./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-31.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_filler-pe-co_file-31.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', '6a7974064a8971bceca2aca98594e85fbf3a77834158073b9b1833f7bdef4f33'] 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_filler-pe-co_file-31.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 6a7974064a8971bceca2aca98594e85fbf3a77834158073b9b1833f7bdef4f33 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 06:07:18,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 06:07:18,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 06:07:18,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 06:07:18,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 06:07:18,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 06:07:18,376 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 06:07:18,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 06:07:18,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 06:07:18,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 06:07:18,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 06:07:18,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 06:07:18,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 06:07:18,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 06:07:18,379 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 06:07:18,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 06:07:18,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 06:07:18,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:07:18,381 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 06:07:18,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 06:07:18,381 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 -> 6a7974064a8971bceca2aca98594e85fbf3a77834158073b9b1833f7bdef4f33 [2024-11-07 06:07:18,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 06:07:18,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 06:07:18,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 06:07:18,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 06:07:18,747 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 06:07:18,748 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-31.i [2024-11-07 06:07:20,083 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 06:07:20,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 06:07:20,444 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-31.i [2024-11-07 06:07:20,461 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ff990bae/1180c43c393f4ff5857cf338b40d6bf2/FLAG4b79874fb [2024-11-07 06:07:20,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7ff990bae/1180c43c393f4ff5857cf338b40d6bf2 [2024-11-07 06:07:20,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 06:07:20,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 06:07:20,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 06:07:20,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 06:07:20,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 06:07:20,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ef2a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20, skipping insertion in model container [2024-11-07 06:07:20,509 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 06:07:20,696 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_filler-pe-co_file-31.i[919,932] [2024-11-07 06:07:20,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:07:20,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 06:07:20,816 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_filler-pe-co_file-31.i[919,932] [2024-11-07 06:07:20,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 06:07:20,875 INFO L204 MainTranslator]: Completed translation [2024-11-07 06:07:20,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20 WrapperNode [2024-11-07 06:07:20,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 06:07:20,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 06:07:20,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 06:07:20,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 06:07:20,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,946 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2024-11-07 06:07:20,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 06:07:20,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 06:07:20,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 06:07:20,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 06:07:20,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:20,971 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,012 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 06:07:21,015 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,016 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,049 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 06:07:21,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 06:07:21,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 06:07:21,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 06:07:21,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (1/1) ... [2024-11-07 06:07:21,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 06:07:21,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 06:07:21,105 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 06:07:21,110 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 06:07:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 06:07:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 06:07:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 06:07:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 06:07:21,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 06:07:21,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 06:07:21,226 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 06:07:21,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 06:07:21,891 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-07 06:07:21,892 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 06:07:21,909 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 06:07:21,911 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 06:07:21,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:07:21 BoogieIcfgContainer [2024-11-07 06:07:21,912 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 06:07:21,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 06:07:21,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 06:07:21,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 06:07:21,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:07:20" (1/3) ... [2024-11-07 06:07:21,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338f41b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:07:21, skipping insertion in model container [2024-11-07 06:07:21,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:07:20" (2/3) ... [2024-11-07 06:07:21,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@338f41b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:07:21, skipping insertion in model container [2024-11-07 06:07:21,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:07:21" (3/3) ... [2024-11-07 06:07:21,925 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-31.i [2024-11-07 06:07:21,941 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 06:07:21,942 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 06:07:22,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 06:07:22,028 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;@24880b64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 06:07:22,028 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 06:07:22,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 120 states, 69 states have (on average 1.391304347826087) internal successors, (96), 70 states have internal predecessors, (96), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 06:07:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-07 06:07:22,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:07:22,058 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:22,059 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:07:22,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:07:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1963317735, now seen corresponding path program 1 times [2024-11-07 06:07:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:07:22,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697470828] [2024-11-07 06:07:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:07:22,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:07:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:07:22,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:07:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:07:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:07:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:07:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:07:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:07:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:07:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:07:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:07:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:07:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:07:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:07:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:07:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:07:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:07:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:07:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:07:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:07:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:07:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:07:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:07:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:07:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:07:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:07:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 06:07:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 06:07:22,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:07:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:07:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:07:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 06:07:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:07:22,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:07:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:07:22,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 06:07:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 06:07:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 06:07:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 06:07:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 06:07:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 06:07:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 06:07:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 06:07:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 06:07:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 06:07:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 06:07:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:07:22,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 06:07:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:07:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:22,937 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:07:22,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:07:22,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697470828] [2024-11-07 06:07:22,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697470828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:07:22,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:07:22,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 06:07:22,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242546780] [2024-11-07 06:07:22,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:07:22,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 06:07:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:07:22,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 06:07:22,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:07:22,983 INFO L87 Difference]: Start difference. First operand has 120 states, 69 states have (on average 1.391304347826087) internal successors, (96), 70 states have internal predecessors, (96), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 06:07:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:07:23,038 INFO L93 Difference]: Finished difference Result 233 states and 426 transitions. [2024-11-07 06:07:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 06:07:23,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 290 [2024-11-07 06:07:23,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:07:23,057 INFO L225 Difference]: With dead ends: 233 [2024-11-07 06:07:23,058 INFO L226 Difference]: Without dead ends: 116 [2024-11-07 06:07:23,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 06:07:23,074 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:07:23,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:07:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-07 06:07:23,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-07 06:07:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 66 states have (on average 1.3484848484848484) internal successors, (89), 66 states have internal predecessors, (89), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 06:07:23,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 185 transitions. [2024-11-07 06:07:23,160 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 185 transitions. Word has length 290 [2024-11-07 06:07:23,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:07:23,164 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 185 transitions. [2024-11-07 06:07:23,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.5) internal successors, (53), 2 states have internal predecessors, (53), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-07 06:07:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 185 transitions. [2024-11-07 06:07:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-07 06:07:23,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:07:23,174 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:23,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 06:07:23,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:07:23,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:07:23,177 INFO L85 PathProgramCache]: Analyzing trace with hash -443989991, now seen corresponding path program 1 times [2024-11-07 06:07:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:07:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178148263] [2024-11-07 06:07:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:07:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:07:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:07:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:07:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:07:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:07:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:07:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:07:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:07:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:07:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:07:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:07:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:07:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:07:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:07:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:07:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:07:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:07:23,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:07:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:07:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:07:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:07:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:07:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:07:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:07:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:07:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:07:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 06:07:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 06:07:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:07:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:07:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:07:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 06:07:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:07:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:07:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:07:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 06:07:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 06:07:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 06:07:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 06:07:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 06:07:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 06:07:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 06:07:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 06:07:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 06:07:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 06:07:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 06:07:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:07:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 06:07:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:07:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:23,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:07:23,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:07:23,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178148263] [2024-11-07 06:07:23,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178148263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:07:23,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:07:23,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:07:23,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040734880] [2024-11-07 06:07:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:07:23,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:07:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:07:23,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:07:23,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:07:23,871 INFO L87 Difference]: Start difference. First operand 116 states and 185 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:07:23,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:07:23,986 INFO L93 Difference]: Finished difference Result 341 states and 547 transitions. [2024-11-07 06:07:23,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:07:23,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 290 [2024-11-07 06:07:23,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:07:23,991 INFO L225 Difference]: With dead ends: 341 [2024-11-07 06:07:23,991 INFO L226 Difference]: Without dead ends: 228 [2024-11-07 06:07:23,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 06:07:23,994 INFO L432 NwaCegarLoop]: 353 mSDtfsCounter, 173 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:07:23,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 527 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:07:23,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2024-11-07 06:07:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 120. [2024-11-07 06:07:24,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 70 states have internal predecessors, (94), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 06:07:24,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 190 transitions. [2024-11-07 06:07:24,030 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 190 transitions. Word has length 290 [2024-11-07 06:07:24,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:07:24,034 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 190 transitions. [2024-11-07 06:07:24,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:07:24,035 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 190 transitions. [2024-11-07 06:07:24,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-07 06:07:24,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:07:24,043 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:24,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 06:07:24,043 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:07:24,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:07:24,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1465058345, now seen corresponding path program 1 times [2024-11-07 06:07:24,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:07:24,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025059364] [2024-11-07 06:07:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:07:24,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:07:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 06:07:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-07 06:07:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 06:07:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-07 06:07:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-07 06:07:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-07 06:07:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-07 06:07:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-07 06:07:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-07 06:07:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-07 06:07:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-07 06:07:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-07 06:07:24,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-07 06:07:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-07 06:07:24,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-07 06:07:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 06:07:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-07 06:07:24,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 06:07:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-07 06:07:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-07 06:07:24,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-07 06:07:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 06:07:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-07 06:07:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-07 06:07:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-07 06:07:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-07 06:07:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-07 06:07:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-07 06:07:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-07 06:07:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-07 06:07:24,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-07 06:07:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-07 06:07:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-07 06:07:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-07 06:07:24,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-07 06:07:24,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-07 06:07:24,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-07 06:07:24,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-07 06:07:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-07 06:07:24,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-07 06:07:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-07 06:07:24,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-07 06:07:24,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-07 06:07:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-07 06:07:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-07 06:07:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-07 06:07:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-07 06:07:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-07 06:07:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 06:07:24,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-07 06:07:24,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 06:07:24,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025059364] [2024-11-07 06:07:24,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025059364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 06:07:24,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 06:07:24,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 06:07:24,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771744554] [2024-11-07 06:07:24,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 06:07:24,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 06:07:24,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 06:07:24,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 06:07:24,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 06:07:24,962 INFO L87 Difference]: Start difference. First operand 120 states and 190 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:07:25,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 06:07:25,016 INFO L93 Difference]: Finished difference Result 237 states and 377 transitions. [2024-11-07 06:07:25,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 06:07:25,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 290 [2024-11-07 06:07:25,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 06:07:25,023 INFO L225 Difference]: With dead ends: 237 [2024-11-07 06:07:25,025 INFO L226 Difference]: Without dead ends: 120 [2024-11-07 06:07:25,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 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 06:07:25,028 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 0 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 06:07:25,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 356 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 06:07:25,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-07 06:07:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-07 06:07:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 70 states have internal predecessors, (93), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-07 06:07:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 189 transitions. [2024-11-07 06:07:25,053 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 189 transitions. Word has length 290 [2024-11-07 06:07:25,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 06:07:25,055 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 189 transitions. [2024-11-07 06:07:25,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-07 06:07:25,055 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 189 transitions. [2024-11-07 06:07:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-07 06:07:25,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 06:07:25,062 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:07:25,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 06:07:25,063 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 06:07:25,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 06:07:25,063 INFO L85 PathProgramCache]: Analyzing trace with hash 309949017, now seen corresponding path program 1 times [2024-11-07 06:07:25,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 06:07:25,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830621951] [2024-11-07 06:07:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 06:07:25,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 06:07:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat