./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-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b5fc557e9eca50427a2e44f543168d77b97544575eea34c071efc5d55e33518 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 08:26:19,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 08:26:19,885 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 08:26:19,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 08:26:19,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 08:26:19,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 08:26:19,926 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 08:26:19,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 08:26:19,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 08:26:19,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 08:26:19,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 08:26:19,928 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 08:26:19,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 08:26:19,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 08:26:19,934 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 08:26:19,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 08:26:19,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 08:26:19,935 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 08:26:19,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 08:26:19,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 08:26:19,936 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 08:26:19,938 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 08:26:19,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 08:26:19,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 08:26:19,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 08:26:19,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 08:26:19,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 08:26:19,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 08:26:19,940 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 08:26:19,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 08:26:19,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 08:26:19,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 08:26:19,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:26:19,942 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 08:26:19,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 08:26:19,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 08:26:19,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 08:26:19,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 08:26:19,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 08:26:19,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 08:26:19,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 08:26:19,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 08:26:19,945 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5fc557e9eca50427a2e44f543168d77b97544575eea34c071efc5d55e33518 [2024-11-20 08:26:20,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 08:26:20,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 08:26:20,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 08:26:20,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 08:26:20,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 08:26:20,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-20 08:26:21,717 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 08:26:21,942 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 08:26:21,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-20 08:26:21,952 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30cfefd9d/24cb2a3f1be6472f8efa1ced64b16612/FLAG718374364 [2024-11-20 08:26:21,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30cfefd9d/24cb2a3f1be6472f8efa1ced64b16612 [2024-11-20 08:26:21,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 08:26:21,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 08:26:21,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 08:26:21,971 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 08:26:21,978 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 08:26:21,979 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:26:21" (1/1) ... [2024-11-20 08:26:21,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572524cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:21, skipping insertion in model container [2024-11-20 08:26:21,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 08:26:21" (1/1) ... [2024-11-20 08:26:22,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 08:26:22,237 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i[916,929] [2024-11-20 08:26:22,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:26:22,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 08:26:22,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i[916,929] [2024-11-20 08:26:22,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 08:26:22,404 INFO L204 MainTranslator]: Completed translation [2024-11-20 08:26:22,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22 WrapperNode [2024-11-20 08:26:22,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 08:26:22,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 08:26:22,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 08:26:22,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 08:26:22,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,483 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 491 [2024-11-20 08:26:22,484 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 08:26:22,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 08:26:22,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 08:26:22,485 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 08:26:22,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,525 INFO L175 MemorySlicer]: Split 133 memory accesses to 5 slices as follows [2, 45, 20, 39, 27]. 34 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 6, 2, 5, 2]. The 18 writes are split as follows [0, 9, 2, 5, 2]. [2024-11-20 08:26:22,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,526 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 08:26:22,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 08:26:22,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 08:26:22,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 08:26:22,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (1/1) ... [2024-11-20 08:26:22,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 08:26:22,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 08:26:22,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 08:26:22,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 08:26:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 08:26:22,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-20 08:26:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-20 08:26:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-20 08:26:22,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-20 08:26:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-20 08:26:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 08:26:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 08:26:22,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 08:26:22,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 08:26:22,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-20 08:26:22,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 08:26:22,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 08:26:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 08:26:22,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 08:26:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-20 08:26:22,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 08:26:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 08:26:22,819 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 08:26:22,821 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 08:26:23,337 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-20 08:26:23,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 08:26:23,354 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 08:26:23,354 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 08:26:23,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:26:23 BoogieIcfgContainer [2024-11-20 08:26:23,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 08:26:23,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 08:26:23,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 08:26:23,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 08:26:23,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 08:26:21" (1/3) ... [2024-11-20 08:26:23,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371cc5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:26:23, skipping insertion in model container [2024-11-20 08:26:23,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 08:26:22" (2/3) ... [2024-11-20 08:26:23,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371cc5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 08:26:23, skipping insertion in model container [2024-11-20 08:26:23,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 08:26:23" (3/3) ... [2024-11-20 08:26:23,364 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-53.i [2024-11-20 08:26:23,379 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 08:26:23,379 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 08:26:23,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 08:26:23,446 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;@3e47b4df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 08:26:23,447 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 08:26:23,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:26:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:26:23,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:26:23,467 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:26:23,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:26:23,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:26:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1255670194, now seen corresponding path program 1 times [2024-11-20 08:26:23,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:26:23,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786833469] [2024-11-20 08:26:23,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:26:23,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:26:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:26:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:26:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:26:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:26:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:26:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:26:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 08:26:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:26:23,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:26:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:26:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:26:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:26:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:26:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:26:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:26:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:26:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:26:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:26:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:26:23,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:26:23,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786833469] [2024-11-20 08:26:23,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786833469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:26:23,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:26:23,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 08:26:23,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043709346] [2024-11-20 08:26:23,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:26:24,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 08:26:24,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:26:24,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 08:26:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:26:24,028 INFO L87 Difference]: Start difference. First operand has 112 states, 91 states have (on average 1.4065934065934067) internal successors, (128), 92 states have internal predecessors, (128), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:26:24,058 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-20 08:26:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 08:26:24,061 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-20 08:26:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:26:24,071 INFO L225 Difference]: With dead ends: 217 [2024-11-20 08:26:24,072 INFO L226 Difference]: Without dead ends: 108 [2024-11-20 08:26:24,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 08:26:24,082 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:26:24,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:26:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-20 08:26:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-20 08:26:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 88 states have internal predecessors, (119), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:26:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-20 08:26:24,133 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-20 08:26:24,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:26:24,133 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-20 08:26:24,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-20 08:26:24,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:26:24,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:26:24,139 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:26:24,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 08:26:24,140 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:26:24,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:26:24,141 INFO L85 PathProgramCache]: Analyzing trace with hash -674029138, now seen corresponding path program 1 times [2024-11-20 08:26:24,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:26:24,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115188074] [2024-11-20 08:26:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:26:24,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:26:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:26:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:26:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:26:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:26:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:26:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:26:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 08:26:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:26:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:26:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:26:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:26:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:26:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:26:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:26:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:26:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:26:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:26:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:26:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:26:24,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:26:24,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115188074] [2024-11-20 08:26:24,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115188074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:26:24,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:26:24,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 08:26:24,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917156901] [2024-11-20 08:26:24,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:26:24,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 08:26:24,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:26:24,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 08:26:24,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:26:24,845 INFO L87 Difference]: Start difference. First operand 108 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:26:24,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:26:24,910 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-20 08:26:24,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 08:26:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-20 08:26:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:26:24,913 INFO L225 Difference]: With dead ends: 213 [2024-11-20 08:26:24,913 INFO L226 Difference]: Without dead ends: 108 [2024-11-20 08:26:24,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 08:26:24,916 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 08:26:24,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 289 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 08:26:24,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-20 08:26:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-20 08:26:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 88 states have internal predecessors, (118), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:26:24,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-20 08:26:24,932 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-20 08:26:24,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:26:24,933 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-20 08:26:24,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-20 08:26:24,934 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-20 08:26:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:26:24,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:26:24,937 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:26:24,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 08:26:24,937 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:26:24,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:26:24,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1695097492, now seen corresponding path program 1 times [2024-11-20 08:26:24,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:26:24,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834045031] [2024-11-20 08:26:24,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:26:24,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:26:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:26:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:26:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:26:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:26:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:26:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:26:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 08:26:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:26:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:26:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:26:26,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:26:26,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:26:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:26:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:26:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:26:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:26:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:26:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:26:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:26,596 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:26:26,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:26:26,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834045031] [2024-11-20 08:26:26,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834045031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:26:26,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:26:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 08:26:26,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226403619] [2024-11-20 08:26:26,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:26:26,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 08:26:26,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:26:26,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 08:26:26,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 08:26:26,602 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:26,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:26:26,814 INFO L93 Difference]: Finished difference Result 215 states and 308 transitions. [2024-11-20 08:26:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 08:26:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-20 08:26:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:26:26,817 INFO L225 Difference]: With dead ends: 215 [2024-11-20 08:26:26,817 INFO L226 Difference]: Without dead ends: 110 [2024-11-20 08:26:26,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:26:26,823 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 68 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 08:26:26,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 572 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 08:26:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-20 08:26:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-20 08:26:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 90 states have internal predecessors, (120), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-20 08:26:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-20 08:26:26,846 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 140 [2024-11-20 08:26:26,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:26:26,846 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-20 08:26:26,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:26,847 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-20 08:26:26,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 08:26:26,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:26:26,852 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:26:26,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 08:26:26,853 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:26:26,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:26:26,853 INFO L85 PathProgramCache]: Analyzing trace with hash -994032914, now seen corresponding path program 1 times [2024-11-20 08:26:26,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:26:26,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903462406] [2024-11-20 08:26:26,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:26:26,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:26:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 08:26:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-20 08:26:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-20 08:26:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-20 08:26:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-20 08:26:28,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-20 08:26:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-20 08:26:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-20 08:26:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-20 08:26:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 08:26:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 08:26:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 08:26:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-20 08:26:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 08:26:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-20 08:26:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 08:26:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-20 08:26:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-20 08:26:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 08:26:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-20 08:26:28,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 08:26:28,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903462406] [2024-11-20 08:26:28,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903462406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 08:26:28,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 08:26:28,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 08:26:28,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544700457] [2024-11-20 08:26:28,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 08:26:28,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 08:26:28,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 08:26:28,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 08:26:28,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 08:26:28,388 INFO L87 Difference]: Start difference. First operand 110 states and 156 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 08:26:28,939 INFO L93 Difference]: Finished difference Result 362 states and 516 transitions. [2024-11-20 08:26:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 08:26:28,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 140 [2024-11-20 08:26:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 08:26:28,943 INFO L225 Difference]: With dead ends: 362 [2024-11-20 08:26:28,943 INFO L226 Difference]: Without dead ends: 255 [2024-11-20 08:26:28,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 08:26:28,950 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 148 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 08:26:28,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 991 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 08:26:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-20 08:26:28,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 250. [2024-11-20 08:26:28,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 198 states have (on average 1.3232323232323233) internal successors, (262), 199 states have internal predecessors, (262), 48 states have call successors, (48), 3 states have call predecessors, (48), 3 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 08:26:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 358 transitions. [2024-11-20 08:26:28,992 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 358 transitions. Word has length 140 [2024-11-20 08:26:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 08:26:28,992 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 358 transitions. [2024-11-20 08:26:28,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-20 08:26:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 358 transitions. [2024-11-20 08:26:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-20 08:26:28,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 08:26:28,995 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 08:26:28,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 08:26:28,996 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 08:26:28,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 08:26:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash 847661109, now seen corresponding path program 1 times [2024-11-20 08:26:28,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 08:26:28,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534459945] [2024-11-20 08:26:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 08:26:28,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 08:26:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat