./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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-?-c7c6ca5-m [2024-11-09 01:32:14,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:32:14,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 01:32:14,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:32:14,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:32:15,020 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:32:15,020 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:32:15,021 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:32:15,021 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 01:32:15,022 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 01:32:15,022 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:32:15,022 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:32:15,023 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 01:32:15,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 01:32:15,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 01:32:15,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:32:15,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:32:15,028 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:32:15,028 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:32:15,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:32:15,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:32:15,030 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:32:15,030 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:32:15,030 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:32:15,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:32:15,031 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:32:15,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:32:15,031 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:32:15,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:32:15,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:32:15,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:32:15,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:32:15,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 01:32:15,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:32:15,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:32:15,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:32:15,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 01:32:15,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:32:15,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:32:15,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 01:32:15,035 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 01:32:15,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:32:15,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5fc557e9eca50427a2e44f543168d77b97544575eea34c071efc5d55e33518 [2024-11-09 01:32:15,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:32:15,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:32:15,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:32:15,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:32:15,309 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:32:15,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-09 01:32:16,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:32:16,996 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:32:16,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-53.i [2024-11-09 01:32:17,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02639d0fe/4490036e985c404f8051e7d6a53178f0/FLAG63154cee1 [2024-11-09 01:32:17,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02639d0fe/4490036e985c404f8051e7d6a53178f0 [2024-11-09 01:32:17,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:32:17,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:32:17,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:32:17,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:32:17,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:32:17,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdf2212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17, skipping insertion in model container [2024-11-09 01:32:17,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,078 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:32:17,360 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] [2024-11-09 01:32:17,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:32:17,431 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:32:17,443 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] [2024-11-09 01:32:17,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:32:17,507 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:32:17,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17 WrapperNode [2024-11-09 01:32:17,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:32:17,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:32:17,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:32:17,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:32:17,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,591 INFO L138 Inliner]: procedures = 29, calls = 166, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 491 [2024-11-09 01:32:17,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:32:17,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:32:17,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:32:17,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:32:17,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,614 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,653 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]. [2024-11-09 01:32:17,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:32:17,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:32:17,701 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:32:17,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:32:17,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (1/1) ... [2024-11-09 01:32:17,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 01:32:17,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 01:32:17,736 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) [2024-11-09 01:32:17,743 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 [2024-11-09 01:32:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-09 01:32:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 01:32:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 01:32:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 01:32:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 01:32:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 01:32:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 01:32:17,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 01:32:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 01:32:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 01:32:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 01:32:17,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-09 01:32:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-09 01:32:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-11-09 01:32:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-11-09 01:32:17,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-11-09 01:32:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:32:17,793 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:32:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 01:32:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 01:32:17,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 01:32:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 01:32:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 01:32:17,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:32:17,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:32:17,940 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:32:17,944 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:32:18,473 INFO L? ?]: Removed 117 outVars from TransFormulas that were not future-live. [2024-11-09 01:32:18,473 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:32:18,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:32:18,494 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:32:18,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:32:18 BoogieIcfgContainer [2024-11-09 01:32:18,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:32:18,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:32:18,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:32:18,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:32:18,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:32:17" (1/3) ... [2024-11-09 01:32:18,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f0d7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:32:18, skipping insertion in model container [2024-11-09 01:32:18,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:32:17" (2/3) ... [2024-11-09 01:32:18,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f0d7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:32:18, skipping insertion in model container [2024-11-09 01:32:18,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:32:18" (3/3) ... [2024-11-09 01:32:18,503 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-53.i [2024-11-09 01:32:18,517 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:32:18,517 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:32:18,571 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:32:18,578 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;@4f1fc9d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:32:18,578 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:32:18,583 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) [2024-11-09 01:32:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 01:32:18,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:18,597 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] [2024-11-09 01:32:18,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:18,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1255670194, now seen corresponding path program 1 times [2024-11-09 01:32:18,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 01:32:18,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500533255] [2024-11-09 01:32:18,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:18,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 01:32:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 01:32:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 01:32:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 01:32:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 01:32:19,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 01:32:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 01:32:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 01:32:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 01:32:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 01:32:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 01:32:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 01:32:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 01:32:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 01:32:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 01:32:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 01:32:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 01:32:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 01:32:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:32:19,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 01:32:19,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500533255] [2024-11-09 01:32:19,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500533255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:19,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:19,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:32:19,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393869673] [2024-11-09 01:32:19,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:19,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:32:19,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 01:32:19,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:32:19,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:32:19,214 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) [2024-11-09 01:32:19,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:19,255 INFO L93 Difference]: Finished difference Result 217 states and 340 transitions. [2024-11-09 01:32:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:32:19,257 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 [2024-11-09 01:32:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:19,267 INFO L225 Difference]: With dead ends: 217 [2024-11-09 01:32:19,268 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 01:32:19,272 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 [2024-11-09 01:32:19,275 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 [2024-11-09 01:32:19,278 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] [2024-11-09 01:32:19,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 01:32:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-09 01:32:19,334 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) [2024-11-09 01:32:19,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 155 transitions. [2024-11-09 01:32:19,341 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 155 transitions. Word has length 140 [2024-11-09 01:32:19,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:19,341 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 155 transitions. [2024-11-09 01:32:19,342 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) [2024-11-09 01:32:19,342 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 155 transitions. [2024-11-09 01:32:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 01:32:19,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:19,346 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] [2024-11-09 01:32:19,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:32:19,346 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:19,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -674029138, now seen corresponding path program 1 times [2024-11-09 01:32:19,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 01:32:19,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148264921] [2024-11-09 01:32:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:19,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 01:32:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 01:32:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 01:32:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 01:32:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 01:32:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 01:32:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 01:32:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 01:32:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 01:32:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 01:32:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 01:32:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 01:32:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 01:32:20,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 01:32:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 01:32:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 01:32:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 01:32:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 01:32:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:32:20,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 01:32:20,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148264921] [2024-11-09 01:32:20,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148264921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:20,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:20,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:32:20,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997607627] [2024-11-09 01:32:20,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:20,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:32:20,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 01:32:20,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:32:20,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:32:20,144 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) [2024-11-09 01:32:20,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:20,208 INFO L93 Difference]: Finished difference Result 213 states and 307 transitions. [2024-11-09 01:32:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:32:20,209 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 [2024-11-09 01:32:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:20,210 INFO L225 Difference]: With dead ends: 213 [2024-11-09 01:32:20,211 INFO L226 Difference]: Without dead ends: 108 [2024-11-09 01:32:20,211 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 [2024-11-09 01:32:20,212 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 [2024-11-09 01:32:20,213 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] [2024-11-09 01:32:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-09 01:32:20,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-09 01:32:20,221 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) [2024-11-09 01:32:20,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2024-11-09 01:32:20,223 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 140 [2024-11-09 01:32:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:20,224 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2024-11-09 01:32:20,225 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) [2024-11-09 01:32:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2024-11-09 01:32:20,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 01:32:20,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:20,227 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] [2024-11-09 01:32:20,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:32:20,227 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:20,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1695097492, now seen corresponding path program 1 times [2024-11-09 01:32:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 01:32:20,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24041557] [2024-11-09 01:32:20,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:20,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 01:32:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 01:32:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 01:32:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 01:32:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 01:32:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 01:32:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 01:32:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 01:32:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 01:32:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 01:32:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 01:32:21,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 01:32:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 01:32:21,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 01:32:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 01:32:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 01:32:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 01:32:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 01:32:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:32:21,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 01:32:21,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24041557] [2024-11-09 01:32:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24041557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:21,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:21,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:32:21,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744764442] [2024-11-09 01:32:21,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:21,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:32:21,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 01:32:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:32:21,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:32:21,946 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) [2024-11-09 01:32:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:22,157 INFO L93 Difference]: Finished difference Result 215 states and 308 transitions. [2024-11-09 01:32:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:32:22,158 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 [2024-11-09 01:32:22,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:22,161 INFO L225 Difference]: With dead ends: 215 [2024-11-09 01:32:22,161 INFO L226 Difference]: Without dead ends: 110 [2024-11-09 01:32:22,162 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 [2024-11-09 01:32:22,166 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 [2024-11-09 01:32:22,166 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] [2024-11-09 01:32:22,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-09 01:32:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-11-09 01:32:22,199 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) [2024-11-09 01:32:22,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 156 transitions. [2024-11-09 01:32:22,201 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 156 transitions. Word has length 140 [2024-11-09 01:32:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:22,202 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 156 transitions. [2024-11-09 01:32:22,202 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) [2024-11-09 01:32:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 156 transitions. [2024-11-09 01:32:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 01:32:22,208 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:22,208 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] [2024-11-09 01:32:22,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:32:22,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:22,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:22,209 INFO L85 PathProgramCache]: Analyzing trace with hash -994032914, now seen corresponding path program 1 times [2024-11-09 01:32:22,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 01:32:22,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120982146] [2024-11-09 01:32:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:22,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 01:32:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 01:32:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 01:32:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-09 01:32:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 01:32:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 01:32:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 01:32:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-09 01:32:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 01:32:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 01:32:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-09 01:32:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-09 01:32:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-09 01:32:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 01:32:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-09 01:32:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 01:32:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-09 01:32:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-09 01:32:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-09 01:32:23,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 01:32:23,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120982146] [2024-11-09 01:32:23,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120982146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:23,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:23,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 01:32:23,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505421431] [2024-11-09 01:32:23,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:23,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 01:32:23,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 01:32:23,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 01:32:23,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 01:32:23,857 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) [2024-11-09 01:32:24,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:24,371 INFO L93 Difference]: Finished difference Result 362 states and 516 transitions. [2024-11-09 01:32:24,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 01:32:24,371 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 [2024-11-09 01:32:24,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:24,374 INFO L225 Difference]: With dead ends: 362 [2024-11-09 01:32:24,377 INFO L226 Difference]: Without dead ends: 255 [2024-11-09 01:32:24,378 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 [2024-11-09 01:32:24,379 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 [2024-11-09 01:32:24,383 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] [2024-11-09 01:32:24,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-09 01:32:24,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 250. [2024-11-09 01:32:24,418 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) [2024-11-09 01:32:24,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 358 transitions. [2024-11-09 01:32:24,422 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 358 transitions. Word has length 140 [2024-11-09 01:32:24,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:24,423 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 358 transitions. [2024-11-09 01:32:24,423 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) [2024-11-09 01:32:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 358 transitions. [2024-11-09 01:32:24,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 01:32:24,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:24,427 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] [2024-11-09 01:32:24,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:32:24,430 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:24,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:24,430 INFO L85 PathProgramCache]: Analyzing trace with hash 847661109, now seen corresponding path program 1 times [2024-11-09 01:32:24,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 01:32:24,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399264985] [2024-11-09 01:32:24,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:24,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat