./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.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_label45+token_ring.05.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', '27587b975a36272f97d565edc796c457ff04a64b538fe9933b800d0dda8dcceb'] 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_label45+token_ring.05.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 27587b975a36272f97d565edc796c457ff04a64b538fe9933b800d0dda8dcceb --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:03:01,248 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:03:01,320 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:03:01,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:03:01,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:03:01,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:03:01,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:03:01,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:03:01,360 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:03:01,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:03:01,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:03:01,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:03:01,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:03:01,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:03:01,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:03:01,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:03:01,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:03:01,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:03:01,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:03:01,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:03:01,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:03:01,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:01,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:03:01,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:03:01,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:03:01,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:03:01,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:03:01,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:03:01,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:03:01,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:03:01,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:03:01,365 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 -> 27587b975a36272f97d565edc796c457ff04a64b538fe9933b800d0dda8dcceb [2024-11-07 01:03:01,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:03:01,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:03:01,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:03:01,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:03:01,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:03:01,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-2.c [2024-11-07 01:03:02,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:03:03,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:03:03,781 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.05.cil-2.c [2024-11-07 01:03:03,840 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0af86def5/a806f7426bed45a4a0cccff2b64ea9cb/FLAGf5a1d3f19 [2024-11-07 01:03:04,061 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0af86def5/a806f7426bed45a4a0cccff2b64ea9cb [2024-11-07 01:03:04,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:03:04,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:03:04,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:04,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:03:04,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:03:04,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:04" (1/1) ... [2024-11-07 01:03:04,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba3dd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:04, skipping insertion in model container [2024-11-07 01:03:04,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:03:04" (1/1) ... [2024-11-07 01:03:04,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:03:05,623 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_label45+token_ring.05.cil-2.c[380323,380336] [2024-11-07 01:03:05,664 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_label45+token_ring.05.cil-2.c[383339,383352] [2024-11-07 01:03:05,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:05,886 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:03:06,585 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_label45+token_ring.05.cil-2.c[380323,380336] [2024-11-07 01:03:06,591 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_label45+token_ring.05.cil-2.c[383339,383352] [2024-11-07 01:03:06,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:03:06,666 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:03:06,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06 WrapperNode [2024-11-07 01:03:06,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:03:06,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:06,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:03:06,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:03:06,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:06,764 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,222 INFO L138 Inliner]: procedures = 54, calls = 57, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 12819 [2024-11-07 01:03:07,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:03:07,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:03:07,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:03:07,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:03:07,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,276 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,433 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 01:03:07,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,833 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:03:07,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:03:07,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:03:07,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:03:07,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (1/1) ... [2024-11-07 01:03:07,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:03:07,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:03:08,009 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 01:03:08,016 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 01:03:08,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:03:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:03:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:03:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:03:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:03:08,037 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:03:08,037 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:03:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-07 01:03:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-07 01:03:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:03:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:03:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:03:08,038 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:03:08,038 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:03:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:03:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:03:08,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:03:08,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:03:08,186 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:03:08,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:03:16,522 INFO L? ?]: Removed 1717 outVars from TransFormulas that were not future-live. [2024-11-07 01:03:16,523 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:03:16,591 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:03:16,592 INFO L316 CfgBuilder]: Removed 9 assume(true) statements. [2024-11-07 01:03:16,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:16 BoogieIcfgContainer [2024-11-07 01:03:16,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:03:16,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:03:16,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:03:16,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:03:16,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:03:04" (1/3) ... [2024-11-07 01:03:16,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af57428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:16, skipping insertion in model container [2024-11-07 01:03:16,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:03:06" (2/3) ... [2024-11-07 01:03:16,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af57428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:03:16, skipping insertion in model container [2024-11-07 01:03:16,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:03:16" (3/3) ... [2024-11-07 01:03:16,604 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.05.cil-2.c [2024-11-07 01:03:16,618 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:03:16,619 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:03:16,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:03:16,755 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;@2cd97744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:03:16,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:03:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 2404 states, 2373 states have (on average 1.8508217446270543) internal successors, (4392), 2378 states have internal predecessors, (4392), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-07 01:03:16,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:16,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:16,784 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] [2024-11-07 01:03:16,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:16,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash 528623418, now seen corresponding path program 1 times [2024-11-07 01:03:16,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:16,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360659842] [2024-11-07 01:03:16,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:16,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:17,311 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 01:03:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:17,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360659842] [2024-11-07 01:03:17,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360659842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:17,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:17,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:03:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919238877] [2024-11-07 01:03:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:17,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:03:17,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:03:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:03:17,349 INFO L87 Difference]: Start difference. First operand has 2404 states, 2373 states have (on average 1.8508217446270543) internal successors, (4392), 2378 states have internal predecessors, (4392), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 01:03:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:18,415 INFO L93 Difference]: Finished difference Result 4864 states and 8965 transitions. [2024-11-07 01:03:18,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:03:18,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:18,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:18,452 INFO L225 Difference]: With dead ends: 4864 [2024-11-07 01:03:18,452 INFO L226 Difference]: Without dead ends: 2401 [2024-11-07 01:03:18,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:03:18,470 INFO L432 NwaCegarLoop]: 4233 mSDtfsCounter, 531 mSDsluCounter, 12313 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 16546 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:18,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 16546 Invalid, 544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:03:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2024-11-07 01:03:18,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2336. [2024-11-07 01:03:18,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2307 states have (on average 1.8391850888599914) internal successors, (4243), 2310 states have internal predecessors, (4243), 21 states have call successors, (21), 7 states have call predecessors, (21), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-07 01:03:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4283 transitions. [2024-11-07 01:03:18,656 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4283 transitions. Word has length 102 [2024-11-07 01:03:18,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:18,656 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 4283 transitions. [2024-11-07 01:03:18,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 01:03:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4283 transitions. [2024-11-07 01:03:18,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:18,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:18,661 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] [2024-11-07 01:03:18,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:03:18,662 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:18,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:18,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1825761864, now seen corresponding path program 1 times [2024-11-07 01:03:18,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:18,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112800243] [2024-11-07 01:03:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:18,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:18,999 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 01:03:19,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:19,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112800243] [2024-11-07 01:03:19,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112800243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:19,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:19,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:03:19,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261860130] [2024-11-07 01:03:19,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:19,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:03:19,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:19,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:03:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:03:19,004 INFO L87 Difference]: Start difference. First operand 2336 states and 4283 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 01:03:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:20,492 INFO L93 Difference]: Finished difference Result 2874 states and 5126 transitions. [2024-11-07 01:03:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 01:03:20,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:20,512 INFO L225 Difference]: With dead ends: 2874 [2024-11-07 01:03:20,512 INFO L226 Difference]: Without dead ends: 2672 [2024-11-07 01:03:20,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:03:20,516 INFO L432 NwaCegarLoop]: 4148 mSDtfsCounter, 4735 mSDsluCounter, 12439 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 16587 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:20,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 16587 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:03:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2024-11-07 01:03:20,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2541. [2024-11-07 01:03:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2491 states have (on average 1.8177438779606583) internal successors, (4528), 2495 states have internal predecessors, (4528), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (36), 33 states have call predecessors, (36), 33 states have call successors, (36) [2024-11-07 01:03:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 4599 transitions. [2024-11-07 01:03:20,622 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 4599 transitions. Word has length 102 [2024-11-07 01:03:20,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:20,623 INFO L471 AbstractCegarLoop]: Abstraction has 2541 states and 4599 transitions. [2024-11-07 01:03:20,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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 01:03:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 4599 transitions. [2024-11-07 01:03:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:20,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:20,628 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] [2024-11-07 01:03:20,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:03:20,628 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:20,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:20,629 INFO L85 PathProgramCache]: Analyzing trace with hash 785390260, now seen corresponding path program 1 times [2024-11-07 01:03:20,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:20,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799421490] [2024-11-07 01:03:20,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:20,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:20,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:20,902 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 01:03:20,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:20,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799421490] [2024-11-07 01:03:20,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799421490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:20,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:20,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:20,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855104917] [2024-11-07 01:03:20,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:20,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:20,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:20,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:20,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:20,905 INFO L87 Difference]: Start difference. First operand 2541 states and 4599 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:23,064 INFO L93 Difference]: Finished difference Result 3354 states and 5869 transitions. [2024-11-07 01:03:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:23,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:23,082 INFO L225 Difference]: With dead ends: 3354 [2024-11-07 01:03:23,082 INFO L226 Difference]: Without dead ends: 2947 [2024-11-07 01:03:23,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:23,086 INFO L432 NwaCegarLoop]: 4291 mSDtfsCounter, 4748 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4760 SdHoareTripleChecker+Valid, 21236 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:23,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4760 Valid, 21236 Invalid, 1808 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 1757 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 01:03:23,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2024-11-07 01:03:23,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 2733. [2024-11-07 01:03:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2733 states, 2662 states have (on average 1.7982719759579264) internal successors, (4787), 2667 states have internal predecessors, (4787), 49 states have call successors, (49), 19 states have call predecessors, (49), 20 states have return successors, (52), 48 states have call predecessors, (52), 47 states have call successors, (52) [2024-11-07 01:03:23,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2733 states to 2733 states and 4888 transitions. [2024-11-07 01:03:23,185 INFO L78 Accepts]: Start accepts. Automaton has 2733 states and 4888 transitions. Word has length 102 [2024-11-07 01:03:23,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:23,187 INFO L471 AbstractCegarLoop]: Abstraction has 2733 states and 4888 transitions. [2024-11-07 01:03:23,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:23,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2733 states and 4888 transitions. [2024-11-07 01:03:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:23,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:23,189 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] [2024-11-07 01:03:23,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:03:23,190 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:23,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:23,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1633094218, now seen corresponding path program 1 times [2024-11-07 01:03:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454152076] [2024-11-07 01:03:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:23,404 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 01:03:23,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:23,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454152076] [2024-11-07 01:03:23,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454152076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:23,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:23,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:23,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97402864] [2024-11-07 01:03:23,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:23,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:23,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:23,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:23,407 INFO L87 Difference]: Start difference. First operand 2733 states and 4888 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:25,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:25,065 INFO L93 Difference]: Finished difference Result 4060 states and 6958 transitions. [2024-11-07 01:03:25,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:25,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:25,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:25,087 INFO L225 Difference]: With dead ends: 4060 [2024-11-07 01:03:25,087 INFO L226 Difference]: Without dead ends: 3461 [2024-11-07 01:03:25,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:25,094 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4742 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4754 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:25,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4754 Valid, 21234 Invalid, 1789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:03:25,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2024-11-07 01:03:25,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3121. [2024-11-07 01:03:25,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3008 states have (on average 1.7659574468085106) internal successors, (5312), 3015 states have internal predecessors, (5312), 77 states have call successors, (77), 31 states have call predecessors, (77), 34 states have return successors, (88), 78 states have call predecessors, (88), 75 states have call successors, (88) [2024-11-07 01:03:25,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 5477 transitions. [2024-11-07 01:03:25,224 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 5477 transitions. Word has length 102 [2024-11-07 01:03:25,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:25,225 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 5477 transitions. [2024-11-07 01:03:25,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:25,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 5477 transitions. [2024-11-07 01:03:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:25,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:25,227 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] [2024-11-07 01:03:25,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:03:25,228 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:25,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:25,228 INFO L85 PathProgramCache]: Analyzing trace with hash -308238024, now seen corresponding path program 1 times [2024-11-07 01:03:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:25,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712776907] [2024-11-07 01:03:25,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:25,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:25,420 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 01:03:25,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:25,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712776907] [2024-11-07 01:03:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712776907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:25,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:25,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:25,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222042548] [2024-11-07 01:03:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:25,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:25,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:25,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:25,422 INFO L87 Difference]: Start difference. First operand 3121 states and 5477 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:26,974 INFO L93 Difference]: Finished difference Result 5430 states and 9063 transitions. [2024-11-07 01:03:26,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:26,975 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:26,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:26,998 INFO L225 Difference]: With dead ends: 5430 [2024-11-07 01:03:26,998 INFO L226 Difference]: Without dead ends: 4443 [2024-11-07 01:03:27,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:27,005 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4741 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4753 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:27,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4753 Valid, 21234 Invalid, 1776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:03:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2024-11-07 01:03:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 3898. [2024-11-07 01:03:27,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3898 states, 3701 states have (on average 1.7189948662523642) internal successors, (6362), 3712 states have internal predecessors, (6362), 133 states have call successors, (133), 55 states have call predecessors, (133), 62 states have return successors, (166), 138 states have call predecessors, (166), 131 states have call successors, (166) [2024-11-07 01:03:27,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 6661 transitions. [2024-11-07 01:03:27,169 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 6661 transitions. Word has length 102 [2024-11-07 01:03:27,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:27,169 INFO L471 AbstractCegarLoop]: Abstraction has 3898 states and 6661 transitions. [2024-11-07 01:03:27,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 6661 transitions. [2024-11-07 01:03:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:27,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:27,172 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] [2024-11-07 01:03:27,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:03:27,173 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:27,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:27,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1258519926, now seen corresponding path program 1 times [2024-11-07 01:03:27,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:27,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772377269] [2024-11-07 01:03:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:27,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:27,348 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 01:03:27,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:27,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772377269] [2024-11-07 01:03:27,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772377269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:27,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:27,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:27,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512107019] [2024-11-07 01:03:27,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:27,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:27,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:27,351 INFO L87 Difference]: Start difference. First operand 3898 states and 6661 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:29,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:29,051 INFO L93 Difference]: Finished difference Result 8169 states and 13289 transitions. [2024-11-07 01:03:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:03:29,052 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:29,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:29,083 INFO L225 Difference]: With dead ends: 8169 [2024-11-07 01:03:29,083 INFO L226 Difference]: Without dead ends: 6405 [2024-11-07 01:03:29,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:03:29,093 INFO L432 NwaCegarLoop]: 4289 mSDtfsCounter, 4740 mSDsluCounter, 16945 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4752 SdHoareTripleChecker+Valid, 21234 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:29,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4752 Valid, 21234 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:03:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2024-11-07 01:03:29,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 5459. [2024-11-07 01:03:29,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5459 states, 5094 states have (on average 1.663133097762073) internal successors, (8472), 5113 states have internal predecessors, (8472), 245 states have call successors, (245), 103 states have call predecessors, (245), 118 states have return successors, (340), 258 states have call predecessors, (340), 243 states have call successors, (340) [2024-11-07 01:03:29,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5459 states to 5459 states and 9057 transitions. [2024-11-07 01:03:29,369 INFO L78 Accepts]: Start accepts. Automaton has 5459 states and 9057 transitions. Word has length 102 [2024-11-07 01:03:29,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:29,369 INFO L471 AbstractCegarLoop]: Abstraction has 5459 states and 9057 transitions. [2024-11-07 01:03:29,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 5459 states and 9057 transitions. [2024-11-07 01:03:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:29,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:29,375 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] [2024-11-07 01:03:29,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:03:29,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:29,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash 200681848, now seen corresponding path program 1 times [2024-11-07 01:03:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:29,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102646235] [2024-11-07 01:03:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:29,535 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 01:03:29,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:29,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102646235] [2024-11-07 01:03:29,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102646235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:29,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:29,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:29,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728042635] [2024-11-07 01:03:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:29,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:29,538 INFO L87 Difference]: Start difference. First operand 5459 states and 9057 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:31,274 INFO L93 Difference]: Finished difference Result 14912 states and 23693 transitions. [2024-11-07 01:03:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:31,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:31,368 INFO L225 Difference]: With dead ends: 14912 [2024-11-07 01:03:31,368 INFO L226 Difference]: Without dead ends: 11587 [2024-11-07 01:03:31,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:31,380 INFO L432 NwaCegarLoop]: 4160 mSDtfsCounter, 5004 mSDsluCounter, 16565 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5022 SdHoareTripleChecker+Valid, 20725 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:31,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5022 Valid, 20725 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 01:03:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11587 states. [2024-11-07 01:03:31,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11587 to 8548. [2024-11-07 01:03:31,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 7863 states have (on average 1.612870405697571) internal successors, (12682), 7898 states have internal predecessors, (12682), 453 states have call successors, (453), 199 states have call predecessors, (453), 230 states have return successors, (726), 482 states have call predecessors, (726), 451 states have call successors, (726) [2024-11-07 01:03:31,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 13861 transitions. [2024-11-07 01:03:31,918 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 13861 transitions. Word has length 102 [2024-11-07 01:03:31,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:31,919 INFO L471 AbstractCegarLoop]: Abstraction has 8548 states and 13861 transitions. [2024-11-07 01:03:31,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:31,919 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 13861 transitions. [2024-11-07 01:03:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:31,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:31,927 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] [2024-11-07 01:03:31,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:03:31,928 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:31,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:31,928 INFO L85 PathProgramCache]: Analyzing trace with hash -941820618, now seen corresponding path program 1 times [2024-11-07 01:03:31,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820308916] [2024-11-07 01:03:31,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:31,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:32,116 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 01:03:32,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:32,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820308916] [2024-11-07 01:03:32,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820308916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:32,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:32,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:32,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476912418] [2024-11-07 01:03:32,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:32,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:32,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:32,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:32,118 INFO L87 Difference]: Start difference. First operand 8548 states and 13861 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:34,586 INFO L93 Difference]: Finished difference Result 26607 states and 42003 transitions. [2024-11-07 01:03:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:34,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:34,674 INFO L225 Difference]: With dead ends: 26607 [2024-11-07 01:03:34,674 INFO L226 Difference]: Without dead ends: 20193 [2024-11-07 01:03:34,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:34,700 INFO L432 NwaCegarLoop]: 4286 mSDtfsCounter, 4780 mSDsluCounter, 16934 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 21220 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:34,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 21220 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:03:34,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20193 states. [2024-11-07 01:03:35,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20193 to 14389. [2024-11-07 01:03:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14389 states, 13080 states have (on average 1.570336391437309) internal successors, (20540), 13147 states have internal predecessors, (20540), 853 states have call successors, (853), 391 states have call predecessors, (853), 454 states have return successors, (1644), 914 states have call predecessors, (1644), 851 states have call successors, (1644) [2024-11-07 01:03:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14389 states to 14389 states and 23037 transitions. [2024-11-07 01:03:35,569 INFO L78 Accepts]: Start accepts. Automaton has 14389 states and 23037 transitions. Word has length 102 [2024-11-07 01:03:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:35,570 INFO L471 AbstractCegarLoop]: Abstraction has 14389 states and 23037 transitions. [2024-11-07 01:03:35,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:35,570 INFO L276 IsEmpty]: Start isEmpty. Operand 14389 states and 23037 transitions. [2024-11-07 01:03:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:35,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:35,582 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] [2024-11-07 01:03:35,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:03:35,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:35,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash -701580872, now seen corresponding path program 1 times [2024-11-07 01:03:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:35,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343463682] [2024-11-07 01:03:35,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:35,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:35,734 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 01:03:35,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:35,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343463682] [2024-11-07 01:03:35,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343463682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:35,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:35,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:35,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629566453] [2024-11-07 01:03:35,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:35,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:35,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:35,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:35,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:35,737 INFO L87 Difference]: Start difference. First operand 14389 states and 23037 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:38,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:38,869 INFO L93 Difference]: Finished difference Result 48446 states and 76569 transitions. [2024-11-07 01:03:38,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:38,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:39,074 INFO L225 Difference]: With dead ends: 48446 [2024-11-07 01:03:39,075 INFO L226 Difference]: Without dead ends: 36191 [2024-11-07 01:03:39,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:39,135 INFO L432 NwaCegarLoop]: 4287 mSDtfsCounter, 4872 mSDsluCounter, 16937 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4890 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:39,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4890 Valid, 21224 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:03:39,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36191 states. [2024-11-07 01:03:40,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36191 to 26358. [2024-11-07 01:03:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26358 states, 23833 states have (on average 1.5466789745311122) internal successors, (36862), 23964 states have internal predecessors, (36862), 1621 states have call successors, (1621), 775 states have call predecessors, (1621), 902 states have return successors, (3934), 1746 states have call predecessors, (3934), 1619 states have call successors, (3934) [2024-11-07 01:03:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26358 states to 26358 states and 42417 transitions. [2024-11-07 01:03:40,794 INFO L78 Accepts]: Start accepts. Automaton has 26358 states and 42417 transitions. Word has length 102 [2024-11-07 01:03:40,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:40,794 INFO L471 AbstractCegarLoop]: Abstraction has 26358 states and 42417 transitions. [2024-11-07 01:03:40,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand 26358 states and 42417 transitions. [2024-11-07 01:03:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:40,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:40,815 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] [2024-11-07 01:03:40,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:03:40,815 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:40,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 137452790, now seen corresponding path program 1 times [2024-11-07 01:03:40,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:40,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675897189] [2024-11-07 01:03:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:40,962 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 01:03:40,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:40,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675897189] [2024-11-07 01:03:40,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675897189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:40,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:40,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:40,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796491231] [2024-11-07 01:03:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:40,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:40,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:40,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:40,964 INFO L87 Difference]: Start difference. First operand 26358 states and 42417 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:45,717 INFO L93 Difference]: Finished difference Result 91837 states and 147423 transitions. [2024-11-07 01:03:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:03:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:46,062 INFO L225 Difference]: With dead ends: 91837 [2024-11-07 01:03:46,062 INFO L226 Difference]: Without dead ends: 67613 [2024-11-07 01:03:46,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:03:46,179 INFO L432 NwaCegarLoop]: 4287 mSDtfsCounter, 4838 mSDsluCounter, 16937 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 21224 SdHoareTripleChecker+Invalid, 1702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:46,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4856 Valid, 21224 Invalid, 1702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:03:46,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67613 states. [2024-11-07 01:03:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67613 to 50231. [2024-11-07 01:03:48,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50231 states, 45338 states have (on average 1.534430279235961) internal successors, (69568), 45597 states have internal predecessors, (69568), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-07 01:03:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50231 states to 50231 states and 82569 transitions. [2024-11-07 01:03:48,835 INFO L78 Accepts]: Start accepts. Automaton has 50231 states and 82569 transitions. Word has length 102 [2024-11-07 01:03:48,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:48,836 INFO L471 AbstractCegarLoop]: Abstraction has 50231 states and 82569 transitions. [2024-11-07 01:03:48,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:48,836 INFO L276 IsEmpty]: Start isEmpty. Operand 50231 states and 82569 transitions. [2024-11-07 01:03:48,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:48,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:48,875 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] [2024-11-07 01:03:48,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 01:03:48,875 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:48,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:48,877 INFO L85 PathProgramCache]: Analyzing trace with hash 164518392, now seen corresponding path program 1 times [2024-11-07 01:03:48,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:48,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088448175] [2024-11-07 01:03:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:48,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:48,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:49,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:49,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:49,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:49,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:49,043 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 01:03:49,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:49,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088448175] [2024-11-07 01:03:49,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088448175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:49,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:49,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:03:49,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410060722] [2024-11-07 01:03:49,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:49,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:03:49,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:49,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:03:49,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:03:49,045 INFO L87 Difference]: Start difference. First operand 50231 states and 82569 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:53,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:03:53,450 INFO L93 Difference]: Finished difference Result 110182 states and 185520 transitions. [2024-11-07 01:03:53,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 01:03:53,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-11-07 01:03:53,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:03:53,701 INFO L225 Difference]: With dead ends: 110182 [2024-11-07 01:03:53,701 INFO L226 Difference]: Without dead ends: 62085 [2024-11-07 01:03:53,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-07 01:03:53,805 INFO L432 NwaCegarLoop]: 4133 mSDtfsCounter, 4630 mSDsluCounter, 12297 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4643 SdHoareTripleChecker+Valid, 16430 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:03:53,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4643 Valid, 16430 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 01:03:53,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62085 states. [2024-11-07 01:03:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62085 to 50231. [2024-11-07 01:03:56,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50231 states, 45338 states have (on average 1.5287617451144735) internal successors, (69311), 45597 states have internal predecessors, (69311), 3093 states have call successors, (3093), 1543 states have call predecessors, (3093), 1798 states have return successors, (9908), 3346 states have call predecessors, (9908), 3091 states have call successors, (9908) [2024-11-07 01:03:56,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50231 states to 50231 states and 82312 transitions. [2024-11-07 01:03:56,507 INFO L78 Accepts]: Start accepts. Automaton has 50231 states and 82312 transitions. Word has length 102 [2024-11-07 01:03:56,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:03:56,507 INFO L471 AbstractCegarLoop]: Abstraction has 50231 states and 82312 transitions. [2024-11-07 01:03:56,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 01:03:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 50231 states and 82312 transitions. [2024-11-07 01:03:56,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-07 01:03:56,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:03:56,541 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] [2024-11-07 01:03:56,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 01:03:56,541 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:03:56,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:03:56,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1898622842, now seen corresponding path program 1 times [2024-11-07 01:03:56,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:03:56,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572574288] [2024-11-07 01:03:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:03:56,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:03:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:03:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-07 01:03:56,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-07 01:03:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 01:03:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-07 01:03:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:03:56,666 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 01:03:56,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:03:56,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572574288] [2024-11-07 01:03:56,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572574288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:03:56,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:03:56,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 01:03:56,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584155880] [2024-11-07 01:03:56,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:03:56,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 01:03:56,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:03:56,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 01:03:56,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 01:03:56,668 INFO L87 Difference]: Start difference. First operand 50231 states and 82312 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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)