./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:34:40,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:34:40,852 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:34:40,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:34:40,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:34:40,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:34:40,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:34:40,885 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:34:40,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:34:40,889 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:34:40,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:34:40,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:34:40,890 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:34:40,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:34:40,890 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:34:40,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:34:40,890 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:34:40,891 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:34:40,891 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:34:40,891 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:34:40,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:34:40,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:34:40,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:34:40,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:34:40,895 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:34:40,895 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:34:40,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:34:40,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:34:40,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:34:40,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:34:40,896 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:34:40,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:34:40,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:34:40,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:34:40,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:34:40,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:34:40,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:34:40,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:34:40,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:34:40,899 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:34:40,899 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:34:40,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:34:40,899 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5997605399232d6623d2d70739affa04a63a65f78c1dd829a070c5dea4fb22a3 [2024-11-20 08:34:41,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:34:41,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:34:41,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:34:41,149 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:34:41,149 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:34:41,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-20 08:34:42,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:34:42,800 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:34:42,801 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-20 08:34:42,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494e31302/dc4d7fd02f474e0787f66db5021192ec/FLAG21543bc99 [2024-11-20 08:34:43,179 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/494e31302/dc4d7fd02f474e0787f66db5021192ec [2024-11-20 08:34:43,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:34:43,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:34:43,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:34:43,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:34:43,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:34:43,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526034ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43, skipping insertion in model container [2024-11-20 08:34:43,191 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:34:43,394 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-20 08:34:43,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:34:43,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:34:43,536 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-ap_file-32.i[917,930] [2024-11-20 08:34:43,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:34:43,623 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:34:43,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43 WrapperNode [2024-11-20 08:34:43,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:34:43,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:34:43,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:34:43,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:34:43,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,730 INFO L138 Inliner]: procedures = 26, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 452 [2024-11-20 08:34:43,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:34:43,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:34:43,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:34:43,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:34:43,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,763 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,799 INFO L175 MemorySlicer]: Split 124 memory accesses to 6 slices as follows [2, 14, 23, 8, 24, 53]. 43 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 2, 3, 1, 2, 4]. The 15 writes are split as follows [0, 2, 5, 2, 2, 4]. [2024-11-20 08:34:43,800 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,833 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:34:43,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:34:43,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:34:43,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:34:43,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (1/1) ... [2024-11-20 08:34:43,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:34:43,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:34:43,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:34:43,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:34:43,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:34:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:34:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:34:43,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:34:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:34:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:34:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-20 08:34:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:34:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:34:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:34:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:34:43,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:34:43,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:34:43,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:34:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:34:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-20 08:34:43,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:34:43,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:34:44,043 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:34:44,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:34:44,483 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-20 08:34:44,483 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:34:44,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:34:44,495 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:34:44,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:34:44 BoogieIcfgContainer [2024-11-20 08:34:44,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:34:44,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:34:44,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:34:44,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:34:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:34:43" (1/3) ... [2024-11-20 08:34:44,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334a2e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:34:44, skipping insertion in model container [2024-11-20 08:34:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:34:43" (2/3) ... [2024-11-20 08:34:44,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@334a2e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:34:44, skipping insertion in model container [2024-11-20 08:34:44,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:34:44" (3/3) ... [2024-11-20 08:34:44,502 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-ap_file-32.i [2024-11-20 08:34:44,515 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:34:44,515 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:34:44,566 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:34:44,571 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;@38498ba6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:34:44,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:34:44,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:34:44,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-20 08:34:44,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:44,586 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:44,587 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:44,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:44,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2092387816, now seen corresponding path program 1 times [2024-11-20 08:34:44,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:44,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827770555] [2024-11-20 08:34:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:44,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:44,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:44,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:44,949 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:44,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:44,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827770555] [2024-11-20 08:34:44,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827770555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:44,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:44,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:34:44,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576942883] [2024-11-20 08:34:44,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:44,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:34:44,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:44,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:34:44,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:34:44,996 INFO L87 Difference]: Start difference. First operand has 99 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 79 states have internal predecessors, (107), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:34:45,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:45,023 INFO L93 Difference]: Finished difference Result 191 states and 298 transitions. [2024-11-20 08:34:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:34:45,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 129 [2024-11-20 08:34:45,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:45,035 INFO L225 Difference]: With dead ends: 191 [2024-11-20 08:34:45,035 INFO L226 Difference]: Without dead ends: 95 [2024-11-20 08:34:45,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:34:45,042 INFO L432 NwaCegarLoop]: 132 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, 132 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 [2024-11-20 08:34:45,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-20 08:34:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-20 08:34:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.28) internal successors, (96), 75 states have internal predecessors, (96), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:34:45,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2024-11-20 08:34:45,091 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 129 [2024-11-20 08:34:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:45,092 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2024-11-20 08:34:45,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:34:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2024-11-20 08:34:45,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-20 08:34:45,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:45,095 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:45,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:34:45,096 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:45,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1151857908, now seen corresponding path program 1 times [2024-11-20 08:34:45,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:45,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085470386] [2024-11-20 08:34:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:45,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085470386] [2024-11-20 08:34:45,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085470386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:45,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:45,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 08:34:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193140856] [2024-11-20 08:34:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:45,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 08:34:45,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:45,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 08:34:45,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 08:34:45,615 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:45,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:45,770 INFO L93 Difference]: Finished difference Result 318 states and 444 transitions. [2024-11-20 08:34:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 08:34:45,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 129 [2024-11-20 08:34:45,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:45,773 INFO L225 Difference]: With dead ends: 318 [2024-11-20 08:34:45,773 INFO L226 Difference]: Without dead ends: 226 [2024-11-20 08:34:45,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:45,778 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 213 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:45,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 368 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:34:45,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-20 08:34:45,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 193. [2024-11-20 08:34:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 154 states have (on average 1.2857142857142858) internal successors, (198), 154 states have internal predecessors, (198), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-20 08:34:45,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 270 transitions. [2024-11-20 08:34:45,798 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 270 transitions. Word has length 129 [2024-11-20 08:34:45,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:45,799 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 270 transitions. [2024-11-20 08:34:45,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 270 transitions. [2024-11-20 08:34:45,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 08:34:45,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:45,801 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:45,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:34:45,801 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:45,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:45,802 INFO L85 PathProgramCache]: Analyzing trace with hash 732352654, now seen corresponding path program 1 times [2024-11-20 08:34:45,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:45,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339477962] [2024-11-20 08:34:45,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:45,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:46,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:46,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:46,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339477962] [2024-11-20 08:34:46,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339477962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:46,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:46,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 08:34:46,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40512660] [2024-11-20 08:34:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:46,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:34:46,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:46,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:34:46,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-20 08:34:46,868 INFO L87 Difference]: Start difference. First operand 193 states and 270 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:47,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:47,423 INFO L93 Difference]: Finished difference Result 543 states and 762 transitions. [2024-11-20 08:34:47,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 08:34:47,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2024-11-20 08:34:47,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:47,426 INFO L225 Difference]: With dead ends: 543 [2024-11-20 08:34:47,426 INFO L226 Difference]: Without dead ends: 353 [2024-11-20 08:34:47,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2024-11-20 08:34:47,428 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 232 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:47,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 706 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 491 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:34:47,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-20 08:34:47,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 349. [2024-11-20 08:34:47,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 284 states have (on average 1.2992957746478873) internal successors, (369), 286 states have internal predecessors, (369), 60 states have call successors, (60), 4 states have call predecessors, (60), 4 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:34:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 489 transitions. [2024-11-20 08:34:47,458 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 489 transitions. Word has length 137 [2024-11-20 08:34:47,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:47,459 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 489 transitions. [2024-11-20 08:34:47,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 489 transitions. [2024-11-20 08:34:47,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:47,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:47,461 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:47,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:34:47,462 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:47,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1144659733, now seen corresponding path program 1 times [2024-11-20 08:34:47,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:47,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071877471] [2024-11-20 08:34:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:47,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:50,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:50,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:50,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:51,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:51,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:51,032 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:51,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071877471] [2024-11-20 08:34:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071877471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:51,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:51,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 08:34:51,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806827926] [2024-11-20 08:34:51,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:51,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 08:34:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 08:34:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:34:51,036 INFO L87 Difference]: Start difference. First operand 349 states and 489 transitions. Second operand has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:34:56,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:56,488 INFO L93 Difference]: Finished difference Result 860 states and 1188 transitions. [2024-11-20 08:34:56,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 08:34:56,489 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 139 [2024-11-20 08:34:56,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:56,492 INFO L225 Difference]: With dead ends: 860 [2024-11-20 08:34:56,492 INFO L226 Difference]: Without dead ends: 514 [2024-11-20 08:34:56,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=234, Invalid=1098, Unknown=0, NotChecked=0, Total=1332 [2024-11-20 08:34:56,494 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 751 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1280 SdHoareTripleChecker+Invalid, 1802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:56,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1280 Invalid, 1802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-20 08:34:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-20 08:34:56,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 447. [2024-11-20 08:34:56,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 359 states have (on average 1.2785515320334262) internal successors, (459), 363 states have internal predecessors, (459), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-20 08:34:56,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 619 transitions. [2024-11-20 08:34:56,551 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 619 transitions. Word has length 139 [2024-11-20 08:34:56,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:56,552 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 619 transitions. [2024-11-20 08:34:56,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.888888888888889) internal successors, (52), 20 states have internal predecessors, (52), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:34:56,552 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 619 transitions. [2024-11-20 08:34:56,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:56,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:56,555 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:56,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:34:56,556 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:56,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:56,556 INFO L85 PathProgramCache]: Analyzing trace with hash 982324889, now seen corresponding path program 1 times [2024-11-20 08:34:56,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:56,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513005035] [2024-11-20 08:34:56,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:56,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:56,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:56,698 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:56,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:56,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513005035] [2024-11-20 08:34:56,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513005035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:56,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:56,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:34:56,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378359073] [2024-11-20 08:34:56,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:56,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:34:56,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:34:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:56,703 INFO L87 Difference]: Start difference. First operand 447 states and 619 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:56,754 INFO L93 Difference]: Finished difference Result 889 states and 1230 transitions. [2024-11-20 08:34:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:34:56,755 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 139 [2024-11-20 08:34:56,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:56,759 INFO L225 Difference]: With dead ends: 889 [2024-11-20 08:34:56,761 INFO L226 Difference]: Without dead ends: 462 [2024-11-20 08:34:56,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:34:56,763 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:56,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 500 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:34:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-20 08:34:56,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2024-11-20 08:34:56,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 374 states have (on average 1.267379679144385) internal successors, (474), 378 states have internal predecessors, (474), 80 states have call successors, (80), 7 states have call predecessors, (80), 7 states have return successors, (80), 76 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-20 08:34:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 634 transitions. [2024-11-20 08:34:56,805 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 634 transitions. Word has length 139 [2024-11-20 08:34:56,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:56,805 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 634 transitions. [2024-11-20 08:34:56,806 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, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:34:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 634 transitions. [2024-11-20 08:34:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 08:34:56,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:56,807 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:56,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 08:34:56,807 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:56,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash -932708075, now seen corresponding path program 1 times [2024-11-20 08:34:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:56,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239100130] [2024-11-20 08:34:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:56,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:56,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:34:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:34:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:34:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:34:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:34:58,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:34:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:34:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:34:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:34:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:34:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:34:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:34:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:34:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:34:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:34:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:34:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:34:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:34:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:34:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:34:58,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:34:58,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239100130] [2024-11-20 08:34:58,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239100130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:34:58,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:34:58,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 08:34:58,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102288713] [2024-11-20 08:34:58,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:34:58,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 08:34:58,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:34:58,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 08:34:58,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:34:58,178 INFO L87 Difference]: Start difference. First operand 462 states and 634 transitions. Second operand has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:34:59,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:34:59,717 INFO L93 Difference]: Finished difference Result 991 states and 1348 transitions. [2024-11-20 08:34:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 08:34:59,717 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 139 [2024-11-20 08:34:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:34:59,720 INFO L225 Difference]: With dead ends: 991 [2024-11-20 08:34:59,720 INFO L226 Difference]: Without dead ends: 549 [2024-11-20 08:34:59,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2024-11-20 08:34:59,722 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 404 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:34:59,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1383 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 08:34:59,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-20 08:34:59,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 376. [2024-11-20 08:34:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 309 states have (on average 1.2750809061488673) internal successors, (394), 311 states have internal predecessors, (394), 60 states have call successors, (60), 6 states have call predecessors, (60), 6 states have return successors, (60), 58 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:34:59,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 514 transitions. [2024-11-20 08:34:59,780 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 514 transitions. Word has length 139 [2024-11-20 08:34:59,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:34:59,781 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 514 transitions. [2024-11-20 08:34:59,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.466666666666667) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:34:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 514 transitions. [2024-11-20 08:34:59,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:34:59,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:34:59,782 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:34:59,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 08:34:59,782 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:34:59,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:34:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 905958465, now seen corresponding path program 1 times [2024-11-20 08:34:59,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:34:59,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572884114] [2024-11-20 08:34:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:34:59,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:34:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:01,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:01,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:01,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:01,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572884114] [2024-11-20 08:35:01,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572884114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:01,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:01,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 08:35:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158952673] [2024-11-20 08:35:01,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:01,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 08:35:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:01,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 08:35:01,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:35:01,488 INFO L87 Difference]: Start difference. First operand 376 states and 514 transitions. Second operand has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:07,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-20 08:35:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:07,576 INFO L93 Difference]: Finished difference Result 740 states and 1003 transitions. [2024-11-20 08:35:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 08:35:07,577 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-20 08:35:07,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:07,579 INFO L225 Difference]: With dead ends: 740 [2024-11-20 08:35:07,579 INFO L226 Difference]: Without dead ends: 567 [2024-11-20 08:35:07,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=217, Invalid=839, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 08:35:07,584 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 425 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1340 SdHoareTripleChecker+Invalid, 1727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:07,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1340 Invalid, 1727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-20 08:35:07,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-20 08:35:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 446. [2024-11-20 08:35:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 365 states have (on average 1.2657534246575342) internal successors, (462), 368 states have internal predecessors, (462), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:35:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 606 transitions. [2024-11-20 08:35:07,638 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 606 transitions. Word has length 140 [2024-11-20 08:35:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:07,638 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 606 transitions. [2024-11-20 08:35:07,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.1176470588235294) internal successors, (53), 19 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:07,639 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 606 transitions. [2024-11-20 08:35:07,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:35:07,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:07,641 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:07,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 08:35:07,641 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:07,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:07,641 INFO L85 PathProgramCache]: Analyzing trace with hash -422264557, now seen corresponding path program 1 times [2024-11-20 08:35:07,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:07,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085142312] [2024-11-20 08:35:07,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:07,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:09,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085142312] [2024-11-20 08:35:09,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085142312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:09,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:09,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 08:35:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143621122] [2024-11-20 08:35:09,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:09,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 08:35:09,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:09,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 08:35:09,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-20 08:35:09,459 INFO L87 Difference]: Start difference. First operand 446 states and 606 transitions. Second operand has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:12,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:12,139 INFO L93 Difference]: Finished difference Result 870 states and 1183 transitions. [2024-11-20 08:35:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 08:35:12,144 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 140 [2024-11-20 08:35:12,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:12,146 INFO L225 Difference]: With dead ends: 870 [2024-11-20 08:35:12,147 INFO L226 Difference]: Without dead ends: 631 [2024-11-20 08:35:12,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=274, Invalid=986, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 08:35:12,148 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 486 mSDsluCounter, 1104 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 1573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:12,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 1253 Invalid, 1573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 08:35:12,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-20 08:35:12,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 466. [2024-11-20 08:35:12,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 385 states have (on average 1.2753246753246754) internal successors, (491), 388 states have internal predecessors, (491), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:35:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 635 transitions. [2024-11-20 08:35:12,205 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 635 transitions. Word has length 140 [2024-11-20 08:35:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:12,205 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 635 transitions. [2024-11-20 08:35:12,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 20 states have internal predecessors, (53), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 635 transitions. [2024-11-20 08:35:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:35:12,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:12,207 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:12,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 08:35:12,207 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:12,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:12,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1228664258, now seen corresponding path program 1 times [2024-11-20 08:35:12,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:12,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768860466] [2024-11-20 08:35:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:13,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:13,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:13,144 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:13,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:13,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768860466] [2024-11-20 08:35:13,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768860466] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:13,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:13,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:35:13,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496765099] [2024-11-20 08:35:13,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:13,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:35:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:35:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:35:13,146 INFO L87 Difference]: Start difference. First operand 466 states and 635 transitions. Second operand has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:14,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:14,494 INFO L93 Difference]: Finished difference Result 1069 states and 1445 transitions. [2024-11-20 08:35:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 08:35:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-20 08:35:14,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:14,497 INFO L225 Difference]: With dead ends: 1069 [2024-11-20 08:35:14,497 INFO L226 Difference]: Without dead ends: 606 [2024-11-20 08:35:14,498 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-20 08:35:14,498 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 442 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:14,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1053 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 08:35:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-20 08:35:14,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 484. [2024-11-20 08:35:14,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 403 states have (on average 1.2754342431761787) internal successors, (514), 406 states have internal predecessors, (514), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 69 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 08:35:14,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 658 transitions. [2024-11-20 08:35:14,557 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 658 transitions. Word has length 141 [2024-11-20 08:35:14,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:14,558 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 658 transitions. [2024-11-20 08:35:14,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.153846153846154) internal successors, (54), 14 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 658 transitions. [2024-11-20 08:35:14,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:35:14,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:14,560 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:14,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 08:35:14,560 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:14,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:14,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1911355907, now seen corresponding path program 1 times [2024-11-20 08:35:14,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:14,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760498362] [2024-11-20 08:35:14,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:14,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:14,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:14,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:14,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:14,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:14,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760498362] [2024-11-20 08:35:14,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760498362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:14,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:14,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:14,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589367738] [2024-11-20 08:35:14,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:14,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:14,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:14,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:14,882 INFO L87 Difference]: Start difference. First operand 484 states and 658 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:15,055 INFO L93 Difference]: Finished difference Result 761 states and 1009 transitions. [2024-11-20 08:35:15,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:35:15,055 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 141 [2024-11-20 08:35:15,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:15,058 INFO L225 Difference]: With dead ends: 761 [2024-11-20 08:35:15,058 INFO L226 Difference]: Without dead ends: 759 [2024-11-20 08:35:15,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:35:15,059 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 51 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:15,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 810 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:35:15,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2024-11-20 08:35:15,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 752. [2024-11-20 08:35:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 646 states have (on average 1.258513931888545) internal successors, (813), 654 states have internal predecessors, (813), 92 states have call successors, (92), 13 states have call predecessors, (92), 13 states have return successors, (92), 84 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-20 08:35:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 997 transitions. [2024-11-20 08:35:15,142 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 997 transitions. Word has length 141 [2024-11-20 08:35:15,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:15,144 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 997 transitions. [2024-11-20 08:35:15,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:15,144 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 997 transitions. [2024-11-20 08:35:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:35:15,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:15,145 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:15,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 08:35:15,146 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:15,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:15,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1376374685, now seen corresponding path program 1 times [2024-11-20 08:35:15,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:15,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442179489] [2024-11-20 08:35:15,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:15,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:16,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:16,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:16,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:16,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:16,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:16,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:16,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:16,931 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:16,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:16,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442179489] [2024-11-20 08:35:16,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442179489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:16,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:16,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 08:35:16,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863585766] [2024-11-20 08:35:16,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:16,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 08:35:16,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:16,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 08:35:16,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:35:16,933 INFO L87 Difference]: Start difference. First operand 752 states and 997 transitions. Second operand has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:19,460 INFO L93 Difference]: Finished difference Result 1701 states and 2247 transitions. [2024-11-20 08:35:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 08:35:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-20 08:35:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:19,468 INFO L225 Difference]: With dead ends: 1701 [2024-11-20 08:35:19,468 INFO L226 Difference]: Without dead ends: 952 [2024-11-20 08:35:19,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 08:35:19,470 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 544 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:19,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1123 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-20 08:35:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2024-11-20 08:35:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 809. [2024-11-20 08:35:19,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 689 states have (on average 1.2467343976777938) internal successors, (859), 698 states have internal predecessors, (859), 104 states have call successors, (104), 15 states have call predecessors, (104), 15 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-20 08:35:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1067 transitions. [2024-11-20 08:35:19,575 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1067 transitions. Word has length 141 [2024-11-20 08:35:19,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 1067 transitions. [2024-11-20 08:35:19,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0) internal successors, (54), 19 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:19,576 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1067 transitions. [2024-11-20 08:35:19,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 08:35:19,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:19,578 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:19,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 08:35:19,578 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:19,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1250866724, now seen corresponding path program 1 times [2024-11-20 08:35:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81363412] [2024-11-20 08:35:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:19,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:20,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:20,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:20,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:20,461 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:20,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:20,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81363412] [2024-11-20 08:35:20,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81363412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:20,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:20,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-20 08:35:20,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525125706] [2024-11-20 08:35:20,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:20,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 08:35:20,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:20,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 08:35:20,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:35:20,463 INFO L87 Difference]: Start difference. First operand 809 states and 1067 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:21,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:21,684 INFO L93 Difference]: Finished difference Result 1687 states and 2221 transitions. [2024-11-20 08:35:21,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 08:35:21,685 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 141 [2024-11-20 08:35:21,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:21,688 INFO L225 Difference]: With dead ends: 1687 [2024-11-20 08:35:21,688 INFO L226 Difference]: Without dead ends: 881 [2024-11-20 08:35:21,690 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=896, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 08:35:21,690 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 173 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:21,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1659 Invalid, 1202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 08:35:21,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2024-11-20 08:35:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 801. [2024-11-20 08:35:21,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 681 states have (on average 1.2437591776798824) internal successors, (847), 690 states have internal predecessors, (847), 104 states have call successors, (104), 15 states have call predecessors, (104), 15 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-20 08:35:21,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1055 transitions. [2024-11-20 08:35:21,792 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1055 transitions. Word has length 141 [2024-11-20 08:35:21,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:21,792 INFO L471 AbstractCegarLoop]: Abstraction has 801 states and 1055 transitions. [2024-11-20 08:35:21,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:21,793 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1055 transitions. [2024-11-20 08:35:21,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:35:21,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:21,794 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:21,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 08:35:21,794 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:21,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1307651178, now seen corresponding path program 1 times [2024-11-20 08:35:21,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:21,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836035849] [2024-11-20 08:35:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:22,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:22,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,055 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:22,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836035849] [2024-11-20 08:35:22,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836035849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:22,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:22,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:22,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600070690] [2024-11-20 08:35:22,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:22,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:22,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:22,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:22,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:22,058 INFO L87 Difference]: Start difference. First operand 801 states and 1055 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:22,336 INFO L93 Difference]: Finished difference Result 1612 states and 2129 transitions. [2024-11-20 08:35:22,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:35:22,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 142 [2024-11-20 08:35:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:22,341 INFO L225 Difference]: With dead ends: 1612 [2024-11-20 08:35:22,342 INFO L226 Difference]: Without dead ends: 1138 [2024-11-20 08:35:22,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:35:22,344 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 74 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:22,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1008 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:35:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-20 08:35:22,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1061. [2024-11-20 08:35:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1061 states, 917 states have (on average 1.2540894220283534) internal successors, (1150), 930 states have internal predecessors, (1150), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-20 08:35:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1398 transitions. [2024-11-20 08:35:22,535 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1398 transitions. Word has length 142 [2024-11-20 08:35:22,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:22,535 INFO L471 AbstractCegarLoop]: Abstraction has 1061 states and 1398 transitions. [2024-11-20 08:35:22,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:22,536 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1398 transitions. [2024-11-20 08:35:22,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 08:35:22,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:22,537 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:22,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 08:35:22,537 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:22,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:22,538 INFO L85 PathProgramCache]: Analyzing trace with hash 2031090635, now seen corresponding path program 1 times [2024-11-20 08:35:22,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:22,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444038926] [2024-11-20 08:35:22,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:22,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:22,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:22,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:22,795 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:22,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:22,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444038926] [2024-11-20 08:35:22,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444038926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:22,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:22,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:35:22,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553581322] [2024-11-20 08:35:22,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:22,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:35:22,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:22,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:35:22,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:22,796 INFO L87 Difference]: Start difference. First operand 1061 states and 1398 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:23,176 INFO L93 Difference]: Finished difference Result 2595 states and 3414 transitions. [2024-11-20 08:35:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:35:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-20 08:35:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:23,181 INFO L225 Difference]: With dead ends: 2595 [2024-11-20 08:35:23,181 INFO L226 Difference]: Without dead ends: 1537 [2024-11-20 08:35:23,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:23,183 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 74 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:23,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 575 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:35:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2024-11-20 08:35:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1232. [2024-11-20 08:35:23,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1088 states have (on average 1.2472426470588236) internal successors, (1357), 1101 states have internal predecessors, (1357), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-20 08:35:23,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1605 transitions. [2024-11-20 08:35:23,303 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1605 transitions. Word has length 143 [2024-11-20 08:35:23,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:23,303 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1605 transitions. [2024-11-20 08:35:23,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1605 transitions. [2024-11-20 08:35:23,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-20 08:35:23,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:23,305 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:23,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 08:35:23,305 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:23,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:23,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1120267628, now seen corresponding path program 1 times [2024-11-20 08:35:23,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:23,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238426226] [2024-11-20 08:35:23,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:23,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:23,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:23,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238426226] [2024-11-20 08:35:23,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238426226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:23,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:23,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:35:23,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730355453] [2024-11-20 08:35:23,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:23,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:35:23,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:35:23,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:35:23,422 INFO L87 Difference]: Start difference. First operand 1232 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:23,585 INFO L93 Difference]: Finished difference Result 2914 states and 3790 transitions. [2024-11-20 08:35:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:35:23,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 143 [2024-11-20 08:35:23,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:23,590 INFO L225 Difference]: With dead ends: 2914 [2024-11-20 08:35:23,590 INFO L226 Difference]: Without dead ends: 1685 [2024-11-20 08:35:23,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:23,593 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 46 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:23,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 626 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:23,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2024-11-20 08:35:23,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1411. [2024-11-20 08:35:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 1267 states have (on average 1.2478295185477506) internal successors, (1581), 1280 states have internal predecessors, (1581), 124 states have call successors, (124), 19 states have call predecessors, (124), 19 states have return successors, (124), 111 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-20 08:35:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 1829 transitions. [2024-11-20 08:35:23,753 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 1829 transitions. Word has length 143 [2024-11-20 08:35:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:23,754 INFO L471 AbstractCegarLoop]: Abstraction has 1411 states and 1829 transitions. [2024-11-20 08:35:23,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 1829 transitions. [2024-11-20 08:35:23,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:35:23,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:23,755 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:23,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 08:35:23,755 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:23,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:23,756 INFO L85 PathProgramCache]: Analyzing trace with hash -170183969, now seen corresponding path program 1 times [2024-11-20 08:35:23,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:23,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943738394] [2024-11-20 08:35:23,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:23,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:23,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943738394] [2024-11-20 08:35:23,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943738394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:23,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:23,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:35:23,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520505181] [2024-11-20 08:35:23,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:23,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:35:23,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:23,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:35:23,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:23,945 INFO L87 Difference]: Start difference. First operand 1411 states and 1829 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:24,309 INFO L93 Difference]: Finished difference Result 2955 states and 3829 transitions. [2024-11-20 08:35:24,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:35:24,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-20 08:35:24,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:24,314 INFO L225 Difference]: With dead ends: 2955 [2024-11-20 08:35:24,315 INFO L226 Difference]: Without dead ends: 1547 [2024-11-20 08:35:24,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:24,317 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 77 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:24,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 570 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:35:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2024-11-20 08:35:24,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1144. [2024-11-20 08:35:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 985 states have (on average 1.2416243654822334) internal successors, (1223), 995 states have internal predecessors, (1223), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1495 transitions. [2024-11-20 08:35:24,501 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1495 transitions. Word has length 144 [2024-11-20 08:35:24,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:24,502 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 1495 transitions. [2024-11-20 08:35:24,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:24,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1495 transitions. [2024-11-20 08:35:24,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:35:24,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:24,504 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:24,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 08:35:24,504 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:24,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:24,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1427935694, now seen corresponding path program 1 times [2024-11-20 08:35:24,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:24,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794053806] [2024-11-20 08:35:24,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:24,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:24,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:24,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:24,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794053806] [2024-11-20 08:35:24,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794053806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:24,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:24,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:24,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821581387] [2024-11-20 08:35:24,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:24,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:24,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:24,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:24,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:24,616 INFO L87 Difference]: Start difference. First operand 1144 states and 1495 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:24,784 INFO L93 Difference]: Finished difference Result 2360 states and 3074 transitions. [2024-11-20 08:35:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:35:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-20 08:35:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:24,788 INFO L225 Difference]: With dead ends: 2360 [2024-11-20 08:35:24,789 INFO L226 Difference]: Without dead ends: 1219 [2024-11-20 08:35:24,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:24,797 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:24,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 742 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:24,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2024-11-20 08:35:24,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1163. [2024-11-20 08:35:24,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 1004 states have (on average 1.2370517928286853) internal successors, (1242), 1014 states have internal predecessors, (1242), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1514 transitions. [2024-11-20 08:35:24,986 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1514 transitions. Word has length 144 [2024-11-20 08:35:24,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:24,987 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1514 transitions. [2024-11-20 08:35:24,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:24,987 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1514 transitions. [2024-11-20 08:35:24,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-20 08:35:24,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:24,988 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:24,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 08:35:24,988 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:24,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:24,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1820962704, now seen corresponding path program 1 times [2024-11-20 08:35:24,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:24,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210193447] [2024-11-20 08:35:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:24,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:25,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:25,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210193447] [2024-11-20 08:35:25,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210193447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:25,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:25,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:35:25,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911359681] [2024-11-20 08:35:25,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:25,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:35:25,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:25,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:35:25,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:35:25,120 INFO L87 Difference]: Start difference. First operand 1163 states and 1514 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:25,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:25,391 INFO L93 Difference]: Finished difference Result 1937 states and 2529 transitions. [2024-11-20 08:35:25,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:35:25,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 144 [2024-11-20 08:35:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:25,396 INFO L225 Difference]: With dead ends: 1937 [2024-11-20 08:35:25,396 INFO L226 Difference]: Without dead ends: 1190 [2024-11-20 08:35:25,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:25,398 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 40 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:25,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 620 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:25,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2024-11-20 08:35:25,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1146. [2024-11-20 08:35:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 987 states have (on average 1.232016210739615) internal successors, (1216), 997 states have internal predecessors, (1216), 136 states have call successors, (136), 22 states have call predecessors, (136), 22 states have return successors, (136), 126 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:25,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1488 transitions. [2024-11-20 08:35:25,545 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1488 transitions. Word has length 144 [2024-11-20 08:35:25,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:25,545 INFO L471 AbstractCegarLoop]: Abstraction has 1146 states and 1488 transitions. [2024-11-20 08:35:25,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:25,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1488 transitions. [2024-11-20 08:35:25,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 08:35:25,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:25,546 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:25,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 08:35:25,547 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:25,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash 771515590, now seen corresponding path program 1 times [2024-11-20 08:35:25,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:25,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677485391] [2024-11-20 08:35:25,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:25,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:25,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:25,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:25,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677485391] [2024-11-20 08:35:25,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677485391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:25,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:25,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:35:25,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821826029] [2024-11-20 08:35:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:25,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:35:25,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:35:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:25,849 INFO L87 Difference]: Start difference. First operand 1146 states and 1488 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:26,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:26,304 INFO L93 Difference]: Finished difference Result 2269 states and 2935 transitions. [2024-11-20 08:35:26,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:35:26,305 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-20 08:35:26,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:26,308 INFO L225 Difference]: With dead ends: 2269 [2024-11-20 08:35:26,309 INFO L226 Difference]: Without dead ends: 1126 [2024-11-20 08:35:26,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:35:26,310 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 156 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:26,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 383 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:35:26,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-20 08:35:26,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 998. [2024-11-20 08:35:26,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 862 states have (on average 1.2238979118329467) internal successors, (1055), 870 states have internal predecessors, (1055), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-20 08:35:26,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1287 transitions. [2024-11-20 08:35:26,452 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1287 transitions. Word has length 145 [2024-11-20 08:35:26,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:26,452 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1287 transitions. [2024-11-20 08:35:26,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:26,452 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1287 transitions. [2024-11-20 08:35:26,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 08:35:26,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:26,453 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:26,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 08:35:26,454 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:26,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:26,454 INFO L85 PathProgramCache]: Analyzing trace with hash 758231866, now seen corresponding path program 1 times [2024-11-20 08:35:26,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:26,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106591694] [2024-11-20 08:35:26,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:26,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:26,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:26,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:26,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:26,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:26,700 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:26,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:26,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106591694] [2024-11-20 08:35:26,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106591694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:26,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:26,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:35:26,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158910788] [2024-11-20 08:35:26,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:26,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:35:26,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:26,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:35:26,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:35:26,701 INFO L87 Difference]: Start difference. First operand 998 states and 1287 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:27,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:27,017 INFO L93 Difference]: Finished difference Result 1891 states and 2439 transitions. [2024-11-20 08:35:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:35:27,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-20 08:35:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:27,023 INFO L225 Difference]: With dead ends: 1891 [2024-11-20 08:35:27,023 INFO L226 Difference]: Without dead ends: 1295 [2024-11-20 08:35:27,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:35:27,024 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 70 mSDsluCounter, 1008 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:27,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1197 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:35:27,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2024-11-20 08:35:27,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1096. [2024-11-20 08:35:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 960 states have (on average 1.2364583333333334) internal successors, (1187), 968 states have internal predecessors, (1187), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-20 08:35:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1419 transitions. [2024-11-20 08:35:27,171 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1419 transitions. Word has length 145 [2024-11-20 08:35:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:27,171 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1419 transitions. [2024-11-20 08:35:27,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:27,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1419 transitions. [2024-11-20 08:35:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 08:35:27,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:27,176 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:27,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 08:35:27,176 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:27,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:27,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1047206468, now seen corresponding path program 1 times [2024-11-20 08:35:27,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:27,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991273881] [2024-11-20 08:35:27,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:27,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:27,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:27,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991273881] [2024-11-20 08:35:27,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991273881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:27,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:27,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:35:27,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575283647] [2024-11-20 08:35:27,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:27,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:35:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:35:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:35:27,280 INFO L87 Difference]: Start difference. First operand 1096 states and 1419 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:27,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:27,465 INFO L93 Difference]: Finished difference Result 2322 states and 2992 transitions. [2024-11-20 08:35:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:35:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 145 [2024-11-20 08:35:27,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:27,469 INFO L225 Difference]: With dead ends: 2322 [2024-11-20 08:35:27,469 INFO L226 Difference]: Without dead ends: 1229 [2024-11-20 08:35:27,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:27,471 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 43 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:27,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 620 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:27,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2024-11-20 08:35:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1089. [2024-11-20 08:35:27,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 953 states have (on average 1.2329485834207765) internal successors, (1175), 961 states have internal predecessors, (1175), 116 states have call successors, (116), 19 states have call predecessors, (116), 19 states have return successors, (116), 108 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-20 08:35:27,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1407 transitions. [2024-11-20 08:35:27,633 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1407 transitions. Word has length 145 [2024-11-20 08:35:27,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:27,633 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1407 transitions. [2024-11-20 08:35:27,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1407 transitions. [2024-11-20 08:35:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-20 08:35:27,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:27,635 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:27,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 08:35:27,635 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:27,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:27,635 INFO L85 PathProgramCache]: Analyzing trace with hash -118147956, now seen corresponding path program 1 times [2024-11-20 08:35:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:27,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582867277] [2024-11-20 08:35:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:27,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:27,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582867277] [2024-11-20 08:35:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582867277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:27,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:27,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:27,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263898867] [2024-11-20 08:35:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:27,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:27,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:27,982 INFO L87 Difference]: Start difference. First operand 1089 states and 1407 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:28,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:28,520 INFO L93 Difference]: Finished difference Result 2440 states and 3134 transitions. [2024-11-20 08:35:28,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:35:28,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2024-11-20 08:35:28,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:28,525 INFO L225 Difference]: With dead ends: 2440 [2024-11-20 08:35:28,525 INFO L226 Difference]: Without dead ends: 1354 [2024-11-20 08:35:28,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:35:28,527 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 205 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:28,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 361 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:35:28,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2024-11-20 08:35:28,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1122. [2024-11-20 08:35:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 967 states have (on average 1.2119958634953465) internal successors, (1172), 977 states have internal predecessors, (1172), 132 states have call successors, (132), 22 states have call predecessors, (132), 22 states have return successors, (132), 122 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-20 08:35:28,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1436 transitions. [2024-11-20 08:35:28,784 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1436 transitions. Word has length 145 [2024-11-20 08:35:28,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:28,784 INFO L471 AbstractCegarLoop]: Abstraction has 1122 states and 1436 transitions. [2024-11-20 08:35:28,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:28,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1436 transitions. [2024-11-20 08:35:28,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 08:35:28,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:28,785 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:28,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 08:35:28,786 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:28,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:28,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1026702444, now seen corresponding path program 1 times [2024-11-20 08:35:28,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:28,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787503195] [2024-11-20 08:35:28,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:29,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:29,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:29,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:29,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:29,739 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:29,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:29,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787503195] [2024-11-20 08:35:29,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787503195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:29,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:29,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 08:35:29,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446257304] [2024-11-20 08:35:29,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:29,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 08:35:29,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:29,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 08:35:29,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:35:29,740 INFO L87 Difference]: Start difference. First operand 1122 states and 1436 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:35:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:30,798 INFO L93 Difference]: Finished difference Result 2110 states and 2643 transitions. [2024-11-20 08:35:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-20 08:35:30,798 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-20 08:35:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:30,805 INFO L225 Difference]: With dead ends: 2110 [2024-11-20 08:35:30,805 INFO L226 Difference]: Without dead ends: 2108 [2024-11-20 08:35:30,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=1062, Unknown=0, NotChecked=0, Total=1260 [2024-11-20 08:35:30,806 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 305 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:30,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 1203 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:35:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2108 states. [2024-11-20 08:35:31,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2108 to 1580. [2024-11-20 08:35:31,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1395 states have (on average 1.1935483870967742) internal successors, (1665), 1411 states have internal predecessors, (1665), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-20 08:35:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 1977 transitions. [2024-11-20 08:35:31,060 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 1977 transitions. Word has length 147 [2024-11-20 08:35:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:31,060 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 1977 transitions. [2024-11-20 08:35:31,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:35:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 1977 transitions. [2024-11-20 08:35:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 08:35:31,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:31,062 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:31,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 08:35:31,062 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:31,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:31,062 INFO L85 PathProgramCache]: Analyzing trace with hash 2084066237, now seen corresponding path program 1 times [2024-11-20 08:35:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:31,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397100338] [2024-11-20 08:35:31,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:31,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:31,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:31,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:31,480 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:31,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:31,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397100338] [2024-11-20 08:35:31,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397100338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:31,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:31,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:35:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113421097] [2024-11-20 08:35:31,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:31,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:35:31,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:31,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:35:31,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:35:31,482 INFO L87 Difference]: Start difference. First operand 1580 states and 1977 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:32,323 INFO L93 Difference]: Finished difference Result 3514 states and 4384 transitions. [2024-11-20 08:35:32,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:35:32,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-20 08:35:32,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:32,334 INFO L225 Difference]: With dead ends: 3514 [2024-11-20 08:35:32,335 INFO L226 Difference]: Without dead ends: 1937 [2024-11-20 08:35:32,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-20 08:35:32,337 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 244 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:32,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 792 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:35:32,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1937 states. [2024-11-20 08:35:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1937 to 1627. [2024-11-20 08:35:32,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1442 states have (on average 1.1907073509015256) internal successors, (1717), 1458 states have internal predecessors, (1717), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-20 08:35:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2029 transitions. [2024-11-20 08:35:32,571 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2029 transitions. Word has length 147 [2024-11-20 08:35:32,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:32,571 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 2029 transitions. [2024-11-20 08:35:32,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:32,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2029 transitions. [2024-11-20 08:35:32,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-20 08:35:32,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:32,573 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:32,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 08:35:32,574 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:32,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1462826518, now seen corresponding path program 1 times [2024-11-20 08:35:32,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:32,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778276088] [2024-11-20 08:35:32,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:32,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:32,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:32,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:32,686 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:32,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:32,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778276088] [2024-11-20 08:35:32,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778276088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:32,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:32,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 08:35:32,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082939432] [2024-11-20 08:35:32,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:32,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 08:35:32,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:32,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 08:35:32,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 08:35:32,687 INFO L87 Difference]: Start difference. First operand 1627 states and 2029 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:32,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:32,954 INFO L93 Difference]: Finished difference Result 3586 states and 4451 transitions. [2024-11-20 08:35:32,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 08:35:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 147 [2024-11-20 08:35:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:32,969 INFO L225 Difference]: With dead ends: 3586 [2024-11-20 08:35:32,971 INFO L226 Difference]: Without dead ends: 1962 [2024-11-20 08:35:32,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:35:32,976 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 31 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:32,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 593 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:32,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-20 08:35:33,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1864. [2024-11-20 08:35:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1679 states have (on average 1.1899940440738535) internal successors, (1998), 1695 states have internal predecessors, (1998), 156 states have call successors, (156), 28 states have call predecessors, (156), 28 states have return successors, (156), 140 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-20 08:35:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 2310 transitions. [2024-11-20 08:35:33,320 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 2310 transitions. Word has length 147 [2024-11-20 08:35:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:33,321 INFO L471 AbstractCegarLoop]: Abstraction has 1864 states and 2310 transitions. [2024-11-20 08:35:33,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:33,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 2310 transitions. [2024-11-20 08:35:33,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 08:35:33,322 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:33,322 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:33,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 08:35:33,323 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:33,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:33,323 INFO L85 PathProgramCache]: Analyzing trace with hash -364949336, now seen corresponding path program 1 times [2024-11-20 08:35:33,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:33,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294671752] [2024-11-20 08:35:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:33,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:33,823 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:33,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:33,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294671752] [2024-11-20 08:35:33,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294671752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:33,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:33,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:35:33,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664065265] [2024-11-20 08:35:33,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:33,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:35:33,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:33,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:35:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:35:33,825 INFO L87 Difference]: Start difference. First operand 1864 states and 2310 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:35,103 INFO L93 Difference]: Finished difference Result 4236 states and 5249 transitions. [2024-11-20 08:35:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 08:35:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-20 08:35:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:35,110 INFO L225 Difference]: With dead ends: 4236 [2024-11-20 08:35:35,110 INFO L226 Difference]: Without dead ends: 2375 [2024-11-20 08:35:35,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:35:35,113 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 261 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:35,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 876 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:35:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2375 states. [2024-11-20 08:35:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2375 to 1735. [2024-11-20 08:35:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1574 states have (on average 1.196315120711563) internal successors, (1883), 1587 states have internal predecessors, (1883), 136 states have call successors, (136), 24 states have call predecessors, (136), 24 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:35,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2155 transitions. [2024-11-20 08:35:35,382 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2155 transitions. Word has length 148 [2024-11-20 08:35:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:35,382 INFO L471 AbstractCegarLoop]: Abstraction has 1735 states and 2155 transitions. [2024-11-20 08:35:35,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2155 transitions. [2024-11-20 08:35:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 08:35:35,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:35,384 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:35,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 08:35:35,384 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:35,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:35,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1549147951, now seen corresponding path program 1 times [2024-11-20 08:35:35,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:35,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477963373] [2024-11-20 08:35:35,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:35,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:35,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:35,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:35,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 12 proven. 39 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-20 08:35:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477963373] [2024-11-20 08:35:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477963373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:35:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592815937] [2024-11-20 08:35:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:35,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:35:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:35:35,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:35:35,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 08:35:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:35,858 INFO L255 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-20 08:35:35,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:35:36,054 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 [2024-11-20 08:35:36,161 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 27 treesize of output 11 [2024-11-20 08:35:36,264 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 15 treesize of output 7 [2024-11-20 08:35:36,268 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 29 proven. 291 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-20 08:35:36,268 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 08:35:36,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592815937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:35:36,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 08:35:36,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2024-11-20 08:35:36,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419231339] [2024-11-20 08:35:36,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 08:35:36,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 08:35:36,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:36,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 08:35:36,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:35:36,454 INFO L87 Difference]: Start difference. First operand 1735 states and 2155 transitions. Second operand has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-20 08:35:37,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:37,050 INFO L93 Difference]: Finished difference Result 3681 states and 4540 transitions. [2024-11-20 08:35:37,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:35:37,051 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) Word has length 148 [2024-11-20 08:35:37,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:37,056 INFO L225 Difference]: With dead ends: 3681 [2024-11-20 08:35:37,056 INFO L226 Difference]: Without dead ends: 1949 [2024-11-20 08:35:37,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-20 08:35:37,059 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 244 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:37,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1027 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 08:35:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-11-20 08:35:37,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1890. [2024-11-20 08:35:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1699 states have (on average 1.175985874043555) internal successors, (1998), 1717 states have internal predecessors, (1998), 156 states have call successors, (156), 34 states have call predecessors, (156), 34 states have return successors, (156), 138 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-20 08:35:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2310 transitions. [2024-11-20 08:35:37,353 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2310 transitions. Word has length 148 [2024-11-20 08:35:37,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:37,353 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2310 transitions. [2024-11-20 08:35:37,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.7) internal successors, (77), 12 states have internal predecessors, (77), 5 states have call successors, (36), 4 states have call predecessors, (36), 6 states have return successors, (36), 3 states have call predecessors, (36), 5 states have call successors, (36) [2024-11-20 08:35:37,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2310 transitions. [2024-11-20 08:35:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 08:35:37,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:37,356 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:37,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 08:35:37,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-20 08:35:37,557 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:37,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1683161457, now seen corresponding path program 1 times [2024-11-20 08:35:37,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:37,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56057900] [2024-11-20 08:35:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:37,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:38,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:38,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:38,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:38,226 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:38,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:38,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56057900] [2024-11-20 08:35:38,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56057900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:38,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:38,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:35:38,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743984501] [2024-11-20 08:35:38,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:38,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:35:38,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:38,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:35:38,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:35:38,229 INFO L87 Difference]: Start difference. First operand 1890 states and 2310 transitions. Second operand has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 08:35:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:39,052 INFO L93 Difference]: Finished difference Result 3817 states and 4654 transitions. [2024-11-20 08:35:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:35:39,052 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 148 [2024-11-20 08:35:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:39,057 INFO L225 Difference]: With dead ends: 3817 [2024-11-20 08:35:39,057 INFO L226 Difference]: Without dead ends: 1930 [2024-11-20 08:35:39,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-20 08:35:39,060 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 330 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:39,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 583 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:35:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2024-11-20 08:35:39,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1780. [2024-11-20 08:35:39,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1780 states, 1609 states have (on average 1.1796146674953387) internal successors, (1898), 1622 states have internal predecessors, (1898), 136 states have call successors, (136), 34 states have call predecessors, (136), 34 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1780 states to 1780 states and 2170 transitions. [2024-11-20 08:35:39,349 INFO L78 Accepts]: Start accepts. Automaton has 1780 states and 2170 transitions. Word has length 148 [2024-11-20 08:35:39,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:39,350 INFO L471 AbstractCegarLoop]: Abstraction has 1780 states and 2170 transitions. [2024-11-20 08:35:39,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.1) internal successors, (61), 11 states have internal predecessors, (61), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-20 08:35:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1780 states and 2170 transitions. [2024-11-20 08:35:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 08:35:39,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:39,351 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:39,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 08:35:39,352 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:39,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:39,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1802459213, now seen corresponding path program 1 times [2024-11-20 08:35:39,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:39,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873582571] [2024-11-20 08:35:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:39,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:39,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:39,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:39,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873582571] [2024-11-20 08:35:39,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873582571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:39,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:39,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 08:35:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782769478] [2024-11-20 08:35:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:39,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 08:35:39,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 08:35:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-20 08:35:39,620 INFO L87 Difference]: Start difference. First operand 1780 states and 2170 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:40,045 INFO L93 Difference]: Finished difference Result 1944 states and 2357 transitions. [2024-11-20 08:35:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 08:35:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 148 [2024-11-20 08:35:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:40,050 INFO L225 Difference]: With dead ends: 1944 [2024-11-20 08:35:40,051 INFO L226 Difference]: Without dead ends: 1942 [2024-11-20 08:35:40,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-20 08:35:40,052 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 50 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:40,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 1653 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:35:40,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2024-11-20 08:35:40,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1785. [2024-11-20 08:35:40,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1614 states have (on average 1.1790582403965304) internal successors, (1903), 1627 states have internal predecessors, (1903), 136 states have call successors, (136), 34 states have call predecessors, (136), 34 states have return successors, (136), 123 states have call predecessors, (136), 136 states have call successors, (136) [2024-11-20 08:35:40,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2175 transitions. [2024-11-20 08:35:40,341 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2175 transitions. Word has length 148 [2024-11-20 08:35:40,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:40,341 INFO L471 AbstractCegarLoop]: Abstraction has 1785 states and 2175 transitions. [2024-11-20 08:35:40,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:40,341 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2175 transitions. [2024-11-20 08:35:40,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-20 08:35:40,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:40,342 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:40,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 08:35:40,343 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:40,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:40,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1220797207, now seen corresponding path program 1 times [2024-11-20 08:35:40,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:40,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607386863] [2024-11-20 08:35:40,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:40,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:40,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:40,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:40,731 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:40,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607386863] [2024-11-20 08:35:40,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607386863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:40,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:40,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:40,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890027507] [2024-11-20 08:35:40,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:40,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:40,733 INFO L87 Difference]: Start difference. First operand 1785 states and 2175 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:41,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:41,558 INFO L93 Difference]: Finished difference Result 3832 states and 4653 transitions. [2024-11-20 08:35:41,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:35:41,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 148 [2024-11-20 08:35:41,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:41,563 INFO L225 Difference]: With dead ends: 3832 [2024-11-20 08:35:41,564 INFO L226 Difference]: Without dead ends: 2050 [2024-11-20 08:35:41,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:35:41,566 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 164 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:41,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 505 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:35:41,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2024-11-20 08:35:41,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 1185. [2024-11-20 08:35:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 1108 states have (on average 1.1850180505415162) internal successors, (1313), 1112 states have internal predecessors, (1313), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1433 transitions. [2024-11-20 08:35:41,773 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1433 transitions. Word has length 148 [2024-11-20 08:35:41,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:41,773 INFO L471 AbstractCegarLoop]: Abstraction has 1185 states and 1433 transitions. [2024-11-20 08:35:41,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:41,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1433 transitions. [2024-11-20 08:35:41,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-20 08:35:41,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:41,775 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:41,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 08:35:41,775 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:41,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash -423300530, now seen corresponding path program 1 times [2024-11-20 08:35:41,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:41,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470902381] [2024-11-20 08:35:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:41,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:42,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:42,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:42,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:42,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:42,765 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:42,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:42,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470902381] [2024-11-20 08:35:42,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470902381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:42,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:42,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 08:35:42,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380164849] [2024-11-20 08:35:42,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:42,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 08:35:42,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:42,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 08:35:42,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-20 08:35:42,768 INFO L87 Difference]: Start difference. First operand 1185 states and 1433 transitions. Second operand has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:44,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:44,370 INFO L93 Difference]: Finished difference Result 2921 states and 3496 transitions. [2024-11-20 08:35:44,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 08:35:44,370 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 150 [2024-11-20 08:35:44,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:44,373 INFO L225 Difference]: With dead ends: 2921 [2024-11-20 08:35:44,373 INFO L226 Difference]: Without dead ends: 1739 [2024-11-20 08:35:44,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-11-20 08:35:44,376 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 428 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:44,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 742 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 08:35:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2024-11-20 08:35:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1367. [2024-11-20 08:35:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 1290 states have (on average 1.1744186046511629) internal successors, (1515), 1294 states have internal predecessors, (1515), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:44,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1635 transitions. [2024-11-20 08:35:44,579 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1635 transitions. Word has length 150 [2024-11-20 08:35:44,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:44,580 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 1635 transitions. [2024-11-20 08:35:44,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.5) internal successors, (63), 15 states have internal predecessors, (63), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-20 08:35:44,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1635 transitions. [2024-11-20 08:35:44,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 08:35:44,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:44,582 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:44,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 08:35:44,582 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:44,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:44,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1453918623, now seen corresponding path program 1 times [2024-11-20 08:35:44,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:44,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842909321] [2024-11-20 08:35:44,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:44,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:44,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:44,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:44,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:44,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:44,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:44,996 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:44,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:44,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842909321] [2024-11-20 08:35:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842909321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 08:35:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210875869] [2024-11-20 08:35:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:44,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 08:35:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:44,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 08:35:44,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:35:44,997 INFO L87 Difference]: Start difference. First operand 1367 states and 1635 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:45,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:45,920 INFO L93 Difference]: Finished difference Result 3066 states and 3652 transitions. [2024-11-20 08:35:45,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 08:35:45,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 151 [2024-11-20 08:35:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:45,924 INFO L225 Difference]: With dead ends: 3066 [2024-11-20 08:35:45,924 INFO L226 Difference]: Without dead ends: 1702 [2024-11-20 08:35:45,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-20 08:35:45,928 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 134 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:45,928 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 959 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 08:35:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-20 08:35:46,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1342. [2024-11-20 08:35:46,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 1265 states have (on average 1.1731225296442689) internal successors, (1484), 1269 states have internal predecessors, (1484), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:46,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1604 transitions. [2024-11-20 08:35:46,141 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1604 transitions. Word has length 151 [2024-11-20 08:35:46,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:46,145 INFO L471 AbstractCegarLoop]: Abstraction has 1342 states and 1604 transitions. [2024-11-20 08:35:46,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1604 transitions. [2024-11-20 08:35:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-20 08:35:46,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:46,147 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:46,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 08:35:46,147 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:46,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:46,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1214860747, now seen corresponding path program 1 times [2024-11-20 08:35:46,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:46,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739483354] [2024-11-20 08:35:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:46,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:48,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:48,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739483354] [2024-11-20 08:35:48,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739483354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:48,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:48,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 08:35:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712687438] [2024-11-20 08:35:48,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:48,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 08:35:48,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 08:35:48,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-11-20 08:35:48,477 INFO L87 Difference]: Start difference. First operand 1342 states and 1604 transitions. Second operand has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:51,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:51,714 INFO L93 Difference]: Finished difference Result 2953 states and 3519 transitions. [2024-11-20 08:35:51,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 08:35:51,716 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) Word has length 151 [2024-11-20 08:35:51,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:51,720 INFO L225 Difference]: With dead ends: 2953 [2024-11-20 08:35:51,720 INFO L226 Difference]: Without dead ends: 1614 [2024-11-20 08:35:51,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=179, Invalid=877, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 08:35:51,722 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 415 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1576 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 1754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 1576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:51,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1570 Invalid, 1754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 1576 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 08:35:51,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2024-11-20 08:35:51,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1325. [2024-11-20 08:35:51,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1325 states, 1248 states have (on average 1.1754807692307692) internal successors, (1467), 1252 states have internal predecessors, (1467), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:51,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1325 states to 1325 states and 1587 transitions. [2024-11-20 08:35:51,922 INFO L78 Accepts]: Start accepts. Automaton has 1325 states and 1587 transitions. Word has length 151 [2024-11-20 08:35:51,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:51,923 INFO L471 AbstractCegarLoop]: Abstraction has 1325 states and 1587 transitions. [2024-11-20 08:35:51,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.764705882352941) internal successors, (64), 19 states have internal predecessors, (64), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-20 08:35:51,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1325 states and 1587 transitions. [2024-11-20 08:35:51,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-20 08:35:51,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:51,924 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:51,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-20 08:35:51,924 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:51,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash 785341998, now seen corresponding path program 1 times [2024-11-20 08:35:51,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:51,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624428264] [2024-11-20 08:35:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:51,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:51,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:52,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:52,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:52,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624428264] [2024-11-20 08:35:52,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624428264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:52,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:52,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 08:35:52,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431431840] [2024-11-20 08:35:52,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:52,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 08:35:52,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 08:35:52,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-20 08:35:52,209 INFO L87 Difference]: Start difference. First operand 1325 states and 1587 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:52,790 INFO L93 Difference]: Finished difference Result 2711 states and 3240 transitions. [2024-11-20 08:35:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 08:35:52,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 154 [2024-11-20 08:35:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:52,793 INFO L225 Difference]: With dead ends: 2711 [2024-11-20 08:35:52,793 INFO L226 Difference]: Without dead ends: 1389 [2024-11-20 08:35:52,794 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:35:52,797 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 55 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:52,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 594 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:35:52,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-11-20 08:35:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1166. [2024-11-20 08:35:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1089 states have (on average 1.179981634527089) internal successors, (1285), 1093 states have internal predecessors, (1285), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1405 transitions. [2024-11-20 08:35:53,031 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1405 transitions. Word has length 154 [2024-11-20 08:35:53,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:53,031 INFO L471 AbstractCegarLoop]: Abstraction has 1166 states and 1405 transitions. [2024-11-20 08:35:53,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1405 transitions. [2024-11-20 08:35:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-20 08:35:53,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:53,032 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:53,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-20 08:35:53,032 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:53,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1828188397, now seen corresponding path program 1 times [2024-11-20 08:35:53,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:53,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454448060] [2024-11-20 08:35:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:53,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:53,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:53,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:53,481 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:35:53,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:53,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454448060] [2024-11-20 08:35:53,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454448060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:53,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:53,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:35:53,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348769991] [2024-11-20 08:35:53,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:53,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:35:53,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:53,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:35:53,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:35:53,484 INFO L87 Difference]: Start difference. First operand 1166 states and 1405 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:54,117 INFO L93 Difference]: Finished difference Result 2391 states and 2876 transitions. [2024-11-20 08:35:54,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:35:54,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 155 [2024-11-20 08:35:54,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:54,120 INFO L225 Difference]: With dead ends: 2391 [2024-11-20 08:35:54,120 INFO L226 Difference]: Without dead ends: 1228 [2024-11-20 08:35:54,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-20 08:35:54,122 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:54,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 892 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 08:35:54,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-20 08:35:54,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1099. [2024-11-20 08:35:54,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 1022 states have (on average 1.181996086105675) internal successors, (1208), 1026 states have internal predecessors, (1208), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:54,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1328 transitions. [2024-11-20 08:35:54,337 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1328 transitions. Word has length 155 [2024-11-20 08:35:54,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:54,338 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1328 transitions. [2024-11-20 08:35:54,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 8 states have internal predecessors, (68), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1328 transitions. [2024-11-20 08:35:54,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-11-20 08:35:54,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:54,341 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:54,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 08:35:54,341 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:54,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:54,341 INFO L85 PathProgramCache]: Analyzing trace with hash -978363289, now seen corresponding path program 1 times [2024-11-20 08:35:54,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:54,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370019548] [2024-11-20 08:35:54,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:54,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:54,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:54,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:54,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:54,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:54,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 08:35:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 08:35:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-20 08:35:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 08:35:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-20 08:35:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 08:35:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 08:35:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 08:35:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-20 08:35:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-20 08:35:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-20 08:35:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-20 08:35:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-20 08:35:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-20 08:35:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-20 08:35:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-20 08:35:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-20 08:35:54,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-20 08:35:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2577 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2560 trivial. 0 not checked. [2024-11-20 08:35:54,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370019548] [2024-11-20 08:35:54,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370019548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:35:54,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:35:54,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 08:35:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709336684] [2024-11-20 08:35:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:35:54,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 08:35:54,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:35:54,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 08:35:54,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:35:54,435 INFO L87 Difference]: Start difference. First operand 1099 states and 1328 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:54,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:35:54,689 INFO L93 Difference]: Finished difference Result 1863 states and 2255 transitions. [2024-11-20 08:35:54,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 08:35:54,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 274 [2024-11-20 08:35:54,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:35:54,693 INFO L225 Difference]: With dead ends: 1863 [2024-11-20 08:35:54,693 INFO L226 Difference]: Without dead ends: 1168 [2024-11-20 08:35:54,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:35:54,695 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 41 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:35:54,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 299 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:35:54,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-11-20 08:35:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1046. [2024-11-20 08:35:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 969 states have (on average 1.1578947368421053) internal successors, (1122), 973 states have internal predecessors, (1122), 60 states have call successors, (60), 16 states have call predecessors, (60), 16 states have return successors, (60), 56 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-20 08:35:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1242 transitions. [2024-11-20 08:35:54,912 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1242 transitions. Word has length 274 [2024-11-20 08:35:54,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:35:54,912 INFO L471 AbstractCegarLoop]: Abstraction has 1046 states and 1242 transitions. [2024-11-20 08:35:54,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:35:54,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1242 transitions. [2024-11-20 08:35:54,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2024-11-20 08:35:54,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:35:54,914 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:35:54,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 08:35:54,914 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:35:54,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:35:54,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1815203429, now seen corresponding path program 1 times [2024-11-20 08:35:54,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:35:54,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122837030] [2024-11-20 08:35:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:54,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:35:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:35:57,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:35:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:35:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:35:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:35:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:35:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-20 08:35:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-20 08:35:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:35:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:35:57,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:35:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:35:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:35:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:35:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:35:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:35:57,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:35:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:35:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-20 08:35:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-20 08:35:57,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-20 08:35:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-20 08:35:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-20 08:35:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 08:35:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 08:35:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 08:35:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-20 08:35:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-20 08:35:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-20 08:35:57,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-20 08:35:57,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-20 08:35:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2024-11-20 08:35:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-20 08:35:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2024-11-20 08:35:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2024-11-20 08:35:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-20 08:35:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 20 proven. 41 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2024-11-20 08:35:57,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:35:57,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122837030] [2024-11-20 08:35:57,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122837030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 08:35:57,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619448030] [2024-11-20 08:35:57,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:35:57,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 08:35:57,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:35:57,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 08:35:57,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 08:35:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:35:58,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-20 08:35:58,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 08:36:02,254 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 [2024-11-20 08:36:02,469 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 [2024-11-20 08:36:02,724 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 [2024-11-20 08:36:03,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 08:36:03,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 08:36:03,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 08:36:03,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2024-11-20 08:36:03,465 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 08:36:03,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 23 [2024-11-20 08:36:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2581 backedges. 8 proven. 291 refuted. 0 times theorem prover too weak. 2282 trivial. 0 not checked. [2024-11-20 08:36:03,540 INFO L311 TraceCheckSpWp]: Computing backward predicates...