./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-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-53.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 8e24809269f51bce916d93021d3fd241dd9f82f81ed2d62c2bdb32d3cd025077 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:39:06,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:39:06,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:39:06,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:39:06,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:39:06,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:39:06,852 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:39:06,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:39:06,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:39:06,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:39:06,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:39:06,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:39:06,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:39:06,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:39:06,860 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:39:06,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:39:06,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:39:06,861 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:39:06,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:39:06,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:39:06,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:39:06,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:39:06,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:39:06,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:39:06,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:39:06,863 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:39:06,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:39:06,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:39:06,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:39:06,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:39:06,865 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:39:06,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:39:06,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:39:06,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:39:06,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:39:06,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:39:06,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:39:06,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:39:06,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:39:06,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:39:06,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:39:06,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:39:06,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e24809269f51bce916d93021d3fd241dd9f82f81ed2d62c2bdb32d3cd025077 [2024-10-24 11:39:07,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:39:07,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:39:07,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:39:07,163 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:39:07,164 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:39:07,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-53.i [2024-10-24 11:39:08,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:39:08,946 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:39:08,946 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-53.i [2024-10-24 11:39:08,961 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/307a377a0/471a2e45493946bdba85fecd00985a1e/FLAG01aa880dc [2024-10-24 11:39:09,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/307a377a0/471a2e45493946bdba85fecd00985a1e [2024-10-24 11:39:09,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:39:09,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:39:09,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:39:09,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:39:09,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:39:09,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27858da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09, skipping insertion in model container [2024-10-24 11:39:09,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,346 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:39:09,528 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-53.i[916,929] [2024-10-24 11:39:09,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:39:09,612 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:39:09,626 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-53.i[916,929] [2024-10-24 11:39:09,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:39:09,708 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:39:09,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09 WrapperNode [2024-10-24 11:39:09,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:39:09,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:39:09,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:39:09,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:39:09,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,776 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 528 [2024-10-24 11:39:09,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:39:09,781 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:39:09,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:39:09,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:39:09,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,831 INFO L175 MemorySlicer]: Split 133 memory accesses to 16 slices as follows [2, 3, 12, 12, 6, 5, 10, 7, 10, 10, 12, 17, 6, 10, 5, 6]. 13 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 18 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 2, 1]. [2024-10-24 11:39:09,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,831 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:39:09,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:39:09,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:39:09,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:39:09,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (1/1) ... [2024-10-24 11:39:09,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:39:09,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:39:09,982 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) [2024-10-24 11:39:09,986 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 [2024-10-24 11:39:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:39:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 11:39:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 11:39:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-24 11:39:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-24 11:39:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-24 11:39:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-24 11:39:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-10-24 11:39:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-10-24 11:39:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-10-24 11:39:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-10-24 11:39:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:39:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:39:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 11:39:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 11:39:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 11:39:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-24 11:39:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-24 11:39:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-24 11:39:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-24 11:39:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-24 11:39:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 11:39:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-24 11:39:10,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:39:10,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-24 11:39:10,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-10-24 11:39:10,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:39:10,048 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:39:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:39:10,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:39:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 11:39:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 11:39:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 11:39:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-24 11:39:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-24 11:39:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-24 11:39:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-24 11:39:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-24 11:39:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:39:10,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:39:10,265 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:39:10,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:39:10,825 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-10-24 11:39:10,825 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:39:10,860 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:39:10,861 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:39:10,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:10 BoogieIcfgContainer [2024-10-24 11:39:10,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:39:10,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:39:10,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:39:10,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:39:10,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:39:09" (1/3) ... [2024-10-24 11:39:10,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a7bee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:10, skipping insertion in model container [2024-10-24 11:39:10,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:09" (2/3) ... [2024-10-24 11:39:10,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50a7bee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:10, skipping insertion in model container [2024-10-24 11:39:10,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:10" (3/3) ... [2024-10-24 11:39:10,870 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-53.i [2024-10-24 11:39:10,887 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:39:10,887 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:39:10,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:39:10,954 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;@257538eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:39:10,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:39:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:39:10,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:10,975 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:10,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:10,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:10,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1079870598, now seen corresponding path program 1 times [2024-10-24 11:39:11,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:11,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938309418] [2024-10-24 11:39:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:11,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:11,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:11,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938309418] [2024-10-24 11:39:11,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938309418] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:11,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:11,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:39:11,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167057693] [2024-10-24 11:39:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:11,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:39:11,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:11,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:39:11,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:39:11,639 INFO L87 Difference]: Start difference. First operand has 105 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 85 states have internal predecessors, (121), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:39:11,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:11,695 INFO L93 Difference]: Finished difference Result 207 states and 330 transitions. [2024-10-24 11:39:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:39:11,698 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 135 [2024-10-24 11:39:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:11,710 INFO L225 Difference]: With dead ends: 207 [2024-10-24 11:39:11,711 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 11:39:11,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:39:11,722 INFO L432 NwaCegarLoop]: 146 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, 146 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 [2024-10-24 11:39:11,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:11,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 11:39:11,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 11:39:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 83 states have internal predecessors, (114), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:11,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2024-10-24 11:39:11,790 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 135 [2024-10-24 11:39:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:11,791 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2024-10-24 11:39:11,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-24 11:39:11,792 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2024-10-24 11:39:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:39:11,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:11,797 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:11,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:39:11,798 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:11,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:11,799 INFO L85 PathProgramCache]: Analyzing trace with hash -148898342, now seen corresponding path program 1 times [2024-10-24 11:39:11,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:11,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140901337] [2024-10-24 11:39:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:12,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:12,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140901337] [2024-10-24 11:39:12,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140901337] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:12,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:12,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 11:39:12,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357770115] [2024-10-24 11:39:12,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:12,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 11:39:12,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:12,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 11:39:12,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:39:12,507 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:12,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:12,551 INFO L93 Difference]: Finished difference Result 205 states and 299 transitions. [2024-10-24 11:39:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 11:39:12,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-24 11:39:12,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:12,554 INFO L225 Difference]: With dead ends: 205 [2024-10-24 11:39:12,554 INFO L226 Difference]: Without dead ends: 103 [2024-10-24 11:39:12,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 11:39:12,556 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:12,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 285 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-24 11:39:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-24 11:39:12,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-10-24 11:39:12,568 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 135 [2024-10-24 11:39:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:12,569 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-10-24 11:39:12,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-10-24 11:39:12,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:39:12,572 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:12,572 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:12,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:39:12,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:12,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:12,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1428762020, now seen corresponding path program 1 times [2024-10-24 11:39:12,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:12,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514430796] [2024-10-24 11:39:12,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:12,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:13,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:13,734 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:13,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:13,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514430796] [2024-10-24 11:39:13,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514430796] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:13,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:13,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:39:13,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758331222] [2024-10-24 11:39:13,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:13,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:39:13,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:39:13,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:39:13,740 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:39:14,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:14,072 INFO L93 Difference]: Finished difference Result 211 states and 303 transitions. [2024-10-24 11:39:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:39:14,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 135 [2024-10-24 11:39:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:14,075 INFO L225 Difference]: With dead ends: 211 [2024-10-24 11:39:14,075 INFO L226 Difference]: Without dead ends: 109 [2024-10-24 11:39:14,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-10-24 11:39:14,081 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 320 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:14,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 519 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:39:14,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-24 11:39:14,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-24 11:39:14,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2024-10-24 11:39:14,103 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 135 [2024-10-24 11:39:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:14,106 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2024-10-24 11:39:14,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-24 11:39:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2024-10-24 11:39:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 11:39:14,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:14,111 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:14,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:39:14,112 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:14,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1821789030, now seen corresponding path program 1 times [2024-10-24 11:39:14,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:14,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816937364] [2024-10-24 11:39:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:15,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:15,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:15,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:15,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816937364] [2024-10-24 11:39:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816937364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:15,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:15,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:15,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953182691] [2024-10-24 11:39:15,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:15,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:15,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:15,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:15,317 INFO L87 Difference]: Start difference. First operand 109 states and 154 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:15,555 INFO L93 Difference]: Finished difference Result 324 states and 458 transitions. [2024-10-24 11:39:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:15,556 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 135 [2024-10-24 11:39:15,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:15,559 INFO L225 Difference]: With dead ends: 324 [2024-10-24 11:39:15,559 INFO L226 Difference]: Without dead ends: 216 [2024-10-24 11:39:15,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:39:15,561 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 94 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:15,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 562 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:39:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-10-24 11:39:15,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 211. [2024-10-24 11:39:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 170 states have internal predecessors, (228), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-10-24 11:39:15,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 300 transitions. [2024-10-24 11:39:15,597 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 300 transitions. Word has length 135 [2024-10-24 11:39:15,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:15,598 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 300 transitions. [2024-10-24 11:39:15,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:15,598 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 300 transitions. [2024-10-24 11:39:15,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 11:39:15,600 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:15,600 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:15,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:39:15,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:15,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:15,601 INFO L85 PathProgramCache]: Analyzing trace with hash 668833267, now seen corresponding path program 1 times [2024-10-24 11:39:15,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:15,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892968522] [2024-10-24 11:39:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:15,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:17,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:17,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:18,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:18,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892968522] [2024-10-24 11:39:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892968522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:18,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:18,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 11:39:18,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795410869] [2024-10-24 11:39:18,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:18,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 11:39:18,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 11:39:18,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:39:18,028 INFO L87 Difference]: Start difference. First operand 211 states and 300 transitions. Second operand has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:39:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:18,970 INFO L93 Difference]: Finished difference Result 318 states and 451 transitions. [2024-10-24 11:39:18,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:39:18,971 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) Word has length 137 [2024-10-24 11:39:18,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:18,973 INFO L225 Difference]: With dead ends: 318 [2024-10-24 11:39:18,973 INFO L226 Difference]: Without dead ends: 210 [2024-10-24 11:39:18,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=550, Unknown=0, NotChecked=0, Total=702 [2024-10-24 11:39:18,975 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 611 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:18,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 787 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:39:18,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-10-24 11:39:18,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 107. [2024-10-24 11:39:18,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:18,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 150 transitions. [2024-10-24 11:39:19,000 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 150 transitions. Word has length 137 [2024-10-24 11:39:19,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:19,001 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 150 transitions. [2024-10-24 11:39:19,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 16 states have internal predecessors, (50), 6 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 5 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 11:39:19,002 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 150 transitions. [2024-10-24 11:39:19,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:39:19,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:19,003 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:19,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:39:19,006 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:19,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1993440470, now seen corresponding path program 1 times [2024-10-24 11:39:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:19,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262850304] [2024-10-24 11:39:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:19,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:19,440 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:19,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:19,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262850304] [2024-10-24 11:39:19,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262850304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:19,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:19,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:39:19,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543740153] [2024-10-24 11:39:19,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:19,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:39:19,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:19,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:39:19,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:39:19,443 INFO L87 Difference]: Start difference. First operand 107 states and 150 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:19,494 INFO L93 Difference]: Finished difference Result 213 states and 299 transitions. [2024-10-24 11:39:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:39:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:39:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:19,497 INFO L225 Difference]: With dead ends: 213 [2024-10-24 11:39:19,497 INFO L226 Difference]: Without dead ends: 107 [2024-10-24 11:39:19,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:39:19,498 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:19,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 410 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-10-24 11:39:19,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-10-24 11:39:19,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.313953488372093) internal successors, (113), 86 states have internal predecessors, (113), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 11:39:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2024-10-24 11:39:19,528 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 140 [2024-10-24 11:39:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:19,528 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2024-10-24 11:39:19,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2024-10-24 11:39:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-24 11:39:19,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:19,532 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:19,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 11:39:19,533 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:19,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:19,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1735275032, now seen corresponding path program 1 times [2024-10-24 11:39:19,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:19,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601450489] [2024-10-24 11:39:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:19,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:20,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:20,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:20,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:20,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601450489] [2024-10-24 11:39:20,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601450489] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:20,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:20,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:20,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506902011] [2024-10-24 11:39:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:20,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:20,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:20,193 INFO L87 Difference]: Start difference. First operand 107 states and 149 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:20,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:20,333 INFO L93 Difference]: Finished difference Result 289 states and 399 transitions. [2024-10-24 11:39:20,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:20,334 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-10-24 11:39:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:20,336 INFO L225 Difference]: With dead ends: 289 [2024-10-24 11:39:20,336 INFO L226 Difference]: Without dead ends: 183 [2024-10-24 11:39:20,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:39:20,339 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 90 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:20,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 897 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:39:20,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-10-24 11:39:20,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2024-10-24 11:39:20,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 147 states have (on average 1.3061224489795917) internal successors, (192), 148 states have internal predecessors, (192), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-24 11:39:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 248 transitions. [2024-10-24 11:39:20,363 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 248 transitions. Word has length 140 [2024-10-24 11:39:20,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:20,364 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 248 transitions. [2024-10-24 11:39:20,364 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:20,364 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 248 transitions. [2024-10-24 11:39:20,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:39:20,366 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:20,366 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:20,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 11:39:20,366 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:20,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:20,367 INFO L85 PathProgramCache]: Analyzing trace with hash -292630820, now seen corresponding path program 1 times [2024-10-24 11:39:20,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:20,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913535752] [2024-10-24 11:39:20,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:21,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:21,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:21,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:21,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:21,963 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:21,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:21,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913535752] [2024-10-24 11:39:21,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913535752] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:21,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:21,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 11:39:21,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544529042] [2024-10-24 11:39:21,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:21,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:39:21,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:21,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:39:21,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 11:39:21,966 INFO L87 Difference]: Start difference. First operand 180 states and 248 transitions. Second operand has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:39:22,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:22,925 INFO L93 Difference]: Finished difference Result 588 states and 810 transitions. [2024-10-24 11:39:22,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 11:39:22,926 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-10-24 11:39:22,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:22,932 INFO L225 Difference]: With dead ends: 588 [2024-10-24 11:39:22,933 INFO L226 Difference]: Without dead ends: 409 [2024-10-24 11:39:22,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2024-10-24 11:39:22,936 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 226 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:22,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 1479 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:39:22,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-24 11:39:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 402. [2024-10-24 11:39:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 334 states have (on average 1.3203592814371257) internal successors, (441), 337 states have internal predecessors, (441), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 557 transitions. [2024-10-24 11:39:23,015 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 557 transitions. Word has length 141 [2024-10-24 11:39:23,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:23,016 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 557 transitions. [2024-10-24 11:39:23,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 13 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:39:23,016 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 557 transitions. [2024-10-24 11:39:23,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:39:23,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:23,019 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:23,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 11:39:23,019 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:23,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:23,020 INFO L85 PathProgramCache]: Analyzing trace with hash -685657830, now seen corresponding path program 1 times [2024-10-24 11:39:23,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:23,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321656669] [2024-10-24 11:39:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:23,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:23,546 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:23,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:23,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321656669] [2024-10-24 11:39:23,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321656669] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:23,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:23,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:23,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297121669] [2024-10-24 11:39:23,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:23,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:23,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:23,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:23,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:23,548 INFO L87 Difference]: Start difference. First operand 402 states and 557 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:23,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:23,692 INFO L93 Difference]: Finished difference Result 915 states and 1264 transitions. [2024-10-24 11:39:23,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:23,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-24 11:39:23,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:23,698 INFO L225 Difference]: With dead ends: 915 [2024-10-24 11:39:23,698 INFO L226 Difference]: Without dead ends: 514 [2024-10-24 11:39:23,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:39:23,701 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 48 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:23,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 699 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:39:23,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-24 11:39:23,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2024-10-24 11:39:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 360 states have (on average 1.3055555555555556) internal successors, (470), 363 states have internal predecessors, (470), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:23,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 586 transitions. [2024-10-24 11:39:23,753 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 586 transitions. Word has length 141 [2024-10-24 11:39:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:23,754 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 586 transitions. [2024-10-24 11:39:23,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 586 transitions. [2024-10-24 11:39:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:39:23,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:23,756 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:23,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 11:39:23,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:23,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:23,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1981574562, now seen corresponding path program 1 times [2024-10-24 11:39:23,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:23,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967053778] [2024-10-24 11:39:23,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:23,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:24,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:24,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:24,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:24,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967053778] [2024-10-24 11:39:24,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967053778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:24,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:24,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637830603] [2024-10-24 11:39:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:24,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:24,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:24,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:24,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:24,207 INFO L87 Difference]: Start difference. First operand 428 states and 586 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:24,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:24,352 INFO L93 Difference]: Finished difference Result 941 states and 1289 transitions. [2024-10-24 11:39:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:24,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-24 11:39:24,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:24,360 INFO L225 Difference]: With dead ends: 941 [2024-10-24 11:39:24,361 INFO L226 Difference]: Without dead ends: 514 [2024-10-24 11:39:24,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:39:24,362 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 48 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:24,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 790 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:39:24,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-24 11:39:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 428. [2024-10-24 11:39:24,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 360 states have (on average 1.2944444444444445) internal successors, (466), 363 states have internal predecessors, (466), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 582 transitions. [2024-10-24 11:39:24,413 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 582 transitions. Word has length 141 [2024-10-24 11:39:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:24,413 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 582 transitions. [2024-10-24 11:39:24,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 582 transitions. [2024-10-24 11:39:24,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-24 11:39:24,416 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:24,416 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:24,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 11:39:24,417 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:24,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:24,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1920365724, now seen corresponding path program 1 times [2024-10-24 11:39:24,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:24,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195580455] [2024-10-24 11:39:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:24,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:25,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:25,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:25,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:25,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195580455] [2024-10-24 11:39:25,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195580455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:25,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:25,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:39:25,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036038674] [2024-10-24 11:39:25,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:25,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:39:25,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:25,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:39:25,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:39:25,288 INFO L87 Difference]: Start difference. First operand 428 states and 582 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:25,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:25,739 INFO L93 Difference]: Finished difference Result 862 states and 1168 transitions. [2024-10-24 11:39:25,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 11:39:25,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-10-24 11:39:25,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:25,743 INFO L225 Difference]: With dead ends: 862 [2024-10-24 11:39:25,743 INFO L226 Difference]: Without dead ends: 435 [2024-10-24 11:39:25,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:39:25,745 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 143 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:25,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1268 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:39:25,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2024-10-24 11:39:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 428. [2024-10-24 11:39:25,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 360 states have (on average 1.2916666666666667) internal successors, (465), 363 states have internal predecessors, (465), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:25,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 581 transitions. [2024-10-24 11:39:25,793 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 581 transitions. Word has length 141 [2024-10-24 11:39:25,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:25,794 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 581 transitions. [2024-10-24 11:39:25,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:25,794 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 581 transitions. [2024-10-24 11:39:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:39:25,795 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:25,795 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:25,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 11:39:25,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:25,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash -733823082, now seen corresponding path program 1 times [2024-10-24 11:39:25,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:25,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189731508] [2024-10-24 11:39:25,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:26,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:26,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:26,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:26,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189731508] [2024-10-24 11:39:26,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189731508] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:26,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:26,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:39:26,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816636619] [2024-10-24 11:39:26,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:26,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:39:26,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:26,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:39:26,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:39:26,067 INFO L87 Difference]: Start difference. First operand 428 states and 581 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:26,135 INFO L93 Difference]: Finished difference Result 870 states and 1181 transitions. [2024-10-24 11:39:26,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:39:26,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 11:39:26,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:26,139 INFO L225 Difference]: With dead ends: 870 [2024-10-24 11:39:26,139 INFO L226 Difference]: Without dead ends: 443 [2024-10-24 11:39:26,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:39:26,141 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:26,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 546 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:26,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-10-24 11:39:26,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-10-24 11:39:26,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 375 states have (on average 1.28) internal successors, (480), 378 states have internal predecessors, (480), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:26,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 596 transitions. [2024-10-24 11:39:26,184 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 596 transitions. Word has length 142 [2024-10-24 11:39:26,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:26,184 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 596 transitions. [2024-10-24 11:39:26,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:26,184 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 596 transitions. [2024-10-24 11:39:26,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-24 11:39:26,186 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:26,186 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:26,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 11:39:26,186 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:26,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash 408792204, now seen corresponding path program 1 times [2024-10-24 11:39:26,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:26,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776117076] [2024-10-24 11:39:26,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:26,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:26,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:26,453 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:26,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:26,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776117076] [2024-10-24 11:39:26,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776117076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:26,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:26,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:26,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608665332] [2024-10-24 11:39:26,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:26,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:26,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:26,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:26,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:26,457 INFO L87 Difference]: Start difference. First operand 443 states and 596 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:26,539 INFO L93 Difference]: Finished difference Result 905 states and 1216 transitions. [2024-10-24 11:39:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:26,540 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-10-24 11:39:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:26,545 INFO L225 Difference]: With dead ends: 905 [2024-10-24 11:39:26,545 INFO L226 Difference]: Without dead ends: 463 [2024-10-24 11:39:26,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:26,548 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:26,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 688 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:26,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-10-24 11:39:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 457. [2024-10-24 11:39:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 389 states have (on average 1.2699228791773778) internal successors, (494), 392 states have internal predecessors, (494), 58 states have call successors, (58), 9 states have call predecessors, (58), 9 states have return successors, (58), 55 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-24 11:39:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 610 transitions. [2024-10-24 11:39:26,602 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 610 transitions. Word has length 142 [2024-10-24 11:39:26,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:26,602 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 610 transitions. [2024-10-24 11:39:26,602 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:26,602 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 610 transitions. [2024-10-24 11:39:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:39:26,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:26,605 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:26,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 11:39:26,605 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:26,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:26,606 INFO L85 PathProgramCache]: Analyzing trace with hash -555710091, now seen corresponding path program 1 times [2024-10-24 11:39:26,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:26,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686008424] [2024-10-24 11:39:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:26,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:28,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:28,315 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:28,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:28,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686008424] [2024-10-24 11:39:28,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686008424] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:28,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:28,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 11:39:28,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506971646] [2024-10-24 11:39:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:28,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 11:39:28,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:28,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 11:39:28,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:39:28,318 INFO L87 Difference]: Start difference. First operand 457 states and 610 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:39:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:29,672 INFO L93 Difference]: Finished difference Result 711 states and 946 transitions. [2024-10-24 11:39:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:39:29,675 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 143 [2024-10-24 11:39:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:29,678 INFO L225 Difference]: With dead ends: 711 [2024-10-24 11:39:29,678 INFO L226 Difference]: Without dead ends: 501 [2024-10-24 11:39:29,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=537, Unknown=0, NotChecked=0, Total=650 [2024-10-24 11:39:29,680 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 295 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:29,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 1365 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 11:39:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-10-24 11:39:29,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2024-10-24 11:39:29,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 426 states have (on average 1.2699530516431925) internal successors, (541), 430 states have internal predecessors, (541), 60 states have call successors, (60), 10 states have call predecessors, (60), 10 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-24 11:39:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 661 transitions. [2024-10-24 11:39:29,729 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 661 transitions. Word has length 143 [2024-10-24 11:39:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:29,730 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 661 transitions. [2024-10-24 11:39:29,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-10-24 11:39:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 661 transitions. [2024-10-24 11:39:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-24 11:39:29,732 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:29,733 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:29,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 11:39:29,733 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:29,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:29,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1657286453, now seen corresponding path program 1 times [2024-10-24 11:39:29,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:29,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639729200] [2024-10-24 11:39:29,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:29,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:30,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:30,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:30,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:30,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:30,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:30,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639729200] [2024-10-24 11:39:30,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639729200] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:30,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:30,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 11:39:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654130283] [2024-10-24 11:39:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:30,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 11:39:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:30,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 11:39:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-24 11:39:30,478 INFO L87 Difference]: Start difference. First operand 497 states and 661 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:30,778 INFO L93 Difference]: Finished difference Result 750 states and 995 transitions. [2024-10-24 11:39:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 11:39:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-10-24 11:39:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:30,781 INFO L225 Difference]: With dead ends: 750 [2024-10-24 11:39:30,781 INFO L226 Difference]: Without dead ends: 500 [2024-10-24 11:39:30,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-24 11:39:30,784 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 50 mSDsluCounter, 981 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1162 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:30,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1162 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:39:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2024-10-24 11:39:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 251. [2024-10-24 11:39:30,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 217 states have internal predecessors, (272), 30 states have call successors, (30), 5 states have call predecessors, (30), 5 states have return successors, (30), 28 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-24 11:39:30,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 332 transitions. [2024-10-24 11:39:30,812 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 332 transitions. Word has length 143 [2024-10-24 11:39:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:30,812 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 332 transitions. [2024-10-24 11:39:30,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:30,812 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 332 transitions. [2024-10-24 11:39:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:39:30,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:30,814 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:30,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 11:39:30,815 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:30,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1444241647, now seen corresponding path program 1 times [2024-10-24 11:39:30,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:30,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34594739] [2024-10-24 11:39:30,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:30,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:30,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:31,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:31,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:31,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:31,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:31,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:31,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34594739] [2024-10-24 11:39:31,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34594739] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:31,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:31,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:39:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977964772] [2024-10-24 11:39:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:31,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:39:31,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:31,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:39:31,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:39:31,279 INFO L87 Difference]: Start difference. First operand 251 states and 332 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:31,427 INFO L93 Difference]: Finished difference Result 664 states and 872 transitions. [2024-10-24 11:39:31,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:39:31,428 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 11:39:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:31,431 INFO L225 Difference]: With dead ends: 664 [2024-10-24 11:39:31,431 INFO L226 Difference]: Without dead ends: 414 [2024-10-24 11:39:31,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:31,433 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 56 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:31,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 536 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:39:31,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-10-24 11:39:31,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 353. [2024-10-24 11:39:31,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 314 states have (on average 1.2707006369426752) internal successors, (399), 317 states have internal predecessors, (399), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:39:31,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 463 transitions. [2024-10-24 11:39:31,464 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 463 transitions. Word has length 144 [2024-10-24 11:39:31,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:31,465 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 463 transitions. [2024-10-24 11:39:31,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:31,465 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 463 transitions. [2024-10-24 11:39:31,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:39:31,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:31,467 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:31,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 11:39:31,467 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:31,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:31,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1355038757, now seen corresponding path program 1 times [2024-10-24 11:39:31,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:31,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167531219] [2024-10-24 11:39:31,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:31,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:32,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,451 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:32,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:32,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167531219] [2024-10-24 11:39:32,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167531219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:32,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:32,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 11:39:32,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109312078] [2024-10-24 11:39:32,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:32,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 11:39:32,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:32,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 11:39:32,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 11:39:32,453 INFO L87 Difference]: Start difference. First operand 353 states and 463 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:32,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:32,627 INFO L93 Difference]: Finished difference Result 692 states and 902 transitions. [2024-10-24 11:39:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 11:39:32,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 11:39:32,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:32,631 INFO L225 Difference]: With dead ends: 692 [2024-10-24 11:39:32,631 INFO L226 Difference]: Without dead ends: 690 [2024-10-24 11:39:32,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 11:39:32,632 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 93 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:32,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 851 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 11:39:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-10-24 11:39:32,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 518. [2024-10-24 11:39:32,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 479 states have (on average 1.2713987473903967) internal successors, (609), 482 states have internal predecessors, (609), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:39:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 673 transitions. [2024-10-24 11:39:32,674 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 673 transitions. Word has length 144 [2024-10-24 11:39:32,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:32,675 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 673 transitions. [2024-10-24 11:39:32,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 673 transitions. [2024-10-24 11:39:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-10-24 11:39:32,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:32,677 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:32,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 11:39:32,677 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:32,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:32,678 INFO L85 PathProgramCache]: Analyzing trace with hash 815036033, now seen corresponding path program 1 times [2024-10-24 11:39:32,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:32,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618385073] [2024-10-24 11:39:32,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:32,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:32,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:32,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:32,920 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:32,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:32,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618385073] [2024-10-24 11:39:32,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618385073] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:32,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:32,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:39:32,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445053969] [2024-10-24 11:39:32,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:32,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:39:32,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:32,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:39:32,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:39:32,922 INFO L87 Difference]: Start difference. First operand 518 states and 673 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:33,001 INFO L93 Difference]: Finished difference Result 1087 states and 1405 transitions. [2024-10-24 11:39:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 11:39:33,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-10-24 11:39:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:33,004 INFO L225 Difference]: With dead ends: 1087 [2024-10-24 11:39:33,005 INFO L226 Difference]: Without dead ends: 570 [2024-10-24 11:39:33,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:39:33,006 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:33,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 821 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:39:33,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-10-24 11:39:33,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 526. [2024-10-24 11:39:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 487 states have (on average 1.26694045174538) internal successors, (617), 490 states have internal predecessors, (617), 32 states have call successors, (32), 6 states have call predecessors, (32), 6 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:39:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 681 transitions. [2024-10-24 11:39:33,043 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 681 transitions. Word has length 144 [2024-10-24 11:39:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:33,044 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 681 transitions. [2024-10-24 11:39:33,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 681 transitions. [2024-10-24 11:39:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:39:33,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:33,045 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:33,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 11:39:33,046 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:33,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 726762273, now seen corresponding path program 1 times [2024-10-24 11:39:33,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:33,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408642063] [2024-10-24 11:39:33,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:33,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:33,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:33,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:33,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:39:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:33,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408642063] [2024-10-24 11:39:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408642063] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:39:33,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975853243] [2024-10-24 11:39:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:33,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:39:33,831 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) [2024-10-24 11:39:33,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:39:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:34,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 11:39:34,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:39:34,536 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 23 treesize of output 3 [2024-10-24 11:39:35,392 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 [2024-10-24 11:39:35,822 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 26 treesize of output 14 [2024-10-24 11:39:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 430 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2024-10-24 11:39:35,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:39:36,312 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 32 treesize of output 28 [2024-10-24 11:39:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975853243] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:39:36,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:39:36,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 28 [2024-10-24 11:39:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350967554] [2024-10-24 11:39:36,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:39:36,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-10-24 11:39:36,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-10-24 11:39:36,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2024-10-24 11:39:36,867 INFO L87 Difference]: Start difference. First operand 526 states and 681 transitions. Second operand has 28 states, 25 states have (on average 4.76) internal successors, (119), 24 states have internal predecessors, (119), 8 states have call successors, (36), 6 states have call predecessors, (36), 7 states have return successors, (36), 7 states have call predecessors, (36), 8 states have call successors, (36) [2024-10-24 11:39:38,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:38,208 INFO L93 Difference]: Finished difference Result 1058 states and 1365 transitions. [2024-10-24 11:39:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-24 11:39:38,209 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 4.76) internal successors, (119), 24 states have internal predecessors, (119), 8 states have call successors, (36), 6 states have call predecessors, (36), 7 states have return successors, (36), 7 states have call predecessors, (36), 8 states have call successors, (36) Word has length 146 [2024-10-24 11:39:38,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:38,212 INFO L225 Difference]: With dead ends: 1058 [2024-10-24 11:39:38,212 INFO L226 Difference]: Without dead ends: 533 [2024-10-24 11:39:38,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 893 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=764, Invalid=2896, Unknown=0, NotChecked=0, Total=3660 [2024-10-24 11:39:38,215 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 764 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:38,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1181 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:39:38,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2024-10-24 11:39:38,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 514. [2024-10-24 11:39:38,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 471 states have (on average 1.267515923566879) internal successors, (597), 474 states have internal predecessors, (597), 32 states have call successors, (32), 10 states have call predecessors, (32), 10 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 11:39:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 661 transitions. [2024-10-24 11:39:38,260 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 661 transitions. Word has length 146 [2024-10-24 11:39:38,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:38,260 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 661 transitions. [2024-10-24 11:39:38,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 4.76) internal successors, (119), 24 states have internal predecessors, (119), 8 states have call successors, (36), 6 states have call predecessors, (36), 7 states have return successors, (36), 7 states have call predecessors, (36), 8 states have call successors, (36) [2024-10-24 11:39:38,261 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 661 transitions. [2024-10-24 11:39:38,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-10-24 11:39:38,263 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:38,263 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:38,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 11:39:38,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:38,468 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:38,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:38,468 INFO L85 PathProgramCache]: Analyzing trace with hash -428319587, now seen corresponding path program 1 times [2024-10-24 11:39:38,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654881338] [2024-10-24 11:39:38,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:38,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:39,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:39,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:39,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:39:39,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654881338] [2024-10-24 11:39:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654881338] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:39:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071866669] [2024-10-24 11:39:39,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:39,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:39,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:39:39,405 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) [2024-10-24 11:39:39,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 11:39:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:39,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-10-24 11:39:39,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:39:40,028 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 [2024-10-24 11:39:40,318 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 [2024-10-24 11:39:41,081 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 [2024-10-24 11:39:41,586 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 9 treesize of output 5 [2024-10-24 11:39:41,659 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 25 treesize of output 17 [2024-10-24 11:39:41,723 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 17 treesize of output 9 [2024-10-24 11:39:41,770 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 9 proven. 431 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 11:39:41,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:39:41,939 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 16 treesize of output 12 [2024-10-24 11:39:42,338 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 32 treesize of output 28 [2024-10-24 11:39:42,733 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 44 treesize of output 40 [2024-10-24 11:39:42,983 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 32 treesize of output 28 [2024-10-24 11:39:43,036 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2024-10-24 11:39:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071866669] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 11:39:43,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 11:39:43,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 18, 19] total 46 [2024-10-24 11:39:43,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483450770] [2024-10-24 11:39:43,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 11:39:43,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-24 11:39:43,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-24 11:39:43,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=314, Invalid=1756, Unknown=0, NotChecked=0, Total=2070 [2024-10-24 11:39:43,040 INFO L87 Difference]: Start difference. First operand 514 states and 661 transitions. Second operand has 46 states, 41 states have (on average 4.2926829268292686) internal successors, (176), 44 states have internal predecessors, (176), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 8 states have call predecessors, (54), 13 states have call successors, (54) [2024-10-24 11:39:46,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:46,127 INFO L93 Difference]: Finished difference Result 1468 states and 1858 transitions. [2024-10-24 11:39:46,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-24 11:39:46,128 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 41 states have (on average 4.2926829268292686) internal successors, (176), 44 states have internal predecessors, (176), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 8 states have call predecessors, (54), 13 states have call successors, (54) Word has length 146 [2024-10-24 11:39:46,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:46,133 INFO L225 Difference]: With dead ends: 1468 [2024-10-24 11:39:46,133 INFO L226 Difference]: Without dead ends: 955 [2024-10-24 11:39:46,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1488, Invalid=6702, Unknown=0, NotChecked=0, Total=8190 [2024-10-24 11:39:46,137 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 1896 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:46,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 2178 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 11:39:46,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-10-24 11:39:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 676. [2024-10-24 11:39:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 595 states have (on average 1.253781512605042) internal successors, (746), 597 states have internal predecessors, (746), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 11:39:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 858 transitions. [2024-10-24 11:39:46,229 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 858 transitions. Word has length 146 [2024-10-24 11:39:46,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:46,230 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 858 transitions. [2024-10-24 11:39:46,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 41 states have (on average 4.2926829268292686) internal successors, (176), 44 states have internal predecessors, (176), 13 states have call successors, (54), 6 states have call predecessors, (54), 9 states have return successors, (54), 8 states have call predecessors, (54), 13 states have call successors, (54) [2024-10-24 11:39:46,230 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 858 transitions. [2024-10-24 11:39:46,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 11:39:46,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:46,232 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:46,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 11:39:46,433 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,SelfDestructingSolverStorable19 [2024-10-24 11:39:46,434 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:46,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:46,434 INFO L85 PathProgramCache]: Analyzing trace with hash 381697767, now seen corresponding path program 1 times [2024-10-24 11:39:46,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:46,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076041186] [2024-10-24 11:39:46,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:46,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:47,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:47,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:47,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,192 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 6 proven. 45 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-10-24 11:39:47,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076041186] [2024-10-24 11:39:47,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076041186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:39:47,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683318140] [2024-10-24 11:39:47,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:47,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:47,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:39:47,195 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:39:47,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 11:39:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:47,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 11:39:47,599 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:39:47,849 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 [2024-10-24 11:39:48,077 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 [2024-10-24 11:39:48,356 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 25 treesize of output 17 [2024-10-24 11:39:48,361 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 13 treesize of output 9 [2024-10-24 11:39:48,458 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 19 treesize of output 11 [2024-10-24 11:39:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 9 proven. 431 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2024-10-24 11:39:48,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:39:48,842 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 27 treesize of output 23 [2024-10-24 11:39:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 48 proven. 48 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-10-24 11:39:48,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683318140] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 11:39:48,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 11:39:48,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 11] total 33 [2024-10-24 11:39:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380554336] [2024-10-24 11:39:48,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 11:39:48,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-24 11:39:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-24 11:39:48,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 11:39:48,926 INFO L87 Difference]: Start difference. First operand 676 states and 858 transitions. Second operand has 33 states, 27 states have (on average 5.777777777777778) internal successors, (156), 31 states have internal predecessors, (156), 14 states have call successors, (54), 6 states have call predecessors, (54), 8 states have return successors, (54), 9 states have call predecessors, (54), 14 states have call successors, (54) [2024-10-24 11:39:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:50,688 INFO L93 Difference]: Finished difference Result 1435 states and 1794 transitions. [2024-10-24 11:39:50,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-24 11:39:50,689 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 27 states have (on average 5.777777777777778) internal successors, (156), 31 states have internal predecessors, (156), 14 states have call successors, (54), 6 states have call predecessors, (54), 8 states have return successors, (54), 9 states have call predecessors, (54), 14 states have call successors, (54) Word has length 147 [2024-10-24 11:39:50,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:50,693 INFO L225 Difference]: With dead ends: 1435 [2024-10-24 11:39:50,693 INFO L226 Difference]: Without dead ends: 760 [2024-10-24 11:39:50,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 307 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 633 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=673, Invalid=2749, Unknown=0, NotChecked=0, Total=3422 [2024-10-24 11:39:50,696 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 1107 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:50,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 975 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 11:39:50,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2024-10-24 11:39:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 624. [2024-10-24 11:39:50,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 537 states have (on average 1.217877094972067) internal successors, (654), 539 states have internal predecessors, (654), 56 states have call successors, (56), 30 states have call predecessors, (56), 30 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-24 11:39:50,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 766 transitions. [2024-10-24 11:39:50,807 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 766 transitions. Word has length 147 [2024-10-24 11:39:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:50,808 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 766 transitions. [2024-10-24 11:39:50,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 27 states have (on average 5.777777777777778) internal successors, (156), 31 states have internal predecessors, (156), 14 states have call successors, (54), 6 states have call predecessors, (54), 8 states have return successors, (54), 9 states have call predecessors, (54), 14 states have call successors, (54) [2024-10-24 11:39:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 766 transitions. [2024-10-24 11:39:50,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-24 11:39:50,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:50,810 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:50,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 11:39:51,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:51,011 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:51,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:51,012 INFO L85 PathProgramCache]: Analyzing trace with hash -105372650, now seen corresponding path program 1 times [2024-10-24 11:39:51,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:51,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984773512] [2024-10-24 11:39:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:51,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:51,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:51,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:51,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:51,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-10-24 11:39:51,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984773512] [2024-10-24 11:39:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984773512] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:39:51,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:39:51,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 11:39:51,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729354073] [2024-10-24 11:39:51,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:39:51,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:39:51,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:39:51,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:39:51,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-10-24 11:39:51,787 INFO L87 Difference]: Start difference. First operand 624 states and 766 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:39:52,269 INFO L93 Difference]: Finished difference Result 1162 states and 1419 transitions. [2024-10-24 11:39:52,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 11:39:52,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-10-24 11:39:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:39:52,274 INFO L225 Difference]: With dead ends: 1162 [2024-10-24 11:39:52,274 INFO L226 Difference]: Without dead ends: 782 [2024-10-24 11:39:52,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-10-24 11:39:52,276 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 99 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:39:52,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 1821 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:39:52,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-10-24 11:39:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 770. [2024-10-24 11:39:52,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 644 states have (on average 1.2065217391304348) internal successors, (777), 648 states have internal predecessors, (777), 80 states have call successors, (80), 45 states have call predecessors, (80), 45 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-10-24 11:39:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 937 transitions. [2024-10-24 11:39:52,399 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 937 transitions. Word has length 148 [2024-10-24 11:39:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:39:52,400 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 937 transitions. [2024-10-24 11:39:52,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-10-24 11:39:52,400 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 937 transitions. [2024-10-24 11:39:52,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-24 11:39:52,402 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:39:52,402 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:39:52,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 11:39:52,402 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:39:52,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:39:52,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1274258361, now seen corresponding path program 1 times [2024-10-24 11:39:52,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:39:52,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966302636] [2024-10-24 11:39:52,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:52,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:39:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:39:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:39:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:39:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:39:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:39:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:39:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:39:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-24 11:39:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-24 11:39:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 11:39:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 11:39:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:39:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:39:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:39:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:39:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:39:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:39:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:39:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 42 proven. 126 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-10-24 11:39:54,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:39:54,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966302636] [2024-10-24 11:39:54,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966302636] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:39:54,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473694633] [2024-10-24 11:39:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:39:54,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:39:54,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:39:54,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:39:54,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 11:39:55,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:39:55,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 74 conjuncts are in the unsatisfiable core [2024-10-24 11:39:55,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:39:55,765 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 [2024-10-24 11:39:56,227 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 [2024-10-24 11:39:57,062 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 [2024-10-24 11:39:57,801 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 18 proven. 488 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-24 11:39:57,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:39:58,232 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 64 treesize of output 60 [2024-10-24 11:39:59,404 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 154 treesize of output 142