./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.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/Problem05_label46+token_ring.08.cil-2.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', 'fde4aa10540dafc8826e147080809d5acc35a439830c8d5d4d25a271d8a78822'] 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/Problem05_label46+token_ring.08.cil-2.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 fde4aa10540dafc8826e147080809d5acc35a439830c8d5d4d25a271d8a78822 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:05:52,381 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:05:52,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:05:52,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:05:52,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:05:52,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:05:52,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:05:52,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:05:52,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:05:52,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:05:52,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:05:52,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:05:52,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:05:52,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:05:52,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:05:52,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:05:52,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:05:52,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:05:52,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:05:52,501 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 -> fde4aa10540dafc8826e147080809d5acc35a439830c8d5d4d25a271d8a78822 [2024-11-07 01:05:52,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:05:52,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:05:52,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:05:52,794 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:05:52,796 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:05:52,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c [2024-11-07 01:05:54,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:05:54,925 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:05:54,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.08.cil-2.c [2024-11-07 01:05:54,994 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/982b2dc5d/22cde0facf6f4d9ea394039741f8fb6f/FLAG7c3392465 [2024-11-07 01:05:55,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/982b2dc5d/22cde0facf6f4d9ea394039741f8fb6f [2024-11-07 01:05:55,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:05:55,019 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:05:55,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:05:55,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:05:55,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:05:55,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:55" (1/1) ... [2024-11-07 01:05:55,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7416ea9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:55, skipping insertion in model container [2024-11-07 01:05:55,028 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:05:55" (1/1) ... [2024-11-07 01:05:55,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:05:56,495 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/Problem05_label46+token_ring.08.cil-2.c[382357,382370] [2024-11-07 01:05:56,521 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/Problem05_label46+token_ring.08.cil-2.c[383339,383352] [2024-11-07 01:05:56,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:05:56,736 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:05:57,390 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/Problem05_label46+token_ring.08.cil-2.c[382357,382370] [2024-11-07 01:05:57,394 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/Problem05_label46+token_ring.08.cil-2.c[383339,383352] [2024-11-07 01:05:57,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:05:57,516 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:05:57,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57 WrapperNode [2024-11-07 01:05:57,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:05:57,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:05:57,518 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:05:57,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:05:57,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:57,628 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,035 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 37, calls inlined = 37, statements flattened = 12999 [2024-11-07 01:05:58,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:05:58,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:05:58,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:05:58,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:05:58,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,254 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 01:05:58,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:05:58,672 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:05:58,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:05:58,673 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:05:58,674 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (1/1) ... [2024-11-07 01:05:58,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:05:58,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:05:58,706 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 01:05:58,712 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 01:05:58,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:05:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:05:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:05:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:05:58,730 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:05:58,730 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:05:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:05:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-07 01:05:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-07 01:05:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:05:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:05:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:05:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:05:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:05:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:05:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:05:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:05:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:05:58,879 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:05:58,881 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:06:06,793 INFO L? ?]: Removed 1735 outVars from TransFormulas that were not future-live. [2024-11-07 01:06:06,794 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:06:06,869 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:06:06,869 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-07 01:06:06,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:06 BoogieIcfgContainer [2024-11-07 01:06:06,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:06:06,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:06:06,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:06:06,878 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:06:06,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:05:55" (1/3) ... [2024-11-07 01:06:06,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e76b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:06, skipping insertion in model container [2024-11-07 01:06:06,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:05:57" (2/3) ... [2024-11-07 01:06:06,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e76b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:06:06, skipping insertion in model container [2024-11-07 01:06:06,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:06:06" (3/3) ... [2024-11-07 01:06:06,880 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.08.cil-2.c [2024-11-07 01:06:06,893 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:06:06,893 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:06:06,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:06:07,006 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;@774f2e03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:06:07,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:06:07,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2024-11-07 01:06:07,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:07,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:07,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:07,040 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:07,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1791270743, now seen corresponding path program 1 times [2024-11-07 01:06:07,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:07,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854599900] [2024-11-07 01:06:07,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:07,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:07,652 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 01:06:07,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:07,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854599900] [2024-11-07 01:06:07,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854599900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:07,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:07,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:06:07,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421173247] [2024-11-07 01:06:07,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:07,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:06:07,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:07,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:06:07,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:06:07,688 INFO L87 Difference]: Start difference. First operand has 2482 states, 2448 states have (on average 1.8455882352941178) internal successors, (4518), 2453 states have internal predecessors, (4518), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:09,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:09,142 INFO L93 Difference]: Finished difference Result 5055 states and 9290 transitions. [2024-11-07 01:06:09,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:06:09,145 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:09,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:09,177 INFO L225 Difference]: With dead ends: 5055 [2024-11-07 01:06:09,177 INFO L226 Difference]: Without dead ends: 2512 [2024-11-07 01:06:09,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:06:09,193 INFO L432 NwaCegarLoop]: 4302 mSDtfsCounter, 761 mSDsluCounter, 12397 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 16699 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:09,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 16699 Invalid, 781 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 01:06:09,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2512 states. [2024-11-07 01:06:09,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2512 to 2414. [2024-11-07 01:06:09,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2414 states, 2382 states have (on average 1.8316540722082284) internal successors, (4363), 2385 states have internal predecessors, (4363), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-07 01:06:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2414 states to 2414 states and 4409 transitions. [2024-11-07 01:06:09,356 INFO L78 Accepts]: Start accepts. Automaton has 2414 states and 4409 transitions. Word has length 135 [2024-11-07 01:06:09,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:09,356 INFO L471 AbstractCegarLoop]: Abstraction has 2414 states and 4409 transitions. [2024-11-07 01:06:09,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:09,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2414 states and 4409 transitions. [2024-11-07 01:06:09,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:09,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:09,361 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:09,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:06:09,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:09,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:09,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1361612437, now seen corresponding path program 1 times [2024-11-07 01:06:09,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:09,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889330414] [2024-11-07 01:06:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:09,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:09,740 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 01:06:09,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889330414] [2024-11-07 01:06:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889330414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:09,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:09,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:06:09,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98232982] [2024-11-07 01:06:09,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:09,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:06:09,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:09,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:06:09,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:06:09,743 INFO L87 Difference]: Start difference. First operand 2414 states and 4409 transitions. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:11,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:11,884 INFO L93 Difference]: Finished difference Result 3174 states and 5618 transitions. [2024-11-07 01:06:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:06:11,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:11,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:11,898 INFO L225 Difference]: With dead ends: 3174 [2024-11-07 01:06:11,898 INFO L226 Difference]: Without dead ends: 2897 [2024-11-07 01:06:11,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:06:11,901 INFO L432 NwaCegarLoop]: 4211 mSDtfsCounter, 5083 mSDsluCounter, 12640 mSDsCounter, 0 mSdLazyCounter, 1598 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5098 SdHoareTripleChecker+Valid, 16851 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:11,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5098 Valid, 16851 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1598 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:06:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2897 states. [2024-11-07 01:06:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2897 to 2700. [2024-11-07 01:06:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2644 states have (on average 1.8055975794251136) internal successors, (4774), 2648 states have internal predecessors, (4774), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (42), 39 states have call predecessors, (42), 39 states have call successors, (42) [2024-11-07 01:06:11,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 4857 transitions. [2024-11-07 01:06:11,990 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 4857 transitions. Word has length 135 [2024-11-07 01:06:11,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:11,991 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 4857 transitions. [2024-11-07 01:06:11,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:11,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 4857 transitions. [2024-11-07 01:06:11,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:11,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:11,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:11,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:06:11,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:11,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:11,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1571352423, now seen corresponding path program 1 times [2024-11-07 01:06:11,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:11,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724201600] [2024-11-07 01:06:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:11,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:12,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:12,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:12,263 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 01:06:12,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:12,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724201600] [2024-11-07 01:06:12,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724201600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:12,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:12,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:12,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548491055] [2024-11-07 01:06:12,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:12,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:12,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:12,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:12,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:12,265 INFO L87 Difference]: Start difference. First operand 2700 states and 4857 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:14,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:14,844 INFO L93 Difference]: Finished difference Result 3855 states and 6694 transitions. [2024-11-07 01:06:14,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:14,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:14,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:14,860 INFO L225 Difference]: With dead ends: 3855 [2024-11-07 01:06:14,860 INFO L226 Difference]: Without dead ends: 3292 [2024-11-07 01:06:14,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:14,864 INFO L432 NwaCegarLoop]: 4405 mSDtfsCounter, 5100 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5115 SdHoareTripleChecker+Valid, 21761 SdHoareTripleChecker+Invalid, 2603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:14,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5115 Valid, 21761 Invalid, 2603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:06:14,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2024-11-07 01:06:14,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2967. [2024-11-07 01:06:14,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2887 states have (on average 1.7828195358503638) internal successors, (5147), 2892 states have internal predecessors, (5147), 58 states have call successors, (58), 19 states have call predecessors, (58), 20 states have return successors, (61), 57 states have call predecessors, (61), 56 states have call successors, (61) [2024-11-07 01:06:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5266 transitions. [2024-11-07 01:06:14,995 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5266 transitions. Word has length 135 [2024-11-07 01:06:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:14,997 INFO L471 AbstractCegarLoop]: Abstraction has 2967 states and 5266 transitions. [2024-11-07 01:06:14,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5266 transitions. [2024-11-07 01:06:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:15,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:15,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:15,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:06:15,001 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:15,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash -794682647, now seen corresponding path program 1 times [2024-11-07 01:06:15,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308704876] [2024-11-07 01:06:15,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:15,317 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 01:06:15,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:15,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308704876] [2024-11-07 01:06:15,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308704876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:15,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:15,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:15,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845723497] [2024-11-07 01:06:15,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:15,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:15,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:15,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:15,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:15,321 INFO L87 Difference]: Start difference. First operand 2967 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:17,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:17,419 INFO L93 Difference]: Finished difference Result 4859 states and 8269 transitions. [2024-11-07 01:06:17,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:17,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:17,438 INFO L225 Difference]: With dead ends: 4859 [2024-11-07 01:06:17,438 INFO L226 Difference]: Without dead ends: 4029 [2024-11-07 01:06:17,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:17,443 INFO L432 NwaCegarLoop]: 4221 mSDtfsCounter, 5182 mSDsluCounter, 16830 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5197 SdHoareTripleChecker+Valid, 21051 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:17,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5197 Valid, 21051 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 2159 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:06:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2024-11-07 01:06:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 3502. [2024-11-07 01:06:17,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3502 states, 3374 states have (on average 1.7468879668049793) internal successors, (5894), 3381 states have internal predecessors, (5894), 92 states have call successors, (92), 31 states have call predecessors, (92), 34 states have return successors, (103), 93 states have call predecessors, (103), 90 states have call successors, (103) [2024-11-07 01:06:17,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3502 states to 3502 states and 6089 transitions. [2024-11-07 01:06:17,560 INFO L78 Accepts]: Start accepts. Automaton has 3502 states and 6089 transitions. Word has length 135 [2024-11-07 01:06:17,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:17,560 INFO L471 AbstractCegarLoop]: Abstraction has 3502 states and 6089 transitions. [2024-11-07 01:06:17,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3502 states and 6089 transitions. [2024-11-07 01:06:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:17,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:17,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:17,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:06:17,564 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:17,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1207203623, now seen corresponding path program 1 times [2024-11-07 01:06:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:17,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989271825] [2024-11-07 01:06:17,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:17,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:17,841 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 01:06:17,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:17,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989271825] [2024-11-07 01:06:17,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989271825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:17,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:17,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:17,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41349652] [2024-11-07 01:06:17,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:17,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:17,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:17,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:17,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:17,845 INFO L87 Difference]: Start difference. First operand 3502 states and 6089 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:19,990 INFO L93 Difference]: Finished difference Result 6794 states and 11288 transitions. [2024-11-07 01:06:19,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:19,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:20,016 INFO L225 Difference]: With dead ends: 6794 [2024-11-07 01:06:20,016 INFO L226 Difference]: Without dead ends: 5429 [2024-11-07 01:06:20,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:20,026 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5098 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5113 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:20,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5113 Valid, 21759 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2535 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:06:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2024-11-07 01:06:20,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 4573. [2024-11-07 01:06:20,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4573 states, 4349 states have (on average 1.6987813290411589) internal successors, (7388), 4360 states have internal predecessors, (7388), 160 states have call successors, (160), 55 states have call predecessors, (160), 62 states have return successors, (193), 165 states have call predecessors, (193), 158 states have call successors, (193) [2024-11-07 01:06:20,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4573 states to 4573 states and 7741 transitions. [2024-11-07 01:06:20,191 INFO L78 Accepts]: Start accepts. Automaton has 4573 states and 7741 transitions. Word has length 135 [2024-11-07 01:06:20,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:20,191 INFO L471 AbstractCegarLoop]: Abstraction has 4573 states and 7741 transitions. [2024-11-07 01:06:20,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:20,191 INFO L276 IsEmpty]: Start isEmpty. Operand 4573 states and 7741 transitions. [2024-11-07 01:06:20,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:20,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:20,194 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:20,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:06:20,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:20,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:20,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1360618711, now seen corresponding path program 1 times [2024-11-07 01:06:20,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:20,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122272694] [2024-11-07 01:06:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:20,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:20,424 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 01:06:20,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:20,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122272694] [2024-11-07 01:06:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122272694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:20,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:20,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:20,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364332730] [2024-11-07 01:06:20,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:20,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:20,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:20,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:20,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:20,429 INFO L87 Difference]: Start difference. First operand 4573 states and 7741 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:22,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:22,668 INFO L93 Difference]: Finished difference Result 10656 states and 17330 transitions. [2024-11-07 01:06:22,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:22,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:22,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:22,706 INFO L225 Difference]: With dead ends: 10656 [2024-11-07 01:06:22,707 INFO L226 Difference]: Without dead ends: 8220 [2024-11-07 01:06:22,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:22,718 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5094 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2507 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5109 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:22,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5109 Valid, 21759 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2507 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:06:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8220 states. [2024-11-07 01:06:23,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8220 to 6729. [2024-11-07 01:06:23,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6313 states have (on average 1.6473942658007286) internal successors, (10400), 6332 states have internal predecessors, (10400), 296 states have call successors, (296), 103 states have call predecessors, (296), 118 states have return successors, (391), 309 states have call predecessors, (391), 294 states have call successors, (391) [2024-11-07 01:06:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 11087 transitions. [2024-11-07 01:06:23,036 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 11087 transitions. Word has length 135 [2024-11-07 01:06:23,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:23,036 INFO L471 AbstractCegarLoop]: Abstraction has 6729 states and 11087 transitions. [2024-11-07 01:06:23,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 11087 transitions. [2024-11-07 01:06:23,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:23,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:23,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:23,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:06:23,041 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:23,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:23,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1286985643, now seen corresponding path program 1 times [2024-11-07 01:06:23,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:23,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475268433] [2024-11-07 01:06:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:23,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:23,234 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 01:06:23,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:23,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475268433] [2024-11-07 01:06:23,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475268433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:23,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:23,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:23,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216992405] [2024-11-07 01:06:23,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:23,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:23,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:23,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:23,236 INFO L87 Difference]: Start difference. First operand 6729 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:25,812 INFO L93 Difference]: Finished difference Result 18398 states and 29506 transitions. [2024-11-07 01:06:25,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:25,861 INFO L225 Difference]: With dead ends: 18398 [2024-11-07 01:06:25,861 INFO L226 Difference]: Without dead ends: 13806 [2024-11-07 01:06:25,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:25,880 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5093 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:25,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 21759 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2494 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:06:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13806 states. [2024-11-07 01:06:26,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13806 to 11054. [2024-11-07 01:06:26,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.603471815876731) internal successors, (16442), 10289 states have internal predecessors, (16442), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-07 01:06:26,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17851 transitions. [2024-11-07 01:06:26,346 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17851 transitions. Word has length 135 [2024-11-07 01:06:26,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:26,347 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17851 transitions. [2024-11-07 01:06:26,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17851 transitions. [2024-11-07 01:06:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:26,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:26,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:26,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:06:26,356 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:26,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash -844365079, now seen corresponding path program 1 times [2024-11-07 01:06:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:26,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798712579] [2024-11-07 01:06:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:26,583 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 01:06:26,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:26,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798712579] [2024-11-07 01:06:26,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798712579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:26,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:26,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:26,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744717807] [2024-11-07 01:06:26,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:26,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:26,585 INFO L87 Difference]: Start difference. First operand 11054 states and 17851 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:28,113 INFO L93 Difference]: Finished difference Result 22862 states and 36753 transitions. [2024-11-07 01:06:28,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:06:28,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:28,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:28,169 INFO L225 Difference]: With dead ends: 22862 [2024-11-07 01:06:28,169 INFO L226 Difference]: Without dead ends: 13945 [2024-11-07 01:06:28,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:06:28,200 INFO L432 NwaCegarLoop]: 4196 mSDtfsCounter, 4913 mSDsluCounter, 12461 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4929 SdHoareTripleChecker+Valid, 16657 SdHoareTripleChecker+Invalid, 1231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:28,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4929 Valid, 16657 Invalid, 1231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 01:06:28,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13945 states. [2024-11-07 01:06:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13945 to 11054. [2024-11-07 01:06:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11054 states, 10254 states have (on average 1.6002535595865028) internal successors, (16409), 10289 states have internal predecessors, (16409), 568 states have call successors, (568), 199 states have call predecessors, (568), 230 states have return successors, (841), 597 states have call predecessors, (841), 566 states have call successors, (841) [2024-11-07 01:06:28,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11054 states to 11054 states and 17818 transitions. [2024-11-07 01:06:28,769 INFO L78 Accepts]: Start accepts. Automaton has 11054 states and 17818 transitions. Word has length 135 [2024-11-07 01:06:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:28,770 INFO L471 AbstractCegarLoop]: Abstraction has 11054 states and 17818 transitions. [2024-11-07 01:06:28,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 11054 states and 17818 transitions. [2024-11-07 01:06:28,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:28,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:28,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:28,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:06:28,779 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:28,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:28,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1882949653, now seen corresponding path program 1 times [2024-11-07 01:06:28,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:28,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660091490] [2024-11-07 01:06:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:28,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:28,970 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 01:06:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660091490] [2024-11-07 01:06:28,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660091490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:28,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:28,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:28,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418468927] [2024-11-07 01:06:28,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:28,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:28,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:28,972 INFO L87 Difference]: Start difference. First operand 11054 states and 17818 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:31,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:31,579 INFO L93 Difference]: Finished difference Result 33847 states and 53816 transitions. [2024-11-07 01:06:31,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:06:31,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:31,718 INFO L225 Difference]: With dead ends: 33847 [2024-11-07 01:06:31,719 INFO L226 Difference]: Without dead ends: 24930 [2024-11-07 01:06:31,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:06:31,750 INFO L432 NwaCegarLoop]: 4403 mSDtfsCounter, 5085 mSDsluCounter, 17356 mSDsCounter, 0 mSdLazyCounter, 2456 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5100 SdHoareTripleChecker+Valid, 21759 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:31,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5100 Valid, 21759 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2456 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:06:31,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24930 states. [2024-11-07 01:06:32,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24930 to 19768. [2024-11-07 01:06:32,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19768 states, 18200 states have (on average 1.568186813186813) internal successors, (28541), 18267 states have internal predecessors, (28541), 1112 states have call successors, (1112), 391 states have call predecessors, (1112), 454 states have return successors, (1903), 1173 states have call predecessors, (1903), 1110 states have call successors, (1903) [2024-11-07 01:06:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19768 states to 19768 states and 31556 transitions. [2024-11-07 01:06:32,821 INFO L78 Accepts]: Start accepts. Automaton has 19768 states and 31556 transitions. Word has length 135 [2024-11-07 01:06:32,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:32,823 INFO L471 AbstractCegarLoop]: Abstraction has 19768 states and 31556 transitions. [2024-11-07 01:06:32,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:32,823 INFO L276 IsEmpty]: Start isEmpty. Operand 19768 states and 31556 transitions. [2024-11-07 01:06:32,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:32,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:32,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:32,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:06:32,835 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:32,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash 438852265, now seen corresponding path program 1 times [2024-11-07 01:06:32,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:32,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264927925] [2024-11-07 01:06:32,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:32,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:32,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:32,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:33,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:33,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:33,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:33,024 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 01:06:33,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:33,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264927925] [2024-11-07 01:06:33,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264927925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:33,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:33,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:33,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645394228] [2024-11-07 01:06:33,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:33,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:33,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:33,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:33,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:33,027 INFO L87 Difference]: Start difference. First operand 19768 states and 31556 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:36,865 INFO L93 Difference]: Finished difference Result 72559 states and 115090 transitions. [2024-11-07 01:06:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:06:36,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:37,066 INFO L225 Difference]: With dead ends: 72559 [2024-11-07 01:06:37,067 INFO L226 Difference]: Without dead ends: 54928 [2024-11-07 01:06:37,123 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:06:37,124 INFO L432 NwaCegarLoop]: 4401 mSDtfsCounter, 5414 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2436 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5438 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:37,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5438 Valid, 21749 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2436 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 01:06:37,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54928 states. [2024-11-07 01:06:39,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54928 to 37065. [2024-11-07 01:06:39,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37065 states, 34025 states have (on average 1.5508302718589273) internal successors, (52767), 34156 states have internal predecessors, (52767), 2136 states have call successors, (2136), 775 states have call predecessors, (2136), 902 states have return successors, (4449), 2261 states have call predecessors, (4449), 2134 states have call successors, (4449) [2024-11-07 01:06:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37065 states to 37065 states and 59352 transitions. [2024-11-07 01:06:39,215 INFO L78 Accepts]: Start accepts. Automaton has 37065 states and 59352 transitions. Word has length 135 [2024-11-07 01:06:39,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:39,216 INFO L471 AbstractCegarLoop]: Abstraction has 37065 states and 59352 transitions. [2024-11-07 01:06:39,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:39,216 INFO L276 IsEmpty]: Start isEmpty. Operand 37065 states and 59352 transitions. [2024-11-07 01:06:39,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:39,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:39,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:39,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:06:39,239 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:39,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:39,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1703008213, now seen corresponding path program 1 times [2024-11-07 01:06:39,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:39,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325932895] [2024-11-07 01:06:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:39,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:39,423 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 01:06:39,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:39,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325932895] [2024-11-07 01:06:39,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325932895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:39,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:39,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:39,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916520070] [2024-11-07 01:06:39,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:39,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:39,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:39,425 INFO L87 Difference]: Start difference. First operand 37065 states and 59352 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:06:46,050 INFO L93 Difference]: Finished difference Result 140126 states and 224504 transitions. [2024-11-07 01:06:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:06:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:06:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:06:46,549 INFO L225 Difference]: With dead ends: 140126 [2024-11-07 01:06:46,549 INFO L226 Difference]: Without dead ends: 105198 [2024-11-07 01:06:46,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:06:46,672 INFO L432 NwaCegarLoop]: 4247 mSDtfsCounter, 5225 mSDsluCounter, 16850 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5239 SdHoareTripleChecker+Valid, 21097 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 01:06:46,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5239 Valid, 21097 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 01:06:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105198 states. [2024-11-07 01:06:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105198 to 70314. [2024-11-07 01:06:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70314 states, 64394 states have (on average 1.5370531415970432) internal successors, (98977), 64653 states have internal predecessors, (98977), 4120 states have call successors, (4120), 1543 states have call predecessors, (4120), 1798 states have return successors, (10935), 4373 states have call predecessors, (10935), 4118 states have call successors, (10935) [2024-11-07 01:06:50,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70314 states to 70314 states and 114032 transitions. [2024-11-07 01:06:50,499 INFO L78 Accepts]: Start accepts. Automaton has 70314 states and 114032 transitions. Word has length 135 [2024-11-07 01:06:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:06:50,500 INFO L471 AbstractCegarLoop]: Abstraction has 70314 states and 114032 transitions. [2024-11-07 01:06:50,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:06:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 70314 states and 114032 transitions. [2024-11-07 01:06:50,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-07 01:06:50,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:06:50,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:06:50,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:06:50,538 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:06:50,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:06:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1968677481, now seen corresponding path program 1 times [2024-11-07 01:06:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:06:50,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881558001] [2024-11-07 01:06:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:06:50,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:06:50,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:06:50,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-07 01:06:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-07 01:06:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 01:06:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-07 01:06:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:06:50,729 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 01:06:50,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:06:50,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881558001] [2024-11-07 01:06:50,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881558001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:06:50,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:06:50,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:06:50,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324267868] [2024-11-07 01:06:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:06:50,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:06:50,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:06:50,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:06:50,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:06:50,730 INFO L87 Difference]: Start difference. First operand 70314 states and 114032 transitions. Second operand has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:00,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:00,640 INFO L93 Difference]: Finished difference Result 269053 states and 438350 transitions. [2024-11-07 01:07:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:07:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.714285714285715) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 135 [2024-11-07 01:07:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:01,351 INFO L225 Difference]: With dead ends: 269053 [2024-11-07 01:07:01,352 INFO L226 Difference]: Without dead ends: 200876 [2024-11-07 01:07:01,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:07:01,702 INFO L432 NwaCegarLoop]: 4401 mSDtfsCounter, 5340 mSDsluCounter, 17348 mSDsCounter, 0 mSdLazyCounter, 2405 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5364 SdHoareTripleChecker+Valid, 21749 SdHoareTripleChecker+Invalid, 2467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:01,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5364 Valid, 21749 Invalid, 2467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2405 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:07:01,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200876 states.