./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX --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 05acb47e03e235712ff531dc9c262bde9a4e8849999fe7c0ae66487e3d96b2b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:52:46,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:52:46,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:52:46,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:52:46,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:52:46,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:52:46,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:52:46,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:52:46,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:52:46,890 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:52:46,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:52:46,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:52:46,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:52:46,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:52:46,893 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:52:46,897 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:52:46,898 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:52:46,898 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:52:46,898 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:52:46,899 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:52:46,899 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:52:46,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:52:46,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:52:46,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:52:46,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:52:46,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:52:46,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:52:46,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:52:46,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:52:46,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:52:46,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:52:46,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:52:46,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:46,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:52:46,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:52:46,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:52:46,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:52:46,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:52:46,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:52:46,909 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:52:46,910 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:52:46,910 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:52:46,910 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05acb47e03e235712ff531dc9c262bde9a4e8849999fe7c0ae66487e3d96b2b6 [2024-11-08 16:52:47,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:52:47,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:52:47,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:52:47,330 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:52:47,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:52:47,334 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i Unable to find full path for "g++" [2024-11-08 16:52:49,447 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:52:49,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:52:49,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i [2024-11-08 16:52:49,737 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/data/9e30dad52/20dff6c5261b48fc828a5fb352fe9ffd/FLAG044c0b785 [2024-11-08 16:52:50,056 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/data/9e30dad52/20dff6c5261b48fc828a5fb352fe9ffd [2024-11-08 16:52:50,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:52:50,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:52:50,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:50,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:52:50,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:52:50,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a0ffc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50, skipping insertion in model container [2024-11-08 16:52:50,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:52:50,405 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i[917,930] [2024-11-08 16:52:50,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:50,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:52:50,514 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-12.i[917,930] [2024-11-08 16:52:50,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:52:50,587 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:52:50,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50 WrapperNode [2024-11-08 16:52:50,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:52:50,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:50,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:52:50,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:52:50,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,702 INFO L138 Inliner]: procedures = 27, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 454 [2024-11-08 16:52:50,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:52:50,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:52:50,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:52:50,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:52:50,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,781 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 26 writes are split as follows [0, 26]. [2024-11-08 16:52:50,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,816 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:52:50,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:52:50,825 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:52:50,825 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:52:50,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (1/1) ... [2024-11-08 16:52:50,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:52:50,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:52:50,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:52:50,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:52:50,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 16:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 16:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:52:50,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:52:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:52:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:52:50,926 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 16:52:50,926 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 16:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:52:50,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:52:50,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:52:51,110 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:52:51,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:52:51,876 INFO L? ?]: Removed 131 outVars from TransFormulas that were not future-live. [2024-11-08 16:52:51,876 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:52:51,898 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:52:51,899 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:52:51,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:51 BoogieIcfgContainer [2024-11-08 16:52:51,899 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:52:51,902 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:52:51,902 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:52:51,906 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:52:51,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:52:50" (1/3) ... [2024-11-08 16:52:51,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f2cbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:51, skipping insertion in model container [2024-11-08 16:52:51,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:52:50" (2/3) ... [2024-11-08 16:52:51,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f2cbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:52:51, skipping insertion in model container [2024-11-08 16:52:51,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:52:51" (3/3) ... [2024-11-08 16:52:51,910 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-12.i [2024-11-08 16:52:51,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:52:51,953 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:52:52,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:52:52,050 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;@78a89c01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:52:52,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:52:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 16:52:52,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 16:52:52,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:52,070 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:52,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:52,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:52,076 INFO L85 PathProgramCache]: Analyzing trace with hash 604963724, now seen corresponding path program 1 times [2024-11-08 16:52:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:52,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009063871] [2024-11-08 16:52:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:52,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:52:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:52:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:52:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:52:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:52:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:52:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:52:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:52:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:52:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:52:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:52:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:52:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:52:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:52:52,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:52:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:52:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:52:52,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:52,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009063871] [2024-11-08 16:52:52,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009063871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:52,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:52,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:52:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953421564] [2024-11-08 16:52:52,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:52,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:52:52,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:52,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:52:52,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:52:52,631 INFO L87 Difference]: Start difference. First operand has 98 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 80 states have internal predecessors, (110), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:52:52,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:52:52,677 INFO L93 Difference]: Finished difference Result 183 states and 284 transitions. [2024-11-08 16:52:52,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:52:52,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 117 [2024-11-08 16:52:52,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:52:52,691 INFO L225 Difference]: With dead ends: 183 [2024-11-08 16:52:52,692 INFO L226 Difference]: Without dead ends: 88 [2024-11-08 16:52:52,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:52:52,701 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:52:52,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:52:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-08 16:52:52,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-08 16:52:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 16:52:52,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 123 transitions. [2024-11-08 16:52:52,774 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 123 transitions. Word has length 117 [2024-11-08 16:52:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:52:52,776 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 123 transitions. [2024-11-08 16:52:52,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:52:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 123 transitions. [2024-11-08 16:52:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 16:52:52,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:52,782 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:52,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:52:52,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:52,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:52,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1937294188, now seen corresponding path program 1 times [2024-11-08 16:52:52,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:52,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373603940] [2024-11-08 16:52:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:52,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:52:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:52:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:52:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:52:53,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:52:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:52:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:52:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:52:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:52:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:52:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:52:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:52:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:52:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:52:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:52:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:52:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,419 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:52:53,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:53,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373603940] [2024-11-08 16:52:53,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373603940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:53,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:53,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:52:53,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963464531] [2024-11-08 16:52:53,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:53,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:52:53,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:53,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:52:53,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:53,424 INFO L87 Difference]: Start difference. First operand 88 states and 123 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:52:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:52:53,487 INFO L93 Difference]: Finished difference Result 173 states and 243 transitions. [2024-11-08 16:52:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:52:53,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 117 [2024-11-08 16:52:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:52:53,491 INFO L225 Difference]: With dead ends: 173 [2024-11-08 16:52:53,494 INFO L226 Difference]: Without dead ends: 88 [2024-11-08 16:52:53,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:52:53,496 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:52:53,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:52:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-08 16:52:53,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-08 16:52:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 16:52:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 122 transitions. [2024-11-08 16:52:53,517 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 122 transitions. Word has length 117 [2024-11-08 16:52:53,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:52:53,519 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 122 transitions. [2024-11-08 16:52:53,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:52:53,520 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 122 transitions. [2024-11-08 16:52:53,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 16:52:53,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:53,523 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:53,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:52:53,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:53,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:53,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1312040714, now seen corresponding path program 1 times [2024-11-08 16:52:53,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:53,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630341098] [2024-11-08 16:52:53,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:53,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:52:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:52:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:52:53,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:52:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:52:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:52:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:52:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:52:53,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:52:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:52:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:52:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:52:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:52:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:52:53,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:52:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:52:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:53,920 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:52:53,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:53,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630341098] [2024-11-08 16:52:53,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630341098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:53,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:53,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:52:53,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576598116] [2024-11-08 16:52:53,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:53,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:52:53,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:53,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:52:53,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:52:53,925 INFO L87 Difference]: Start difference. First operand 88 states and 122 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:52:53,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:52:53,997 INFO L93 Difference]: Finished difference Result 176 states and 245 transitions. [2024-11-08 16:52:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:52:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 119 [2024-11-08 16:52:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:52:54,000 INFO L225 Difference]: With dead ends: 176 [2024-11-08 16:52:54,000 INFO L226 Difference]: Without dead ends: 91 [2024-11-08 16:52:54,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:52:54,007 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 461 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 [2024-11-08 16:52:54,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 461 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:52:54,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-08 16:52:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-08 16:52:54,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.273972602739726) internal successors, (93), 73 states have internal predecessors, (93), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 16:52:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 125 transitions. [2024-11-08 16:52:54,023 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 125 transitions. Word has length 119 [2024-11-08 16:52:54,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:52:54,025 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 125 transitions. [2024-11-08 16:52:54,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:52:54,025 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 125 transitions. [2024-11-08 16:52:54,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 16:52:54,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:54,028 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:54,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:52:54,029 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:54,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:54,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1412939342, now seen corresponding path program 1 times [2024-11-08 16:52:54,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:54,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849678895] [2024-11-08 16:52:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:52:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:52:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:52:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:52:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:52:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:52:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:52:55,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:55,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:52:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:52:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:52:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:52:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:52:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:52:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:52:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:52:56,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:52:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:52:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:52:56,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:52:56,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849678895] [2024-11-08 16:52:56,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849678895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:52:56,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:52:56,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:52:56,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953654312] [2024-11-08 16:52:56,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:52:56,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:52:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:52:56,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:52:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:52:56,082 INFO L87 Difference]: Start difference. First operand 91 states and 125 transitions. Second operand has 12 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:52:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:52:57,224 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2024-11-08 16:52:57,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:52:57,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 121 [2024-11-08 16:52:57,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:52:57,227 INFO L225 Difference]: With dead ends: 133 [2024-11-08 16:52:57,227 INFO L226 Difference]: Without dead ends: 131 [2024-11-08 16:52:57,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:52:57,230 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 378 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:52:57,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 496 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:52:57,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-08 16:52:57,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2024-11-08 16:52:57,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 98 states have internal predecessors, (125), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 16:52:57,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2024-11-08 16:52:57,249 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 121 [2024-11-08 16:52:57,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:52:57,249 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2024-11-08 16:52:57,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:52:57,250 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2024-11-08 16:52:57,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 16:52:57,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:52:57,253 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:52:57,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:52:57,253 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:52:57,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:52:57,254 INFO L85 PathProgramCache]: Analyzing trace with hash -469090732, now seen corresponding path program 1 times [2024-11-08 16:52:57,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:52:57,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481415011] [2024-11-08 16:52:57,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:52:57,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:52:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:53:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:53:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:53:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:53:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:53:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:53:00,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:53:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:00,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:53:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:53:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:53:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:53:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:53:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:53:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:53:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:53:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,161 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 108 proven. 36 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 16:53:01,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:01,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481415011] [2024-11-08 16:53:01,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481415011] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:01,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402684220] [2024-11-08 16:53:01,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:01,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:01,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:01,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:01,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:53:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:01,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 80 conjuncts are in the unsatisfiable core [2024-11-08 16:53:01,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:02,906 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 [2024-11-08 16:53:04,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:04,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:04,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:05,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:07,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:53:07,126 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-08 16:53:07,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2024-11-08 16:53:08,004 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 96 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-08 16:53:08,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:53:33,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402684220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:33,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:53:33,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 26] total 42 [2024-11-08 16:53:33,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834806755] [2024-11-08 16:53:33,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:53:33,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-08 16:53:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:53:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-08 16:53:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=2573, Unknown=0, NotChecked=0, Total=2862 [2024-11-08 16:53:33,669 INFO L87 Difference]: Start difference. First operand 116 states and 157 transitions. Second operand has 42 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 37 states have internal predecessors, (107), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 16:53:47,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:53:47,089 INFO L93 Difference]: Finished difference Result 241 states and 308 transitions. [2024-11-08 16:53:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 16:53:47,090 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 37 states have internal predecessors, (107), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) Word has length 122 [2024-11-08 16:53:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:53:47,093 INFO L225 Difference]: With dead ends: 241 [2024-11-08 16:53:47,093 INFO L226 Difference]: Without dead ends: 239 [2024-11-08 16:53:47,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 32.0s TimeCoverageRelationStatistics Valid=937, Invalid=5225, Unknown=0, NotChecked=0, Total=6162 [2024-11-08 16:53:47,098 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 638 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 2628 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:53:47,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 1226 Invalid, 2759 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [131 Valid, 2628 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-08 16:53:47,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-11-08 16:53:47,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 184. [2024-11-08 16:53:47,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 156 states have (on average 1.2564102564102564) internal successors, (196), 157 states have internal predecessors, (196), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 16:53:47,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 240 transitions. [2024-11-08 16:53:47,136 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 240 transitions. Word has length 122 [2024-11-08 16:53:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:53:47,137 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 240 transitions. [2024-11-08 16:53:47,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 34 states have (on average 3.1470588235294117) internal successors, (107), 37 states have internal predecessors, (107), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 16:53:47,138 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 240 transitions. [2024-11-08 16:53:47,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 16:53:47,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:53:47,141 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:53:47,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:53:47,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:47,346 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:53:47,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:53:47,346 INFO L85 PathProgramCache]: Analyzing trace with hash -2069665437, now seen corresponding path program 1 times [2024-11-08 16:53:47,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:53:47,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573616474] [2024-11-08 16:53:47,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:47,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:53:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:53:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:53:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:53:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:53:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:53:51,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:53:51,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:51,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:53:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:53:52,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:53:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:53:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:53:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:53:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:53:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:53:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:53:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:53:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 108 proven. 36 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 16:53:52,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:53:52,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573616474] [2024-11-08 16:53:52,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573616474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:53:52,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951532471] [2024-11-08 16:53:52,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:53:52,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:53:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:53:52,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:53:52,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:53:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:53:52,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 78 conjuncts are in the unsatisfiable core [2024-11-08 16:53:52,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:53:55,165 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 [2024-11-08 16:53:57,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:58,318 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:59,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:53:59,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:03,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:54:03,210 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-08 16:54:03,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2024-11-08 16:54:04,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:54:04,589 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-08 16:54:04,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 34 [2024-11-08 16:54:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 96 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-08 16:54:05,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:54:30,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951532471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:54:30,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:54:30,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 27] total 44 [2024-11-08 16:54:30,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039997686] [2024-11-08 16:54:30,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:54:30,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-08 16:54:30,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:54:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-08 16:54:30,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=2784, Unknown=2, NotChecked=0, Total=3080 [2024-11-08 16:54:30,302 INFO L87 Difference]: Start difference. First operand 184 states and 240 transitions. Second operand has 44 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 39 states have internal predecessors, (109), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 16:54:52,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:54:52,441 INFO L93 Difference]: Finished difference Result 341 states and 434 transitions. [2024-11-08 16:54:52,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-08 16:54:52,442 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 39 states have internal predecessors, (109), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) Word has length 123 [2024-11-08 16:54:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:54:52,445 INFO L225 Difference]: With dead ends: 341 [2024-11-08 16:54:52,445 INFO L226 Difference]: Without dead ends: 339 [2024-11-08 16:54:52,448 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1817 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=1250, Invalid=6580, Unknown=2, NotChecked=0, Total=7832 [2024-11-08 16:54:52,449 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 972 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 2590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:54:52,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 995 Invalid, 2590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2024-11-08 16:54:52,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-11-08 16:54:52,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 211. [2024-11-08 16:54:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 183 states have (on average 1.273224043715847) internal successors, (233), 184 states have internal predecessors, (233), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-08 16:54:52,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 277 transitions. [2024-11-08 16:54:52,487 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 277 transitions. Word has length 123 [2024-11-08 16:54:52,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:54:52,488 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 277 transitions. [2024-11-08 16:54:52,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 36 states have (on average 3.0277777777777777) internal successors, (109), 39 states have internal predecessors, (109), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 16:54:52,489 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 277 transitions. [2024-11-08 16:54:52,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 16:54:52,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:54:52,491 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:54:52,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:54:52,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:54:52,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:54:52,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:54:52,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1300617007, now seen corresponding path program 1 times [2024-11-08 16:54:52,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:54:52,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670461953] [2024-11-08 16:54:52,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:54:52,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:54:52,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:53,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:54:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:53,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:54:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:53,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:54:54,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:54:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:54:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:54:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:54:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:54:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:54:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:54:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:54:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:54:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:54:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:54:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:54:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:54:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 16:54:54,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:54:54,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670461953] [2024-11-08 16:54:54,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670461953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:54:54,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398916285] [2024-11-08 16:54:54,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:54:54,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:54:54,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:54:54,297 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:54:54,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:54:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:54:54,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 16:54:54,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:54:55,647 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 [2024-11-08 16:54:56,596 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:57,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:57,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:58,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:58,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:54:59,566 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 35 treesize of output 23 [2024-11-08 16:54:59,580 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 136 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-08 16:54:59,580 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:00,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398916285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:00,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:55:00,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-08 16:55:00,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452560607] [2024-11-08 16:55:00,059 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:00,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:55:00,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:55:00,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:55:00,061 INFO L87 Difference]: Start difference. First operand 211 states and 277 transitions. Second operand has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 15 states have internal predecessors, (88), 8 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 6 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-08 16:55:04,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:04,208 INFO L93 Difference]: Finished difference Result 443 states and 577 transitions. [2024-11-08 16:55:04,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:55:04,210 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 15 states have internal predecessors, (88), 8 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 6 states have call predecessors, (32), 8 states have call successors, (32) Word has length 124 [2024-11-08 16:55:04,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:04,214 INFO L225 Difference]: With dead ends: 443 [2024-11-08 16:55:04,214 INFO L226 Difference]: Without dead ends: 235 [2024-11-08 16:55:04,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:55:04,216 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 111 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:04,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 461 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 667 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 16:55:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-08 16:55:04,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 172. [2024-11-08 16:55:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.2551724137931035) internal successors, (182), 146 states have internal predecessors, (182), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 16:55:04,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2024-11-08 16:55:04,252 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 124 [2024-11-08 16:55:04,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:04,253 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2024-11-08 16:55:04,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.769230769230769) internal successors, (88), 15 states have internal predecessors, (88), 8 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 6 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-08 16:55:04,253 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2024-11-08 16:55:04,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 16:55:04,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:04,255 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:04,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:55:04,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:04,457 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:04,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:04,458 INFO L85 PathProgramCache]: Analyzing trace with hash -660771927, now seen corresponding path program 1 times [2024-11-08 16:55:04,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:04,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830995141] [2024-11-08 16:55:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:04,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:55:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:55:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:55:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:55:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:55:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:55:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:55:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:55:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:55:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:55:05,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:55:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:55:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:55:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:55:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:55:05,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:55:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:05,424 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:55:05,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:05,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830995141] [2024-11-08 16:55:05,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830995141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:55:05,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:55:05,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:55:05,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012684450] [2024-11-08 16:55:05,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:55:05,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:55:05,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:05,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:55:05,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:55:05,427 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:55:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:07,200 INFO L93 Difference]: Finished difference Result 351 states and 449 transitions. [2024-11-08 16:55:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:55:07,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 124 [2024-11-08 16:55:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:07,203 INFO L225 Difference]: With dead ends: 351 [2024-11-08 16:55:07,203 INFO L226 Difference]: Without dead ends: 195 [2024-11-08 16:55:07,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:55:07,205 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 155 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:07,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 301 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:55:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-08 16:55:07,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 172. [2024-11-08 16:55:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 145 states have (on average 1.2206896551724138) internal successors, (177), 146 states have internal predecessors, (177), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 16:55:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 217 transitions. [2024-11-08 16:55:07,246 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 217 transitions. Word has length 124 [2024-11-08 16:55:07,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:07,247 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 217 transitions. [2024-11-08 16:55:07,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:55:07,247 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 217 transitions. [2024-11-08 16:55:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 16:55:07,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:07,249 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:07,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:55:07,249 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:07,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:07,250 INFO L85 PathProgramCache]: Analyzing trace with hash -641293410, now seen corresponding path program 1 times [2024-11-08 16:55:07,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:07,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546289951] [2024-11-08 16:55:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:07,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:55:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:55:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:55:09,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:55:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:55:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:55:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:55:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:55:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:55:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:55:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:55:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:55:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:55:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:55:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:55:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:55:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:09,910 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 16:55:09,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:09,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546289951] [2024-11-08 16:55:09,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546289951] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:09,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457546135] [2024-11-08 16:55:09,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:09,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:09,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:55:09,913 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:09,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:55:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:10,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 16:55:10,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:12,155 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 [2024-11-08 16:55:13,673 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:14,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:16,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:17,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:18,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:19,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:55:19,590 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-11-08 16:55:19,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2024-11-08 16:55:20,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:55:20,739 INFO L349 Elim1Store]: treesize reduction 13, result has 48.0 percent of original size [2024-11-08 16:55:20,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 38 [2024-11-08 16:55:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 136 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-08 16:55:20,758 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:21,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457546135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:21,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:55:21,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-08 16:55:21,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90113384] [2024-11-08 16:55:21,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:21,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:55:21,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:21,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:55:21,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:55:21,329 INFO L87 Difference]: Start difference. First operand 172 states and 217 transitions. Second operand has 18 states, 16 states have (on average 6.25) internal successors, (100), 18 states have internal predecessors, (100), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 16:55:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:26,518 INFO L93 Difference]: Finished difference Result 367 states and 461 transitions. [2024-11-08 16:55:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:55:26,519 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.25) internal successors, (100), 18 states have internal predecessors, (100), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) Word has length 125 [2024-11-08 16:55:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:26,520 INFO L225 Difference]: With dead ends: 367 [2024-11-08 16:55:26,521 INFO L226 Difference]: Without dead ends: 211 [2024-11-08 16:55:26,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:55:26,523 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 254 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:26,523 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 432 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 16:55:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-08 16:55:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 191. [2024-11-08 16:55:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 164 states have (on average 1.2195121951219512) internal successors, (200), 165 states have internal predecessors, (200), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-08 16:55:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-08 16:55:26,569 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 125 [2024-11-08 16:55:26,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:26,570 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-08 16:55:26,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.25) internal successors, (100), 18 states have internal predecessors, (100), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 16:55:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-08 16:55:26,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 16:55:26,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:26,572 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:26,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 16:55:26,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:26,777 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:26,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash 126555817, now seen corresponding path program 1 times [2024-11-08 16:55:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:26,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966692153] [2024-11-08 16:55:26,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:26,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 16:55:26,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205863691] [2024-11-08 16:55:26,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:26,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:26,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:55:26,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:26,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:55:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:27,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 16:55:27,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:27,190 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 40 treesize of output 39 [2024-11-08 16:55:27,642 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 91 treesize of output 68 [2024-11-08 16:55:28,767 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 91 treesize of output 68 [2024-11-08 16:55:29,830 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 91 treesize of output 68 [2024-11-08 16:55:30,772 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 91 treesize of output 68 [2024-11-08 16:55:31,772 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 91 treesize of output 68 [2024-11-08 16:55:32,836 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 91 treesize of output 68 [2024-11-08 16:55:33,727 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 91 treesize of output 68 [2024-11-08 16:55:34,678 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 91 treesize of output 68 [2024-11-08 16:55:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 16:55:35,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966692153] [2024-11-08 16:55:36,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 16:55:36,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205863691] [2024-11-08 16:55:36,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205863691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:36,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:55:36,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-08 16:55:36,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362011520] [2024-11-08 16:55:36,145 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:36,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:55:36,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:36,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:55:36,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:55:36,146 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:55:37,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:37,536 INFO L93 Difference]: Finished difference Result 449 states and 564 transitions. [2024-11-08 16:55:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:55:37,537 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 126 [2024-11-08 16:55:37,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:37,539 INFO L225 Difference]: With dead ends: 449 [2024-11-08 16:55:37,539 INFO L226 Difference]: Without dead ends: 261 [2024-11-08 16:55:37,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 151 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:55:37,541 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 34 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:37,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 191 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:55:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-08 16:55:37,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 254. [2024-11-08 16:55:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 205 states have (on average 1.1853658536585365) internal successors, (243), 206 states have internal predecessors, (243), 36 states have call successors, (36), 12 states have call predecessors, (36), 12 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 16:55:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 315 transitions. [2024-11-08 16:55:37,616 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 315 transitions. Word has length 126 [2024-11-08 16:55:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:37,617 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 315 transitions. [2024-11-08 16:55:37,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:55:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 315 transitions. [2024-11-08 16:55:37,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 16:55:37,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:37,618 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:37,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:55:37,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:37,819 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:37,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:37,820 INFO L85 PathProgramCache]: Analyzing trace with hash -172563142, now seen corresponding path program 1 times [2024-11-08 16:55:37,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:37,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116995117] [2024-11-08 16:55:37,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:37,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:55:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:55:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:55:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:55:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:55:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:55:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:55:39,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:55:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:55:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:55:39,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:55:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:55:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:55:39,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:55:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:55:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:55:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:39,934 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 16:55:39,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:55:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116995117] [2024-11-08 16:55:39,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116995117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:39,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743260357] [2024-11-08 16:55:39,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:39,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:39,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:55:39,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:55:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:40,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-08 16:55:40,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:55:42,980 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 [2024-11-08 16:55:44,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:45,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:46,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:47,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 16:55:48,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:55:48,911 INFO L349 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2024-11-08 16:55:48,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 27 [2024-11-08 16:55:49,884 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 193 proven. 133 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-08 16:55:49,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:55:50,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743260357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:55:50,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 16:55:50,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-08 16:55:50,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346618635] [2024-11-08 16:55:50,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 16:55:50,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 16:55:50,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:55:50,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 16:55:50,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:55:50,509 INFO L87 Difference]: Start difference. First operand 254 states and 315 transitions. Second operand has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 16:55:55,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:55:55,665 INFO L93 Difference]: Finished difference Result 463 states and 573 transitions. [2024-11-08 16:55:55,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:55:55,666 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) Word has length 127 [2024-11-08 16:55:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:55:55,668 INFO L225 Difference]: With dead ends: 463 [2024-11-08 16:55:55,668 INFO L226 Difference]: Without dead ends: 275 [2024-11-08 16:55:55,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:55:55,670 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 359 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:55:55,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 447 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-08 16:55:55,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-08 16:55:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 262. [2024-11-08 16:55:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 210 states have (on average 1.1761904761904762) internal successors, (247), 211 states have internal predecessors, (247), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 16:55:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 323 transitions. [2024-11-08 16:55:55,735 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 323 transitions. Word has length 127 [2024-11-08 16:55:55,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:55:55,736 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 323 transitions. [2024-11-08 16:55:55,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 16:55:55,736 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 323 transitions. [2024-11-08 16:55:55,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 16:55:55,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:55:55,737 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:55:55,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 16:55:55,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-08 16:55:55,942 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:55:55,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:55:55,942 INFO L85 PathProgramCache]: Analyzing trace with hash -852621512, now seen corresponding path program 1 times [2024-11-08 16:55:55,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:55:55,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373143544] [2024-11-08 16:55:55,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:55,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:55:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 16:55:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912520653] [2024-11-08 16:55:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:55:56,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:55:56,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:55:56,083 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:55:56,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:55:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:55:56,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-08 16:55:56,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:04,293 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 [2024-11-08 16:56:05,432 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 [2024-11-08 16:56:06,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:56:06,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:56:06,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:56:06,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:56:07,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 16:56:07,139 INFO L349 Elim1Store]: treesize reduction 69, result has 9.2 percent of original size [2024-11-08 16:56:07,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 51 [2024-11-08 16:56:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 16:56:09,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:15,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373143544] [2024-11-08 16:56:15,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 16:56:15,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912520653] [2024-11-08 16:56:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912520653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:15,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:56:15,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-08 16:56:15,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790079711] [2024-11-08 16:56:15,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 16:56:15,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:56:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:15,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:56:15,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:56:15,264 INFO L87 Difference]: Start difference. First operand 262 states and 323 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:56:18,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:18,417 INFO L93 Difference]: Finished difference Result 484 states and 595 transitions. [2024-11-08 16:56:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:56:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2024-11-08 16:56:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:18,420 INFO L225 Difference]: With dead ends: 484 [2024-11-08 16:56:18,420 INFO L226 Difference]: Without dead ends: 288 [2024-11-08 16:56:18,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:56:18,422 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 219 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:18,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 181 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 307 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 16:56:18,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-08 16:56:18,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 273. [2024-11-08 16:56:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 221 states have (on average 1.16289592760181) internal successors, (257), 222 states have internal predecessors, (257), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 16:56:18,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 333 transitions. [2024-11-08 16:56:18,486 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 333 transitions. Word has length 127 [2024-11-08 16:56:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:18,486 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 333 transitions. [2024-11-08 16:56:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:56:18,487 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 333 transitions. [2024-11-08 16:56:18,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 16:56:18,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:18,487 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:18,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:56:18,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:18,688 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:18,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1197311138, now seen corresponding path program 1 times [2024-11-08 16:56:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:18,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691485637] [2024-11-08 16:56:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:18,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:56:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:56:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:56:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:56:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:56:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:56:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:56:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:56:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:56:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:56:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:56:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:56:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:56:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:56:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:56:20,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:56:20,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:56:20,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:20,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691485637] [2024-11-08 16:56:20,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691485637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:56:20,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:56:20,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:56:20,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714246714] [2024-11-08 16:56:20,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:56:20,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:56:20,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:20,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:56:20,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:56:20,233 INFO L87 Difference]: Start difference. First operand 273 states and 333 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:56:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:22,275 INFO L93 Difference]: Finished difference Result 476 states and 583 transitions. [2024-11-08 16:56:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:56:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2024-11-08 16:56:22,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:22,278 INFO L225 Difference]: With dead ends: 476 [2024-11-08 16:56:22,278 INFO L226 Difference]: Without dead ends: 269 [2024-11-08 16:56:22,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:56:22,280 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 139 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:22,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 290 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 16:56:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2024-11-08 16:56:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2024-11-08 16:56:22,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 215 states have (on average 1.158139534883721) internal successors, (249), 216 states have internal predecessors, (249), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 16:56:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 325 transitions. [2024-11-08 16:56:22,344 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 325 transitions. Word has length 127 [2024-11-08 16:56:22,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:22,345 INFO L471 AbstractCegarLoop]: Abstraction has 267 states and 325 transitions. [2024-11-08 16:56:22,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:56:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 325 transitions. [2024-11-08 16:56:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 16:56:22,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:22,346 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:22,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:56:22,347 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:22,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash 310766270, now seen corresponding path program 1 times [2024-11-08 16:56:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:22,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156601319] [2024-11-08 16:56:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 16:56:22,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559252231] [2024-11-08 16:56:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:22,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:22,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:56:22,493 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:56:22,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:56:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:22,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-08 16:56:22,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:56:22,788 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 40 treesize of output 39 [2024-11-08 16:56:23,258 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 91 treesize of output 68 [2024-11-08 16:56:24,211 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 91 treesize of output 68 [2024-11-08 16:56:25,113 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 91 treesize of output 68 [2024-11-08 16:56:26,071 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 91 treesize of output 68 [2024-11-08 16:56:27,018 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 91 treesize of output 68 [2024-11-08 16:56:27,951 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 91 treesize of output 68 [2024-11-08 16:56:28,927 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 91 treesize of output 68 [2024-11-08 16:56:29,877 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 91 treesize of output 68 [2024-11-08 16:56:30,773 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 91 treesize of output 68 [2024-11-08 16:56:31,123 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 101 treesize of output 73 [2024-11-08 16:56:31,243 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 16:56:31,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:56:31,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156601319] [2024-11-08 16:56:31,945 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 16:56:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559252231] [2024-11-08 16:56:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559252231] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:56:31,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:56:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-08 16:56:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895965284] [2024-11-08 16:56:31,946 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 16:56:31,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:56:31,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:56:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:56:31,947 INFO L87 Difference]: Start difference. First operand 267 states and 325 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:56:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:33,912 INFO L93 Difference]: Finished difference Result 506 states and 616 transitions. [2024-11-08 16:56:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:56:33,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2024-11-08 16:56:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:33,916 INFO L225 Difference]: With dead ends: 506 [2024-11-08 16:56:33,916 INFO L226 Difference]: Without dead ends: 305 [2024-11-08 16:56:33,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 142 SyntacticMatches, 7 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:56:33,918 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 31 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:33,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 360 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 16:56:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-08 16:56:33,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 279. [2024-11-08 16:56:33,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 227 states have (on average 1.1541850220264318) internal successors, (262), 228 states have internal predecessors, (262), 38 states have call successors, (38), 13 states have call predecessors, (38), 13 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 16:56:33,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions. [2024-11-08 16:56:33,986 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 128 [2024-11-08 16:56:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:33,986 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions. [2024-11-08 16:56:33,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 16:56:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions. [2024-11-08 16:56:33,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:56:33,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:33,988 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:34,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:56:34,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:56:34,193 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:34,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1271376265, now seen corresponding path program 1 times [2024-11-08 16:56:34,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:34,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463909899] [2024-11-08 16:56:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:34,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:56:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:56:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:56:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:56:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:56:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:56:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:56:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:56:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:56:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:56:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:56:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:56:38,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:56:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:56:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:56:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:56:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:38,452 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:56:38,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:38,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463909899] [2024-11-08 16:56:38,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463909899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:56:38,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:56:38,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 16:56:38,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447347245] [2024-11-08 16:56:38,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:56:38,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 16:56:38,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:38,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 16:56:38,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:56:38,455 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:56:44,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:44,353 INFO L93 Difference]: Finished difference Result 671 states and 821 transitions. [2024-11-08 16:56:44,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:56:44,354 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:56:44,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:44,357 INFO L225 Difference]: With dead ends: 671 [2024-11-08 16:56:44,357 INFO L226 Difference]: Without dead ends: 470 [2024-11-08 16:56:44,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:56:44,359 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 390 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:44,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 385 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 16:56:44,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-08 16:56:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 464. [2024-11-08 16:56:44,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 380 states have (on average 1.1789473684210525) internal successors, (448), 383 states have internal predecessors, (448), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 16:56:44,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 568 transitions. [2024-11-08 16:56:44,499 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 568 transitions. Word has length 129 [2024-11-08 16:56:44,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:44,500 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 568 transitions. [2024-11-08 16:56:44,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:56:44,500 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 568 transitions. [2024-11-08 16:56:44,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:56:44,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:44,502 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:44,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:56:44,502 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:44,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:44,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1664403275, now seen corresponding path program 1 times [2024-11-08 16:56:44,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:44,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868419141] [2024-11-08 16:56:44,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:44,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:56:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:56:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:56:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:56:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:56:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:56:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:56:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:56:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:56:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:56:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:56:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:56:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:56:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:56:49,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:56:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:56:49,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:56:49,871 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:56:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:56:49,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868419141] [2024-11-08 16:56:49,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868419141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:56:49,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:56:49,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:56:49,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640488300] [2024-11-08 16:56:49,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:56:49,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:56:49,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:56:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:56:49,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:56:49,875 INFO L87 Difference]: Start difference. First operand 464 states and 568 transitions. Second operand has 14 states, 12 states have (on average 4.333333333333333) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:56:56,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:56:56,728 INFO L93 Difference]: Finished difference Result 994 states and 1230 transitions. [2024-11-08 16:56:56,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:56:56,729 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 4.333333333333333) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:56:56,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:56:56,732 INFO L225 Difference]: With dead ends: 994 [2024-11-08 16:56:56,732 INFO L226 Difference]: Without dead ends: 616 [2024-11-08 16:56:56,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:56:56,734 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 246 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:56:56,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 479 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 16:56:56,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-08 16:56:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 490. [2024-11-08 16:56:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 406 states have (on average 1.1822660098522169) internal successors, (480), 409 states have internal predecessors, (480), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 57 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-08 16:56:56,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 600 transitions. [2024-11-08 16:56:56,938 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 600 transitions. Word has length 129 [2024-11-08 16:56:56,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:56:56,938 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 600 transitions. [2024-11-08 16:56:56,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 4.333333333333333) internal successors, (52), 14 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:56:56,939 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 600 transitions. [2024-11-08 16:56:56,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:56:56,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:56:56,941 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:56:56,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:56:56,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:56:56,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:56:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1119911840, now seen corresponding path program 1 times [2024-11-08 16:56:56,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:56:56,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620544892] [2024-11-08 16:56:56,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:56:56,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:56:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:57:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:57:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:57:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:57:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:57:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:57:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:57:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:57:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:57:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:57:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:57:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:57:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:57:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:57:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:57:02,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:57:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:02,322 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:57:02,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:02,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620544892] [2024-11-08 16:57:02,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620544892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:02,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:02,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 16:57:02,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084920411] [2024-11-08 16:57:02,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:02,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 16:57:02,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:02,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 16:57:02,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-08 16:57:02,326 INFO L87 Difference]: Start difference. First operand 490 states and 600 transitions. Second operand has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 16:57:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:11,051 INFO L93 Difference]: Finished difference Result 826 states and 1016 transitions. [2024-11-08 16:57:11,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:57:11,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 129 [2024-11-08 16:57:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:11,055 INFO L225 Difference]: With dead ends: 826 [2024-11-08 16:57:11,056 INFO L226 Difference]: Without dead ends: 422 [2024-11-08 16:57:11,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:57:11,058 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 388 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:11,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 554 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-08 16:57:11,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-08 16:57:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 396. [2024-11-08 16:57:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 325 states have (on average 1.1692307692307693) internal successors, (380), 327 states have internal predecessors, (380), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 16:57:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 480 transitions. [2024-11-08 16:57:11,222 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 480 transitions. Word has length 129 [2024-11-08 16:57:11,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:11,222 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 480 transitions. [2024-11-08 16:57:11,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.7142857142857144) internal successors, (52), 16 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 16:57:11,223 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 480 transitions. [2024-11-08 16:57:11,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:57:11,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:11,224 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:11,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:57:11,224 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:11,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:11,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1529541703, now seen corresponding path program 1 times [2024-11-08 16:57:11,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:11,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795018974] [2024-11-08 16:57:11,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:11,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:57:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:57:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:57:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:57:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:57:17,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:57:17,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:57:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:57:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:57:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:57:17,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:57:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:57:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:57:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:57:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:57:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:57:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:17,346 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:57:17,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:17,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795018974] [2024-11-08 16:57:17,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795018974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:17,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:17,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 16:57:17,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007319136] [2024-11-08 16:57:17,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:17,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:57:17,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:17,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:57:17,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:57:17,348 INFO L87 Difference]: Start difference. First operand 396 states and 480 transitions. Second operand has 15 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 15 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:57:24,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:24,346 INFO L93 Difference]: Finished difference Result 793 states and 969 transitions. [2024-11-08 16:57:24,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:57:24,347 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 15 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 6 states have call successors, (16) Word has length 129 [2024-11-08 16:57:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:24,350 INFO L225 Difference]: With dead ends: 793 [2024-11-08 16:57:24,350 INFO L226 Difference]: Without dead ends: 483 [2024-11-08 16:57:24,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:57:24,352 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 340 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:24,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 501 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 16:57:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-08 16:57:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 422. [2024-11-08 16:57:24,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 351 states have (on average 1.168091168091168) internal successors, (410), 353 states have internal predecessors, (410), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 16:57:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 510 transitions. [2024-11-08 16:57:24,554 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 510 transitions. Word has length 129 [2024-11-08 16:57:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:24,554 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 510 transitions. [2024-11-08 16:57:24,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 15 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:57:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 510 transitions. [2024-11-08 16:57:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:57:24,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:24,556 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:24,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:57:24,557 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:24,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:24,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1378077278, now seen corresponding path program 1 times [2024-11-08 16:57:24,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:24,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638326172] [2024-11-08 16:57:24,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:24,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:57:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:57:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:57:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:57:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:57:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:57:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:57:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:57:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:57:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:57:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:57:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:57:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:57:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:57:33,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:57:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:57:33,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:57:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:33,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638326172] [2024-11-08 16:57:33,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638326172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:33,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:33,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-08 16:57:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453697978] [2024-11-08 16:57:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:33,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 16:57:33,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:33,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 16:57:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:57:33,158 INFO L87 Difference]: Start difference. First operand 422 states and 510 transitions. Second operand has 22 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:57:48,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:48,645 INFO L93 Difference]: Finished difference Result 828 states and 1007 transitions. [2024-11-08 16:57:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 16:57:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:57:48,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:48,648 INFO L225 Difference]: With dead ends: 828 [2024-11-08 16:57:48,648 INFO L226 Difference]: Without dead ends: 492 [2024-11-08 16:57:48,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=179, Invalid=1381, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 16:57:48,650 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 221 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 1624 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:48,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 873 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1624 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-08 16:57:48,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2024-11-08 16:57:48,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 461. [2024-11-08 16:57:48,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 390 states have (on average 1.1666666666666667) internal successors, (455), 392 states have internal predecessors, (455), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 48 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-08 16:57:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 555 transitions. [2024-11-08 16:57:48,802 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 555 transitions. Word has length 129 [2024-11-08 16:57:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:48,803 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 555 transitions. [2024-11-08 16:57:48,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.6) internal successors, (52), 22 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:57:48,803 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 555 transitions. [2024-11-08 16:57:48,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:57:48,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:48,805 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:48,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:57:48,805 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:48,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1771104288, now seen corresponding path program 1 times [2024-11-08 16:57:48,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:48,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883066938] [2024-11-08 16:57:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:57:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:57:50,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:57:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:57:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:57:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:57:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:57:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:57:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:57:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:57:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:57:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:57:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:57:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:57:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:57:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:50,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:57:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:57:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:51,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883066938] [2024-11-08 16:57:51,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883066938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:51,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:51,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:57:51,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129154728] [2024-11-08 16:57:51,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:51,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:57:51,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:51,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:57:51,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:57:51,004 INFO L87 Difference]: Start difference. First operand 461 states and 555 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:57:56,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:56,493 INFO L93 Difference]: Finished difference Result 915 states and 1112 transitions. [2024-11-08 16:57:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:57:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-08 16:57:56,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:56,498 INFO L225 Difference]: With dead ends: 915 [2024-11-08 16:57:56,498 INFO L226 Difference]: Without dead ends: 540 [2024-11-08 16:57:56,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-08 16:57:56,503 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 324 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:56,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 432 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 16:57:56,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-08 16:57:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2024-11-08 16:57:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 450 states have (on average 1.16) internal successors, (522), 453 states have internal predecessors, (522), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:57:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 646 transitions. [2024-11-08 16:57:56,676 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 646 transitions. Word has length 129 [2024-11-08 16:57:56,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:56,676 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 646 transitions. [2024-11-08 16:57:56,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:57:56,677 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 646 transitions. [2024-11-08 16:57:56,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:57:56,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:56,678 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:56,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:57:56,678 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:56,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:56,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1512090784, now seen corresponding path program 1 times [2024-11-08 16:57:56,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:56,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644747186] [2024-11-08 16:57:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:56,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:57:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:57:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:57:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:57:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:57:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:57:57,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:57:57,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:57:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:57:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:57:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:57:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:57:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:57:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:57:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:57:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:57:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:57:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:57:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:57:57,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:57:57,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644747186] [2024-11-08 16:57:57,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644747186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:57:57,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:57:57,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:57:57,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235627391] [2024-11-08 16:57:57,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:57:57,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:57:57,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:57:57,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:57:57,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:57:57,515 INFO L87 Difference]: Start difference. First operand 537 states and 646 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:57:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:57:59,742 INFO L93 Difference]: Finished difference Result 961 states and 1164 transitions. [2024-11-08 16:57:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:57:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-08 16:57:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:57:59,745 INFO L225 Difference]: With dead ends: 961 [2024-11-08 16:57:59,745 INFO L226 Difference]: Without dead ends: 510 [2024-11-08 16:57:59,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:57:59,747 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 104 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:57:59,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 273 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:57:59,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-08 16:57:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-08 16:57:59,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 423 states have (on average 1.1583924349881796) internal successors, (490), 426 states have internal predecessors, (490), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:57:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 614 transitions. [2024-11-08 16:57:59,946 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 614 transitions. Word has length 129 [2024-11-08 16:57:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:57:59,947 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 614 transitions. [2024-11-08 16:57:59,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:57:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 614 transitions. [2024-11-08 16:57:59,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:57:59,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:57:59,949 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:57:59,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:57:59,949 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:57:59,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:57:59,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2136542030, now seen corresponding path program 1 times [2024-11-08 16:57:59,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:57:59,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682443691] [2024-11-08 16:57:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:57:59,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:00,791 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:00,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:00,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682443691] [2024-11-08 16:58:00,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682443691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:00,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:00,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:58:00,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276051379] [2024-11-08 16:58:00,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:00,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:58:00,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:00,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:58:00,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:58:00,795 INFO L87 Difference]: Start difference. First operand 510 states and 614 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:58:02,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:02,993 INFO L93 Difference]: Finished difference Result 934 states and 1131 transitions. [2024-11-08 16:58:02,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:58:02,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 129 [2024-11-08 16:58:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:02,997 INFO L225 Difference]: With dead ends: 934 [2024-11-08 16:58:02,997 INFO L226 Difference]: Without dead ends: 510 [2024-11-08 16:58:02,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:58:02,999 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 102 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:02,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 273 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 16:58:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-08 16:58:03,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2024-11-08 16:58:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 423 states have (on average 1.1560283687943262) internal successors, (489), 426 states have internal predecessors, (489), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 613 transitions. [2024-11-08 16:58:03,177 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 613 transitions. Word has length 129 [2024-11-08 16:58:03,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:03,177 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 613 transitions. [2024-11-08 16:58:03,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 7 states have internal predecessors, (52), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-08 16:58:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 613 transitions. [2024-11-08 16:58:03,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:03,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:03,179 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:03,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:58:03,180 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:03,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash -2024411760, now seen corresponding path program 1 times [2024-11-08 16:58:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105030168] [2024-11-08 16:58:03,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:10,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:10,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:10,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:10,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105030168] [2024-11-08 16:58:10,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105030168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:10,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:10,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-08 16:58:10,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680823136] [2024-11-08 16:58:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:10,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 16:58:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:10,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 16:58:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:58:10,302 INFO L87 Difference]: Start difference. First operand 510 states and 613 transitions. Second operand has 21 states, 19 states have (on average 2.736842105263158) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:58:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:25,852 INFO L93 Difference]: Finished difference Result 1084 states and 1319 transitions. [2024-11-08 16:58:25,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 16:58:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 2.736842105263158) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:58:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:25,854 INFO L225 Difference]: With dead ends: 1084 [2024-11-08 16:58:25,855 INFO L226 Difference]: Without dead ends: 660 [2024-11-08 16:58:25,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=171, Invalid=1235, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 16:58:25,857 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 158 mSDsluCounter, 961 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:25,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1052 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-08 16:58:25,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-08 16:58:26,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 565. [2024-11-08 16:58:26,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 478 states have (on average 1.1673640167364017) internal successors, (558), 481 states have internal predecessors, (558), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 682 transitions. [2024-11-08 16:58:26,058 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 682 transitions. Word has length 129 [2024-11-08 16:58:26,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:26,058 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 682 transitions. [2024-11-08 16:58:26,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 2.736842105263158) internal successors, (52), 21 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:58:26,059 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 682 transitions. [2024-11-08 16:58:26,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:26,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:26,060 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:26,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:58:26,062 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:26,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:26,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1877528526, now seen corresponding path program 1 times [2024-11-08 16:58:26,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:26,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336019152] [2024-11-08 16:58:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:26,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:26,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:26,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:26,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:26,537 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:26,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:26,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336019152] [2024-11-08 16:58:26,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336019152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:26,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:26,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:58:26,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424403891] [2024-11-08 16:58:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:26,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:58:26,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:58:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:58:26,540 INFO L87 Difference]: Start difference. First operand 565 states and 682 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:58:27,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:27,686 INFO L93 Difference]: Finished difference Result 1044 states and 1266 transitions. [2024-11-08 16:58:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:58:27,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-08 16:58:27,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:27,690 INFO L225 Difference]: With dead ends: 1044 [2024-11-08 16:58:27,690 INFO L226 Difference]: Without dead ends: 565 [2024-11-08 16:58:27,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:58:27,692 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 30 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:27,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 377 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:58:27,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-08 16:58:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2024-11-08 16:58:27,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 476 states have (on average 1.1554621848739495) internal successors, (550), 479 states have internal predecessors, (550), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 674 transitions. [2024-11-08 16:58:27,895 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 674 transitions. Word has length 129 [2024-11-08 16:58:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:27,896 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 674 transitions. [2024-11-08 16:58:27,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:58:27,896 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 674 transitions. [2024-11-08 16:58:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:27,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:27,897 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:27,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:58:27,898 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:27,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:27,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1872947335, now seen corresponding path program 1 times [2024-11-08 16:58:27,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:27,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387636523] [2024-11-08 16:58:27,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:27,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:33,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:33,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:33,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387636523] [2024-11-08 16:58:33,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387636523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:33,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:33,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:58:33,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470699273] [2024-11-08 16:58:33,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:33,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:58:33,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:58:33,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:58:33,708 INFO L87 Difference]: Start difference. First operand 563 states and 674 transitions. Second operand has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:58:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:42,493 INFO L93 Difference]: Finished difference Result 1085 states and 1303 transitions. [2024-11-08 16:58:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:58:42,494 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) Word has length 129 [2024-11-08 16:58:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:42,497 INFO L225 Difference]: With dead ends: 1085 [2024-11-08 16:58:42,497 INFO L226 Difference]: Without dead ends: 608 [2024-11-08 16:58:42,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:58:42,499 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 220 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:42,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 595 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-08 16:58:42,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-08 16:58:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 551. [2024-11-08 16:58:42,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 464 states have (on average 1.1508620689655173) internal successors, (534), 467 states have internal predecessors, (534), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 658 transitions. [2024-11-08 16:58:42,728 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 658 transitions. Word has length 129 [2024-11-08 16:58:42,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:42,729 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 658 transitions. [2024-11-08 16:58:42,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:58:42,730 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 658 transitions. [2024-11-08 16:58:42,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:42,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:42,731 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:42,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:58:42,732 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:42,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1209336651, now seen corresponding path program 1 times [2024-11-08 16:58:42,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:42,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258771683] [2024-11-08 16:58:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:42,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:43,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:43,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258771683] [2024-11-08 16:58:43,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258771683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:43,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:43,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:58:43,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934125014] [2024-11-08 16:58:43,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:43,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:58:43,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:58:43,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:58:43,240 INFO L87 Difference]: Start difference. First operand 551 states and 658 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:58:44,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:44,234 INFO L93 Difference]: Finished difference Result 1016 states and 1219 transitions. [2024-11-08 16:58:44,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:58:44,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-08 16:58:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:44,237 INFO L225 Difference]: With dead ends: 1016 [2024-11-08 16:58:44,237 INFO L226 Difference]: Without dead ends: 551 [2024-11-08 16:58:44,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:58:44,238 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 10 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:44,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 367 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:58:44,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-08 16:58:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2024-11-08 16:58:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 464 states have (on average 1.1487068965517242) internal successors, (533), 467 states have internal predecessors, (533), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 657 transitions. [2024-11-08 16:58:44,438 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 657 transitions. Word has length 129 [2024-11-08 16:58:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:44,439 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 657 transitions. [2024-11-08 16:58:44,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:58:44,439 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 657 transitions. [2024-11-08 16:58:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:44,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:44,441 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:44,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 16:58:44,441 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:44,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:44,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1343350157, now seen corresponding path program 1 times [2024-11-08 16:58:44,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:44,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540760957] [2024-11-08 16:58:44,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:44,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:47,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:47,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:47,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:47,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:47,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:47,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:47,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540760957] [2024-11-08 16:58:47,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540760957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:47,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:58:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462969145] [2024-11-08 16:58:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:47,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:58:47,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:58:47,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:58:47,591 INFO L87 Difference]: Start difference. First operand 551 states and 657 transitions. Second operand has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:58:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:58:50,891 INFO L93 Difference]: Finished difference Result 1006 states and 1207 transitions. [2024-11-08 16:58:50,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:58:50,892 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:58:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:58:50,894 INFO L225 Difference]: With dead ends: 1006 [2024-11-08 16:58:50,894 INFO L226 Difference]: Without dead ends: 541 [2024-11-08 16:58:50,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:58:50,895 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 151 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:58:50,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 290 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 16:58:50,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-08 16:58:51,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 537. [2024-11-08 16:58:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 450 states have (on average 1.14) internal successors, (513), 453 states have internal predecessors, (513), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:58:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 637 transitions. [2024-11-08 16:58:51,091 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 637 transitions. Word has length 129 [2024-11-08 16:58:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:58:51,091 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 637 transitions. [2024-11-08 16:58:51,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.5) internal successors, (52), 10 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:58:51,092 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 637 transitions. [2024-11-08 16:58:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:58:51,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:58:51,093 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:58:51,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 16:58:51,093 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:58:51,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:58:51,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1736377167, now seen corresponding path program 1 times [2024-11-08 16:58:51,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:58:51,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500351137] [2024-11-08 16:58:51,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:58:51,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:58:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:58:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:58:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:58:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:58:55,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:58:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:58:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:58:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:58:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:58:55,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:58:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:58:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:58:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:58:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:58:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:58:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:58:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:58:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:58:55,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:58:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500351137] [2024-11-08 16:58:55,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500351137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:58:55,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:58:55,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:58:55,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91455987] [2024-11-08 16:58:55,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:58:55,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:58:55,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:58:55,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:58:55,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:58:55,782 INFO L87 Difference]: Start difference. First operand 537 states and 637 transitions. Second operand has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 16:59:02,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:02,675 INFO L93 Difference]: Finished difference Result 1140 states and 1364 transitions. [2024-11-08 16:59:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:59:02,676 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) Word has length 129 [2024-11-08 16:59:02,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:02,680 INFO L225 Difference]: With dead ends: 1140 [2024-11-08 16:59:02,680 INFO L226 Difference]: Without dead ends: 689 [2024-11-08 16:59:02,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:59:02,682 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 277 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:02,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 564 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 16:59:02,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2024-11-08 16:59:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 563. [2024-11-08 16:59:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 476 states have (on average 1.1449579831932772) internal successors, (545), 479 states have internal predecessors, (545), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:59:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 669 transitions. [2024-11-08 16:59:02,912 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 669 transitions. Word has length 129 [2024-11-08 16:59:02,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:02,913 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 669 transitions. [2024-11-08 16:59:02,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 16:59:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 669 transitions. [2024-11-08 16:59:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:59:02,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:02,915 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:02,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 16:59:02,915 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:02,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1191885732, now seen corresponding path program 1 times [2024-11-08 16:59:02,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:02,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933145618] [2024-11-08 16:59:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:59:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:59:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:59:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:59:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:59:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:59:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:59:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:59:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:59:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:59:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:59:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:59:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:59:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:59:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:59:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:59:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:03,405 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:59:03,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:03,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933145618] [2024-11-08 16:59:03,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933145618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:03,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:03,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:59:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648359659] [2024-11-08 16:59:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:03,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:59:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:03,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:59:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:59:03,408 INFO L87 Difference]: Start difference. First operand 563 states and 669 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:59:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:04,481 INFO L93 Difference]: Finished difference Result 1042 states and 1242 transitions. [2024-11-08 16:59:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:59:04,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 129 [2024-11-08 16:59:04,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:04,484 INFO L225 Difference]: With dead ends: 1042 [2024-11-08 16:59:04,484 INFO L226 Difference]: Without dead ends: 565 [2024-11-08 16:59:04,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:59:04,485 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 32 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:04,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 400 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:59:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-11-08 16:59:04,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2024-11-08 16:59:04,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 476 states have (on average 1.1407563025210083) internal successors, (543), 479 states have internal predecessors, (543), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:59:04,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 667 transitions. [2024-11-08 16:59:04,692 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 667 transitions. Word has length 129 [2024-11-08 16:59:04,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:04,692 INFO L471 AbstractCegarLoop]: Abstraction has 563 states and 667 transitions. [2024-11-08 16:59:04,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-08 16:59:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 667 transitions. [2024-11-08 16:59:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:59:04,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:04,694 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:04,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 16:59:04,695 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:04,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1584912742, now seen corresponding path program 1 times [2024-11-08 16:59:04,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:04,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659707130] [2024-11-08 16:59:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:04,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:59:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:59:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:59:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:59:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:59:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:59:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:59:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:59:12,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:59:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:59:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:59:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:59:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:59:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:59:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:59:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:59:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:59:12,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:12,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659707130] [2024-11-08 16:59:12,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659707130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:12,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:12,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-08 16:59:12,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938930730] [2024-11-08 16:59:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:12,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-08 16:59:12,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-08 16:59:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2024-11-08 16:59:12,793 INFO L87 Difference]: Start difference. First operand 563 states and 667 transitions. Second operand has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 24 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:59:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:28,539 INFO L93 Difference]: Finished difference Result 1110 states and 1322 transitions. [2024-11-08 16:59:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 16:59:28,540 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 24 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) Word has length 129 [2024-11-08 16:59:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:28,543 INFO L225 Difference]: With dead ends: 1110 [2024-11-08 16:59:28,543 INFO L226 Difference]: Without dead ends: 633 [2024-11-08 16:59:28,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=214, Invalid=1508, Unknown=0, NotChecked=0, Total=1722 [2024-11-08 16:59:28,545 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 232 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 1938 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 1079 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:28,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 1079 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1938 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-08 16:59:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-08 16:59:28,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 575. [2024-11-08 16:59:28,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 488 states have (on average 1.1372950819672132) internal successors, (555), 491 states have internal predecessors, (555), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:59:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 679 transitions. [2024-11-08 16:59:28,706 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 679 transitions. Word has length 129 [2024-11-08 16:59:28,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:28,707 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 679 transitions. [2024-11-08 16:59:28,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.4761904761904763) internal successors, (52), 24 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:59:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 679 transitions. [2024-11-08 16:59:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:59:28,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:28,709 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:28,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 16:59:28,709 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:28,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:28,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1601515595, now seen corresponding path program 1 times [2024-11-08 16:59:28,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:28,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550685454] [2024-11-08 16:59:28,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:28,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:59:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:59:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:59:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:59:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:59:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:59:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:59:33,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:59:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:59:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:59:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:59:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:59:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:59:33,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:59:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:59:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:59:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:59:33,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:33,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550685454] [2024-11-08 16:59:33,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550685454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:33,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:33,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-08 16:59:33,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708771654] [2024-11-08 16:59:33,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:33,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 16:59:33,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:33,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 16:59:33,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:59:33,869 INFO L87 Difference]: Start difference. First operand 575 states and 679 transitions. Second operand has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:59:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:39,900 INFO L93 Difference]: Finished difference Result 1229 states and 1459 transitions. [2024-11-08 16:59:39,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:59:39,901 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) Word has length 129 [2024-11-08 16:59:39,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:39,905 INFO L225 Difference]: With dead ends: 1229 [2024-11-08 16:59:39,905 INFO L226 Difference]: Without dead ends: 740 [2024-11-08 16:59:39,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:59:39,907 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 322 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:39,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 462 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-08 16:59:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2024-11-08 16:59:40,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 577. [2024-11-08 16:59:40,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 490 states have (on average 1.136734693877551) internal successors, (557), 493 states have internal predecessors, (557), 62 states have call successors, (62), 24 states have call predecessors, (62), 24 states have return successors, (62), 59 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-08 16:59:40,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 681 transitions. [2024-11-08 16:59:40,139 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 681 transitions. Word has length 129 [2024-11-08 16:59:40,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:40,139 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 681 transitions. [2024-11-08 16:59:40,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 14 states have internal predecessors, (52), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 6 states have call successors, (16) [2024-11-08 16:59:40,140 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 681 transitions. [2024-11-08 16:59:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:59:40,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:40,141 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:40,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 16:59:40,142 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:40,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:40,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1450051170, now seen corresponding path program 1 times [2024-11-08 16:59:40,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:40,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252788849] [2024-11-08 16:59:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:40,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 16:59:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:59:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 16:59:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:59:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:59:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:59:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 16:59:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 16:59:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:59:43,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:59:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 16:59:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:59:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 16:59:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 16:59:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 16:59:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 16:59:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:59:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 16:59:43,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:59:43,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252788849] [2024-11-08 16:59:43,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252788849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:59:43,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:59:43,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 16:59:43,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088445829] [2024-11-08 16:59:43,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:59:43,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:59:43,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:59:43,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:59:43,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:59:43,962 INFO L87 Difference]: Start difference. First operand 577 states and 681 transitions. Second operand has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:59:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:59:48,668 INFO L93 Difference]: Finished difference Result 999 states and 1177 transitions. [2024-11-08 16:59:48,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:59:48,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 16:59:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:59:48,671 INFO L225 Difference]: With dead ends: 999 [2024-11-08 16:59:48,672 INFO L226 Difference]: Without dead ends: 508 [2024-11-08 16:59:48,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:59:48,673 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 282 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:59:48,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 426 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 642 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 16:59:48,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-08 16:59:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 480. [2024-11-08 16:59:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 402 states have (on average 1.1144278606965174) internal successors, (448), 404 states have internal predecessors, (448), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 16:59:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 556 transitions. [2024-11-08 16:59:48,886 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 556 transitions. Word has length 129 [2024-11-08 16:59:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:59:48,887 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 556 transitions. [2024-11-08 16:59:48,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 16:59:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 556 transitions. [2024-11-08 16:59:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 16:59:48,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:59:48,888 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:59:48,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 16:59:48,889 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:59:48,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:59:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash 2063720072, now seen corresponding path program 1 times [2024-11-08 16:59:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:59:48,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607176167] [2024-11-08 16:59:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:59:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:59:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:00:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:00:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:00:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:00:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:00:00,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:00:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:00:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:00:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:00:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:00:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:00:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:00:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:00:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:00:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:00:00,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:00,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607176167] [2024-11-08 17:00:00,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607176167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:00,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:00,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-08 17:00:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228382589] [2024-11-08 17:00:00,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:00,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:00:00,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:00,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:00:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=448, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:00:00,398 INFO L87 Difference]: Start difference. First operand 480 states and 556 transitions. Second operand has 23 states, 20 states have (on average 2.6) internal successors, (52), 23 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 17:00:18,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:18,756 INFO L93 Difference]: Finished difference Result 946 states and 1101 transitions. [2024-11-08 17:00:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-08 17:00:18,757 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 2.6) internal successors, (52), 23 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) Word has length 129 [2024-11-08 17:00:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:18,760 INFO L225 Difference]: With dead ends: 946 [2024-11-08 17:00:18,760 INFO L226 Difference]: Without dead ends: 552 [2024-11-08 17:00:18,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=183, Invalid=1457, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 17:00:18,762 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 187 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:18,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 1089 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2024-11-08 17:00:18,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-08 17:00:18,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 511. [2024-11-08 17:00:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 433 states have (on average 1.120092378752887) internal successors, (485), 435 states have internal predecessors, (485), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:00:18,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 593 transitions. [2024-11-08 17:00:18,918 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 593 transitions. Word has length 129 [2024-11-08 17:00:18,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:18,919 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 593 transitions. [2024-11-08 17:00:18,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 2.6) internal successors, (52), 23 states have internal predecessors, (52), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 17:00:18,919 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 593 transitions. [2024-11-08 17:00:18,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 17:00:18,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:18,921 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:18,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 17:00:18,921 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:18,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:18,921 INFO L85 PathProgramCache]: Analyzing trace with hash -2079782799, now seen corresponding path program 1 times [2024-11-08 17:00:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372417817] [2024-11-08 17:00:18,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:00:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:00:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:00:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:00:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:00:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:00:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:00:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:00:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:00:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:00:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:00:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:00:22,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:00:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:00:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:00:22,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:22,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372417817] [2024-11-08 17:00:22,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372417817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:22,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:22,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 17:00:22,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709165626] [2024-11-08 17:00:22,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:22,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 17:00:22,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:22,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 17:00:22,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:00:22,914 INFO L87 Difference]: Start difference. First operand 511 states and 593 transitions. Second operand has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:00:30,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:30,009 INFO L93 Difference]: Finished difference Result 989 states and 1151 transitions. [2024-11-08 17:00:30,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:00:30,010 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 17:00:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:30,013 INFO L225 Difference]: With dead ends: 989 [2024-11-08 17:00:30,013 INFO L226 Difference]: Without dead ends: 564 [2024-11-08 17:00:30,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:00:30,015 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 254 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:30,015 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 597 Invalid, 1080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 17:00:30,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2024-11-08 17:00:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 507. [2024-11-08 17:00:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 429 states have (on average 1.1118881118881119) internal successors, (477), 431 states have internal predecessors, (477), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:00:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 585 transitions. [2024-11-08 17:00:30,225 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 585 transitions. Word has length 129 [2024-11-08 17:00:30,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:30,225 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 585 transitions. [2024-11-08 17:00:30,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 13 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:00:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 585 transitions. [2024-11-08 17:00:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 17:00:30,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:30,227 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:30,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 17:00:30,228 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:30,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash -2097233718, now seen corresponding path program 1 times [2024-11-08 17:00:30,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:30,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277490775] [2024-11-08 17:00:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:00:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:00:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:00:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:00:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:00:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:00:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:00:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:00:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:00:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:00:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:00:31,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:00:31,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:00:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:00:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:00:31,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:31,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277490775] [2024-11-08 17:00:31,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277490775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:00:31,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:00:31,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:00:31,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733622722] [2024-11-08 17:00:31,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:00:31,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:00:31,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:00:31,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:00:31,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:00:31,677 INFO L87 Difference]: Start difference. First operand 507 states and 585 transitions. Second operand has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:00:34,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:00:34,851 INFO L93 Difference]: Finished difference Result 889 states and 1028 transitions. [2024-11-08 17:00:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:00:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) Word has length 129 [2024-11-08 17:00:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:00:34,854 INFO L225 Difference]: With dead ends: 889 [2024-11-08 17:00:34,854 INFO L226 Difference]: Without dead ends: 468 [2024-11-08 17:00:34,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:00:34,855 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 97 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:00:34,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 278 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 17:00:34,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-11-08 17:00:34,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2024-11-08 17:00:34,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 390 states have (on average 1.1051282051282052) internal successors, (431), 392 states have internal predecessors, (431), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:00:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 539 transitions. [2024-11-08 17:00:34,986 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 539 transitions. Word has length 129 [2024-11-08 17:00:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:00:34,986 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 539 transitions. [2024-11-08 17:00:34,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.666666666666666) internal successors, (52), 8 states have internal predecessors, (52), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 2 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:00:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 539 transitions. [2024-11-08 17:00:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 17:00:34,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:00:34,987 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:00:34,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-08 17:00:34,988 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:00:34,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:00:34,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1268243004, now seen corresponding path program 1 times [2024-11-08 17:00:34,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:00:34,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465594535] [2024-11-08 17:00:34,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:34,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:00:35,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:00:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:00:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:00:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:00:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:00:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:00:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:40,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:00:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:00:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:00:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:00:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:00:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:00:41,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:00:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:00:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:00:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:00:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,322 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 108 proven. 36 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-08 17:00:41,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:00:41,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465594535] [2024-11-08 17:00:41,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465594535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:00:41,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704769767] [2024-11-08 17:00:41,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:00:41,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:00:41,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:00:41,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:00:41,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 17:00:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:00:41,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-08 17:00:41,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:00:46,704 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 [2024-11-08 17:00:50,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:00:52,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:00:54,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:00:56,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:02,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2024-11-08 17:01:03,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:03,087 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-08 17:01:03,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2024-11-08 17:01:05,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:05,723 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-08 17:01:05,723 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 34 [2024-11-08 17:01:06,657 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 252 proven. 96 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-08 17:01:06,657 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:01:09,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [704769767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:09,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:01:09,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 27] total 44 [2024-11-08 17:01:09,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929890106] [2024-11-08 17:01:09,853 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:01:09,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-08 17:01:09,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-08 17:01:09,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=216, Invalid=2234, Unknown=0, NotChecked=0, Total=2450 [2024-11-08 17:01:09,855 INFO L87 Difference]: Start difference. First operand 468 states and 539 transitions. Second operand has 44 states, 36 states have (on average 3.5277777777777777) internal successors, (127), 39 states have internal predecessors, (127), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 17:01:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:33,925 INFO L93 Difference]: Finished difference Result 663 states and 759 transitions. [2024-11-08 17:01:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-08 17:01:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 36 states have (on average 3.5277777777777777) internal successors, (127), 39 states have internal predecessors, (127), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) Word has length 132 [2024-11-08 17:01:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:33,928 INFO L225 Difference]: With dead ends: 663 [2024-11-08 17:01:33,928 INFO L226 Difference]: Without dead ends: 661 [2024-11-08 17:01:33,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=763, Invalid=4787, Unknown=0, NotChecked=0, Total=5550 [2024-11-08 17:01:33,930 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 413 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 3116 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1292 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:33,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1292 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3116 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2024-11-08 17:01:33,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-08 17:01:34,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 522. [2024-11-08 17:01:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 444 states have (on average 1.0968468468468469) internal successors, (487), 446 states have internal predecessors, (487), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:01:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 595 transitions. [2024-11-08 17:01:34,085 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 595 transitions. Word has length 132 [2024-11-08 17:01:34,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:34,086 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 595 transitions. [2024-11-08 17:01:34,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 36 states have (on average 3.5277777777777777) internal successors, (127), 39 states have internal predecessors, (127), 12 states have call successors, (32), 5 states have call predecessors, (32), 8 states have return successors, (32), 10 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-08 17:01:34,086 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 595 transitions. [2024-11-08 17:01:34,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:01:34,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:34,088 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:34,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 17:01:34,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:34,289 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:34,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:34,289 INFO L85 PathProgramCache]: Analyzing trace with hash 661391689, now seen corresponding path program 1 times [2024-11-08 17:01:34,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:34,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324138849] [2024-11-08 17:01:34,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:34,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:01:36,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:01:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:01:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:01:36,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:01:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:01:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:01:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:01:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:01:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:01:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:01:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:01:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:01:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:01:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:01:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 17:01:36,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324138849] [2024-11-08 17:01:36,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324138849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244484058] [2024-11-08 17:01:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:36,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:36,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:36,347 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:36,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 17:01:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:36,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-08 17:01:36,649 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:01:38,653 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 [2024-11-08 17:01:40,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:41,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:42,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:43,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:44,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:45,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:01:45,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:01:46,175 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 35 treesize of output 23 [2024-11-08 17:01:46,187 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 136 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-08 17:01:46,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:01:46,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244484058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:01:46,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:01:46,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2024-11-08 17:01:46,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35556375] [2024-11-08 17:01:46,985 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:01:46,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:01:46,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:46,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:01:46,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:01:46,987 INFO L87 Difference]: Start difference. First operand 522 states and 595 transitions. Second operand has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 17:01:50,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:50,676 INFO L93 Difference]: Finished difference Result 974 states and 1109 transitions. [2024-11-08 17:01:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:01:50,676 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) Word has length 134 [2024-11-08 17:01:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:50,678 INFO L225 Difference]: With dead ends: 974 [2024-11-08 17:01:50,679 INFO L226 Difference]: Without dead ends: 538 [2024-11-08 17:01:50,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:01:50,680 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 254 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:50,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 311 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 17:01:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-08 17:01:50,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 522. [2024-11-08 17:01:50,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 444 states have (on average 1.087837837837838) internal successors, (483), 446 states have internal predecessors, (483), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:01:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 591 transitions. [2024-11-08 17:01:50,897 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 591 transitions. Word has length 134 [2024-11-08 17:01:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:50,898 INFO L471 AbstractCegarLoop]: Abstraction has 522 states and 591 transitions. [2024-11-08 17:01:50,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 6.4375) internal successors, (103), 18 states have internal predecessors, (103), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 17:01:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 591 transitions. [2024-11-08 17:01:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-08 17:01:50,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:50,900 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:50,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 17:01:51,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-08 17:01:51,101 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:51,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:51,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1705522343, now seen corresponding path program 1 times [2024-11-08 17:01:51,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:51,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953676270] [2024-11-08 17:01:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:51,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:01:53,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:01:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:01:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:01:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:01:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:01:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:01:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:01:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:01:53,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:01:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:01:53,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:01:53,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:01:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:01:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:01:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:01:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-08 17:01:53,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:53,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953676270] [2024-11-08 17:01:53,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953676270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:53,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:53,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 17:01:53,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964721448] [2024-11-08 17:01:53,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:53,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 17:01:53,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:53,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 17:01:53,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:01:53,730 INFO L87 Difference]: Start difference. First operand 522 states and 591 transitions. Second operand has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:01:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:01:58,006 INFO L93 Difference]: Finished difference Result 590 states and 668 transitions. [2024-11-08 17:01:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:01:58,006 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 134 [2024-11-08 17:01:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:01:58,009 INFO L225 Difference]: With dead ends: 590 [2024-11-08 17:01:58,009 INFO L226 Difference]: Without dead ends: 588 [2024-11-08 17:01:58,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-08 17:01:58,010 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 273 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:01:58,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 669 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 17:01:58,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-11-08 17:01:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 526. [2024-11-08 17:01:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 448 states have (on average 1.0915178571428572) internal successors, (489), 450 states have internal predecessors, (489), 54 states have call successors, (54), 23 states have call predecessors, (54), 23 states have return successors, (54), 52 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-08 17:01:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 597 transitions. [2024-11-08 17:01:58,144 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 597 transitions. Word has length 134 [2024-11-08 17:01:58,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:01:58,145 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 597 transitions. [2024-11-08 17:01:58,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.75) internal successors, (57), 13 states have internal predecessors, (57), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:01:58,145 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 597 transitions. [2024-11-08 17:01:58,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:01:58,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:01:58,146 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:01:58,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-08 17:01:58,147 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:01:58,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:58,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1697886607, now seen corresponding path program 1 times [2024-11-08 17:01:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:58,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055436638] [2024-11-08 17:01:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:58,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 17:01:58,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1545739221] [2024-11-08 17:01:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:58,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:01:58,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:58,278 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:01:58,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 17:01:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:58,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 102 conjuncts are in the unsatisfiable core [2024-11-08 17:01:58,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:02:06,264 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 [2024-11-08 17:02:09,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2024-11-08 17:02:13,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-08 17:02:15,947 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 30 [2024-11-08 17:02:20,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:20,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2024-11-08 17:02:23,647 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 106 treesize of output 76 [2024-11-08 17:02:23,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 110 [2024-11-08 17:02:23,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:23,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 86 [2024-11-08 17:02:30,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:30,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:30,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:02:31,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:02:31,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 234 treesize of output 194 [2024-11-08 17:02:33,370 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 215 proven. 136 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-08 17:02:33,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:03:31,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:31,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055436638] [2024-11-08 17:03:31,843 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 17:03:31,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545739221] [2024-11-08 17:03:31,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545739221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:31,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:03:31,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-11-08 17:03:31,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801525642] [2024-11-08 17:03:31,843 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 17:03:31,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-08 17:03:31,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:03:31,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-08 17:03:31,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1109, Unknown=3, NotChecked=0, Total=1406 [2024-11-08 17:03:31,845 INFO L87 Difference]: Start difference. First operand 526 states and 597 transitions. Second operand has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 7 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-08 17:03:49,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:03:49,139 INFO L93 Difference]: Finished difference Result 988 states and 1111 transitions. [2024-11-08 17:03:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-08 17:03:49,141 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 7 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) Word has length 136 [2024-11-08 17:03:49,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:03:49,144 INFO L225 Difference]: With dead ends: 988 [2024-11-08 17:03:49,144 INFO L226 Difference]: Without dead ends: 548 [2024-11-08 17:03:49,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 62.5s TimeCoverageRelationStatistics Valid=630, Invalid=2447, Unknown=3, NotChecked=0, Total=3080 [2024-11-08 17:03:49,146 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 521 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1071 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:03:49,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1071 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-08 17:03:49,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-08 17:03:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 411. [2024-11-08 17:03:49,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 353 states have (on average 1.084985835694051) internal successors, (383), 354 states have internal predecessors, (383), 38 states have call successors, (38), 19 states have call predecessors, (38), 19 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-08 17:03:49,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 459 transitions. [2024-11-08 17:03:49,319 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 459 transitions. Word has length 136 [2024-11-08 17:03:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:03:49,319 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 459 transitions. [2024-11-08 17:03:49,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 3.347826086956522) internal successors, (77), 24 states have internal predecessors, (77), 7 states have call successors, (16), 5 states have call predecessors, (16), 7 states have return successors, (16), 5 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-08 17:03:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 459 transitions. [2024-11-08 17:03:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:03:49,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:03:49,320 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:03:49,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 17:03:49,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-08 17:03:49,521 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:03:49,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:03:49,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1407868948, now seen corresponding path program 1 times [2024-11-08 17:03:49,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:03:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547140093] [2024-11-08 17:03:49,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:49,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:03:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:03:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:03:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:03:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:03:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:03:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:03:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:03:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:03:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:03:52,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:03:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:03:52,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:03:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:03:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:03:52,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:03:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:03:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 30 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 17:03:52,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:03:52,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547140093] [2024-11-08 17:03:52,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547140093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:03:52,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007923967] [2024-11-08 17:03:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:03:52,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:03:52,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:03:52,836 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:03:52,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 17:03:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:03:53,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 17:03:53,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:03:55,809 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 [2024-11-08 17:03:57,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:03:58,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:00,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:01,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:03,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:04,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:04,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:05,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:05,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:04:05,986 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 35 treesize of output 23 [2024-11-08 17:04:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 183 proven. 136 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-08 17:04:05,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:04:07,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007923967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:04:07,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:04:07,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20 [2024-11-08 17:04:07,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115273017] [2024-11-08 17:04:07,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:04:07,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 17:04:07,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:04:07,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 17:04:07,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:04:07,041 INFO L87 Difference]: Start difference. First operand 411 states and 459 transitions. Second operand has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 20 states have internal predecessors, (122), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 17:04:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:04:11,729 INFO L93 Difference]: Finished difference Result 750 states and 835 transitions. [2024-11-08 17:04:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:04:11,730 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 20 states have internal predecessors, (122), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) Word has length 136 [2024-11-08 17:04:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:04:11,732 INFO L225 Difference]: With dead ends: 750 [2024-11-08 17:04:11,733 INFO L226 Difference]: Without dead ends: 429 [2024-11-08 17:04:11,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2024-11-08 17:04:11,734 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 173 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 17:04:11,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 278 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 17:04:11,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-08 17:04:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 377. [2024-11-08 17:04:11,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 326 states have (on average 1.0858895705521472) internal successors, (354), 326 states have internal predecessors, (354), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 17:04:11,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 418 transitions. [2024-11-08 17:04:11,899 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 418 transitions. Word has length 136 [2024-11-08 17:04:11,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:04:11,899 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 418 transitions. [2024-11-08 17:04:11,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 6.777777777777778) internal successors, (122), 20 states have internal predecessors, (122), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32) [2024-11-08 17:04:11,900 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 418 transitions. [2024-11-08 17:04:11,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 17:04:11,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:04:11,901 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:04:11,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 17:04:12,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-08 17:04:12,102 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:04:12,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:04:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1574148111, now seen corresponding path program 1 times [2024-11-08 17:04:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:04:12,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859481778] [2024-11-08 17:04:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:04:12,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:04:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 17:04:12,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739653125] [2024-11-08 17:04:12,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:04:12,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:04:12,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:04:12,282 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:04:12,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 17:04:12,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:04:12,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-08 17:04:12,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:04:20,203 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 [2024-11-08 17:04:21,572 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 [2024-11-08 17:04:23,043 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 [2024-11-08 17:04:24,784 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 [2024-11-08 17:04:25,967 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 60 treesize of output 42 [2024-11-08 17:04:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 78 [2024-11-08 17:04:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:26,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 45 [2024-11-08 17:04:29,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:29,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:04:29,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:04:29,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 102 treesize of output 110 [2024-11-08 17:04:30,201 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2024-11-08 17:04:30,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:05:09,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:05:09,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859481778] [2024-11-08 17:05:09,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 17:05:09,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739653125] [2024-11-08 17:05:09,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739653125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:05:09,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:05:09,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-08 17:05:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043324697] [2024-11-08 17:05:09,961 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 17:05:09,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:05:09,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:05:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:05:09,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=131, Unknown=7, NotChecked=0, Total=182 [2024-11-08 17:05:09,962 INFO L87 Difference]: Start difference. First operand 377 states and 418 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 17:05:14,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:05:14,612 INFO L93 Difference]: Finished difference Result 687 states and 760 transitions. [2024-11-08 17:05:14,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:05:14,612 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-11-08 17:05:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:05:14,614 INFO L225 Difference]: With dead ends: 687 [2024-11-08 17:05:14,614 INFO L226 Difference]: Without dead ends: 400 [2024-11-08 17:05:14,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 35.3s TimeCoverageRelationStatistics Valid=103, Invalid=232, Unknown=7, NotChecked=0, Total=342 [2024-11-08 17:05:14,615 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 135 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:05:14,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 333 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 17:05:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-08 17:05:14,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 365. [2024-11-08 17:05:14,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 314 states have (on average 1.0732484076433122) internal successors, (337), 314 states have internal predecessors, (337), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 17:05:14,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 401 transitions. [2024-11-08 17:05:14,743 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 401 transitions. Word has length 136 [2024-11-08 17:05:14,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:05:14,743 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 401 transitions. [2024-11-08 17:05:14,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 17:05:14,743 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 401 transitions. [2024-11-08 17:05:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 17:05:14,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:05:14,744 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:05:14,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 17:05:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2024-11-08 17:05:14,945 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:05:14,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:05:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1181716580, now seen corresponding path program 1 times [2024-11-08 17:05:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:05:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178118822] [2024-11-08 17:05:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:05:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 17:05:15,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2135697647] [2024-11-08 17:05:15,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:05:15,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:05:15,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:05:15,154 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:05:15,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 17:05:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:05:15,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 81 conjuncts are in the unsatisfiable core [2024-11-08 17:05:15,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:05:21,706 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 [2024-11-08 17:05:24,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:05:25,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:05:27,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:05:30,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:30,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:30,226 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2024-11-08 17:05:32,595 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 95 treesize of output 67 [2024-11-08 17:05:32,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 93 [2024-11-08 17:05:32,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:32,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 60 [2024-11-08 17:05:40,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:40,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:05:40,263 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:05:40,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 165 treesize of output 137 [2024-11-08 17:05:43,623 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 189 proven. 127 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-08 17:05:43,623 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:05:59,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:05:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178118822] [2024-11-08 17:05:59,665 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 17:05:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135697647] [2024-11-08 17:05:59,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135697647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:05:59,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:05:59,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-08 17:05:59,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377161858] [2024-11-08 17:05:59,666 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-08 17:05:59,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 17:05:59,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:05:59,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 17:05:59,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=816, Unknown=1, NotChecked=0, Total=930 [2024-11-08 17:05:59,667 INFO L87 Difference]: Start difference. First operand 365 states and 401 transitions. Second operand has 20 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:06:16,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:06:16,180 INFO L93 Difference]: Finished difference Result 705 states and 772 transitions. [2024-11-08 17:06:16,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 17:06:16,181 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 138 [2024-11-08 17:06:16,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:06:16,183 INFO L225 Difference]: With dead ends: 705 [2024-11-08 17:06:16,183 INFO L226 Difference]: Without dead ends: 430 [2024-11-08 17:06:16,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 23.2s TimeCoverageRelationStatistics Valid=308, Invalid=1761, Unknown=1, NotChecked=0, Total=2070 [2024-11-08 17:06:16,185 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 358 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:06:16,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 786 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2024-11-08 17:06:16,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-08 17:06:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 372. [2024-11-08 17:06:16,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 321 states have (on average 1.071651090342679) internal successors, (344), 321 states have internal predecessors, (344), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-08 17:06:16,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 408 transitions. [2024-11-08 17:06:16,399 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 408 transitions. Word has length 138 [2024-11-08 17:06:16,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:06:16,400 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 408 transitions. [2024-11-08 17:06:16,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 19 states have internal predecessors, (70), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-08 17:06:16,400 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 408 transitions. [2024-11-08 17:06:16,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-08 17:06:16,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:06:16,401 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:06:16,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 17:06:16,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-08 17:06:16,602 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:06:16,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:06:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1977441328, now seen corresponding path program 1 times [2024-11-08 17:06:16,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:06:16,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793867885] [2024-11-08 17:06:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:16,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:06:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 17:06:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 17:06:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 17:06:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 17:06:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 17:06:18,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 17:06:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:18,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 17:06:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 17:06:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 17:06:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 17:06:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 17:06:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:06:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 17:06:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 17:06:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 17:06:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 17:06:19,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,142 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-08 17:06:19,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:06:19,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793867885] [2024-11-08 17:06:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793867885] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633086246] [2024-11-08 17:06:19,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:06:19,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:06:19,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:06:19,144 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:06:19,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e64bbbdc-f362-46c4-91fd-280f8fb09bde/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 17:06:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:06:19,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-08 17:06:19,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:06:23,469 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 [2024-11-08 17:06:25,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:06:27,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:06:28,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:06:29,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:06:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:31,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-08 17:06:31,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 17:06:31,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2024-11-08 17:06:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 193 proven. 133 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-08 17:06:33,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:06:34,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633086246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:06:34,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:06:34,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2024-11-08 17:06:34,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9468548] [2024-11-08 17:06:34,608 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:06:34,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 17:06:34,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:06:34,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 17:06:34,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:06:34,610 INFO L87 Difference]: Start difference. First operand 372 states and 408 transitions. Second operand has 21 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 9 states have call successors, (32), 4 states have call predecessors, (32), 6 states have return successors, (32), 7 states have call predecessors, (32), 9 states have call successors, (32)