./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-p_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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-p_file-64.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 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 11:40:16,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 11:40:16,465 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 11:40:16,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 11:40:16,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 11:40:16,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 11:40:16,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 11:40:16,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 11:40:16,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 11:40:16,492 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 11:40:16,493 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 11:40:16,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 11:40:16,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 11:40:16,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 11:40:16,498 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 11:40:16,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 11:40:16,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 11:40:16,499 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 11:40:16,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 11:40:16,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 11:40:16,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 11:40:16,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 11:40:16,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 11:40:16,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 11:40:16,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 11:40:16,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 11:40:16,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 11:40:16,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 11:40:16,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 11:40:16,503 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 11:40:16,503 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 11:40:16,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 11:40:16,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:40:16,504 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 11:40:16,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 11:40:16,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 11:40:16,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 11:40:16,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 11:40:16,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 11:40:16,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 11:40:16,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 11:40:16,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 11:40:16,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ba4618d2c12b624306627073ace8aff518621333cf7d938808dd7313f83bbaa [2024-10-24 11:40:16,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 11:40:16,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 11:40:16,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 11:40:16,803 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 11:40:16,804 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 11:40:16,805 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-10-24 11:40:18,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 11:40:18,250 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 11:40:18,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i [2024-10-24 11:40:18,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708c27581/ae6ae1ab05a948dca1a815206b7834f6/FLAGcf967cb25 [2024-10-24 11:40:18,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/708c27581/ae6ae1ab05a948dca1a815206b7834f6 [2024-10-24 11:40:18,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 11:40:18,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 11:40:18,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 11:40:18,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 11:40:18,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 11:40:18,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:18,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46f4093d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18, skipping insertion in model container [2024-10-24 11:40:18,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:18,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 11:40:18,824 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-10-24 11:40:18,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:40:18,907 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 11:40:18,917 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-p_file-64.i[916,929] [2024-10-24 11:40:18,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 11:40:18,971 INFO L204 MainTranslator]: Completed translation [2024-10-24 11:40:18,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18 WrapperNode [2024-10-24 11:40:18,973 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 11:40:18,974 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 11:40:18,974 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 11:40:18,974 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 11:40:18,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:18,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,023 INFO L138 Inliner]: procedures = 29, calls = 177, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 558 [2024-10-24 11:40:19,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 11:40:19,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 11:40:19,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 11:40:19,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 11:40:19,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,039 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,061 INFO L175 MemorySlicer]: Split 131 memory accesses to 16 slices as follows [2, 15, 6, 10, 11, 8, 8, 8, 10, 7, 6, 8, 3, 12, 7, 10]. 11 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. The 18 writes are split as follows [0, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1]. [2024-10-24 11:40:19,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,086 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,097 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 11:40:19,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 11:40:19,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 11:40:19,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 11:40:19,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (1/1) ... [2024-10-24 11:40:19,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 11:40:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:40:19,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 11:40:19,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 11:40:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 11:40:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 11:40:19,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-24 11:40:19,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-24 11:40:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-24 11:40:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-24 11:40:19,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-24 11:40:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2024-10-24 11:40:19,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-24 11:40:19,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2024-10-24 11:40:19,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-24 11:40:19,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-24 11:40:19,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#9 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#10 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#11 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#12 [2024-10-24 11:40:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#13 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#14 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#15 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 11:40:19,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 11:40:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-24 11:40:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 11:40:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 11:40:19,352 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 11:40:19,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 11:40:19,848 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-10-24 11:40:19,848 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 11:40:19,880 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 11:40:19,880 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 11:40:19,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:40:19 BoogieIcfgContainer [2024-10-24 11:40:19,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 11:40:19,884 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 11:40:19,884 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 11:40:19,886 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 11:40:19,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:40:18" (1/3) ... [2024-10-24 11:40:19,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545ee684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:40:19, skipping insertion in model container [2024-10-24 11:40:19,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:40:18" (2/3) ... [2024-10-24 11:40:19,888 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545ee684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:40:19, skipping insertion in model container [2024-10-24 11:40:19,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:40:19" (3/3) ... [2024-10-24 11:40:19,889 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-p_file-64.i [2024-10-24 11:40:19,902 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 11:40:19,903 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 11:40:19,962 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 11:40:19,969 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;@56ac240a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 11:40:19,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 11:40:19,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 100 states have internal predecessors, (145), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 11:40:19,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:19,990 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:19,990 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:19,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 938953730, now seen corresponding path program 1 times [2024-10-24 11:40:20,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582148503] [2024-10-24 11:40:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:20,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:20,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,418 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:40:20,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:20,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582148503] [2024-10-24 11:40:20,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582148503] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:40:20,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:40:20,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 11:40:20,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008725147] [2024-10-24 11:40:20,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:40:20,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 11:40:20,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:20,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 11:40:20,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:40:20,446 INFO L87 Difference]: Start difference. First operand has 122 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 100 states have internal predecessors, (145), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:40:20,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:20,482 INFO L93 Difference]: Finished difference Result 241 states and 388 transitions. [2024-10-24 11:40:20,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 11:40:20,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-24 11:40:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:20,490 INFO L225 Difference]: With dead ends: 241 [2024-10-24 11:40:20,490 INFO L226 Difference]: Without dead ends: 120 [2024-10-24 11:40:20,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 11:40:20,495 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:20,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:40:20,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-10-24 11:40:20,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-10-24 11:40:20,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 98 states have (on average 1.4285714285714286) internal successors, (140), 98 states have internal predecessors, (140), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 180 transitions. [2024-10-24 11:40:20,553 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 180 transitions. Word has length 154 [2024-10-24 11:40:20,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:20,554 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 180 transitions. [2024-10-24 11:40:20,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:40:20,554 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 180 transitions. [2024-10-24 11:40:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 11:40:20,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:20,557 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:20,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 11:40:20,557 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:20,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:20,558 INFO L85 PathProgramCache]: Analyzing trace with hash 405407330, now seen corresponding path program 1 times [2024-10-24 11:40:20,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:20,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576943681] [2024-10-24 11:40:20,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:20,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:40:20,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:20,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576943681] [2024-10-24 11:40:20,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576943681] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:40:20,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:40:20,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:40:20,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832669743] [2024-10-24 11:40:20,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:40:20,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:40:20,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:20,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:40:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:40:20,866 INFO L87 Difference]: Start difference. First operand 120 states and 180 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:40:20,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:20,917 INFO L93 Difference]: Finished difference Result 241 states and 362 transitions. [2024-10-24 11:40:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:40:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 154 [2024-10-24 11:40:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:20,920 INFO L225 Difference]: With dead ends: 241 [2024-10-24 11:40:20,920 INFO L226 Difference]: Without dead ends: 122 [2024-10-24 11:40:20,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:40:20,922 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:20,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 515 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:40:20,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-24 11:40:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-24 11:40:20,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 100 states have (on average 1.42) internal successors, (142), 100 states have internal predecessors, (142), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:20,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 182 transitions. [2024-10-24 11:40:20,943 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 182 transitions. Word has length 154 [2024-10-24 11:40:20,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:20,944 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 182 transitions. [2024-10-24 11:40:20,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-24 11:40:20,945 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 182 transitions. [2024-10-24 11:40:20,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-24 11:40:20,950 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:20,950 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:20,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 11:40:20,951 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:20,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1712549728, now seen corresponding path program 1 times [2024-10-24 11:40:20,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:20,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595107891] [2024-10-24 11:40:20,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:20,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:40:21,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595107891] [2024-10-24 11:40:21,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595107891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:40:21,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:40:21,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 11:40:21,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613544111] [2024-10-24 11:40:21,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:40:21,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 11:40:21,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:21,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 11:40:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:40:21,253 INFO L87 Difference]: Start difference. First operand 122 states and 182 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:21,295 INFO L93 Difference]: Finished difference Result 245 states and 366 transitions. [2024-10-24 11:40:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 11:40:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2024-10-24 11:40:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:21,297 INFO L225 Difference]: With dead ends: 245 [2024-10-24 11:40:21,297 INFO L226 Difference]: Without dead ends: 124 [2024-10-24 11:40:21,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 11:40:21,299 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:21,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 515 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:40:21,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-10-24 11:40:21,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-10-24 11:40:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 102 states have (on average 1.411764705882353) internal successors, (144), 102 states have internal predecessors, (144), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:21,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 184 transitions. [2024-10-24 11:40:21,307 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 184 transitions. Word has length 154 [2024-10-24 11:40:21,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:21,308 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 184 transitions. [2024-10-24 11:40:21,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 184 transitions. [2024-10-24 11:40:21,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-24 11:40:21,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:21,310 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:21,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 11:40:21,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:21,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:21,310 INFO L85 PathProgramCache]: Analyzing trace with hash -661838834, now seen corresponding path program 1 times [2024-10-24 11:40:21,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:21,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998868749] [2024-10-24 11:40:21,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:21,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:21,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:40:21,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:21,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998868749] [2024-10-24 11:40:21,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998868749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:40:21,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:40:21,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 11:40:21,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123824825] [2024-10-24 11:40:21,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:40:21,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 11:40:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 11:40:21,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:40:21,601 INFO L87 Difference]: Start difference. First operand 124 states and 184 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:21,641 INFO L93 Difference]: Finished difference Result 250 states and 371 transitions. [2024-10-24 11:40:21,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 11:40:21,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 156 [2024-10-24 11:40:21,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:21,644 INFO L225 Difference]: With dead ends: 250 [2024-10-24 11:40:21,644 INFO L226 Difference]: Without dead ends: 127 [2024-10-24 11:40:21,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 11:40:21,646 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:21,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 681 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 11:40:21,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-10-24 11:40:21,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-10-24 11:40:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 105 states have (on average 1.4) internal successors, (147), 105 states have internal predecessors, (147), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 187 transitions. [2024-10-24 11:40:21,662 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 187 transitions. Word has length 156 [2024-10-24 11:40:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:21,662 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 187 transitions. [2024-10-24 11:40:21,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:21,663 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 187 transitions. [2024-10-24 11:40:21,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-24 11:40:21,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:21,667 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:21,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 11:40:21,667 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:21,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:21,667 INFO L85 PathProgramCache]: Analyzing trace with hash -491697587, now seen corresponding path program 1 times [2024-10-24 11:40:21,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:21,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641835688] [2024-10-24 11:40:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:21,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:22,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:22,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:22,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:22,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-10-24 11:40:22,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:22,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641835688] [2024-10-24 11:40:22,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641835688] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 11:40:22,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 11:40:22,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 11:40:22,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568934547] [2024-10-24 11:40:22,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 11:40:22,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 11:40:22,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:22,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 11:40:22,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 11:40:22,370 INFO L87 Difference]: Start difference. First operand 127 states and 187 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:22,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:22,724 INFO L93 Difference]: Finished difference Result 478 states and 700 transitions. [2024-10-24 11:40:22,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 11:40:22,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 157 [2024-10-24 11:40:22,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:22,727 INFO L225 Difference]: With dead ends: 478 [2024-10-24 11:40:22,728 INFO L226 Difference]: Without dead ends: 352 [2024-10-24 11:40:22,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-24 11:40:22,730 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 378 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:22,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 848 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 11:40:22,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-10-24 11:40:22,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 144. [2024-10-24 11:40:22,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 122 states have internal predecessors, (173), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 213 transitions. [2024-10-24 11:40:22,739 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 213 transitions. Word has length 157 [2024-10-24 11:40:22,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 213 transitions. [2024-10-24 11:40:22,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-10-24 11:40:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 213 transitions. [2024-10-24 11:40:22,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-24 11:40:22,741 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:22,741 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:22,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 11:40:22,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:22,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:22,742 INFO L85 PathProgramCache]: Analyzing trace with hash -786118807, now seen corresponding path program 1 times [2024-10-24 11:40:22,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:22,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690786024] [2024-10-24 11:40:22,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:22,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 11:40:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 11:40:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 11:40:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-24 11:40:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-24 11:40:23,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-24 11:40:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 11:40:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 11:40:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 11:40:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-24 11:40:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-24 11:40:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-24 11:40:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-24 11:40:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-24 11:40:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-24 11:40:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-24 11:40:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-24 11:40:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 11:40:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 11:40:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 11:40:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,554 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 6 proven. 51 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-10-24 11:40:23,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:23,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690786024] [2024-10-24 11:40:23,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690786024] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:40:23,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560164855] [2024-10-24 11:40:23,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:23,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:40:23,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:40:23,557 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:40:23,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 11:40:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:23,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 11:40:23,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:40:23,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 11:40:24,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-10-24 11:40:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 17 proven. 195 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-10-24 11:40:24,264 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:40:24,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560164855] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:40:24,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 11:40:24,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2024-10-24 11:40:24,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055425051] [2024-10-24 11:40:24,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 11:40:24,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 11:40:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:24,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 11:40:24,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2024-10-24 11:40:24,710 INFO L87 Difference]: Start difference. First operand 144 states and 213 transitions. Second operand has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2024-10-24 11:40:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:25,644 INFO L93 Difference]: Finished difference Result 422 states and 618 transitions. [2024-10-24 11:40:25,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 11:40:25,645 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) Word has length 158 [2024-10-24 11:40:25,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:25,647 INFO L225 Difference]: With dead ends: 422 [2024-10-24 11:40:25,647 INFO L226 Difference]: Without dead ends: 262 [2024-10-24 11:40:25,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2024-10-24 11:40:25,648 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 681 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:25,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1234 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 11:40:25,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-24 11:40:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 129. [2024-10-24 11:40:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 106 states have (on average 1.3773584905660377) internal successors, (146), 106 states have internal predecessors, (146), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 11:40:25,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 186 transitions. [2024-10-24 11:40:25,665 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 186 transitions. Word has length 158 [2024-10-24 11:40:25,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:25,665 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 186 transitions. [2024-10-24 11:40:25,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 9.583333333333334) internal successors, (115), 13 states have internal predecessors, (115), 6 states have call successors, (40), 3 states have call predecessors, (40), 4 states have return successors, (40), 5 states have call predecessors, (40), 6 states have call successors, (40) [2024-10-24 11:40:25,665 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 186 transitions. [2024-10-24 11:40:25,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:40:25,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:25,670 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:25,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 11:40:25,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 11:40:25,871 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:25,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:25,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1568549287, now seen corresponding path program 1 times [2024-10-24 11:40:25,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:25,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928836002] [2024-10-24 11:40:25,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:25,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 11:40:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907975175] [2024-10-24 11:40:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:26,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 11:40:26,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 11:40:26,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 11:40:26,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 11:40:26,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 11:40:26,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-24 11:40:26,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 11:40:26,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 11:40:27,211 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 13 proven. 375 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2024-10-24 11:40:27,212 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 11:40:27,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2024-10-24 11:40:27,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 11:40:27,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928836002] [2024-10-24 11:40:27,920 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 11:40:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907975175] [2024-10-24 11:40:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907975175] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 11:40:27,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 11:40:27,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-24 11:40:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113218104] [2024-10-24 11:40:27,921 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 11:40:27,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 11:40:27,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 11:40:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 11:40:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-10-24 11:40:27,922 INFO L87 Difference]: Start difference. First operand 129 states and 186 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:40:28,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 11:40:28,415 INFO L93 Difference]: Finished difference Result 394 states and 564 transitions. [2024-10-24 11:40:28,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 11:40:28,416 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 159 [2024-10-24 11:40:28,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 11:40:28,417 INFO L225 Difference]: With dead ends: 394 [2024-10-24 11:40:28,417 INFO L226 Difference]: Without dead ends: 266 [2024-10-24 11:40:28,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2024-10-24 11:40:28,418 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 314 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 11:40:28,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1252 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 11:40:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-10-24 11:40:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 206. [2024-10-24 11:40:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 160 states have (on average 1.325) internal successors, (212), 160 states have internal predecessors, (212), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-10-24 11:40:28,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 292 transitions. [2024-10-24 11:40:28,437 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 292 transitions. Word has length 159 [2024-10-24 11:40:28,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 11:40:28,437 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 292 transitions. [2024-10-24 11:40:28,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2024-10-24 11:40:28,438 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 292 transitions. [2024-10-24 11:40:28,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-24 11:40:28,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 11:40:28,439 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 11:40:28,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 11:40:28,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-24 11:40:28,640 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 11:40:28,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 11:40:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1434535781, now seen corresponding path program 1 times [2024-10-24 11:40:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 11:40:28,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633767002] [2024-10-24 11:40:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 11:40:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 11:40:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat