06:24:11,895 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:11,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:11,895 INFO L85 PathProgramCache]: Analyzing trace with hash -396934834, now seen corresponding path program 1 times [2024-10-13 06:24:11,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:11,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484468021] [2024-10-13 06:24:11,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:11,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:12,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:12,179 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:12,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:12,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484468021] [2024-10-13 06:24:12,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484468021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:12,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:12,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:12,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034423943] [2024-10-13 06:24:12,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:12,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:12,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:12,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:12,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:12,181 INFO L87 Difference]: Start difference. First operand 2947 states and 3510 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:12,478 INFO L93 Difference]: Finished difference Result 4980 states and 5925 transitions. [2024-10-13 06:24:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:12,479 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:12,499 INFO L225 Difference]: With dead ends: 4980 [2024-10-13 06:24:12,500 INFO L226 Difference]: Without dead ends: 3082 [2024-10-13 06:24:12,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:12,511 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 49 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 823 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:12,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 823 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:12,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3082 states. [2024-10-13 06:24:12,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3082 to 2947. [2024-10-13 06:24:12,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2719 states have (on average 1.1559396837072453) internal successors, (3143), 2731 states have internal predecessors, (3143), 180 states have call successors, (180), 47 states have call predecessors, (180), 47 states have return successors, (180), 168 states have call predecessors, (180), 180 states have call successors, (180) [2024-10-13 06:24:12,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 3503 transitions. [2024-10-13 06:24:12,762 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 3503 transitions. Word has length 157 [2024-10-13 06:24:12,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:12,763 INFO L471 AbstractCegarLoop]: Abstraction has 2947 states and 3503 transitions. [2024-10-13 06:24:12,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 3503 transitions. [2024-10-13 06:24:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:12,772 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:12,772 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:12,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-13 06:24:12,772 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:12,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1378072528, now seen corresponding path program 1 times [2024-10-13 06:24:12,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:12,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950511664] [2024-10-13 06:24:12,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:12,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:13,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:13,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:13,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:13,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:13,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:13,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:13,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950511664] [2024-10-13 06:24:13,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950511664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:13,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:13,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:24:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336455714] [2024-10-13 06:24:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:13,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:24:13,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:24:13,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:24:13,578 INFO L87 Difference]: Start difference. First operand 2947 states and 3503 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:14,294 INFO L93 Difference]: Finished difference Result 5172 states and 6160 transitions. [2024-10-13 06:24:14,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:24:14,295 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:14,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:14,316 INFO L225 Difference]: With dead ends: 5172 [2024-10-13 06:24:14,319 INFO L226 Difference]: Without dead ends: 3274 [2024-10-13 06:24:14,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-13 06:24:14,326 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 100 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:14,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 1677 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:24:14,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3274 states. [2024-10-13 06:24:14,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3274 to 3271. [2024-10-13 06:24:14,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2944 states have (on average 1.153532608695652) internal successors, (3396), 2963 states have internal predecessors, (3396), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:14,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 3912 transitions. [2024-10-13 06:24:14,749 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 3912 transitions. Word has length 157 [2024-10-13 06:24:14,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:14,750 INFO L471 AbstractCegarLoop]: Abstraction has 3271 states and 3912 transitions. [2024-10-13 06:24:14,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:14,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 3912 transitions. [2024-10-13 06:24:14,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:14,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:14,757 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:14,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-13 06:24:14,758 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:14,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:14,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1803870151, now seen corresponding path program 1 times [2024-10-13 06:24:14,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:14,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585850417] [2024-10-13 06:24:14,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:14,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:15,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:15,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:15,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:15,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:15,383 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:15,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:15,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585850417] [2024-10-13 06:24:15,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585850417] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:15,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:15,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:24:15,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291572772] [2024-10-13 06:24:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:15,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:24:15,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:15,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:24:15,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:24:15,385 INFO L87 Difference]: Start difference. First operand 3271 states and 3912 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:15,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:15,882 INFO L93 Difference]: Finished difference Result 5487 states and 6551 transitions. [2024-10-13 06:24:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:24:15,883 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-13 06:24:15,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:15,898 INFO L225 Difference]: With dead ends: 5487 [2024-10-13 06:24:15,899 INFO L226 Difference]: Without dead ends: 3265 [2024-10-13 06:24:15,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-13 06:24:15,905 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 105 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:15,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 926 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:24:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3265 states. [2024-10-13 06:24:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3265 to 3185. [2024-10-13 06:24:16,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3185 states, 2858 states have (on average 1.150104968509447) internal successors, (3287), 2877 states have internal predecessors, (3287), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:16,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3185 states to 3185 states and 3803 transitions. [2024-10-13 06:24:16,155 INFO L78 Accepts]: Start accepts. Automaton has 3185 states and 3803 transitions. Word has length 157 [2024-10-13 06:24:16,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:16,156 INFO L471 AbstractCegarLoop]: Abstraction has 3185 states and 3803 transitions. [2024-10-13 06:24:16,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3185 states and 3803 transitions. [2024-10-13 06:24:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-13 06:24:16,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:16,161 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:16,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-13 06:24:16,162 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:16,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash 919333644, now seen corresponding path program 1 times [2024-10-13 06:24:16,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:16,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750191683] [2024-10-13 06:24:16,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:16,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:17,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:17,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:17,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:17,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:17,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:18,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:18,055 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:18,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:18,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750191683] [2024-10-13 06:24:18,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750191683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:18,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:18,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 06:24:18,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389840596] [2024-10-13 06:24:18,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:18,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 06:24:18,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:18,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 06:24:18,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:24:18,057 INFO L87 Difference]: Start difference. First operand 3185 states and 3803 transitions. Second operand has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:19,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:19,394 INFO L93 Difference]: Finished difference Result 7644 states and 9097 transitions. [2024-10-13 06:24:19,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 06:24:19,394 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 157 [2024-10-13 06:24:19,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:19,411 INFO L225 Difference]: With dead ends: 7644 [2024-10-13 06:24:19,411 INFO L226 Difference]: Without dead ends: 5508 [2024-10-13 06:24:19,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=222, Invalid=708, Unknown=0, NotChecked=0, Total=930 [2024-10-13 06:24:19,419 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 773 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:19,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1577 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:24:19,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5508 states. [2024-10-13 06:24:19,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5508 to 3292. [2024-10-13 06:24:19,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.1500843170320405) internal successors, (3410), 2984 states have internal predecessors, (3410), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:19,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3926 transitions. [2024-10-13 06:24:19,702 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3926 transitions. Word has length 157 [2024-10-13 06:24:19,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:19,703 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 3926 transitions. [2024-10-13 06:24:19,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 16 states have internal predecessors, (60), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3926 transitions. [2024-10-13 06:24:19,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-13 06:24:19,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:19,707 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:19,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-13 06:24:19,708 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:19,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash -302479244, now seen corresponding path program 1 times [2024-10-13 06:24:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:19,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681079549] [2024-10-13 06:24:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:19,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:19,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:19,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:19,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681079549] [2024-10-13 06:24:19,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681079549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:19,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:19,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:19,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201110452] [2024-10-13 06:24:19,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:19,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:19,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:19,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:19,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:19,866 INFO L87 Difference]: Start difference. First operand 3292 states and 3926 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:20,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:20,318 INFO L93 Difference]: Finished difference Result 5978 states and 7209 transitions. [2024-10-13 06:24:20,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:20,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-10-13 06:24:20,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:20,332 INFO L225 Difference]: With dead ends: 5978 [2024-10-13 06:24:20,332 INFO L226 Difference]: Without dead ends: 3842 [2024-10-13 06:24:20,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:20,340 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 60 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:20,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 857 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:20,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-10-13 06:24:20,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3352. [2024-10-13 06:24:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3352 states, 3025 states have (on average 1.147107438016529) internal successors, (3470), 3044 states have internal predecessors, (3470), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:20,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3352 states to 3352 states and 3986 transitions. [2024-10-13 06:24:20,655 INFO L78 Accepts]: Start accepts. Automaton has 3352 states and 3986 transitions. Word has length 158 [2024-10-13 06:24:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:20,655 INFO L471 AbstractCegarLoop]: Abstraction has 3352 states and 3986 transitions. [2024-10-13 06:24:20,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 3352 states and 3986 transitions. [2024-10-13 06:24:20,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-13 06:24:20,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:20,661 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:20,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-13 06:24:20,661 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:20,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:20,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1603976560, now seen corresponding path program 1 times [2024-10-13 06:24:20,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:20,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243376946] [2024-10-13 06:24:20,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:20,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:20,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:20,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:20,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:20,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243376946] [2024-10-13 06:24:20,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243376946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:20,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:20,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365361966] [2024-10-13 06:24:20,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:20,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:20,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:20,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:20,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:20,838 INFO L87 Difference]: Start difference. First operand 3352 states and 3986 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:21,131 INFO L93 Difference]: Finished difference Result 6018 states and 7189 transitions. [2024-10-13 06:24:21,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:24:21,132 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 158 [2024-10-13 06:24:21,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:21,144 INFO L225 Difference]: With dead ends: 6018 [2024-10-13 06:24:21,145 INFO L226 Difference]: Without dead ends: 3842 [2024-10-13 06:24:21,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:21,152 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 60 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:21,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 935 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:21,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2024-10-13 06:24:21,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3292. [2024-10-13 06:24:21,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3292 states, 2965 states have (on average 1.129848229342327) internal successors, (3350), 2984 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:21,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3292 states to 3292 states and 3866 transitions. [2024-10-13 06:24:21,451 INFO L78 Accepts]: Start accepts. Automaton has 3292 states and 3866 transitions. Word has length 158 [2024-10-13 06:24:21,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:21,452 INFO L471 AbstractCegarLoop]: Abstraction has 3292 states and 3866 transitions. [2024-10-13 06:24:21,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3292 states and 3866 transitions. [2024-10-13 06:24:21,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:21,457 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:21,457 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:21,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-13 06:24:21,457 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:21,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:21,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1242179295, now seen corresponding path program 1 times [2024-10-13 06:24:21,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:21,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663452382] [2024-10-13 06:24:21,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:21,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:22,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:22,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:22,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:22,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:22,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:22,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663452382] [2024-10-13 06:24:22,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663452382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:22,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:22,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:24:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821763596] [2024-10-13 06:24:22,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:22,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:24:22,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:22,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:24:22,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:24:22,144 INFO L87 Difference]: Start difference. First operand 3292 states and 3866 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:22,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:22,696 INFO L93 Difference]: Finished difference Result 6517 states and 7726 transitions. [2024-10-13 06:24:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:24:22,697 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:22,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:22,713 INFO L225 Difference]: With dead ends: 6517 [2024-10-13 06:24:22,713 INFO L226 Difference]: Without dead ends: 3738 [2024-10-13 06:24:22,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:24:22,724 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 125 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:22,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1679 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:24:22,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2024-10-13 06:24:23,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 3316. [2024-10-13 06:24:23,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 2989 states have (on average 1.1288056206088992) internal successors, (3374), 3008 states have internal predecessors, (3374), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:23,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 3890 transitions. [2024-10-13 06:24:23,025 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 3890 transitions. Word has length 159 [2024-10-13 06:24:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:23,025 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 3890 transitions. [2024-10-13 06:24:23,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 3890 transitions. [2024-10-13 06:24:23,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:23,030 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:23,030 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:23,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-13 06:24:23,031 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:23,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:23,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1635206305, now seen corresponding path program 1 times [2024-10-13 06:24:23,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:23,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578562220] [2024-10-13 06:24:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:23,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:23,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:23,334 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:23,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:23,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578562220] [2024-10-13 06:24:23,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578562220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:23,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:23,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:23,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130926767] [2024-10-13 06:24:23,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:23,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:23,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:23,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:23,337 INFO L87 Difference]: Start difference. First operand 3316 states and 3890 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:23,715 INFO L93 Difference]: Finished difference Result 6388 states and 7521 transitions. [2024-10-13 06:24:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:23,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:23,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:23,727 INFO L225 Difference]: With dead ends: 6388 [2024-10-13 06:24:23,728 INFO L226 Difference]: Without dead ends: 3585 [2024-10-13 06:24:23,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:23,735 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 139 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:23,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 579 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:23,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-10-13 06:24:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3298. [2024-10-13 06:24:24,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 2971 states have (on average 1.127566475934029) internal successors, (3350), 2990 states have internal predecessors, (3350), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:24,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 3866 transitions. [2024-10-13 06:24:24,034 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 3866 transitions. Word has length 159 [2024-10-13 06:24:24,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:24,035 INFO L471 AbstractCegarLoop]: Abstraction has 3298 states and 3866 transitions. [2024-10-13 06:24:24,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:24,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 3866 transitions. [2024-10-13 06:24:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:24,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:24,040 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:24,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-13 06:24:24,040 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:24,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:24,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1648432006, now seen corresponding path program 1 times [2024-10-13 06:24:24,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:24,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346248727] [2024-10-13 06:24:24,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:24,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:24,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:24,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:24,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:24,229 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:24,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:24,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346248727] [2024-10-13 06:24:24,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346248727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:24,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:24,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:24,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298282147] [2024-10-13 06:24:24,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:24,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:24,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:24,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:24,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:24,232 INFO L87 Difference]: Start difference. First operand 3298 states and 3866 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:24,478 INFO L93 Difference]: Finished difference Result 3363 states and 3951 transitions. [2024-10-13 06:24:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:24,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:24,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:24,492 INFO L225 Difference]: With dead ends: 3363 [2024-10-13 06:24:24,493 INFO L226 Difference]: Without dead ends: 3361 [2024-10-13 06:24:24,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:24,497 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:24,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 555 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:24:24,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2024-10-13 06:24:24,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3361. [2024-10-13 06:24:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3361 states, 3034 states have (on average 1.1249176005273567) internal successors, (3413), 3053 states have internal predecessors, (3413), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3361 states to 3361 states and 3929 transitions. [2024-10-13 06:24:24,780 INFO L78 Accepts]: Start accepts. Automaton has 3361 states and 3929 transitions. Word has length 159 [2024-10-13 06:24:24,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:24,780 INFO L471 AbstractCegarLoop]: Abstraction has 3361 states and 3929 transitions. [2024-10-13 06:24:24,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3361 states and 3929 transitions. [2024-10-13 06:24:24,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:24,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:24,786 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:24,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-13 06:24:24,786 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:24,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:24,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1612574051, now seen corresponding path program 1 times [2024-10-13 06:24:24,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:24,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591002997] [2024-10-13 06:24:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:24,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:25,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:25,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:25,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:25,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:26,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:26,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:26,030 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:26,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:26,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591002997] [2024-10-13 06:24:26,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591002997] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:26,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:26,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:24:26,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424414176] [2024-10-13 06:24:26,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:26,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:24:26,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:26,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:24:26,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:24:26,035 INFO L87 Difference]: Start difference. First operand 3361 states and 3929 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:26,887 INFO L93 Difference]: Finished difference Result 6649 states and 7805 transitions. [2024-10-13 06:24:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:24:26,888 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:26,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:26,904 INFO L225 Difference]: With dead ends: 6649 [2024-10-13 06:24:26,904 INFO L226 Difference]: Without dead ends: 3801 [2024-10-13 06:24:26,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-10-13 06:24:26,914 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 169 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1831 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:26,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1831 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:24:26,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2024-10-13 06:24:27,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3237. [2024-10-13 06:24:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 2910 states have (on average 1.1247422680412371) internal successors, (3273), 2929 states have internal predecessors, (3273), 258 states have call successors, (258), 68 states have call predecessors, (258), 68 states have return successors, (258), 239 states have call predecessors, (258), 258 states have call successors, (258) [2024-10-13 06:24:27,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 3789 transitions. [2024-10-13 06:24:27,217 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 3789 transitions. Word has length 159 [2024-10-13 06:24:27,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:27,218 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 3789 transitions. [2024-10-13 06:24:27,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:27,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 3789 transitions. [2024-10-13 06:24:27,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:27,225 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:27,225 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:27,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-13 06:24:27,226 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:27,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:27,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1623903563, now seen corresponding path program 1 times [2024-10-13 06:24:27,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:27,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832341437] [2024-10-13 06:24:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:27,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:27,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:28,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:28,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832341437] [2024-10-13 06:24:28,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832341437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:28,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:28,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:24:28,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637717229] [2024-10-13 06:24:28,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:28,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:24:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:28,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:24:28,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:24:28,134 INFO L87 Difference]: Start difference. First operand 3237 states and 3789 transitions. Second operand has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:28,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:28,968 INFO L93 Difference]: Finished difference Result 6005 states and 7026 transitions. [2024-10-13 06:24:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:24:28,969 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:28,981 INFO L225 Difference]: With dead ends: 6005 [2024-10-13 06:24:28,981 INFO L226 Difference]: Without dead ends: 3263 [2024-10-13 06:24:28,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-10-13 06:24:28,990 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 188 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:28,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 2022 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:24:28,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3263 states. [2024-10-13 06:24:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3263 to 2975. [2024-10-13 06:24:29,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2693 states have (on average 1.1251392499071666) internal successors, (3030), 2709 states have internal predecessors, (3030), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-10-13 06:24:29,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 3474 transitions. [2024-10-13 06:24:29,303 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 3474 transitions. Word has length 159 [2024-10-13 06:24:29,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:29,304 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 3474 transitions. [2024-10-13 06:24:29,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 3474 transitions. [2024-10-13 06:24:29,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:29,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:29,310 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:29,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-13 06:24:29,310 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:29,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:29,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1994298319, now seen corresponding path program 1 times [2024-10-13 06:24:29,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:29,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172941161] [2024-10-13 06:24:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:29,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:29,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:29,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:29,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:29,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:29,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172941161] [2024-10-13 06:24:29,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172941161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:29,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:29,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:24:29,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896318225] [2024-10-13 06:24:29,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:29,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:24:29,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:29,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:24:29,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:24:29,949 INFO L87 Difference]: Start difference. First operand 2975 states and 3474 transitions. Second operand has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:30,453 INFO L93 Difference]: Finished difference Result 5647 states and 6635 transitions. [2024-10-13 06:24:30,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:24:30,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:30,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:30,466 INFO L225 Difference]: With dead ends: 5647 [2024-10-13 06:24:30,466 INFO L226 Difference]: Without dead ends: 3149 [2024-10-13 06:24:30,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:24:30,473 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 125 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:30,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 2156 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:24:30,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2024-10-13 06:24:30,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2999. [2024-10-13 06:24:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2999 states, 2717 states have (on average 1.1240338608759661) internal successors, (3054), 2733 states have internal predecessors, (3054), 222 states have call successors, (222), 59 states have call predecessors, (222), 59 states have return successors, (222), 206 states have call predecessors, (222), 222 states have call successors, (222) [2024-10-13 06:24:30,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2999 states to 2999 states and 3498 transitions. [2024-10-13 06:24:30,713 INFO L78 Accepts]: Start accepts. Automaton has 2999 states and 3498 transitions. Word has length 159 [2024-10-13 06:24:30,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:30,714 INFO L471 AbstractCegarLoop]: Abstraction has 2999 states and 3498 transitions. [2024-10-13 06:24:30,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2999 states and 3498 transitions. [2024-10-13 06:24:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-13 06:24:30,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:30,718 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:30,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-13 06:24:30,719 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:30,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:30,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1601271309, now seen corresponding path program 1 times [2024-10-13 06:24:30,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:30,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542255667] [2024-10-13 06:24:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:30,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:31,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:31,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:31,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:31,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:31,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542255667] [2024-10-13 06:24:31,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542255667] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:31,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:31,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:24:31,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532744043] [2024-10-13 06:24:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:31,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:24:31,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:24:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:24:31,042 INFO L87 Difference]: Start difference. First operand 2999 states and 3498 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:31,350 INFO L93 Difference]: Finished difference Result 5507 states and 6412 transitions. [2024-10-13 06:24:31,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:24:31,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 159 [2024-10-13 06:24:31,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:31,360 INFO L225 Difference]: With dead ends: 5507 [2024-10-13 06:24:31,361 INFO L226 Difference]: Without dead ends: 2985 [2024-10-13 06:24:31,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:31,367 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 123 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:31,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 500 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:31,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2985 states. [2024-10-13 06:24:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2985 to 2683. [2024-10-13 06:24:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2683 states, 2475 states have (on average 1.1216161616161615) internal successors, (2776), 2485 states have internal predecessors, (2776), 162 states have call successors, (162), 45 states have call predecessors, (162), 45 states have return successors, (162), 152 states have call predecessors, (162), 162 states have call successors, (162) [2024-10-13 06:24:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2683 states to 2683 states and 3100 transitions. [2024-10-13 06:24:31,566 INFO L78 Accepts]: Start accepts. Automaton has 2683 states and 3100 transitions. Word has length 159 [2024-10-13 06:24:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:31,567 INFO L471 AbstractCegarLoop]: Abstraction has 2683 states and 3100 transitions. [2024-10-13 06:24:31,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2683 states and 3100 transitions. [2024-10-13 06:24:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-13 06:24:31,570 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:31,571 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:31,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-13 06:24:31,571 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:31,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash -194576730, now seen corresponding path program 1 times [2024-10-13 06:24:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:31,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107096863] [2024-10-13 06:24:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:31,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:33,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:34,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:34,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:34,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107096863] [2024-10-13 06:24:34,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107096863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:34,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:34,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-13 06:24:34,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035434803] [2024-10-13 06:24:34,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:34,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 06:24:34,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:34,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 06:24:34,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-10-13 06:24:34,011 INFO L87 Difference]: Start difference. First operand 2683 states and 3100 transitions. Second operand has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-13 06:24:35,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:35,693 INFO L93 Difference]: Finished difference Result 5047 states and 5821 transitions. [2024-10-13 06:24:35,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 06:24:35,694 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 160 [2024-10-13 06:24:35,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:35,704 INFO L225 Difference]: With dead ends: 5047 [2024-10-13 06:24:35,704 INFO L226 Difference]: Without dead ends: 3317 [2024-10-13 06:24:35,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 06:24:35,709 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 1337 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:35,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 974 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:24:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2024-10-13 06:24:35,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2211. [2024-10-13 06:24:35,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 2064 states have (on average 1.122093023255814) internal successors, (2316), 2071 states have internal predecessors, (2316), 114 states have call successors, (114), 32 states have call predecessors, (114), 32 states have return successors, (114), 107 states have call predecessors, (114), 114 states have call successors, (114) [2024-10-13 06:24:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 2544 transitions. [2024-10-13 06:24:35,915 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 2544 transitions. Word has length 160 [2024-10-13 06:24:35,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:35,916 INFO L471 AbstractCegarLoop]: Abstraction has 2211 states and 2544 transitions. [2024-10-13 06:24:35,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 5 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-10-13 06:24:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 2544 transitions. [2024-10-13 06:24:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-13 06:24:35,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:35,919 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:35,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-13 06:24:35,920 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:35,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1006444245, now seen corresponding path program 1 times [2024-10-13 06:24:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903404573] [2024-10-13 06:24:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:35,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:36,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:36,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:36,477 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:36,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:36,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903404573] [2024-10-13 06:24:36,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903404573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:36,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:36,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:24:36,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459929349] [2024-10-13 06:24:36,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:36,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:24:36,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:36,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:24:36,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:24:36,480 INFO L87 Difference]: Start difference. First operand 2211 states and 2544 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:37,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:37,028 INFO L93 Difference]: Finished difference Result 5889 states and 6726 transitions. [2024-10-13 06:24:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:24:37,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2024-10-13 06:24:37,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:37,042 INFO L225 Difference]: With dead ends: 5889 [2024-10-13 06:24:37,043 INFO L226 Difference]: Without dead ends: 4159 [2024-10-13 06:24:37,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:24:37,048 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 387 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:37,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 583 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:24:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4159 states. [2024-10-13 06:24:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4159 to 4155. [2024-10-13 06:24:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4155 states, 3936 states have (on average 1.1148373983739837) internal successors, (4388), 3951 states have internal predecessors, (4388), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-10-13 06:24:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4155 states to 4155 states and 4728 transitions. [2024-10-13 06:24:37,371 INFO L78 Accepts]: Start accepts. Automaton has 4155 states and 4728 transitions. Word has length 161 [2024-10-13 06:24:37,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:37,372 INFO L471 AbstractCegarLoop]: Abstraction has 4155 states and 4728 transitions. [2024-10-13 06:24:37,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-13 06:24:37,373 INFO L276 IsEmpty]: Start isEmpty. Operand 4155 states and 4728 transitions. [2024-10-13 06:24:37,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-13 06:24:37,378 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:37,378 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:37,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-13 06:24:37,379 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:37,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:37,379 INFO L85 PathProgramCache]: Analyzing trace with hash -710424436, now seen corresponding path program 1 times [2024-10-13 06:24:37,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:37,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975498613] [2024-10-13 06:24:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:37,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:37,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:37,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:37,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:37,710 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:37,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:37,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975498613] [2024-10-13 06:24:37,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975498613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:37,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:37,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:24:37,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712771308] [2024-10-13 06:24:37,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:37,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:24:37,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:37,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:24:37,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:24:37,713 INFO L87 Difference]: Start difference. First operand 4155 states and 4728 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:38,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:24:38,152 INFO L93 Difference]: Finished difference Result 6286 states and 7156 transitions. [2024-10-13 06:24:38,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:24:38,152 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-10-13 06:24:38,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:24:38,170 INFO L225 Difference]: With dead ends: 6286 [2024-10-13 06:24:38,170 INFO L226 Difference]: Without dead ends: 6284 [2024-10-13 06:24:38,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:24:38,175 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 93 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1338 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:24:38,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1338 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:24:38,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2024-10-13 06:24:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 5887. [2024-10-13 06:24:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5668 states have (on average 1.1164431898376852) internal successors, (6328), 5683 states have internal predecessors, (6328), 170 states have call successors, (170), 48 states have call predecessors, (170), 48 states have return successors, (170), 155 states have call predecessors, (170), 170 states have call successors, (170) [2024-10-13 06:24:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 6668 transitions. [2024-10-13 06:24:38,557 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 6668 transitions. Word has length 162 [2024-10-13 06:24:38,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:24:38,560 INFO L471 AbstractCegarLoop]: Abstraction has 5887 states and 6668 transitions. [2024-10-13 06:24:38,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-13 06:24:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 6668 transitions. [2024-10-13 06:24:38,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-13 06:24:38,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:24:38,569 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:24:38,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-13 06:24:38,570 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:24:38,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:24:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1554429938, now seen corresponding path program 1 times [2024-10-13 06:24:38,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:24:38,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902635629] [2024-10-13 06:24:38,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:24:38,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:24:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:24:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:24:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 06:24:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-13 06:24:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:24:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-13 06:24:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-13 06:24:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:24:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 06:24:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-13 06:24:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:24:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:24:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:24:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:24:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:24:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:24:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:24:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:24:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:24:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:24:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:24:38,965 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-13 06:24:38,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:24:38,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902635629] [2024-10-13 06:24:38,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902635629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:24:38,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:24:38,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:24:38,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283421756] [2024-10-13 06:24:38,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:24:38,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:24:38,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:24:38,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:24:38,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:24:38,967 INFO L87 Difference]: Start difference. First operand 5887 states and 6668 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20)