./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '2c89bcd51bf13e1fea060d248b91d9829224d3ab75a99cbb44e94fb17c6b367c'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2c89bcd51bf13e1fea060d248b91d9829224d3ab75a99cbb44e94fb17c6b367c --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 07:33:12,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 07:33:12,480 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 07:33:12,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 07:33:12,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 07:33:12,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 07:33:12,499 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 07:33:12,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 07:33:12,500 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 07:33:12,500 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 07:33:12,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 07:33:12,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 07:33:12,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 07:33:12,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 07:33:12,500 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 07:33:12,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 07:33:12,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 07:33:12,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:33:12,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 07:33:12,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 07:33:12,503 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 2c89bcd51bf13e1fea060d248b91d9829224d3ab75a99cbb44e94fb17c6b367c [2024-11-07 07:33:12,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 07:33:12,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 07:33:12,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 07:33:12,826 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 07:33:12,827 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 07:33:12,827 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i [2024-11-07 07:33:14,113 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 07:33:14,342 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 07:33:14,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i [2024-11-07 07:33:14,352 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5489d65/dd31d462e5864932a49d26177e30c5d8/FLAGf49c70439 [2024-11-07 07:33:14,692 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5489d65/dd31d462e5864932a49d26177e30c5d8 [2024-11-07 07:33:14,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 07:33:14,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 07:33:14,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 07:33:14,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 07:33:14,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 07:33:14,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ec5391f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14, skipping insertion in model container [2024-11-07 07:33:14,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 07:33:14,805 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i[913,926] [2024-11-07 07:33:14,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:33:14,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 07:33:14,878 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_normal_file-98.i[913,926] [2024-11-07 07:33:14,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 07:33:14,919 INFO L204 MainTranslator]: Completed translation [2024-11-07 07:33:14,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14 WrapperNode [2024-11-07 07:33:14,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 07:33:14,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 07:33:14,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 07:33:14,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 07:33:14,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,972 INFO L138 Inliner]: procedures = 26, calls = 37, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 166 [2024-11-07 07:33:14,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 07:33:14,977 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 07:33:14,977 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 07:33:14,977 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 07:33:14,989 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:14,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,015 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 07:33:15,016 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,035 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 07:33:15,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 07:33:15,040 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 07:33:15,040 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 07:33:15,041 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (1/1) ... [2024-11-07 07:33:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 07:33:15,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 07:33:15,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 07:33:15,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 07:33:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 07:33:15,085 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 07:33:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 07:33:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 07:33:15,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 07:33:15,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 07:33:15,145 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 07:33:15,146 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 07:33:15,484 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-07 07:33:15,484 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 07:33:15,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 07:33:15,496 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 07:33:15,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:33:15 BoogieIcfgContainer [2024-11-07 07:33:15,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 07:33:15,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 07:33:15,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 07:33:15,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 07:33:15,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:33:14" (1/3) ... [2024-11-07 07:33:15,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30045bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:33:15, skipping insertion in model container [2024-11-07 07:33:15,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:33:14" (2/3) ... [2024-11-07 07:33:15,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30045bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:33:15, skipping insertion in model container [2024-11-07 07:33:15,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:33:15" (3/3) ... [2024-11-07 07:33:15,503 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_normal_file-98.i [2024-11-07 07:33:15,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 07:33:15,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 07:33:15,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 07:33:15,586 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;@66f17d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 07:33:15,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 07:33:15,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 07:33:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:33:15,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:33:15,603 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:33:15,604 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:33:15,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:33:15,609 INFO L85 PathProgramCache]: Analyzing trace with hash -784140647, now seen corresponding path program 1 times [2024-11-07 07:33:15,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:33:15,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146795253] [2024-11-07 07:33:15,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:33:15,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:33:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:33:16,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:33:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 07:33:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:33:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 07:33:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 07:33:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 07:33:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:33:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:33:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:33:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:33:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:33:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:33:16,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:33:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:33:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:33:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:33:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:33:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:33:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:33:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:33:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:33:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:33:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:33:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-07 07:33:16,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:33:16,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146795253] [2024-11-07 07:33:16,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146795253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:33:16,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:33:16,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 07:33:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943089865] [2024-11-07 07:33:16,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:33:16,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 07:33:16,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:33:16,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 07:33:16,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:33:16,956 INFO L87 Difference]: Start difference. First operand has 74 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:33:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:33:17,027 INFO L93 Difference]: Finished difference Result 185 states and 339 transitions. [2024-11-07 07:33:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 07:33:17,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2024-11-07 07:33:17,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:33:17,034 INFO L225 Difference]: With dead ends: 185 [2024-11-07 07:33:17,034 INFO L226 Difference]: Without dead ends: 114 [2024-11-07 07:33:17,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 07:33:17,040 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 98 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:33:17,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 222 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 07:33:17,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-07 07:33:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 70. [2024-11-07 07:33:17,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 44 states have internal predecessors, (57), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 07:33:17,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 105 transitions. [2024-11-07 07:33:17,078 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 105 transitions. Word has length 153 [2024-11-07 07:33:17,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:33:17,080 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 105 transitions. [2024-11-07 07:33:17,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:33:17,080 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 105 transitions. [2024-11-07 07:33:17,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:33:17,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:33:17,082 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:33:17,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 07:33:17,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:33:17,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:33:17,083 INFO L85 PathProgramCache]: Analyzing trace with hash -525975209, now seen corresponding path program 1 times [2024-11-07 07:33:17,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:33:17,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687400615] [2024-11-07 07:33:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:33:17,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:33:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:33:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:33:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 07:33:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:33:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 07:33:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 07:33:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 07:33:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:33:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:33:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:33:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:33:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:33:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:33:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:33:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:33:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:33:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:33:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:33:20,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:33:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:33:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:33:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:33:20,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:33:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:33:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:33:20,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-07 07:33:20,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:33:20,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687400615] [2024-11-07 07:33:20,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687400615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:33:20,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:33:20,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 07:33:20,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278259851] [2024-11-07 07:33:20,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:33:20,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 07:33:20,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:33:20,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 07:33:20,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:33:20,424 INFO L87 Difference]: Start difference. First operand 70 states and 105 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:33:20,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:33:20,879 INFO L93 Difference]: Finished difference Result 249 states and 374 transitions. [2024-11-07 07:33:20,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 07:33:20,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2024-11-07 07:33:20,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:33:20,882 INFO L225 Difference]: With dead ends: 249 [2024-11-07 07:33:20,882 INFO L226 Difference]: Without dead ends: 182 [2024-11-07 07:33:20,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-07 07:33:20,883 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 266 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 07:33:20,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 262 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 07:33:20,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-07 07:33:20,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 176. [2024-11-07 07:33:20,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 106 states have (on average 1.2735849056603774) internal successors, (135), 107 states have internal predecessors, (135), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-07 07:33:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 267 transitions. [2024-11-07 07:33:20,913 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 267 transitions. Word has length 153 [2024-11-07 07:33:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:33:20,913 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 267 transitions. [2024-11-07 07:33:20,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:33:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 267 transitions. [2024-11-07 07:33:20,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:33:20,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:33:20,915 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:33:20,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 07:33:20,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:33:20,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:33:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1249032153, now seen corresponding path program 1 times [2024-11-07 07:33:20,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:33:20,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204982417] [2024-11-07 07:33:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:33:20,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:33:21,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:34:04,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:34:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 07:34:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:34:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 07:34:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 07:34:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 07:34:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:34:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:34:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:34:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:34:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:34:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:34:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:34:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:34:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:34:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:34:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:34:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:34:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:34:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:34:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:34:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:34:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:34:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-07 07:34:04,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:34:04,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204982417] [2024-11-07 07:34:04,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204982417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:34:04,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:34:04,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 07:34:04,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364597523] [2024-11-07 07:34:04,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:34:04,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 07:34:04,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:34:04,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 07:34:04,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-07 07:34:04,555 INFO L87 Difference]: Start difference. First operand 176 states and 267 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:34:05,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:34:05,743 INFO L93 Difference]: Finished difference Result 378 states and 570 transitions. [2024-11-07 07:34:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 07:34:05,744 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 153 [2024-11-07 07:34:05,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:34:05,747 INFO L225 Difference]: With dead ends: 378 [2024-11-07 07:34:05,747 INFO L226 Difference]: Without dead ends: 205 [2024-11-07 07:34:05,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2024-11-07 07:34:05,758 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 52 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 07:34:05,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 480 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 07:34:05,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-07 07:34:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 198. [2024-11-07 07:34:05,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 128 states have (on average 1.28125) internal successors, (164), 129 states have internal predecessors, (164), 66 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (66), 65 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-07 07:34:05,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 296 transitions. [2024-11-07 07:34:05,822 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 296 transitions. Word has length 153 [2024-11-07 07:34:05,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:34:05,822 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 296 transitions. [2024-11-07 07:34:05,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2024-11-07 07:34:05,823 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 296 transitions. [2024-11-07 07:34:05,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:34:05,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:34:05,824 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:34:05,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 07:34:05,827 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:34:05,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:34:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1745962159, now seen corresponding path program 1 times [2024-11-07 07:34:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:34:05,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379606725] [2024-11-07 07:34:05,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:34:05,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:34:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 07:34:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 07:34:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 07:34:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 07:34:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-07 07:34:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-07 07:34:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-07 07:34:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 07:34:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 07:34:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 07:34:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 07:34:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 07:34:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 07:34:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 07:34:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 07:34:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 07:34:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 07:34:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 07:34:08,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 07:34:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 07:34:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 07:34:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 07:34:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 07:34:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 07:34:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 07:34:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2024-11-07 07:34:08,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 07:34:08,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379606725] [2024-11-07 07:34:08,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379606725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 07:34:08,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 07:34:08,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-07 07:34:08,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451078243] [2024-11-07 07:34:08,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 07:34:08,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 07:34:08,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 07:34:08,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 07:34:08,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-07 07:34:08,067 INFO L87 Difference]: Start difference. First operand 198 states and 296 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-07 07:34:09,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 07:34:09,364 INFO L93 Difference]: Finished difference Result 612 states and 924 transitions. [2024-11-07 07:34:09,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 07:34:09,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 153 [2024-11-07 07:34:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 07:34:09,373 INFO L225 Difference]: With dead ends: 612 [2024-11-07 07:34:09,373 INFO L226 Difference]: Without dead ends: 417 [2024-11-07 07:34:09,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2024-11-07 07:34:09,375 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 303 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 07:34:09,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 719 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 07:34:09,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-07 07:34:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 366. [2024-11-07 07:34:09,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 227 states have (on average 1.277533039647577) internal successors, (290), 229 states have internal predecessors, (290), 132 states have call successors, (132), 6 states have call predecessors, (132), 6 states have return successors, (132), 130 states have call predecessors, (132), 132 states have call successors, (132) [2024-11-07 07:34:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 554 transitions. [2024-11-07 07:34:09,444 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 554 transitions. Word has length 153 [2024-11-07 07:34:09,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 07:34:09,447 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 554 transitions. [2024-11-07 07:34:09,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-07 07:34:09,447 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 554 transitions. [2024-11-07 07:34:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 07:34:09,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 07:34:09,448 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 07:34:09,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 07:34:09,449 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 07:34:09,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 07:34:09,449 INFO L85 PathProgramCache]: Analyzing trace with hash 29045203, now seen corresponding path program 1 times [2024-11-07 07:34:09,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 07:34:09,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592226533] [2024-11-07 07:34:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 07:34:09,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 07:34:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat