./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c --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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c', '-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', '3eeb0f6f2b02b7e21805b04c6d73ace1817e7f4dc839756d5005dcaf1471275d'] 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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c -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 3eeb0f6f2b02b7e21805b04c6d73ace1817e7f4dc839756d5005dcaf1471275d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:32:28,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:32:28,186 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:32:28,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:32:28,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:32:28,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:32:28,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:32:28,216 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:32:28,216 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:32:28,216 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:32:28,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:32:28,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:32:28,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:32:28,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:32:28,216 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:32:28,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:32:28,217 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:32:28,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:32:28,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:32:28,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:32:28,219 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 -> 3eeb0f6f2b02b7e21805b04c6d73ace1817e7f4dc839756d5005dcaf1471275d [2024-11-07 01:32:28,486 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:32:28,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:32:28,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:32:28,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:32:28,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:32:28,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-07 01:32:29,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:32:30,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:32:30,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-07 01:32:30,320 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27d447879/07008131467e4e5688bb7122f10de753/FLAG1ba61237f [2024-11-07 01:32:30,338 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/27d447879/07008131467e4e5688bb7122f10de753 [2024-11-07 01:32:30,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:32:30,342 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:32:30,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:32:30,344 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:32:30,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:32:30,350 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:30" (1/1) ... [2024-11-07 01:32:30,351 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100422ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:30, skipping insertion in model container [2024-11-07 01:32:30,351 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:32:30" (1/1) ... [2024-11-07 01:32:30,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:32:30,734 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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[11668,11681] [2024-11-07 01:32:30,770 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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[14005,14018] [2024-11-07 01:32:31,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:32:31,263 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:32:31,335 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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[11668,11681] [2024-11-07 01:32:31,345 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/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c[14005,14018] [2024-11-07 01:32:31,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:32:31,701 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:32:31,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31 WrapperNode [2024-11-07 01:32:31,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:32:31,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:32:31,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:32:31,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:32:31,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:31,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,076 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5097 [2024-11-07 01:32:32,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:32:32,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:32:32,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:32:32,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:32:32,089 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,375 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 01:32:32,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:32:32,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:32:32,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:32:32,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:32:32,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (1/1) ... [2024-11-07 01:32:32,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:32:32,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:32,737 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 01:32:32,741 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 01:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:32:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:32:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:32:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:32:32,878 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:32:32,880 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:32:37,377 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-07 01:32:37,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:32:37,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:32:37,410 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 01:32:37,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:32:37 BoogieIcfgContainer [2024-11-07 01:32:37,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:32:37,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:32:37,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:32:37,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:32:37,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:32:30" (1/3) ... [2024-11-07 01:32:37,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a4fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:32:37, skipping insertion in model container [2024-11-07 01:32:37,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:32:31" (2/3) ... [2024-11-07 01:32:37,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a4fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:32:37, skipping insertion in model container [2024-11-07 01:32:37,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:32:37" (3/3) ... [2024-11-07 01:32:37,426 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label03.c [2024-11-07 01:32:37,439 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:32:37,439 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:32:37,559 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:32:37,573 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;@7d8fd727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:32:37,573 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:32:37,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 01:32:37,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:37,593 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:32:37,593 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:37,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1043615675, now seen corresponding path program 1 times [2024-11-07 01:32:37,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:37,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276449734] [2024-11-07 01:32:37,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:37,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:37,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:37,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276449734] [2024-11-07 01:32:37,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276449734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:37,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:37,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 01:32:37,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486067531] [2024-11-07 01:32:37,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:37,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:37,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:37,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:37,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:37,873 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:41,208 INFO L93 Difference]: Finished difference Result 2534 states and 4866 transitions. [2024-11-07 01:32:41,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:41,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-07 01:32:41,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:41,236 INFO L225 Difference]: With dead ends: 2534 [2024-11-07 01:32:41,236 INFO L226 Difference]: Without dead ends: 1586 [2024-11-07 01:32:41,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 01:32:41,244 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 939 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 939 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 3033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:41,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [939 Valid, 665 Invalid, 3033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 01:32:41,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-07 01:32:41,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2024-11-07 01:32:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1584 states have (on average 1.6136363636363635) internal successors, (2556), 1585 states have internal predecessors, (2556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2556 transitions. [2024-11-07 01:32:41,349 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2556 transitions. Word has length 20 [2024-11-07 01:32:41,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:41,349 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2556 transitions. [2024-11-07 01:32:41,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2556 transitions. [2024-11-07 01:32:41,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-07 01:32:41,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:41,351 INFO L215 NwaCegarLoop]: trace histogram [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 01:32:41,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:32:41,352 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:41,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:41,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-11-07 01:32:41,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:41,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714962589] [2024-11-07 01:32:41,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:41,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:41,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714962589] [2024-11-07 01:32:41,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714962589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:41,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:41,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:32:41,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185656307] [2024-11-07 01:32:41,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:41,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:32:41,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:41,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:32:41,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:32:41,606 INFO L87 Difference]: Start difference. First operand 1586 states and 2556 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:41,688 INFO L93 Difference]: Finished difference Result 1634 states and 2630 transitions. [2024-11-07 01:32:41,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 01:32:41,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-07 01:32:41,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:41,696 INFO L225 Difference]: With dead ends: 1634 [2024-11-07 01:32:41,696 INFO L226 Difference]: Without dead ends: 1586 [2024-11-07 01:32:41,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:32:41,698 INFO L432 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:41,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:41,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-07 01:32:41,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2024-11-07 01:32:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1584 states have (on average 1.5940656565656566) internal successors, (2525), 1585 states have internal predecessors, (2525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2525 transitions. [2024-11-07 01:32:41,737 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2525 transitions. Word has length 24 [2024-11-07 01:32:41,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:41,737 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2525 transitions. [2024-11-07 01:32:41,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:41,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2525 transitions. [2024-11-07 01:32:41,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 01:32:41,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:41,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:41,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:32:41,740 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:41,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:41,740 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-11-07 01:32:41,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982814579] [2024-11-07 01:32:41,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:41,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:41,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:41,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982814579] [2024-11-07 01:32:41,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982814579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:41,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:41,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:41,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293580530] [2024-11-07 01:32:41,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:41,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:41,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:41,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:41,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:41,997 INFO L87 Difference]: Start difference. First operand 1586 states and 2525 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:42,255 INFO L93 Difference]: Finished difference Result 2026 states and 3225 transitions. [2024-11-07 01:32:42,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 01:32:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-07 01:32:42,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:42,266 INFO L225 Difference]: With dead ends: 2026 [2024-11-07 01:32:42,267 INFO L226 Difference]: Without dead ends: 1982 [2024-11-07 01:32:42,268 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-07 01:32:42,269 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:42,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:42,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2024-11-07 01:32:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1628. [2024-11-07 01:32:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1626 states have (on average 1.5940959409594095) internal successors, (2592), 1627 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2592 transitions. [2024-11-07 01:32:42,318 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2592 transitions. Word has length 54 [2024-11-07 01:32:42,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:42,321 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2592 transitions. [2024-11-07 01:32:42,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2592 transitions. [2024-11-07 01:32:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:32:42,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:42,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:42,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:32:42,323 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:42,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:42,326 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-11-07 01:32:42,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:42,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232345709] [2024-11-07 01:32:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:42,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:42,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:42,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:42,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232345709] [2024-11-07 01:32:42,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232345709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:42,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:42,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:42,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336096269] [2024-11-07 01:32:42,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:42,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:42,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:42,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:42,461 INFO L87 Difference]: Start difference. First operand 1628 states and 2592 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:42,511 INFO L93 Difference]: Finished difference Result 1789 states and 2847 transitions. [2024-11-07 01:32:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:42,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 01:32:42,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:42,519 INFO L225 Difference]: With dead ends: 1789 [2024-11-07 01:32:42,519 INFO L226 Difference]: Without dead ends: 1703 [2024-11-07 01:32:42,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:42,521 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:42,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-07 01:32:42,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1699. [2024-11-07 01:32:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.5922215674720095) internal successors, (2702), 1698 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2702 transitions. [2024-11-07 01:32:42,567 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2702 transitions. Word has length 56 [2024-11-07 01:32:42,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:42,567 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2702 transitions. [2024-11-07 01:32:42,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:42,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2702 transitions. [2024-11-07 01:32:42,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-07 01:32:42,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:42,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:42,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:32:42,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:42,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-11-07 01:32:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:42,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349868388] [2024-11-07 01:32:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:42,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:42,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:42,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349868388] [2024-11-07 01:32:42,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349868388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:42,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:42,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:42,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108019683] [2024-11-07 01:32:42,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:42,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:42,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:42,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:42,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:42,903 INFO L87 Difference]: Start difference. First operand 1699 states and 2702 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:43,115 INFO L93 Difference]: Finished difference Result 1858 states and 2950 transitions. [2024-11-07 01:32:43,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:43,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-07 01:32:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:43,123 INFO L225 Difference]: With dead ends: 1858 [2024-11-07 01:32:43,123 INFO L226 Difference]: Without dead ends: 1701 [2024-11-07 01:32:43,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-07 01:32:43,126 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 5976 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5976 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:43,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5976 Valid, 1807 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-11-07 01:32:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1699. [2024-11-07 01:32:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.5910430170889807) internal successors, (2700), 1698 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2700 transitions. [2024-11-07 01:32:43,161 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2700 transitions. Word has length 56 [2024-11-07 01:32:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:43,161 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2700 transitions. [2024-11-07 01:32:43,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2700 transitions. [2024-11-07 01:32:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-07 01:32:43,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:43,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:43,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:32:43,164 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:43,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:43,164 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-11-07 01:32:43,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:43,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586306820] [2024-11-07 01:32:43,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:43,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:43,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:43,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586306820] [2024-11-07 01:32:43,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586306820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:43,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:43,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 01:32:43,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773376107] [2024-11-07 01:32:43,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:43,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 01:32:43,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:43,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 01:32:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:32:43,445 INFO L87 Difference]: Start difference. First operand 1699 states and 2700 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:43,517 INFO L93 Difference]: Finished difference Result 1707 states and 2709 transitions. [2024-11-07 01:32:43,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 01:32:43,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-07 01:32:43,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:43,526 INFO L225 Difference]: With dead ends: 1707 [2024-11-07 01:32:43,526 INFO L226 Difference]: Without dead ends: 1705 [2024-11-07 01:32:43,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:32:43,527 INFO L432 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:43,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-07 01:32:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2024-11-07 01:32:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1703 states have (on average 1.5883734586024663) internal successors, (2705), 1704 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2705 transitions. [2024-11-07 01:32:43,564 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2705 transitions. Word has length 57 [2024-11-07 01:32:43,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:43,564 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2705 transitions. [2024-11-07 01:32:43,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2705 transitions. [2024-11-07 01:32:43,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:32:43,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:43,566 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:43,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:32:43,566 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:43,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:43,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-11-07 01:32:43,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:43,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419255480] [2024-11-07 01:32:43,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:43,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:43,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:43,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419255480] [2024-11-07 01:32:43,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419255480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:43,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:43,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:43,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942192729] [2024-11-07 01:32:43,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:43,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:43,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:43,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:43,644 INFO L87 Difference]: Start difference. First operand 1705 states and 2705 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:43,677 INFO L93 Difference]: Finished difference Result 2015 states and 3177 transitions. [2024-11-07 01:32:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:43,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-07 01:32:43,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:43,686 INFO L225 Difference]: With dead ends: 2015 [2024-11-07 01:32:43,686 INFO L226 Difference]: Without dead ends: 1852 [2024-11-07 01:32:43,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:43,688 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:43,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-07 01:32:43,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1850. [2024-11-07 01:32:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1848 states have (on average 1.5811688311688312) internal successors, (2922), 1849 states have internal predecessors, (2922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2922 transitions. [2024-11-07 01:32:43,727 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2922 transitions. Word has length 58 [2024-11-07 01:32:43,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:43,728 INFO L471 AbstractCegarLoop]: Abstraction has 1850 states and 2922 transitions. [2024-11-07 01:32:43,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2922 transitions. [2024-11-07 01:32:43,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:32:43,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:43,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:43,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:32:43,730 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:43,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-11-07 01:32:43,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:43,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356627984] [2024-11-07 01:32:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:43,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:43,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:43,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:43,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356627984] [2024-11-07 01:32:43,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356627984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:43,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:43,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:43,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088394796] [2024-11-07 01:32:43,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:43,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:43,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:43,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:43,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:43,798 INFO L87 Difference]: Start difference. First operand 1850 states and 2922 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:43,834 INFO L93 Difference]: Finished difference Result 2434 states and 3800 transitions. [2024-11-07 01:32:43,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:43,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-07 01:32:43,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:43,844 INFO L225 Difference]: With dead ends: 2434 [2024-11-07 01:32:43,844 INFO L226 Difference]: Without dead ends: 2126 [2024-11-07 01:32:43,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:43,845 INFO L432 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:43,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:43,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2024-11-07 01:32:43,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 2124. [2024-11-07 01:32:43,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2122 states have (on average 1.5664467483506126) internal successors, (3324), 2123 states have internal predecessors, (3324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3324 transitions. [2024-11-07 01:32:43,893 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3324 transitions. Word has length 58 [2024-11-07 01:32:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:43,893 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 3324 transitions. [2024-11-07 01:32:43,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:43,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3324 transitions. [2024-11-07 01:32:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:32:43,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:43,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:43,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:32:43,895 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:43,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-11-07 01:32:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:43,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154733857] [2024-11-07 01:32:43,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:43,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:43,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:43,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154733857] [2024-11-07 01:32:43,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154733857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:43,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:43,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:43,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302782582] [2024-11-07 01:32:43,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:43,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:43,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:43,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:43,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:43,958 INFO L87 Difference]: Start difference. First operand 2124 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:44,002 INFO L93 Difference]: Finished difference Result 3224 states and 4950 transitions. [2024-11-07 01:32:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:44,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-07 01:32:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:44,012 INFO L225 Difference]: With dead ends: 3224 [2024-11-07 01:32:44,013 INFO L226 Difference]: Without dead ends: 2642 [2024-11-07 01:32:44,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:44,016 INFO L432 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:44,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-11-07 01:32:44,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2640. [2024-11-07 01:32:44,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2638 states have (on average 1.5405610310841547) internal successors, (4064), 2639 states have internal predecessors, (4064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4064 transitions. [2024-11-07 01:32:44,075 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4064 transitions. Word has length 58 [2024-11-07 01:32:44,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:44,075 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 4064 transitions. [2024-11-07 01:32:44,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4064 transitions. [2024-11-07 01:32:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-07 01:32:44,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:44,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:44,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:32:44,076 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:44,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:44,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-11-07 01:32:44,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:44,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048139973] [2024-11-07 01:32:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:44,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:44,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:44,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:44,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048139973] [2024-11-07 01:32:44,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048139973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:44,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:44,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:44,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308892073] [2024-11-07 01:32:44,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:44,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:44,130 INFO L87 Difference]: Start difference. First operand 2640 states and 4064 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:44,191 INFO L93 Difference]: Finished difference Result 4708 states and 7058 transitions. [2024-11-07 01:32:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:44,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-07 01:32:44,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:44,204 INFO L225 Difference]: With dead ends: 4708 [2024-11-07 01:32:44,205 INFO L226 Difference]: Without dead ends: 3610 [2024-11-07 01:32:44,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:44,208 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:44,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:44,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2024-11-07 01:32:44,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3608. [2024-11-07 01:32:44,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3606 states have (on average 1.5019412090959512) internal successors, (5416), 3607 states have internal predecessors, (5416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 5416 transitions. [2024-11-07 01:32:44,300 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 5416 transitions. Word has length 58 [2024-11-07 01:32:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:44,301 INFO L471 AbstractCegarLoop]: Abstraction has 3608 states and 5416 transitions. [2024-11-07 01:32:44,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 5416 transitions. [2024-11-07 01:32:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 01:32:44,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:44,302 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:44,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:32:44,302 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:44,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-11-07 01:32:44,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:44,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543602160] [2024-11-07 01:32:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:44,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:44,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:44,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543602160] [2024-11-07 01:32:44,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543602160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:44,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:44,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:44,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847784005] [2024-11-07 01:32:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:44,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:44,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:44,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:44,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:44,385 INFO L87 Difference]: Start difference. First operand 3608 states and 5416 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:44,455 INFO L93 Difference]: Finished difference Result 5791 states and 8590 transitions. [2024-11-07 01:32:44,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:44,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-07 01:32:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:44,472 INFO L225 Difference]: With dead ends: 5791 [2024-11-07 01:32:44,472 INFO L226 Difference]: Without dead ends: 4604 [2024-11-07 01:32:44,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:44,475 INFO L432 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:44,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-07 01:32:44,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2024-11-07 01:32:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.4804347826086957) internal successors, (6810), 4601 states have internal predecessors, (6810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6810 transitions. [2024-11-07 01:32:44,586 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6810 transitions. Word has length 60 [2024-11-07 01:32:44,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:44,586 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6810 transitions. [2024-11-07 01:32:44,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:44,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6810 transitions. [2024-11-07 01:32:44,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:32:44,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:44,589 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:44,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:32:44,589 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:44,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:44,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-11-07 01:32:44,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:44,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137881674] [2024-11-07 01:32:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:44,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-07 01:32:44,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:44,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137881674] [2024-11-07 01:32:44,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137881674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:44,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:44,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:44,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790192906] [2024-11-07 01:32:44,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:44,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:44,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:44,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:44,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:44,737 INFO L87 Difference]: Start difference. First operand 4602 states and 6810 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:45,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:45,102 INFO L93 Difference]: Finished difference Result 20550 states and 29472 transitions. [2024-11-07 01:32:45,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:45,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:32:45,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:45,148 INFO L225 Difference]: With dead ends: 20550 [2024-11-07 01:32:45,148 INFO L226 Difference]: Without dead ends: 17492 [2024-11-07 01:32:45,161 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:32:45,161 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 6328 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6328 SdHoareTripleChecker+Valid, 3660 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:45,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6328 Valid, 3660 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17492 states. [2024-11-07 01:32:45,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17492 to 7658. [2024-11-07 01:32:45,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7658 states, 7656 states have (on average 1.4516718913270636) internal successors, (11114), 7657 states have internal predecessors, (11114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:45,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7658 states to 7658 states and 11114 transitions. [2024-11-07 01:32:45,521 INFO L78 Accepts]: Start accepts. Automaton has 7658 states and 11114 transitions. Word has length 77 [2024-11-07 01:32:45,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:45,521 INFO L471 AbstractCegarLoop]: Abstraction has 7658 states and 11114 transitions. [2024-11-07 01:32:45,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:45,522 INFO L276 IsEmpty]: Start isEmpty. Operand 7658 states and 11114 transitions. [2024-11-07 01:32:45,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:32:45,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:45,524 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:45,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 01:32:45,524 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:45,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:45,525 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-11-07 01:32:45,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:45,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576723745] [2024-11-07 01:32:45,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:45,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:45,669 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-07 01:32:45,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:45,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576723745] [2024-11-07 01:32:45,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576723745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:45,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:45,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:45,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969136815] [2024-11-07 01:32:45,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:45,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:45,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:45,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:45,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:45,670 INFO L87 Difference]: Start difference. First operand 7658 states and 11114 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:46,056 INFO L93 Difference]: Finished difference Result 23606 states and 33776 transitions. [2024-11-07 01:32:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:46,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:32:46,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:46,104 INFO L225 Difference]: With dead ends: 23606 [2024-11-07 01:32:46,104 INFO L226 Difference]: Without dead ends: 20548 [2024-11-07 01:32:46,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:32:46,118 INFO L432 NwaCegarLoop]: 1610 mSDtfsCounter, 6357 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6357 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:46,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6357 Valid, 3559 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:46,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20548 states. [2024-11-07 01:32:46,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20548 to 12250. [2024-11-07 01:32:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12250 states, 12248 states have (on average 1.4312540822991509) internal successors, (17530), 12249 states have internal predecessors, (17530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:46,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 17530 transitions. [2024-11-07 01:32:46,565 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 17530 transitions. Word has length 77 [2024-11-07 01:32:46,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:46,565 INFO L471 AbstractCegarLoop]: Abstraction has 12250 states and 17530 transitions. [2024-11-07 01:32:46,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 17530 transitions. [2024-11-07 01:32:46,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:32:46,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:46,568 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:46,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 01:32:46,569 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:46,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:46,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-11-07 01:32:46,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:46,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066923389] [2024-11-07 01:32:46,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:46,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:46,729 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-07 01:32:46,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:46,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066923389] [2024-11-07 01:32:46,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066923389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:46,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:46,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:46,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858342866] [2024-11-07 01:32:46,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:46,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:46,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:46,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:46,731 INFO L87 Difference]: Start difference. First operand 12250 states and 17530 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:47,286 INFO L93 Difference]: Finished difference Result 26662 states and 38080 transitions. [2024-11-07 01:32:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:47,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:32:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:47,343 INFO L225 Difference]: With dead ends: 26662 [2024-11-07 01:32:47,343 INFO L226 Difference]: Without dead ends: 23604 [2024-11-07 01:32:47,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:32:47,357 INFO L432 NwaCegarLoop]: 1607 mSDtfsCounter, 6398 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6398 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:47,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6398 Valid, 3543 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23604 states. [2024-11-07 01:32:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23604 to 15306. [2024-11-07 01:32:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15306 states, 15304 states have (on average 1.4266858337689492) internal successors, (21834), 15305 states have internal predecessors, (21834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15306 states to 15306 states and 21834 transitions. [2024-11-07 01:32:47,928 INFO L78 Accepts]: Start accepts. Automaton has 15306 states and 21834 transitions. Word has length 77 [2024-11-07 01:32:47,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:47,929 INFO L471 AbstractCegarLoop]: Abstraction has 15306 states and 21834 transitions. [2024-11-07 01:32:47,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 15306 states and 21834 transitions. [2024-11-07 01:32:47,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 01:32:47,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:47,933 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:47,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 01:32:47,933 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:47,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:47,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-11-07 01:32:47,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:47,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123999439] [2024-11-07 01:32:47,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:47,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-07 01:32:48,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:48,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123999439] [2024-11-07 01:32:48,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123999439] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:48,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:48,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:48,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520074668] [2024-11-07 01:32:48,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:48,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:48,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:48,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:48,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:48,104 INFO L87 Difference]: Start difference. First operand 15306 states and 21834 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:48,555 INFO L93 Difference]: Finished difference Result 29718 states and 42384 transitions. [2024-11-07 01:32:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:48,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-07 01:32:48,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:48,621 INFO L225 Difference]: With dead ends: 29718 [2024-11-07 01:32:48,621 INFO L226 Difference]: Without dead ends: 26660 [2024-11-07 01:32:48,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:32:48,635 INFO L432 NwaCegarLoop]: 1611 mSDtfsCounter, 6343 mSDsluCounter, 2002 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6343 SdHoareTripleChecker+Valid, 3613 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:48,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6343 Valid, 3613 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:48,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26660 states. [2024-11-07 01:32:48,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26660 to 18362. [2024-11-07 01:32:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 18360 states have (on average 1.4236383442265794) internal successors, (26138), 18361 states have internal predecessors, (26138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 26138 transitions. [2024-11-07 01:32:49,022 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 26138 transitions. Word has length 77 [2024-11-07 01:32:49,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:49,022 INFO L471 AbstractCegarLoop]: Abstraction has 18362 states and 26138 transitions. [2024-11-07 01:32:49,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:49,023 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 26138 transitions. [2024-11-07 01:32:49,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:32:49,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:49,025 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:49,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 01:32:49,026 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:49,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-11-07 01:32:49,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:49,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140303911] [2024-11-07 01:32:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:49,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:49,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140303911] [2024-11-07 01:32:49,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140303911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:49,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:49,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840571392] [2024-11-07 01:32:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:49,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:49,123 INFO L87 Difference]: Start difference. First operand 18362 states and 26138 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:49,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:49,398 INFO L93 Difference]: Finished difference Result 30354 states and 43233 transitions. [2024-11-07 01:32:49,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:49,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 01:32:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:49,422 INFO L225 Difference]: With dead ends: 30354 [2024-11-07 01:32:49,422 INFO L226 Difference]: Without dead ends: 13536 [2024-11-07 01:32:49,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:49,438 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:49,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:49,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2024-11-07 01:32:49,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13534. [2024-11-07 01:32:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13532 states have (on average 1.4317174105823234) internal successors, (19374), 13533 states have internal predecessors, (19374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 19374 transitions. [2024-11-07 01:32:49,717 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 19374 transitions. Word has length 79 [2024-11-07 01:32:49,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:49,717 INFO L471 AbstractCegarLoop]: Abstraction has 13534 states and 19374 transitions. [2024-11-07 01:32:49,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 19374 transitions. [2024-11-07 01:32:49,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 01:32:49,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:49,719 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:49,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 01:32:49,719 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:49,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:49,720 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-11-07 01:32:49,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:49,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451209619] [2024-11-07 01:32:49,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:49,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:49,865 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 01:32:49,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:49,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451209619] [2024-11-07 01:32:49,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451209619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:49,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:49,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:32:49,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776130961] [2024-11-07 01:32:49,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:49,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:32:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:49,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:32:49,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:32:49,867 INFO L87 Difference]: Start difference. First operand 13534 states and 19374 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:50,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:50,282 INFO L93 Difference]: Finished difference Result 24426 states and 34900 transitions. [2024-11-07 01:32:50,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:32:50,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-07 01:32:50,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:50,328 INFO L225 Difference]: With dead ends: 24426 [2024-11-07 01:32:50,328 INFO L226 Difference]: Without dead ends: 22248 [2024-11-07 01:32:50,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:32:50,341 INFO L432 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:50,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 01:32:50,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22248 states. [2024-11-07 01:32:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22248 to 15710. [2024-11-07 01:32:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 15708 states have (on average 1.4289533995416348) internal successors, (22446), 15709 states have internal predecessors, (22446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 22446 transitions. [2024-11-07 01:32:50,763 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 22446 transitions. Word has length 79 [2024-11-07 01:32:50,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:50,763 INFO L471 AbstractCegarLoop]: Abstraction has 15710 states and 22446 transitions. [2024-11-07 01:32:50,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:50,763 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 22446 transitions. [2024-11-07 01:32:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 01:32:50,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:50,766 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:50,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 01:32:50,766 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:50,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:50,767 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-11-07 01:32:50,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:50,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946005659] [2024-11-07 01:32:50,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:50,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:50,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946005659] [2024-11-07 01:32:50,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946005659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:50,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:50,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481024239] [2024-11-07 01:32:50,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:50,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:50,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:50,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:50,864 INFO L87 Difference]: Start difference. First operand 15710 states and 22446 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:51,013 INFO L93 Difference]: Finished difference Result 22786 states and 32432 transitions. [2024-11-07 01:32:51,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:51,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-07 01:32:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:51,035 INFO L225 Difference]: With dead ends: 22786 [2024-11-07 01:32:51,035 INFO L226 Difference]: Without dead ends: 8640 [2024-11-07 01:32:51,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:51,052 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:51,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:51,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2024-11-07 01:32:51,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 8638. [2024-11-07 01:32:51,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8638 states, 8636 states have (on average 1.4309865678554887) internal successors, (12358), 8637 states have internal predecessors, (12358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12358 transitions. [2024-11-07 01:32:51,241 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12358 transitions. Word has length 80 [2024-11-07 01:32:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:51,243 INFO L471 AbstractCegarLoop]: Abstraction has 8638 states and 12358 transitions. [2024-11-07 01:32:51,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12358 transitions. [2024-11-07 01:32:51,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-07 01:32:51,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:51,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:51,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 01:32:51,246 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:51,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-11-07 01:32:51,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:51,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017947105] [2024-11-07 01:32:51,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:51,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:51,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017947105] [2024-11-07 01:32:51,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017947105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:51,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:51,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:51,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361846829] [2024-11-07 01:32:51,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:51,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:51,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:51,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:51,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:51,334 INFO L87 Difference]: Start difference. First operand 8638 states and 12358 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:51,445 INFO L93 Difference]: Finished difference Result 12178 states and 17300 transitions. [2024-11-07 01:32:51,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:51,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-07 01:32:51,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:51,457 INFO L225 Difference]: With dead ends: 12178 [2024-11-07 01:32:51,457 INFO L226 Difference]: Without dead ends: 5104 [2024-11-07 01:32:51,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:51,465 INFO L432 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:51,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:51,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2024-11-07 01:32:51,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5102. [2024-11-07 01:32:51,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 5100 states have (on average 1.444313725490196) internal successors, (7366), 5101 states have internal predecessors, (7366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 7366 transitions. [2024-11-07 01:32:51,617 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 7366 transitions. Word has length 82 [2024-11-07 01:32:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:51,617 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 7366 transitions. [2024-11-07 01:32:51,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 7366 transitions. [2024-11-07 01:32:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 01:32:51,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:51,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:51,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 01:32:51,621 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:51,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-11-07 01:32:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:51,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905159670] [2024-11-07 01:32:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:51,731 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:51,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905159670] [2024-11-07 01:32:51,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905159670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:51,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:51,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546316220] [2024-11-07 01:32:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:51,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:51,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:51,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:51,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:51,732 INFO L87 Difference]: Start difference. First operand 5102 states and 7366 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:51,805 INFO L93 Difference]: Finished difference Result 6874 states and 9812 transitions. [2024-11-07 01:32:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-07 01:32:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:51,813 INFO L225 Difference]: With dead ends: 6874 [2024-11-07 01:32:51,814 INFO L226 Difference]: Without dead ends: 3336 [2024-11-07 01:32:51,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:51,820 INFO L432 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:51,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:51,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2024-11-07 01:32:51,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3334. [2024-11-07 01:32:51,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 1.469387755102041) internal successors, (4896), 3333 states have internal predecessors, (4896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4896 transitions. [2024-11-07 01:32:51,913 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4896 transitions. Word has length 84 [2024-11-07 01:32:51,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:51,914 INFO L471 AbstractCegarLoop]: Abstraction has 3334 states and 4896 transitions. [2024-11-07 01:32:51,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:51,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4896 transitions. [2024-11-07 01:32:51,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 01:32:51,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:51,915 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:51,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 01:32:51,918 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:51,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:51,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-11-07 01:32:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612173944] [2024-11-07 01:32:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:52,022 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:52,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:52,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612173944] [2024-11-07 01:32:52,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612173944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:32:52,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:32:52,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 01:32:52,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529655765] [2024-11-07 01:32:52,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:32:52,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 01:32:52,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 01:32:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 01:32:52,025 INFO L87 Difference]: Start difference. First operand 3334 states and 4896 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:52,078 INFO L93 Difference]: Finished difference Result 4222 states and 6107 transitions. [2024-11-07 01:32:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 01:32:52,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-07 01:32:52,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:52,085 INFO L225 Difference]: With dead ends: 4222 [2024-11-07 01:32:52,085 INFO L226 Difference]: Without dead ends: 2452 [2024-11-07 01:32:52,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 01:32:52,088 INFO L432 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:52,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 01:32:52,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2024-11-07 01:32:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2450. [2024-11-07 01:32:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 1.5008169934640523) internal successors, (3674), 2449 states have internal predecessors, (3674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3674 transitions. [2024-11-07 01:32:52,152 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3674 transitions. Word has length 86 [2024-11-07 01:32:52,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:52,158 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3674 transitions. [2024-11-07 01:32:52,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:52,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3674 transitions. [2024-11-07 01:32:52,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-07 01:32:52,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:52,159 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:52,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 01:32:52,160 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:52,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-11-07 01:32:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:52,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356109779] [2024-11-07 01:32:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:52,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:53,451 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:53,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356109779] [2024-11-07 01:32:53,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356109779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:53,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259303953] [2024-11-07 01:32:53,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:53,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:53,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:53,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:32:53,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 01:32:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:53,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 01:32:53,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:54,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:32:55,089 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:55,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259303953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:32:55,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:32:55,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-07 01:32:55,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289825989] [2024-11-07 01:32:55,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:32:55,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-07 01:32:55,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:32:55,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-07 01:32:55,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-07 01:32:55,091 INFO L87 Difference]: Start difference. First operand 2450 states and 3674 transitions. Second operand has 29 states, 29 states have (on average 8.0) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:32:57,841 INFO L93 Difference]: Finished difference Result 5788 states and 8216 transitions. [2024-11-07 01:32:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-07 01:32:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 8.0) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-07 01:32:57,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:32:57,853 INFO L225 Difference]: With dead ends: 5788 [2024-11-07 01:32:57,853 INFO L226 Difference]: Without dead ends: 4902 [2024-11-07 01:32:57,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 949 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=848, Invalid=3442, Unknown=0, NotChecked=0, Total=4290 [2024-11-07 01:32:57,859 INFO L432 NwaCegarLoop]: 1501 mSDtfsCounter, 26435 mSDsluCounter, 7961 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26435 SdHoareTripleChecker+Valid, 9462 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:32:57,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26435 Valid, 9462 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 01:32:57,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4902 states. [2024-11-07 01:32:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4902 to 4816. [2024-11-07 01:32:57,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4816 states, 4814 states have (on average 1.4167012879102618) internal successors, (6820), 4815 states have internal predecessors, (6820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4816 states to 4816 states and 6820 transitions. [2024-11-07 01:32:57,965 INFO L78 Accepts]: Start accepts. Automaton has 4816 states and 6820 transitions. Word has length 88 [2024-11-07 01:32:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:32:57,965 INFO L471 AbstractCegarLoop]: Abstraction has 4816 states and 6820 transitions. [2024-11-07 01:32:57,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 8.0) internal successors, (232), 28 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:32:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4816 states and 6820 transitions. [2024-11-07 01:32:57,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 01:32:57,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:32:57,967 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:57,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 01:32:58,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-07 01:32:58,168 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:32:58,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:32:58,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1190065338, now seen corresponding path program 1 times [2024-11-07 01:32:58,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:32:58,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642348209] [2024-11-07 01:32:58,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:58,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:32:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:59,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:32:59,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642348209] [2024-11-07 01:32:59,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642348209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:32:59,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902742051] [2024-11-07 01:32:59,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:32:59,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:32:59,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:32:59,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:32:59,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 01:32:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:32:59,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-07 01:32:59,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:32:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:32:59,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:33:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:00,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902742051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:33:00,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:33:00,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 25 [2024-11-07 01:33:00,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40173785] [2024-11-07 01:33:00,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:33:00,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 01:33:00,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:33:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 01:33:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2024-11-07 01:33:00,319 INFO L87 Difference]: Start difference. First operand 4816 states and 6820 transitions. Second operand has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:33:00,868 INFO L93 Difference]: Finished difference Result 11556 states and 15858 transitions. [2024-11-07 01:33:00,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:33:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-07 01:33:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:33:00,877 INFO L225 Difference]: With dead ends: 11556 [2024-11-07 01:33:00,877 INFO L226 Difference]: Without dead ends: 8304 [2024-11-07 01:33:00,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 01:33:00,881 INFO L432 NwaCegarLoop]: 1513 mSDtfsCounter, 21286 mSDsluCounter, 4722 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21286 SdHoareTripleChecker+Valid, 6235 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:33:00,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21286 Valid, 6235 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:33:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8304 states. [2024-11-07 01:33:01,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8304 to 8222. [2024-11-07 01:33:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8222 states, 8220 states have (on average 1.368978102189781) internal successors, (11253), 8221 states have internal predecessors, (11253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8222 states to 8222 states and 11253 transitions. [2024-11-07 01:33:01,075 INFO L78 Accepts]: Start accepts. Automaton has 8222 states and 11253 transitions. Word has length 89 [2024-11-07 01:33:01,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:33:01,076 INFO L471 AbstractCegarLoop]: Abstraction has 8222 states and 11253 transitions. [2024-11-07 01:33:01,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 8.26923076923077) internal successors, (215), 25 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:01,076 INFO L276 IsEmpty]: Start isEmpty. Operand 8222 states and 11253 transitions. [2024-11-07 01:33:01,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 01:33:01,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:33:01,078 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:33:01,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 01:33:01,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:33:01,281 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:33:01,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:33:01,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1526963865, now seen corresponding path program 1 times [2024-11-07 01:33:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:33:01,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757786120] [2024-11-07 01:33:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:33:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:01,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:33:01,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757786120] [2024-11-07 01:33:01,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757786120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:33:01,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428333575] [2024-11-07 01:33:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:01,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:33:01,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:33:01,651 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:33:01,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 01:33:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:01,816 INFO L255 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-07 01:33:01,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:33:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:02,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:33:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:03,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428333575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:33:03,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:33:03,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-07 01:33:03,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207384096] [2024-11-07 01:33:03,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:33:03,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-07 01:33:03,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:33:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-07 01:33:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2024-11-07 01:33:03,617 INFO L87 Difference]: Start difference. First operand 8222 states and 11253 transitions. Second operand has 32 states, 32 states have (on average 7.6875) internal successors, (246), 32 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:08,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:33:08,903 INFO L93 Difference]: Finished difference Result 97872 states and 129143 transitions. [2024-11-07 01:33:08,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-07 01:33:08,903 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 7.6875) internal successors, (246), 32 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-07 01:33:08,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:33:08,994 INFO L225 Difference]: With dead ends: 97872 [2024-11-07 01:33:08,994 INFO L226 Difference]: Without dead ends: 91214 [2024-11-07 01:33:09,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3130 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1701, Invalid=9219, Unknown=0, NotChecked=0, Total=10920 [2024-11-07 01:33:09,013 INFO L432 NwaCegarLoop]: 1506 mSDtfsCounter, 20074 mSDsluCounter, 15738 mSDsCounter, 0 mSdLazyCounter, 1539 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20074 SdHoareTripleChecker+Valid, 17244 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:33:09,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20074 Valid, 17244 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1539 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:33:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91214 states. [2024-11-07 01:33:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91214 to 20984. [2024-11-07 01:33:09,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20984 states, 20982 states have (on average 1.3225621961681442) internal successors, (27750), 20983 states have internal predecessors, (27750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:09,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20984 states to 20984 states and 27750 transitions. [2024-11-07 01:33:09,928 INFO L78 Accepts]: Start accepts. Automaton has 20984 states and 27750 transitions. Word has length 90 [2024-11-07 01:33:09,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:33:09,928 INFO L471 AbstractCegarLoop]: Abstraction has 20984 states and 27750 transitions. [2024-11-07 01:33:09,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 7.6875) internal successors, (246), 32 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:09,928 INFO L276 IsEmpty]: Start isEmpty. Operand 20984 states and 27750 transitions. [2024-11-07 01:33:09,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 01:33:09,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:33:09,931 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:33:09,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 01:33:10,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:33:10,132 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:33:10,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:33:10,132 INFO L85 PathProgramCache]: Analyzing trace with hash 82250382, now seen corresponding path program 1 times [2024-11-07 01:33:10,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:33:10,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754040553] [2024-11-07 01:33:10,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:10,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:33:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:10,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:33:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754040553] [2024-11-07 01:33:10,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754040553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:33:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55308687] [2024-11-07 01:33:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:10,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:33:10,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:33:10,537 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:33:10,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 01:33:10,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:10,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 01:33:10,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:33:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:11,053 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:33:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:11,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55308687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:33:11,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:33:11,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-07 01:33:11,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516213389] [2024-11-07 01:33:11,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:33:11,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 01:33:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:33:11,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 01:33:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-07 01:33:11,724 INFO L87 Difference]: Start difference. First operand 20984 states and 27750 transitions. Second operand has 21 states, 21 states have (on average 10.047619047619047) internal successors, (211), 20 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:12,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:33:12,839 INFO L93 Difference]: Finished difference Result 61290 states and 80493 transitions. [2024-11-07 01:33:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 01:33:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.047619047619047) internal successors, (211), 20 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-07 01:33:12,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:33:12,964 INFO L225 Difference]: With dead ends: 61290 [2024-11-07 01:33:12,965 INFO L226 Difference]: Without dead ends: 41870 [2024-11-07 01:33:12,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2024-11-07 01:33:12,974 INFO L432 NwaCegarLoop]: 1526 mSDtfsCounter, 13728 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13728 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:33:12,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13728 Valid, 4909 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 01:33:12,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41870 states. [2024-11-07 01:33:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41870 to 41378. [2024-11-07 01:33:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41378 states, 41376 states have (on average 1.2991589327146171) internal successors, (53754), 41377 states have internal predecessors, (53754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:14,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41378 states to 41378 states and 53754 transitions. [2024-11-07 01:33:14,222 INFO L78 Accepts]: Start accepts. Automaton has 41378 states and 53754 transitions. Word has length 91 [2024-11-07 01:33:14,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:33:14,222 INFO L471 AbstractCegarLoop]: Abstraction has 41378 states and 53754 transitions. [2024-11-07 01:33:14,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.047619047619047) internal successors, (211), 20 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 01:33:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 41378 states and 53754 transitions. [2024-11-07 01:33:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-07 01:33:14,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:33:14,226 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:33:14,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 01:33:14,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-07 01:33:14,431 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:33:14,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:33:14,431 INFO L85 PathProgramCache]: Analyzing trace with hash 415758883, now seen corresponding path program 1 times [2024-11-07 01:33:14,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:33:14,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639085910] [2024-11-07 01:33:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:14,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:33:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:15,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:33:15,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639085910] [2024-11-07 01:33:15,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639085910] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 01:33:15,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441022371] [2024-11-07 01:33:15,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:33:15,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 01:33:15,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:33:15,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 01:33:15,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 01:33:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:33:15,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-07 01:33:15,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 01:33:21,282 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:21,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 01:33:26,910 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:33:26,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441022371] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 01:33:26,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 01:33:26,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 32, 31] total 69 [2024-11-07 01:33:26,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061335881] [2024-11-07 01:33:26,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 01:33:26,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-07 01:33:26,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:33:26,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-07 01:33:26,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=782, Invalid=3910, Unknown=0, NotChecked=0, Total=4692 [2024-11-07 01:33:26,913 INFO L87 Difference]: Start difference. First operand 41378 states and 53754 transitions. Second operand has 69 states, 69 states have (on average 3.681159420289855) internal successors, (254), 69 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)