./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-a_file-80.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-80.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 7435769e205a5a22a211f82999711a463f5dd426d6bac372f4ec13ff649b3c52 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 06:01:52,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 06:01:52,727 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 06:01:52,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 06:01:52,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 06:01:52,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 06:01:52,755 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 06:01:52,756 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 06:01:52,756 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 06:01:52,757 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 06:01:52,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 06:01:52,757 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 06:01:52,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 06:01:52,758 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 06:01:52,759 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 06:01:52,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 06:01:52,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 06:01:52,760 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 06:01:52,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 06:01:52,761 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 06:01:52,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 06:01:52,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 06:01:52,762 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 06:01:52,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 06:01:52,762 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 06:01:52,763 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 06:01:52,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 06:01:52,764 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 06:01:52,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 06:01:52,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 06:01:52,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 06:01:52,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 06:01:52,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:01:52,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 06:01:52,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 06:01:52,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 06:01:52,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 06:01:52,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 06:01:52,767 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 06:01:52,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 06:01:52,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 06:01:52,770 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 06:01:52,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7435769e205a5a22a211f82999711a463f5dd426d6bac372f4ec13ff649b3c52 [2024-10-13 06:01:53,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 06:01:53,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 06:01:53,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 06:01:53,067 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 06:01:53,068 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 06:01:53,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-80.i [2024-10-13 06:01:54,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 06:01:54,778 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 06:01:54,778 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-80.i [2024-10-13 06:01:54,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dc1fd405/2063c4c283ff4606ac2429ec205e7b1d/FLAG707d2398f [2024-10-13 06:01:55,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dc1fd405/2063c4c283ff4606ac2429ec205e7b1d [2024-10-13 06:01:55,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 06:01:55,118 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 06:01:55,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 06:01:55,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 06:01:55,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 06:01:55,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e87f9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55, skipping insertion in model container [2024-10-13 06:01:55,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 06:01:55,356 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-80.i[916,929] [2024-10-13 06:01:55,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:01:55,473 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 06:01:55,484 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-80.i[916,929] [2024-10-13 06:01:55,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 06:01:55,598 INFO L204 MainTranslator]: Completed translation [2024-10-13 06:01:55,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55 WrapperNode [2024-10-13 06:01:55,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 06:01:55,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 06:01:55,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 06:01:55,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 06:01:55,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,675 INFO L138 Inliner]: procedures = 29, calls = 233, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 772 [2024-10-13 06:01:55,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 06:01:55,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 06:01:55,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 06:01:55,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 06:01:55,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,733 INFO L175 MemorySlicer]: Split 199 memory accesses to 7 slices as follows [2, 6, 98, 36, 11, 23, 23]. 49 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 1, 8, 3, 1, 3, 1]. The 19 writes are split as follows [0, 1, 9, 4, 1, 3, 1]. [2024-10-13 06:01:55,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,819 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 06:01:55,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 06:01:55,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 06:01:55,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 06:01:55,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (1/1) ... [2024-10-13 06:01:55,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 06:01:55,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:01:55,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 06:01:55,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 06:01:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 06:01:55,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 06:01:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 06:01:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 06:01:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 06:01:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 06:01:55,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 06:01:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 06:01:55,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-13 06:01:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-13 06:01:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-13 06:01:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-13 06:01:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-13 06:01:55,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-13 06:01:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-13 06:01:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-13 06:01:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-13 06:01:55,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-13 06:01:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-13 06:01:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-13 06:01:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-13 06:01:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-13 06:01:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 06:01:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 06:01:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-13 06:01:55,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 06:01:55,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 06:01:55,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 06:01:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 06:01:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 06:01:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 06:01:55,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 06:01:55,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 06:01:56,154 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 06:01:56,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 06:01:56,947 INFO L? ?]: Removed 236 outVars from TransFormulas that were not future-live. [2024-10-13 06:01:56,947 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 06:01:56,999 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 06:01:57,000 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 06:01:57,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:01:57 BoogieIcfgContainer [2024-10-13 06:01:57,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 06:01:57,003 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 06:01:57,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 06:01:57,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 06:01:57,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:01:55" (1/3) ... [2024-10-13 06:01:57,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5b2736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:01:57, skipping insertion in model container [2024-10-13 06:01:57,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:01:55" (2/3) ... [2024-10-13 06:01:57,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5b2736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:01:57, skipping insertion in model container [2024-10-13 06:01:57,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:01:57" (3/3) ... [2024-10-13 06:01:57,012 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-80.i [2024-10-13 06:01:57,025 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 06:01:57,025 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 06:01:57,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 06:01:57,091 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;@56d3d94b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 06:01:57,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 06:01:57,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 128 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:57,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:01:57,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:57,112 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:57,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:57,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:57,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1939007180, now seen corresponding path program 1 times [2024-10-13 06:01:57,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:57,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699005269] [2024-10-13 06:01:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:57,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:57,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:57,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:57,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:57,668 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:57,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699005269] [2024-10-13 06:01:57,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699005269] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:57,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:57,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 06:01:57,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92859390] [2024-10-13 06:01:57,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:57,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 06:01:57,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 06:01:57,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:01:57,703 INFO L87 Difference]: Start difference. First operand has 147 states, 127 states have (on average 1.4803149606299213) internal successors, (188), 128 states have internal predecessors, (188), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:01:57,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:57,765 INFO L93 Difference]: Finished difference Result 291 states and 459 transitions. [2024-10-13 06:01:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 06:01:57,769 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-10-13 06:01:57,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:57,779 INFO L225 Difference]: With dead ends: 291 [2024-10-13 06:01:57,780 INFO L226 Difference]: Without dead ends: 145 [2024-10-13 06:01:57,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 06:01:57,789 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:57,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:57,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-10-13 06:01:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-10-13 06:01:57,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.4523809523809523) internal successors, (183), 126 states have internal predecessors, (183), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:57,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 217 transitions. [2024-10-13 06:01:57,848 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 217 transitions. Word has length 148 [2024-10-13 06:01:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:57,849 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 217 transitions. [2024-10-13 06:01:57,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:01:57,850 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 217 transitions. [2024-10-13 06:01:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:01:57,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:57,859 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:57,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 06:01:57,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:57,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:57,861 INFO L85 PathProgramCache]: Analyzing trace with hash -386682978, now seen corresponding path program 1 times [2024-10-13 06:01:57,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:57,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197072255] [2024-10-13 06:01:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:57,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:58,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:58,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197072255] [2024-10-13 06:01:58,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197072255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:58,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:58,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:01:58,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454671073] [2024-10-13 06:01:58,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:58,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:01:58,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:58,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:01:58,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:58,322 INFO L87 Difference]: Start difference. First operand 145 states and 217 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:01:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:58,391 INFO L93 Difference]: Finished difference Result 291 states and 436 transitions. [2024-10-13 06:01:58,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:01:58,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-10-13 06:01:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:58,396 INFO L225 Difference]: With dead ends: 291 [2024-10-13 06:01:58,396 INFO L226 Difference]: Without dead ends: 147 [2024-10-13 06:01:58,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:58,398 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:58,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 626 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:58,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-13 06:01:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-10-13 06:01:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 128 states have (on average 1.4453125) internal successors, (185), 128 states have internal predecessors, (185), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 219 transitions. [2024-10-13 06:01:58,414 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 219 transitions. Word has length 148 [2024-10-13 06:01:58,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:58,418 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 219 transitions. [2024-10-13 06:01:58,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:01:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 219 transitions. [2024-10-13 06:01:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-13 06:01:58,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:58,422 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:58,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 06:01:58,422 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:58,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1230757472, now seen corresponding path program 1 times [2024-10-13 06:01:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416250025] [2024-10-13 06:01:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:58,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:58,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:58,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416250025] [2024-10-13 06:01:58,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416250025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:58,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:58,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:01:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052062664] [2024-10-13 06:01:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:58,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:01:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:01:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:58,832 INFO L87 Difference]: Start difference. First operand 147 states and 219 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:58,892 INFO L93 Difference]: Finished difference Result 295 states and 440 transitions. [2024-10-13 06:01:58,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:01:58,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 148 [2024-10-13 06:01:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:58,902 INFO L225 Difference]: With dead ends: 295 [2024-10-13 06:01:58,902 INFO L226 Difference]: Without dead ends: 149 [2024-10-13 06:01:58,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:58,904 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 0 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:58,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 626 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:58,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-13 06:01:58,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-10-13 06:01:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 130 states have internal predecessors, (187), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:58,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 221 transitions. [2024-10-13 06:01:58,923 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 221 transitions. Word has length 148 [2024-10-13 06:01:58,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:58,924 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 221 transitions. [2024-10-13 06:01:58,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:58,924 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 221 transitions. [2024-10-13 06:01:58,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:01:58,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:58,931 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:58,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 06:01:58,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:58,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:58,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1042219781, now seen corresponding path program 1 times [2024-10-13 06:01:58,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:58,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7854831] [2024-10-13 06:01:58,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:58,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:59,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,176 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:59,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:59,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7854831] [2024-10-13 06:01:59,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7854831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:59,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:59,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:01:59,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529427694] [2024-10-13 06:01:59,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:59,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:01:59,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:59,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:01:59,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,181 INFO L87 Difference]: Start difference. First operand 149 states and 221 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:59,231 INFO L93 Difference]: Finished difference Result 300 states and 445 transitions. [2024-10-13 06:01:59,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:01:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:01:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:59,233 INFO L225 Difference]: With dead ends: 300 [2024-10-13 06:01:59,233 INFO L226 Difference]: Without dead ends: 152 [2024-10-13 06:01:59,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,235 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:59,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 623 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-13 06:01:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2024-10-13 06:01:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 132 states have (on average 1.4318181818181819) internal successors, (189), 132 states have internal predecessors, (189), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:59,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 223 transitions. [2024-10-13 06:01:59,279 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 223 transitions. Word has length 150 [2024-10-13 06:01:59,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:59,279 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 223 transitions. [2024-10-13 06:01:59,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 223 transitions. [2024-10-13 06:01:59,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:01:59,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:59,284 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:59,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 06:01:59,285 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:59,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:59,285 INFO L85 PathProgramCache]: Analyzing trace with hash 232873155, now seen corresponding path program 1 times [2024-10-13 06:01:59,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:59,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386592611] [2024-10-13 06:01:59,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:59,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:59,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386592611] [2024-10-13 06:01:59,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386592611] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:59,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:01:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947721355] [2024-10-13 06:01:59,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:59,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:01:59,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:59,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:01:59,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,519 INFO L87 Difference]: Start difference. First operand 151 states and 223 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:59,560 INFO L93 Difference]: Finished difference Result 304 states and 449 transitions. [2024-10-13 06:01:59,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:01:59,561 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:01:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:59,565 INFO L225 Difference]: With dead ends: 304 [2024-10-13 06:01:59,565 INFO L226 Difference]: Without dead ends: 154 [2024-10-13 06:01:59,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,568 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 1 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:59,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 624 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:59,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-13 06:01:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2024-10-13 06:01:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 134 states have (on average 1.4253731343283582) internal successors, (191), 134 states have internal predecessors, (191), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 225 transitions. [2024-10-13 06:01:59,577 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 225 transitions. Word has length 150 [2024-10-13 06:01:59,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:59,578 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 225 transitions. [2024-10-13 06:01:59,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 225 transitions. [2024-10-13 06:01:59,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:01:59,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:59,580 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:59,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 06:01:59,580 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:59,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:59,581 INFO L85 PathProgramCache]: Analyzing trace with hash 290131457, now seen corresponding path program 1 times [2024-10-13 06:01:59,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:59,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196767399] [2024-10-13 06:01:59,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:01:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:01:59,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:01:59,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:01:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:01:59,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:01:59,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:01:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:01:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:01:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:01:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:01:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:01:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:01:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:01:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:01:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:01:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:01:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:01:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:01:59,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:01:59,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196767399] [2024-10-13 06:01:59,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196767399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:01:59,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:01:59,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:01:59,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440861639] [2024-10-13 06:01:59,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:01:59,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:01:59,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:01:59,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:01:59,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,791 INFO L87 Difference]: Start difference. First operand 153 states and 225 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:01:59,835 INFO L93 Difference]: Finished difference Result 308 states and 453 transitions. [2024-10-13 06:01:59,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:01:59,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:01:59,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:01:59,838 INFO L225 Difference]: With dead ends: 308 [2024-10-13 06:01:59,838 INFO L226 Difference]: Without dead ends: 156 [2024-10-13 06:01:59,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:01:59,840 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 1 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:01:59,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 627 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:01:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-13 06:01:59,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 155. [2024-10-13 06:01:59,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 136 states have internal predecessors, (193), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:01:59,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 227 transitions. [2024-10-13 06:01:59,859 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 227 transitions. Word has length 150 [2024-10-13 06:01:59,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:01:59,861 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 227 transitions. [2024-10-13 06:01:59,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:01:59,861 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 227 transitions. [2024-10-13 06:01:59,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:01:59,863 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:01:59,863 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:01:59,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 06:01:59,864 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:01:59,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:01:59,867 INFO L85 PathProgramCache]: Analyzing trace with hash 290191039, now seen corresponding path program 1 times [2024-10-13 06:01:59,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:01:59,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922236078] [2024-10-13 06:01:59,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:01:59,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:01:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:00,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:00,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:00,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922236078] [2024-10-13 06:02:00,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922236078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:00,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:00,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 06:02:00,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885212708] [2024-10-13 06:02:00,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:00,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 06:02:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:00,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 06:02:00,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 06:02:00,325 INFO L87 Difference]: Start difference. First operand 155 states and 227 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:00,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:00,383 INFO L93 Difference]: Finished difference Result 313 states and 460 transitions. [2024-10-13 06:02:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 06:02:00,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:02:00,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:00,386 INFO L225 Difference]: With dead ends: 313 [2024-10-13 06:02:00,386 INFO L226 Difference]: Without dead ends: 159 [2024-10-13 06:02:00,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:02:00,387 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 2 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:00,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 625 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:02:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-13 06:02:00,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 158. [2024-10-13 06:02:00,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 139 states have (on average 1.4172661870503598) internal successors, (197), 139 states have internal predecessors, (197), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-13 06:02:00,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 231 transitions. [2024-10-13 06:02:00,396 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 231 transitions. Word has length 150 [2024-10-13 06:02:00,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:00,396 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 231 transitions. [2024-10-13 06:02:00,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 231 transitions. [2024-10-13 06:02:00,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:00,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:00,399 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:00,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 06:02:00,400 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:00,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:00,400 INFO L85 PathProgramCache]: Analyzing trace with hash 509045757, now seen corresponding path program 1 times [2024-10-13 06:02:00,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:00,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974352594] [2024-10-13 06:02:00,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:00,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:00,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:03,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:03,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:03,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974352594] [2024-10-13 06:02:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974352594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:03,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:03,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:02:03,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321952594] [2024-10-13 06:02:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:03,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:02:03,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:03,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:02:03,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:02:03,164 INFO L87 Difference]: Start difference. First operand 158 states and 231 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:03,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:03,670 INFO L93 Difference]: Finished difference Result 429 states and 626 transitions. [2024-10-13 06:02:03,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:02:03,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-10-13 06:02:03,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:03,673 INFO L225 Difference]: With dead ends: 429 [2024-10-13 06:02:03,673 INFO L226 Difference]: Without dead ends: 272 [2024-10-13 06:02:03,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:02:03,675 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 149 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:03,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 893 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:02:03,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-10-13 06:02:03,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 269. [2024-10-13 06:02:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 239 states have (on average 1.4184100418410042) internal successors, (339), 240 states have internal predecessors, (339), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:03,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 393 transitions. [2024-10-13 06:02:03,692 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 393 transitions. Word has length 150 [2024-10-13 06:02:03,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:03,692 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 393 transitions. [2024-10-13 06:02:03,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 393 transitions. [2024-10-13 06:02:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:03,695 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:03,695 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:03,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 06:02:03,696 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:03,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:03,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1079302145, now seen corresponding path program 1 times [2024-10-13 06:02:03,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:03,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948359847] [2024-10-13 06:02:03,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:03,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:03,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:06,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:06,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:06,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948359847] [2024-10-13 06:02:06,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948359847] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:06,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:06,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:02:06,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630907493] [2024-10-13 06:02:06,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:06,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:02:06,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:06,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:02:06,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:02:06,576 INFO L87 Difference]: Start difference. First operand 269 states and 393 transitions. Second operand has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:07,903 INFO L93 Difference]: Finished difference Result 937 states and 1352 transitions. [2024-10-13 06:02:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 06:02:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-10-13 06:02:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:07,911 INFO L225 Difference]: With dead ends: 937 [2024-10-13 06:02:07,912 INFO L226 Difference]: Without dead ends: 669 [2024-10-13 06:02:07,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-10-13 06:02:07,915 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 952 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:07,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1573 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-13 06:02:07,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-13 06:02:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 306. [2024-10-13 06:02:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 274 states have (on average 1.416058394160584) internal successors, (388), 275 states have internal predecessors, (388), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:07,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 442 transitions. [2024-10-13 06:02:07,949 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 442 transitions. Word has length 150 [2024-10-13 06:02:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:07,950 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 442 transitions. [2024-10-13 06:02:07,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.181818181818182) internal successors, (68), 12 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:07,950 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 442 transitions. [2024-10-13 06:02:07,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:07,952 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:07,952 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:07,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 06:02:07,953 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:07,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:07,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1526721409, now seen corresponding path program 1 times [2024-10-13 06:02:07,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:07,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871544306] [2024-10-13 06:02:07,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:07,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:08,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:08,451 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:08,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:08,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871544306] [2024-10-13 06:02:08,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871544306] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:08,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:08,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 06:02:08,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942660715] [2024-10-13 06:02:08,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:08,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 06:02:08,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:08,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 06:02:08,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 06:02:08,453 INFO L87 Difference]: Start difference. First operand 306 states and 442 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:08,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:08,746 INFO L93 Difference]: Finished difference Result 860 states and 1240 transitions. [2024-10-13 06:02:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 06:02:08,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:02:08,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:08,750 INFO L225 Difference]: With dead ends: 860 [2024-10-13 06:02:08,751 INFO L226 Difference]: Without dead ends: 555 [2024-10-13 06:02:08,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:02:08,752 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 176 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:08,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1157 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 06:02:08,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-13 06:02:08,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 315. [2024-10-13 06:02:08,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 283 states have (on average 1.4098939929328622) internal successors, (399), 284 states have internal predecessors, (399), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 453 transitions. [2024-10-13 06:02:08,776 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 453 transitions. Word has length 150 [2024-10-13 06:02:08,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:08,777 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 453 transitions. [2024-10-13 06:02:08,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:08,777 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 453 transitions. [2024-10-13 06:02:08,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:08,779 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:08,779 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:08,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 06:02:08,779 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:08,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:08,780 INFO L85 PathProgramCache]: Analyzing trace with hash 156177533, now seen corresponding path program 1 times [2024-10-13 06:02:08,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:08,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865251030] [2024-10-13 06:02:08,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:08,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:09,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:09,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:09,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865251030] [2024-10-13 06:02:09,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865251030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:09,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:09,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:02:09,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916862156] [2024-10-13 06:02:09,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:09,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:02:09,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:09,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:02:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:09,852 INFO L87 Difference]: Start difference. First operand 315 states and 453 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:10,678 INFO L93 Difference]: Finished difference Result 1177 states and 1689 transitions. [2024-10-13 06:02:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:02:10,679 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:02:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:10,684 INFO L225 Difference]: With dead ends: 1177 [2024-10-13 06:02:10,684 INFO L226 Difference]: Without dead ends: 863 [2024-10-13 06:02:10,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:02:10,686 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 916 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1557 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:10,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1557 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-13 06:02:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2024-10-13 06:02:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 327. [2024-10-13 06:02:10,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 295 states have (on average 1.4101694915254237) internal successors, (416), 296 states have internal predecessors, (416), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:10,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 470 transitions. [2024-10-13 06:02:10,719 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 470 transitions. Word has length 150 [2024-10-13 06:02:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:10,722 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 470 transitions. [2024-10-13 06:02:10,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 470 transitions. [2024-10-13 06:02:10,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:10,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:10,726 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:10,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 06:02:10,726 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:10,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:10,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1532766209, now seen corresponding path program 1 times [2024-10-13 06:02:10,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:10,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439589447] [2024-10-13 06:02:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:10,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:11,267 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:11,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:11,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439589447] [2024-10-13 06:02:11,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439589447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:11,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:11,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 06:02:11,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981255994] [2024-10-13 06:02:11,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:11,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 06:02:11,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:11,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 06:02:11,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-13 06:02:11,269 INFO L87 Difference]: Start difference. First operand 327 states and 470 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:11,669 INFO L93 Difference]: Finished difference Result 791 states and 1137 transitions. [2024-10-13 06:02:11,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 06:02:11,669 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:02:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:11,673 INFO L225 Difference]: With dead ends: 791 [2024-10-13 06:02:11,674 INFO L226 Difference]: Without dead ends: 465 [2024-10-13 06:02:11,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:02:11,676 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 181 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:11,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1888 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:02:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-10-13 06:02:11,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 334. [2024-10-13 06:02:11,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 302 states have (on average 1.4072847682119205) internal successors, (425), 303 states have internal predecessors, (425), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 479 transitions. [2024-10-13 06:02:11,707 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 479 transitions. Word has length 150 [2024-10-13 06:02:11,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:11,707 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 479 transitions. [2024-10-13 06:02:11,708 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, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:11,708 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 479 transitions. [2024-10-13 06:02:11,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:11,711 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:11,711 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:11,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 06:02:11,712 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:11,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:11,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1173853185, now seen corresponding path program 1 times [2024-10-13 06:02:11,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:11,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335519273] [2024-10-13 06:02:11,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:11,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:13,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:13,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:13,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335519273] [2024-10-13 06:02:13,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335519273] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:13,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:13,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:02:13,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782160801] [2024-10-13 06:02:13,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:13,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:02:13,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:13,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:02:13,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:02:13,053 INFO L87 Difference]: Start difference. First operand 334 states and 479 transitions. Second operand has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:14,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:14,329 INFO L93 Difference]: Finished difference Result 1090 states and 1560 transitions. [2024-10-13 06:02:14,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:02:14,330 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 150 [2024-10-13 06:02:14,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:14,335 INFO L225 Difference]: With dead ends: 1090 [2024-10-13 06:02:14,335 INFO L226 Difference]: Without dead ends: 757 [2024-10-13 06:02:14,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-10-13 06:02:14,337 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 685 mSDsluCounter, 3209 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 3644 SdHoareTripleChecker+Invalid, 1108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:14,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 3644 Invalid, 1108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 06:02:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-10-13 06:02:14,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 336. [2024-10-13 06:02:14,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 304 states have (on average 1.4078947368421053) internal successors, (428), 305 states have internal predecessors, (428), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 482 transitions. [2024-10-13 06:02:14,363 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 482 transitions. Word has length 150 [2024-10-13 06:02:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:14,363 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 482 transitions. [2024-10-13 06:02:14,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.666666666666667) internal successors, (68), 12 states have internal predecessors, (68), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 482 transitions. [2024-10-13 06:02:14,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-13 06:02:14,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:14,365 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:14,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 06:02:14,366 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:14,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:14,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1392707903, now seen corresponding path program 1 times [2024-10-13 06:02:14,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:14,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224000764] [2024-10-13 06:02:14,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:14,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:16,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:16,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:16,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:16,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:16,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224000764] [2024-10-13 06:02:16,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224000764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:16,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:02:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62692438] [2024-10-13 06:02:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:16,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:02:16,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:02:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:02:16,215 INFO L87 Difference]: Start difference. First operand 336 states and 482 transitions. Second operand has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:17,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:17,761 INFO L93 Difference]: Finished difference Result 1090 states and 1555 transitions. [2024-10-13 06:02:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 06:02:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-10-13 06:02:17,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:17,768 INFO L225 Difference]: With dead ends: 1090 [2024-10-13 06:02:17,768 INFO L226 Difference]: Without dead ends: 755 [2024-10-13 06:02:17,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-10-13 06:02:17,770 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 683 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:17,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 2914 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 971 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-13 06:02:17,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-10-13 06:02:17,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 338. [2024-10-13 06:02:17,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 306 states have (on average 1.4052287581699345) internal successors, (430), 307 states have internal predecessors, (430), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:17,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 484 transitions. [2024-10-13 06:02:17,797 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 484 transitions. Word has length 150 [2024-10-13 06:02:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:17,800 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 484 transitions. [2024-10-13 06:02:17,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 484 transitions. [2024-10-13 06:02:17,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-13 06:02:17,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:17,802 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:17,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 06:02:17,803 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:17,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:17,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1267828862, now seen corresponding path program 1 times [2024-10-13 06:02:17,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:17,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875188563] [2024-10-13 06:02:17,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:17,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:17,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:17,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:17,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:17,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:17,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:17,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875188563] [2024-10-13 06:02:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875188563] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:17,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 06:02:17,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078246740] [2024-10-13 06:02:17,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:17,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 06:02:17,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:17,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 06:02:17,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:02:17,943 INFO L87 Difference]: Start difference. First operand 338 states and 484 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:17,980 INFO L93 Difference]: Finished difference Result 677 states and 971 transitions. [2024-10-13 06:02:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 06:02:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 151 [2024-10-13 06:02:17,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:17,984 INFO L225 Difference]: With dead ends: 677 [2024-10-13 06:02:17,984 INFO L226 Difference]: Without dead ends: 340 [2024-10-13 06:02:17,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 06:02:17,987 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:17,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 419 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 06:02:17,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-13 06:02:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2024-10-13 06:02:18,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 308 states have (on average 1.4025974025974026) internal successors, (432), 309 states have internal predecessors, (432), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 486 transitions. [2024-10-13 06:02:18,008 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 486 transitions. Word has length 151 [2024-10-13 06:02:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:18,008 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 486 transitions. [2024-10-13 06:02:18,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 486 transitions. [2024-10-13 06:02:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-13 06:02:18,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:18,012 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:18,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 06:02:18,013 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:18,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:18,013 INFO L85 PathProgramCache]: Analyzing trace with hash 256711612, now seen corresponding path program 1 times [2024-10-13 06:02:18,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:18,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857498585] [2024-10-13 06:02:18,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:18,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:18,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:18,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:18,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:18,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857498585] [2024-10-13 06:02:18,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857498585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:18,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:18,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:02:18,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127337721] [2024-10-13 06:02:18,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:18,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:02:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:18,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:02:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:02:18,429 INFO L87 Difference]: Start difference. First operand 340 states and 486 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:18,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:18,633 INFO L93 Difference]: Finished difference Result 905 states and 1293 transitions. [2024-10-13 06:02:18,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:02:18,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 151 [2024-10-13 06:02:18,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:18,637 INFO L225 Difference]: With dead ends: 905 [2024-10-13 06:02:18,637 INFO L226 Difference]: Without dead ends: 566 [2024-10-13 06:02:18,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:18,639 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 171 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:18,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1306 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 06:02:18,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-10-13 06:02:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 378. [2024-10-13 06:02:18,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 346 states have (on average 1.3959537572254335) internal successors, (483), 347 states have internal predecessors, (483), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:18,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 537 transitions. [2024-10-13 06:02:18,667 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 537 transitions. Word has length 151 [2024-10-13 06:02:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:18,667 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 537 transitions. [2024-10-13 06:02:18,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:18,668 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 537 transitions. [2024-10-13 06:02:18,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:18,669 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:18,670 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:18,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 06:02:18,670 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:18,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:18,671 INFO L85 PathProgramCache]: Analyzing trace with hash 567399364, now seen corresponding path program 1 times [2024-10-13 06:02:18,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:18,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586971100] [2024-10-13 06:02:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:19,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:19,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:19,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:19,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586971100] [2024-10-13 06:02:19,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586971100] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:19,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:19,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:02:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891313067] [2024-10-13 06:02:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:19,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:02:19,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:19,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:02:19,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:02:19,389 INFO L87 Difference]: Start difference. First operand 378 states and 537 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:19,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:19,858 INFO L93 Difference]: Finished difference Result 1037 states and 1478 transitions. [2024-10-13 06:02:19,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:02:19,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-10-13 06:02:19,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:19,863 INFO L225 Difference]: With dead ends: 1037 [2024-10-13 06:02:19,863 INFO L226 Difference]: Without dead ends: 660 [2024-10-13 06:02:19,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:02:19,865 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 386 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:19,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1515 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:02:19,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-10-13 06:02:19,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 400. [2024-10-13 06:02:19,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 368 states have (on average 1.3994565217391304) internal successors, (515), 369 states have internal predecessors, (515), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 569 transitions. [2024-10-13 06:02:19,896 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 569 transitions. Word has length 152 [2024-10-13 06:02:19,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:19,898 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 569 transitions. [2024-10-13 06:02:19,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:19,898 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 569 transitions. [2024-10-13 06:02:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:19,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:19,901 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:19,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 06:02:19,901 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:19,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1802879042, now seen corresponding path program 1 times [2024-10-13 06:02:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:19,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145547904] [2024-10-13 06:02:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:20,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:20,815 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145547904] [2024-10-13 06:02:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145547904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:20,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:20,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:02:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303550529] [2024-10-13 06:02:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:20,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:02:20,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:02:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:20,820 INFO L87 Difference]: Start difference. First operand 400 states and 569 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:21,463 INFO L93 Difference]: Finished difference Result 1059 states and 1509 transitions. [2024-10-13 06:02:21,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 06:02:21,464 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-10-13 06:02:21,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:21,467 INFO L225 Difference]: With dead ends: 1059 [2024-10-13 06:02:21,467 INFO L226 Difference]: Without dead ends: 660 [2024-10-13 06:02:21,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-10-13 06:02:21,470 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 522 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:21,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1689 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:02:21,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-10-13 06:02:21,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 414. [2024-10-13 06:02:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 382 states have (on average 1.3979057591623036) internal successors, (534), 383 states have internal predecessors, (534), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:21,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 588 transitions. [2024-10-13 06:02:21,501 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 588 transitions. Word has length 152 [2024-10-13 06:02:21,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:21,501 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 588 transitions. [2024-10-13 06:02:21,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:21,502 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 588 transitions. [2024-10-13 06:02:21,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:21,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:21,505 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:21,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 06:02:21,506 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:21,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1474412602, now seen corresponding path program 1 times [2024-10-13 06:02:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:21,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768118035] [2024-10-13 06:02:21,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:21,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:23,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:23,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:23,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:23,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:23,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768118035] [2024-10-13 06:02:23,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768118035] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:23,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:23,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 06:02:23,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064269142] [2024-10-13 06:02:23,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:23,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 06:02:23,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:23,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 06:02:23,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-10-13 06:02:23,093 INFO L87 Difference]: Start difference. First operand 414 states and 588 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:24,431 INFO L93 Difference]: Finished difference Result 1114 states and 1585 transitions. [2024-10-13 06:02:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 06:02:24,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-10-13 06:02:24,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:24,436 INFO L225 Difference]: With dead ends: 1114 [2024-10-13 06:02:24,436 INFO L226 Difference]: Without dead ends: 701 [2024-10-13 06:02:24,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-10-13 06:02:24,438 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 546 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:24,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 2996 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-13 06:02:24,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2024-10-13 06:02:24,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 417. [2024-10-13 06:02:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 385 states have (on average 1.3974025974025974) internal successors, (538), 386 states have internal predecessors, (538), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:24,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 592 transitions. [2024-10-13 06:02:24,467 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 592 transitions. Word has length 152 [2024-10-13 06:02:24,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:24,468 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 592 transitions. [2024-10-13 06:02:24,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:24,468 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 592 transitions. [2024-10-13 06:02:24,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:24,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:24,471 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:24,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 06:02:24,472 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:24,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:24,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1953602758, now seen corresponding path program 1 times [2024-10-13 06:02:24,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:24,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715095209] [2024-10-13 06:02:24,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:27,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:27,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:27,445 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:27,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:27,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715095209] [2024-10-13 06:02:27,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715095209] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:27,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:27,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 06:02:27,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780838038] [2024-10-13 06:02:27,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:27,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-13 06:02:27,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:27,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-13 06:02:27,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:02:27,450 INFO L87 Difference]: Start difference. First operand 417 states and 592 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:29,149 INFO L93 Difference]: Finished difference Result 1171 states and 1659 transitions. [2024-10-13 06:02:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 06:02:29,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-10-13 06:02:29,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:29,154 INFO L225 Difference]: With dead ends: 1171 [2024-10-13 06:02:29,155 INFO L226 Difference]: Without dead ends: 755 [2024-10-13 06:02:29,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=96, Invalid=456, Unknown=0, NotChecked=0, Total=552 [2024-10-13 06:02:29,157 INFO L432 NwaCegarLoop]: 376 mSDtfsCounter, 596 mSDsluCounter, 2802 mSDsCounter, 0 mSdLazyCounter, 1036 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:29,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 3178 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-13 06:02:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-10-13 06:02:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 419. [2024-10-13 06:02:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 387 states have (on average 1.3953488372093024) internal successors, (540), 388 states have internal predecessors, (540), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:29,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 594 transitions. [2024-10-13 06:02:29,191 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 594 transitions. Word has length 152 [2024-10-13 06:02:29,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:29,192 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 594 transitions. [2024-10-13 06:02:29,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:29,192 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 594 transitions. [2024-10-13 06:02:29,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:29,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:29,194 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:29,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 06:02:29,195 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:29,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1105884860, now seen corresponding path program 1 times [2024-10-13 06:02:29,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:29,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690270950] [2024-10-13 06:02:29,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:29,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:29,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:29,638 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:29,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:29,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690270950] [2024-10-13 06:02:29,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690270950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:29,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:29,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 06:02:29,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67586078] [2024-10-13 06:02:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:29,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 06:02:29,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 06:02:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:02:29,641 INFO L87 Difference]: Start difference. First operand 419 states and 594 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:29,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:29,996 INFO L93 Difference]: Finished difference Result 979 states and 1387 transitions. [2024-10-13 06:02:29,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 06:02:29,996 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-10-13 06:02:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:30,000 INFO L225 Difference]: With dead ends: 979 [2024-10-13 06:02:30,000 INFO L226 Difference]: Without dead ends: 561 [2024-10-13 06:02:30,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:30,002 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 173 mSDsluCounter, 1391 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:30,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1738 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:02:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2024-10-13 06:02:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 419. [2024-10-13 06:02:30,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 387 states have (on average 1.392764857881137) internal successors, (539), 388 states have internal predecessors, (539), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-13 06:02:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 593 transitions. [2024-10-13 06:02:30,043 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 593 transitions. Word has length 152 [2024-10-13 06:02:30,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:30,044 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 593 transitions. [2024-10-13 06:02:30,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:30,044 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 593 transitions. [2024-10-13 06:02:30,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:30,046 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:30,046 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:30,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 06:02:30,047 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:30,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash -88209208, now seen corresponding path program 1 times [2024-10-13 06:02:30,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:30,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028678946] [2024-10-13 06:02:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:30,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:32,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:32,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028678946] [2024-10-13 06:02:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028678946] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:32,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:32,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 06:02:32,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297455461] [2024-10-13 06:02:32,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:32,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 06:02:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:32,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 06:02:32,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-13 06:02:32,424 INFO L87 Difference]: Start difference. First operand 419 states and 593 transitions. Second operand has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:02:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:34,915 INFO L93 Difference]: Finished difference Result 1128 states and 1592 transitions. [2024-10-13 06:02:34,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:02:34,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-10-13 06:02:34,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:34,923 INFO L225 Difference]: With dead ends: 1128 [2024-10-13 06:02:34,923 INFO L226 Difference]: Without dead ends: 710 [2024-10-13 06:02:34,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2024-10-13 06:02:34,926 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 377 mSDsluCounter, 2289 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 379 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:34,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [379 Valid, 2619 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-13 06:02:34,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-10-13 06:02:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 568. [2024-10-13 06:02:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 516 states have (on average 1.3837209302325582) internal successors, (714), 518 states have internal predecessors, (714), 44 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-13 06:02:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 802 transitions. [2024-10-13 06:02:34,980 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 802 transitions. Word has length 152 [2024-10-13 06:02:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:34,980 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 802 transitions. [2024-10-13 06:02:34,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.777777777777778) internal successors, (70), 11 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:02:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 802 transitions. [2024-10-13 06:02:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:34,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:34,983 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:34,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 06:02:34,983 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:34,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:34,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1819589252, now seen corresponding path program 1 times [2024-10-13 06:02:34,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:34,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620880291] [2024-10-13 06:02:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:34,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:35,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:35,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620880291] [2024-10-13 06:02:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620880291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:35,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:35,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 06:02:35,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116116281] [2024-10-13 06:02:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:35,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 06:02:35,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 06:02:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 06:02:35,384 INFO L87 Difference]: Start difference. First operand 568 states and 802 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:35,784 INFO L93 Difference]: Finished difference Result 1140 states and 1608 transitions. [2024-10-13 06:02:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 06:02:35,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-10-13 06:02:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:35,788 INFO L225 Difference]: With dead ends: 1140 [2024-10-13 06:02:35,788 INFO L226 Difference]: Without dead ends: 573 [2024-10-13 06:02:35,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 06:02:35,790 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 176 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:35,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 985 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 06:02:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-10-13 06:02:35,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 566. [2024-10-13 06:02:35,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 514 states have (on average 1.3793774319066148) internal successors, (709), 516 states have internal predecessors, (709), 44 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-13 06:02:35,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 797 transitions. [2024-10-13 06:02:35,849 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 797 transitions. Word has length 152 [2024-10-13 06:02:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:35,850 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 797 transitions. [2024-10-13 06:02:35,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 797 transitions. [2024-10-13 06:02:35,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:35,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:35,852 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:35,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 06:02:35,852 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:35,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:35,853 INFO L85 PathProgramCache]: Analyzing trace with hash 130645510, now seen corresponding path program 1 times [2024-10-13 06:02:35,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:35,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474976076] [2024-10-13 06:02:35,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:35,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:37,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:37,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:37,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:37,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474976076] [2024-10-13 06:02:37,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474976076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:37,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:37,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-13 06:02:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621743475] [2024-10-13 06:02:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:37,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:02:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:37,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:02:37,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:02:37,364 INFO L87 Difference]: Start difference. First operand 566 states and 797 transitions. Second operand has 10 states, 8 states have (on average 8.75) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:02:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:38,104 INFO L93 Difference]: Finished difference Result 1257 states and 1765 transitions. [2024-10-13 06:02:38,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 06:02:38,105 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.75) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-10-13 06:02:38,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:38,111 INFO L225 Difference]: With dead ends: 1257 [2024-10-13 06:02:38,112 INFO L226 Difference]: Without dead ends: 692 [2024-10-13 06:02:38,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-10-13 06:02:38,114 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 142 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:38,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1522 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:02:38,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-10-13 06:02:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 566. [2024-10-13 06:02:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 514 states have (on average 1.3793774319066148) internal successors, (709), 516 states have internal predecessors, (709), 44 states have call successors, (44), 7 states have call predecessors, (44), 7 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-13 06:02:38,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 797 transitions. [2024-10-13 06:02:38,189 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 797 transitions. Word has length 152 [2024-10-13 06:02:38,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:38,189 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 797 transitions. [2024-10-13 06:02:38,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.75) internal successors, (70), 10 states have internal predecessors, (70), 3 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 3 states have call successors, (17) [2024-10-13 06:02:38,189 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 797 transitions. [2024-10-13 06:02:38,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:38,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:38,191 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:38,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 06:02:38,191 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:38,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash -927856358, now seen corresponding path program 1 times [2024-10-13 06:02:38,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:38,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390273928] [2024-10-13 06:02:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:38,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:39,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:39,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:40,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:40,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 60 proven. 30 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-10-13 06:02:40,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:40,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390273928] [2024-10-13 06:02:40,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390273928] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:02:40,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522276215] [2024-10-13 06:02:40,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:40,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:02:40,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:02:40,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:02:40,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 06:02:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:40,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-13 06:02:40,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:02:40,545 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 19 treesize of output 19 [2024-10-13 06:02:40,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:02:40,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 29 [2024-10-13 06:02:40,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2024-10-13 06:02:40,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:02:40,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 15 [2024-10-13 06:02:40,813 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 [2024-10-13 06:02:40,862 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 232 proven. 12 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-13 06:02:40,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:02:41,597 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 69 treesize of output 45 [2024-10-13 06:02:41,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522276215] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:02:41,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:02:41,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11] total 25 [2024-10-13 06:02:41,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213957291] [2024-10-13 06:02:41,725 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-13 06:02:41,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-13 06:02:41,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:41,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-13 06:02:41,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=819, Unknown=0, NotChecked=0, Total=930 [2024-10-13 06:02:41,727 INFO L87 Difference]: Start difference. First operand 566 states and 797 transitions. Second operand has 25 states, 21 states have (on average 4.761904761904762) internal successors, (100), 25 states have internal predecessors, (100), 9 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 5 states have call predecessors, (26), 9 states have call successors, (26) [2024-10-13 06:02:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:44,780 INFO L93 Difference]: Finished difference Result 1322 states and 1831 transitions. [2024-10-13 06:02:44,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-10-13 06:02:44,781 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 4.761904761904762) internal successors, (100), 25 states have internal predecessors, (100), 9 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 5 states have call predecessors, (26), 9 states have call successors, (26) Word has length 152 [2024-10-13 06:02:44,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:44,786 INFO L225 Difference]: With dead ends: 1322 [2024-10-13 06:02:44,786 INFO L226 Difference]: Without dead ends: 737 [2024-10-13 06:02:44,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1662 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=868, Invalid=5612, Unknown=0, NotChecked=0, Total=6480 [2024-10-13 06:02:44,791 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1721 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:44,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 3324 Invalid, 2012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1827 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-13 06:02:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2024-10-13 06:02:44,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 543. [2024-10-13 06:02:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 487 states have (on average 1.3675564681724846) internal successors, (666), 489 states have internal predecessors, (666), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-13 06:02:44,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 748 transitions. [2024-10-13 06:02:44,885 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 748 transitions. Word has length 152 [2024-10-13 06:02:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:44,885 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 748 transitions. [2024-10-13 06:02:44,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 4.761904761904762) internal successors, (100), 25 states have internal predecessors, (100), 9 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (26), 5 states have call predecessors, (26), 9 states have call successors, (26) [2024-10-13 06:02:44,885 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 748 transitions. [2024-10-13 06:02:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:44,890 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:44,890 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:44,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 06:02:45,090 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,SelfDestructingSolverStorable24 [2024-10-13 06:02:45,091 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:45,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:45,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1740206810, now seen corresponding path program 1 times [2024-10-13 06:02:45,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:45,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904693132] [2024-10-13 06:02:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:45,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:45,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:47,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 84 proven. 6 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2024-10-13 06:02:47,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:47,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904693132] [2024-10-13 06:02:47,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904693132] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 06:02:47,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569909854] [2024-10-13 06:02:47,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:47,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 06:02:47,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 06:02:47,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 06:02:47,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 06:02:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:48,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-10-13 06:02:48,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 06:02:48,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-13 06:02:48,227 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 29 treesize of output 13 [2024-10-13 06:02:48,382 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 17 treesize of output 13 [2024-10-13 06:02:48,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-13 06:02:48,693 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 160 treesize of output 122 [2024-10-13 06:02:48,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:02:48,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 122 [2024-10-13 06:02:48,833 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 34 treesize of output 22 [2024-10-13 06:02:48,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 49 [2024-10-13 06:02:49,075 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 06:02:49,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 33 [2024-10-13 06:02:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 207 proven. 6 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-10-13 06:02:49,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 06:02:49,744 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:49,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569909854] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-13 06:02:49,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-13 06:02:49,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [24, 22] total 46 [2024-10-13 06:02:49,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715422032] [2024-10-13 06:02:49,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:49,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 06:02:49,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:49,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 06:02:49,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1868, Unknown=0, NotChecked=0, Total=2070 [2024-10-13 06:02:49,747 INFO L87 Difference]: Start difference. First operand 543 states and 748 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:50,546 INFO L93 Difference]: Finished difference Result 1510 states and 2071 transitions. [2024-10-13 06:02:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 06:02:50,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 152 [2024-10-13 06:02:50,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:50,551 INFO L225 Difference]: With dead ends: 1510 [2024-10-13 06:02:50,551 INFO L226 Difference]: Without dead ends: 968 [2024-10-13 06:02:50,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 316 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=254, Invalid=2502, Unknown=0, NotChecked=0, Total=2756 [2024-10-13 06:02:50,554 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 576 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:50,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 2407 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 06:02:50,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-10-13 06:02:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 574. [2024-10-13 06:02:50,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 518 states have (on average 1.359073359073359) internal successors, (704), 520 states have internal predecessors, (704), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-13 06:02:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 786 transitions. [2024-10-13 06:02:50,628 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 786 transitions. Word has length 152 [2024-10-13 06:02:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:50,628 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 786 transitions. [2024-10-13 06:02:50,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-10-13 06:02:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 786 transitions. [2024-10-13 06:02:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:50,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:50,630 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:50,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 06:02:50,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-13 06:02:50,834 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:50,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash 460343132, now seen corresponding path program 1 times [2024-10-13 06:02:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:50,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160289397] [2024-10-13 06:02:50,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:50,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:51,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:51,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:51,463 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:51,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:51,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160289397] [2024-10-13 06:02:51,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160289397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:51,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:51,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:02:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008566455] [2024-10-13 06:02:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:51,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:02:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:02:51,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:51,465 INFO L87 Difference]: Start difference. First operand 574 states and 786 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:52,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 06:02:52,099 INFO L93 Difference]: Finished difference Result 1503 states and 2049 transitions. [2024-10-13 06:02:52,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 06:02:52,099 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-10-13 06:02:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 06:02:52,103 INFO L225 Difference]: With dead ends: 1503 [2024-10-13 06:02:52,104 INFO L226 Difference]: Without dead ends: 930 [2024-10-13 06:02:52,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-13 06:02:52,105 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 440 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 2159 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-13 06:02:52,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 2159 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-13 06:02:52,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2024-10-13 06:02:52,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 581. [2024-10-13 06:02:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 525 states have (on average 1.3523809523809525) internal successors, (710), 527 states have internal predecessors, (710), 41 states have call successors, (41), 14 states have call predecessors, (41), 14 states have return successors, (41), 39 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-13 06:02:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 792 transitions. [2024-10-13 06:02:52,190 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 792 transitions. Word has length 152 [2024-10-13 06:02:52,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 06:02:52,190 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 792 transitions. [2024-10-13 06:02:52,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-10-13 06:02:52,191 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 792 transitions. [2024-10-13 06:02:52,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-13 06:02:52,192 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 06:02:52,192 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 06:02:52,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-13 06:02:52,193 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 06:02:52,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 06:02:52,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1959061528, now seen corresponding path program 1 times [2024-10-13 06:02:52,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 06:02:52,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007360641] [2024-10-13 06:02:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 06:02:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 06:02:52,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 06:02:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 06:02:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-13 06:02:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-13 06:02:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-13 06:02:52,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-13 06:02:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 06:02:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-13 06:02:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-13 06:02:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 06:02:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 06:02:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 06:02:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-13 06:02:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-13 06:02:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-13 06:02:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-13 06:02:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-13 06:02:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 06:02:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-10-13 06:02:52,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 06:02:52,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007360641] [2024-10-13 06:02:52,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007360641] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 06:02:52,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 06:02:52,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-13 06:02:52,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496116862] [2024-10-13 06:02:52,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 06:02:52,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 06:02:52,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 06:02:52,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 06:02:52,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-13 06:02:52,885 INFO L87 Difference]: Start difference. First operand 581 states and 792 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17)